#thermal camera systems

[hellbenderai01]

Transforming Vision Technology with Hellbender

In today's technology-driven world, vision systems are pivotal across numerous industries. Hellbender, a pioneer in innovative technology solutions, is leading the charge in this field. This article delves into the remarkable advancements and applications of vision technology, spotlighting key components such as the Raspberry Pi Camera, Edge Computing Camera, Raspberry Pi Camera Module, Raspberry Pi Thermal Camera, Nvidia Jetson Computer Vision, and Vision Systems for Manufacturing.

Unleashing Potential with the Raspberry Pi Camera

The Raspberry Pi Camera is a powerful tool widely used by hobbyists and professionals alike. Its affordability and user-friendliness have made it a favorite for DIY projects and educational purposes. Yet, its applications extend far beyond these basic uses.

The Raspberry Pi Camera is incredibly adaptable, finding uses in security systems, time-lapse photography, and wildlife monitoring. Its capability to capture high-definition images and videos makes it an essential component for numerous innovative projects.

Revolutionizing Real-Time Data with Edge Computing Camera

As real-time data processing becomes more crucial, the Edge Computing Camera stands out as a game-changer. Unlike traditional cameras that rely on centralized data processing, edge computing cameras process data at the source, significantly reducing latency and bandwidth usage. This is vital for applications needing immediate response times, such as autonomous vehicles and industrial automation.

Hellbender's edge computing cameras offer exceptional performance and reliability. These cameras are equipped to handle complex algorithms and data processing tasks, enabling advanced functionalities like object detection, facial recognition, and anomaly detection. By processing data locally, these cameras enhance the efficiency and effectiveness of vision systems across various industries.

Enhancing Projects with the Raspberry Pi Camera Module

The Raspberry Pi Camera Module enhances the Raspberry Pi ecosystem with its compact and powerful design. This module integrates seamlessly with Raspberry Pi boards, making it easy to add vision capabilities to projects. Whether for prototyping, research, or production, the Raspberry Pi Camera Module provides flexibility and performance.

With different models available, including the standard camera module and the high-quality camera, users can select the best option for their specific needs. The high-quality camera offers improved resolution and low-light performance, making it suitable for professional applications. This versatility makes the Raspberry Pi Camera Module a crucial tool for developers and engineers.

Harnessing Thermal Imaging with the Raspberry Pi Thermal Camera

Thermal imaging is becoming increasingly vital in various sectors, from industrial maintenance to healthcare. The Raspberry Pi Thermal Camera combines the Raspberry Pi platform with thermal imaging capabilities, providing an affordable solution for thermal analysis.

This camera is used for monitoring electrical systems for overheating, detecting heat leaks in buildings, and performing non-invasive medical diagnostics. The ability to visualize temperature differences in real-time offers new opportunities for preventive maintenance and safety measures. Hellbender’s thermal camera solutions ensure accurate and reliable thermal imaging, empowering users to make informed decisions.

Advancing AI with Nvidia Jetson Computer Vision

The Nvidia Jetson platform has revolutionized AI-powered vision systems. The Nvidia Jetson Computer Vision capabilities are transforming industries by enabling sophisticated machine learning and computer vision applications. Hellbender leverages this powerful platform to develop cutting-edge solutions that expand the possibilities of vision technology.

Jetson-powered vision systems are employed in autonomous machines, robotics, and smart cities. These systems can process vast amounts of data in real-time, making them ideal for applications requiring high accuracy and speed. By integrating Nvidia Jetson technology, Hellbender creates vision systems that are both powerful and efficient, driving innovation across multiple sectors.

Optimizing Production with Vision Systems for Manufacturing

In the manufacturing industry, vision systems are essential for ensuring quality and efficiency. Hellbender's Vision Systems for Manufacturing are designed to meet the high demands of modern production environments. These systems use advanced imaging and processing techniques to inspect products, monitor processes, and optimize operations.

One major advantage of vision systems in manufacturing is their ability to detect defects and inconsistencies that may be invisible to the human eye. This capability helps maintain high-quality standards and reduces waste. Additionally, vision systems can automate repetitive tasks, allowing human resources to focus on more complex and strategic activities.

Conclusion

Hellbender’s dedication to advancing vision technology is clear in their diverse range of solutions. From the versatile Raspberry Pi Camera and the innovative Edge Computing Camera to the powerful Nvidia Jetson Computer Vision and robust Vision Systems for Manufacturing, Hellbender continues to lead in technological innovation. By providing reliable, efficient, and cutting-edge solutions, Hellbender is helping industries harness the power of vision technology to achieve greater efficiency, accuracy, and productivity. As technology continues to evolve, the integration of these advanced systems will open up new possibilities and drive further advancements across various fields.

[liquidplates]

Innovating the Thermal Management System Market

Dive into our comprehensive thermal management system market offerings, meticulously designed to optimize performance across diverse applications. Explore our range of cutting-edge cold plate technology, crafted with precision engineering to deliver unparalleled efficiency in dissipating heat. From electronics to automotive, our solutions are tailored to meet the exacting demands of modern industries. Stay ahead with our innovative thermal management solutions, ensuring your systems operate at peak performance levels, regardless of the operating environment. Trust us to elevate your thermal management strategy to new heights.

[rssecurityswingturnstile]

1: dc brushless speed turnstiles barriers

servo motor speed turnstiles barriers is a typical door type, which primarily consists of door frames, door leaves, door deals with and locks. Door frames are generally made of steel plates or wooden boards, and door leaves are made from cardboard, plastic plates or glass plates. The door deal with is a device that pulls or pushes the door leaf open, and the lock is a device that prevents the door leaf from falling out of the door frame. There are normally 2 methods to open a door, one is to pull the door and the other is to press the door. The sliding door is opened by the door deal with pulling the door leaf away from the door frame, while the sliding door is opened by the door handle pressing the door leaf far from the door frame.

2: servo motor wing barrier doors

dc brushless wing barrier gate and servo motor speedgate turnstiles barrier In comparison, train flap barrier gate is created to obstruct water circulation through its horizontal position. On the other hand, dc brushless swing turnstiles gates merely manages the flow of water by altering the vertical position of eviction. city flap turnstile The gate of doors is composed of two gates that can be moved horizontally to control the flow of water. servo motor wing turnstiles Eviction of doors is made up of a gate that can manage the circulation of water by moving vertically.

3: train flap turnstile door

subway flap turnstiles gates, also referred to as movable gate, is a flood discharge facility that prevents the water level from being expensive or too low. When the water level rises to the set worth, metro flap barriers gate will automatically open. When the water level drops to the set worth, subway flap barriers gate The door will close instantly. train flap barrier doors utilizes a water level sensor to monitor water level modifications and controls the opening or closing of eviction to achieve the purpose of immediately controlling the water level.

4: What's the distinction?

dc motor wing barrier doors normally refers to closing the gate, while dc brushless fastlane turntsile barriers refers to opening the gate. city flap turnstile gates and dc brushless wing barrier doors is different from servo motor speed turnstiles barrier. It is a gate installed on the water. And dc motor swing gates door and servo motor speedgate turntsile barrier are gates mounted on the wall.

[cathkaesque]

Relentless direct action has secured another victory in the fight against Israel’s arms trade, as Elbit Systems are forced to sell their ‘Elite KL’ factory in Tamworth.

The company had previously manufactured cooling and power management systems for military vehicles, but was sold on after stating that it faced falling profits and increased security costs resulting from Palestine Action’s efforts. 

After the sale was completed last month, Elite KL’s new owners, listed as Griffin Newco Ltd, confirmed in an email to Palestine Action that they will have nothing to do with the previous owners, Elbit, and have discontinued any arms manufacturing:

“Following the recent acquisition of Elite KL Limited by a UK investment syndicate, the newly appointed board has unanimously agreed to withdraw from all future defence contracts and terminate its association with its former parent company”.

This victory is a direct result of sustained direct action which has sought, throughout Palestine Action’s existence, to make it impossible for Elbit to afford to operate in Britain. Before they sold the enterprise to a private equity syndicate, Elbit had reported that Elite KL operating profits had been slashed by over three-quarters, with Palestine Action responsible: Elbit directly cited the increased expenditure on security they’d been forced to make, and higher supply chain costs they faced.

And these actions did, indeed, cost them. The first action at the site, in November 2020, saw Elite KL’s premises smashed into, the building covered in blood-red paint. Between March and July 2021, the site was put out of action three times by roof-top occupations – drenched red in March 2021, with the factory’s camera systems dismantled, before again being occupied in in May. Another roof-top occupation in July, despite increased security, saw the site forced closed – once again painted blood-red, and with its windows and fixings smashed through.

In February 2022, activists decommissioned the site for weeks – closed off after an occupation that saw over £250,000 of damages caused, the roof tiles removed one-by-one. After this, Elbit erected a security perimeter around the site – but to no avail. One month later, six were arrested after Palestine Action returned to Tamworth – again taking the roof and smashing through, preventing the production of parts for Israel’s military machine.

Elite KL is a ‘specialist thermal management business’. Since the sale, the company focuses on cooling systems for buses and trains, but it had, under Elbit, manufactured these systems for military vehicles. Until December of last year, Elite KL’s website was advertising its military and defence products, and it was known to provide parts for Israel’s deadly Merkava tanks, with export license records demonstrating its provision of ‘ML6a’ components for military ground vehicles to Israel. The company was also known to manufacture crew cooling systems, for the military vests of tank operators.

Elbit Systems itself provides 85% of the drones and land-based military equipment for the Israeli military, along with a wide range of the munitions and armaments currently being used against Gaza’s beseiged population. Its CEO, Bazhalel Machlis, has claimed that the Israeli military has offered the company its thanks for their “crucial” services during the ongoing genocide in Gaza

A Palestine Action spokesperson has stated:

“Each activist who occupied and dismantled Tamworth’s Israeli weapons factory did so in order to bring an end to Israel’s weapons trade, and to end the profiteering from Palestinian repression. Every defeat Elbit faces is a victory for the Palestinian people.

Kicking Elbit out of Tamworth shows once again that direct action is a necessary tactic. It is one which must be utilised and amplified in the face of the Gaza genocide.”

[nasa]

25 Years of Exploring the Universe with NASA's Chandra Xray Observatory

Illustration of the Chandra telescope in orbit around Earth. Credit: NASA/CXC & J. Vaughan

On July 23, 1999, the space shuttle Columbia launched into orbit carrying NASA’s Chandra X-ray Observatory. August 26 marked 25 years since Chandra released its first images.

These were the first of more than 25,000 observations Chandra has taken. This year, as NASA celebrates the 25th anniversary of this telescope and the incredible data it has provided, we’re taking a peek at some of its most memorable moments.

About the Spacecraft

The Chandra telescope system uses four specialized mirrors to observe X-ray emissions across the universe. X-rays that strike a “regular” mirror head on will be absorbed, so Chandra’s mirrors are shaped like barrels and precisely constructed. The rest of the spacecraft system provides the support structure and environment necessary for the telescope and the science instruments to work as an observatory. To provide motion to the observatory, Chandra has two different sets of thrusters. To control the temperatures of critical components, Chandra's thermal control system consists of a cooling radiator, insulators, heaters, and thermostats. Chandra's electrical power comes from its solar arrays.

Learn more about the spacecraft's components that were developed and tested at NASA’s Marshall Space Flight Center in Huntsville, Alabama. Fun fact: If the state of Colorado were as smooth as the surface of the Chandra X-ray Observatory mirrors, Pike's Peak would be less than an inch tall.

Engineers in the X-ray Calibration Facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama, integrating the Chandra X-ray Observatory’s High-Resolution Camera with the mirror assembly, in this photo taken March 16, 1997. Credit: NASA

Launch

When space shuttle Columbia launched on July 23, 1999, Chandra was the heaviest and largest payload ever launched by the shuttle. Under the command of Col. Eileen Collins, Columbia lifted off the launch pad at NASA’s Kennedy Space Center in Florida. Chandra was deployed on the mission’s first day.

Reflected in the waters, space shuttle Columbia rockets into the night sky from Launch Pad 39-B on mission STS-93 from Kennedy Space Center. Credit: NASA

First Light Images

Just 34 days after launch, extraordinary first images from our Chandra X-ray Observatory were released. The image of supernova remnant Cassiopeia A traces the aftermath of a gigantic stellar explosion in such captivating detail that scientists can see evidence of what is likely the neutron star.

“We see the collision of the debris from the exploded star with the matter around it, we see shock waves rushing into interstellar space at millions of miles per hour,” said Harvey Tananbaum, founding Director of the Chandra X-ray Center at the Smithsonian Astrophysical Observatory.

Cassiopeia A is the remnant of a star that exploded about 300 years ago. The X-ray image shows an expanding shell of hot gas produced by the explosion colored in bright orange and yellows. Credit: NASA/CXC/SAO

A New Look at the Universe

NASA released 25 never-before-seen views to celebrate the telescopes 25th anniversary. This collection contains different types of objects in space and includes a new look at Cassiopeia A. Here the supernova remnant is seen with a quarter-century worth of Chandra observations (blue) plus recent views from NASA’s James Webb Space Telescope (grey and gold).

This image features deep data of the Cassiopeia A supernova, an expanding ball of matter and energy ejected from an exploding star in blues, greys and golds. The Cassiopeia A supernova remnant has been observed for over 2 million seconds since the start of Chandra’s mission in 1999 and has also recently been viewed by the James Webb Space Telescope. Credit: NASA/CXC/SAO

Can You Hear Me Now?

In 2020, experts at the Chandra X-ray Center/Smithsonian Astrophysical Observatory (SAO) and SYSTEM Sounds began the first ongoing, sustained effort at NASA to “sonify” (turn into sound) astronomical data. Data from NASA observatories such as Chandra, the Hubble Space Telescope, and the James Webb Space Telescope, has been translated into frequencies that can be heard by the human ear.

SAO Research shows that sonifications help many types of learners – especially those who are low-vision or blind -- engage with and enjoy astronomical data more.

Click to watch the “Listen to the Universe” documentary on NASA+ that explores our sonification work: Listen to the Universe | NASA+

An image of the striking croissant-shaped planetary nebula called the Cat’s Eye, with data from the Chandra X-ray Observatory and Hubble Space Telescope.  NASA’s Data sonification from Chandra, Hubble and/or Webb telecopes allows us to hear data of cosmic objects. Credit: NASA/CXO/SAO

Celebrate With Us!

Dedicated teams of engineers, designers, test technicians, and analysts at Marshall Space Flight Center in Huntsville, Alabama, are celebrating with partners at the Chandra X-ray Center and elsewhere outside and across the agency for the 25th anniversary of the Chandra X-ray Observatory. Their hard work keeps the spacecraft flying, enabling Chandra’s ongoing studies of black holes, supernovae, dark matter, and more.

Chandra will continue its mission to deepen our understanding of the origin and evolution of the cosmos, helping all of us explore the Universe.

The Chandra Xray Observatory, the longest cargo ever carried to space aboard the space shuttle, is shown in Columbia’s payload bay. This photo of the payload bay with its doors open was taken just before Chandra was tilted upward for release and deployed on July 23, 1999. Credit: NASA

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

[shawnxstyles]

Omg! Panty stealer pt2 is sooooo gooood! Cocky and dom Peter absolutely blew my mind! Your writing is awesome!

Pleeeeease tell me that it will be third part to fulfill the panty trilogy! As humble suggestion maybe reader find out that Pete is SpiderMan and he will finally get head from her while he is in his spidey costume? Or maybe more than just blowjob?Hehehe Am I very bad and naughty that I'm typing this to you? 🥵🤤

Anyways love ya darling! You're smashing it!

in the suit

words: 3k

warnings: smut; (m- receiving [oral], dirty talk), language, and fluff of course. barely edited.

note: panty!peter blurb #1 coming up :D also, this is the way i believe y/n would have found out about spider-man, but i have another request for the same thing so i’ll probably do an alternative version!

—

you couldn’t stop thinking about it. how?

how does peter manage to get into your room every night? okay, not every night, but most nights.

most nights, peter magically and mysteriously sneaks his way up into your forbidden bedroom with ease. sometimes, you even wait and watch outside your window to try to get a peak at what he’s doing. but you never see him.

he’s just so slick. how does he do it?

you and peter have been together for over a month now, if you’re counting the day he broke in. the feeling isn’t necessarily new in your heart. you feel like you’ve known him your whole life. like he’s always just… been there.

through this month of stability yet craziness, you haven’t gone back to the frat house since the halloween party. you thought that after you guys got together you would stay there more often, but peter doesn’t want you to be ‘attacked’ by the guys. meaning, he doesn’t want them to ask a million questions when you guys are supposed to be private. you thought his excuse was dumb, but he was also just being a bit protective.

in reality, peter just didn’t know how to get you into the frat house without anyone seeing you. you both had agreed that your relationship was going to be kept private, very private. people could spread rumors and assume you two were together, but you weren’t going to show each other off. you guys liked it this way, it made your relationship more special because it was just for you two.

peter had a sixth sense, sticky fingers, and webs. it was pretty easy for him to crawl up into your room especially because you didn’t have security cameras (maybe you guys should get some at some point though…). you would constantly ask him how he does it since you live on the second floor and it was high up. but peter responds by not responding and instead laughs and kisses you. god, he was too good at distracting you.

but tonight, you were determined to find out.

peter had already texted you earlier and said he wouldn’t be able to stop by tonight because of overbearing homework. you completely understood, and sent him a good luck and goodnight to me then message. but truly, you were sneaking out and heading towards the frat.

you put on your sneakers and a hoodie, pulling the strings tightly around your head. the early december weather was no joke in massachusetts, and your thermal leggings were barely helping to keep you warm. as quietly as possible, you leave through the back door, making sure not to alert anyone or anything. not like you have a system to alert though.

you cut through some of the hedges until you’re in the front yard and the frat is staring at you from across the street. taking a deep, chilly breath, you cross the road with your frozen fingers tucked in your pocket.

all the lights in the top rooms were off, except one. you’re not totally sure which one is peter’s, but what other frat guy would stay up until 11 p.m. working on homework?

maybe ned, but he sleeps downstairs.

you walk until you’re under the window, the yellowish light taunting you. there was no latter, vine, rope, or magic hair to get you into the bedroom. the houses were built very similarly, and you know he doesn’t bring a latter with him.

so how does he do it?

you take a glance at your surroundings. the biggest difference of your houses was that the guys’ didn’t have large garden hedges. they just had a shit ton of messy bushes that they should probably trim once in a while.

having no ideas, you try to jump towards the window. great, that’s totally going to help you. maybe you’ll get some super jump that can spring you up and inside.

you feel stupid. yeah, peter may be the smartest person on campus and going to mit on a full academic scholarship, but how does he sneak into your room? with geometry? you didn’t think so.

wait.

what if… he’s hiding something from you?

that would explain why he’s so weird about it. letting the impulsive decisions take you over, you throw a rock at his window. hopefully, you’ll get his attention and he’ll come down, so you can see how he does it. or he’ll just go through the front door… whatever he does, you need to ask him this question right now. or else you’ll never be able to sleep again.

when throwing the rock gets tedious and noisy, you quit. just as you’re about to drop to the ground in annoyance, you hear a distant whipping sound. you hold your breath as if the person whipping will hear you.

fuck. it wasn’t a good idea for you to go out at night.

suddenly feeling anxious and scared, you slowly creep towards the sorority house. you don’t get too far before you see a body flinging through the air. the whipping noise gets closer and closer to you with every web on the streetlights. what the…

there’s only one person that could possibly be doing the impossible.

spider-man.

but what was he doing in your little neighborhood? this was one of the safest places in the area, so he didn’t need to check up here. there were so many more places in massachusetts that needed saving. feeling beyond curious, your feet scatter to hide you behind one of the untrimmed bushes.

you watch through crowded leaves as spider-man swings through the neighborhood, getting towards you. it’s like he can sense you and he’s coming for you. your heart thumps wildly in your chest, nervous about seeing him. you’ve never seen him before, and at least not in person. he was popular on the newspaper and television screens, but never on the street. unless you lived within the city.

with one long and final thwip, spider-man flings himself towards the frat house.

what. the…

you place your hand over your mouth, just in case your breathing is too loud. you intensely watch as the spider crawls up the white wall and towards the only lit window in the whole house.

no. fucking. way.

before you could fully register what you were seeing, you felt the gasp leave your mouth. you slap both of your hands on your face to shut yourself up. you nearly fall back on your heels as spider-man halts his movements. he scans his surroundings before jumping down the wall entirely.

your eyes are wide and your hands of shaking. you’ve never felt your heart beat so unbelievably fast, but you’ve also never been more afraid. what does he do to people that find out? what is going to happen to your relationship?

the body of blue and red stocks closer to the bushes with careful steps. you try to scoot away, but your back hits the fence. the wood creaks, your actions not quiet enough. his footsteps pick up speed as they rush to the bushes with determination.

spider-man jumps over the plant with grace, hoping to see a wild animal of some sort. but when he sees his girl with the most shocked and terrified expression in the world, he immediately falls to his knees.

“y/n,” he calmly says, slowly inching to you. he doesn’t hesitate to comfort you as peter. you don’t move, you just listen. “it’s okay. i promise.”

now that he sensed you, peter could hear your heartbeat overbearingly in his ears. he could hear your muffled breaths under your palm, and he just wanted to soothe your fear.

“baby,” he wanted to cuddle your body until you stopped shaking. you weren’t crying, you were just in shock. peter takes a quick glance at his surroundings before yanking off his mask and kneeling, so you could see his face reflecting off the moonlight. “it’s just me.”

“i…” you whispered as your hands fell from your face. peter doesn’t hesitate to grab them gently with his gloved ones. “…knew it.”

“you knew i was spider-man?”

“well… for like five seconds,” you flusteredly laugh while trying to recover. you still haven’t gotten used to this. well it’s only been a minute. “i knew you were hiding something.”

“what are you doing out this late anyway?” he stares straight up at the moon as it shines vehemently over you both.

“uh… well,” you start, “i was kind of curious as to how you always snuck into my bedroom without a latter or something, so i went to see? i don’t really know what i was looking for.”

peter chuckles. “but you found your answer, yeah?”

“yeah, i did,” you smile with sweetness as peter helps you up from the grass floor.

—

“it’s different breaking into your room rather than mine,” you say as you sit on the edge of peter’s bed. you watch as he tosses his mask inside of a box labeled books. “so that’s what was in the box. not dirty magazines.”

“surprise?” peter laughs and you giggle at his shyness. his cheeks and nose were red from the cold, but also from the slight blush that crossed them. you made him feel all warm and tingly inside, and even a little gooey.

his hand reaches for the button on his chest. it deflates, instantly becoming huge around him.

“wait,” you stop him before he undresses himself. he looks towards you. “can i just… look at you for a moment? in the suit?”

a small smirk creeps up his face. peter clicks the button again and his suit encloses on his body, outlining his muscles perfectly. every ridge and curve of him was being shown off by the spandex. you felt a spark of lust fire inside of you at the sight.

“like me in my suit, baby?” he teased as he trudged over to you. you stood up from the bed to meet his buff chest. you nodded with a bite of your lip.

he nearly growls before attaching your lips. it’s barely been a day since he’s last kissed you, but that’s too long for him. his gloved hand grips your jaw to deepen the kiss while your hands explore his messy hair.

the heat between you was undeniable. you were getting worked up over peter in his suit, and that’s something you never thought was possible. because you didn’t think peter being spider-man was possible.

is there a spider-man kink?

you take your shirt off after breaking the kiss, but resume it in no time. as he pushes you onto the bed, you stop him, having a new idea in mind.

“peter,” you sigh, spandex body hovering over yours.

“you okay?”

“yeah, yes. i just…” you swallowed, “can i…”

you didn’t really get your question out. you just slithered your body off the bed until your knees were digging into his carpet. peter’s eyebrows shoot up as he stares down at your figure, submissive below him.

“fuck. you want to touch my cock?” peter was already growing hard at the idea of fucking you in his suit. he found it hot that you found his suit hot. everything seemed to be a turn on right now. but now you were on your fucking knees like an angel and damn near begging to touch him?

how could he say no?

“go ahead then, sweet girl,” peter allows, but you stay still.

“how do i take it off—?”

“right—”

he unzips a zipper that you swear wasn’t there before. you barely take him fully out before you’re drooling at the sight. he was big and thick, and you don’t think you’d ever get used to looking at and feeling him.

your thumb drags over his weepy tip and he winces at your freezing touch.

“sorry!” you exclaimed with a funky smile. he forcefully laughs while you spit warmth into your hand.

“it’s okay, baby.”

your delicate hand wraps around him as you shift up and down. he sighs into the air, eyes fluttering back. your other hand scratches his thighs lightly. then, you fondle his balls until he’s groaning above you.

“fuck, darling,” he moans as his rough hand rests on your head. with his grip on you, you feel inclined to put your mouth on him. you’re barely an inch away, so what are you waiting for?

your lips pucker as you kiss his veiny shaft. you see from the top of your eyes how his face floods with pleasure, and your ego rises.

“if you look at me like that again, i’m going to explode, baby,” peter husks with his fingers laced in your hair for support.

with a hummed chuckle, you finally place your mouth on him. you suck on his leaky tip as a deep groan elicits from him. his noises always give you a bunch of reassurance, so you hum against him in satisfaction.

“takin’ me so well,” peter forces himself to stay still and let you do all the work. although, his hips just want to break free and ram into the back of your throat until you lose your voice. for another time… “love when you’re on your knees for me.”

you vibrated a moan against his cock as you took him deeper, a little more than half way. you were never the best at giving head because you couldn’t go that far down without gagging atrociously, but after peter showed you a better technique, for breathing and comfort, he thought you were a professional.

“you like being on your knees for me? or for spider-man?”

a groggy moan rippled around his cock from your filled throat, confirming his suspicions. you were definitely turned of the idea of peter as spider-man, and because of that, he was too. every time you were horny, peter was too.

you released your hands from him and braced them on his thighs. you focused and remembered the small notes he’s given you before. you take a long breath before sinking his cock deep in the back of your mouth. your thumb stabs your palm to eliminate your gag reflex, and it works. your nose nudges the base of his cock and you can see up close how his abs contract tightly.

“fuck! doing so good for me. going to make me come, sweet girl.”

hearing this, you bob and twist your head with a goal. your tongue swirls exploring around each ridge like it’s never tasted the plain before. peter was delicious; he was sweet with a pinch of saltiness that made you a fan of giving head. you would get on your knees any day for him.

his cock twitches in your mouth, warning you that he’s coming. you feel his hips buck into you as he strongly yanks your hair. you groan as he lets himself go.

“where do you want it? on your face? chest? or are you going to swallow it like a good girl?”

even when his dick twitches again, you don’t make an effort to move. you lick the underside of him, which sends peter over the edge.

a string of hushed groans fall from his pink lips as his muscles clench. ropes of his orgasm spurts down your throat, and you swallow every drop like a champ. well, almost all. parts of his come drip from the corner of your lip as he slowly pulls out of you.

the second he exits you, your jaw is instantly sore and achy, but it was worth it. to see the flustered and breathless peter above you was worthless everytime. peter was nearly disoriented by how fucking incredible your mouth was. how you were.

he tucks himself back into his suit as you remain on the floor. he leans down and helps you up, your knees popping in the process.

“how was it this time?” you croaked, voice cracking horrendously. peter tries not to laugh as he wipes away the nearly dried sperm on your face. you open your mouth without a thought, and he sticks his thumb in your mouth for you to lick it clean.

“it was good. fucking amazing. impeccable. exceeded expectations. outstanding performance—”

“okay, okay i get it. you’re a nerd!” you brokenedly laugh as you shove his chest. you got a sudden wave of chills because you were starting to get a bit cold. your body was still running hot because you were still, well, turned on.

“nerds are awesome, okay? they know everything.”

“like what? impress me,” you challenge as you throw your leg on top of his lap and get yourself seated. he smirks, feeling his cock chuff up a bit already. you were beyond soaked in your panties, and you just couldn’t wait for peter to destroy you.

peter knows you didn’t actually want him to say anything nerdy, so he made it a bit sexual. as always.

“they know how to… kiss.”

“you’re probably the one nerd that knows how to kiss.”

“okay, fine. i know how to kiss,” his hand cups your face as it leans closer towards his. he places a soft, longing kiss on your swollen lips before pulling away way too fast for your liking. “i know how to touch you, i know how to rile you up. right? i’m doing it right now. and you’re probably soaking.”

a warmth wave floods through your body at his words.

“i know how to talk to you too. bet these dirty words are going straight to your little clit, huh?”

“peter,” you whimper. he was right. he was beyond right.

his hand trails down your bare stomach and hovers over your clothed cunt. he can feel the heavy heat radiating from you through your leggings, begging for more.

“i can feel you. i can smell you, too. a perk of being spider-man,” he smiles, “guess this nerd is pretty great.”

“peter!” you shook his shoulders in desperation, but he didn’t move. you had a love hate relationship with his teasing. he indeed got you riled up, to the max, until you were begging him to touch you. he just dragged it on and on and on. he loved hearing you beg for it.

“okay, okay, sweet girl,” peter chuckled as his fingers fumbled down the waistline of your leggings. they were thick, so you helped him get them down. “just want to hear you say how awesome nerds are first. how do you think i made these webs?”

“you’re the hottest, super-nerd i’ve ever met in my life. now can you please fuck me?” you begged as your cunt ached.

“aw thanks, baby,” all he did was laugh at your misery with a smirk. “all you had to do was say please.”

—

note: not my best work, but i hope you enjoyeddd. literally posting this at 1 am :D

taglist: @invisibletrolleyson-jeremy @lnmp89 @crybabyddl @pretty-npeach @marine-mayday @aerangi @justanotherpasserby-blog @tinafuentes @moniffazictress11 @eywaheardyou @alwaysclassyeagle @mrstealuregirl @bisexual-desi @sherlockstrangewolf @madsttx @graywrites20 @bradtomlovesya @princesspannnn @sageisswaggg @purplerose291 @girlbossnancy @lockwood-lover @marzipaanz

crossed out= not able to tag

[foone]

Billionaires are so worried about us tracking their private jets, as if this isn't just a minor way to shame them for how much fuel they're burning. They act like The Haters are out here with a bunch of surface-to-air missiles ready to shoot their Gulfstream G650, callsign N628TS, currently parked at Hamad International Airport, in Doha, Qatar, out of the sky.

Which is ridiculous. Do you know how hard it is to get or build surface to air missiles? They're not exactly sold on Amazon, and even a basic heat-seeker guidance system is difficult to build because the thermal cameras used are very restricted in their civilian versions.

Not to mention the fact that it's the kind of attack that only works once, before every billionaire is scared off using their private jets. So you've got to be sure it'll work. Meaning you need to do a lot of testing. Rockets are expensive and difficult to reuse, so that costs a ton of money. Who can afford to launch a bunch of prototype surface to air missiles against drone planes? Not me, that's for sure. And unless you're planning to fight a full in war with these things, anyone with enough money to develop one is probably gonna get more bang for their buck by just hiring some assassins. I don't know how much it costs to have one rich guy shot, but I bet it's way less than what developing a DIY heat-seeker would cost.

But yeah. The real "danger" to ElMu and his like is that people will mock them online because it's publicly known that after talking about "staying at the Twitter HQ until the organization is fixed", he flew off to London and then Qatar. Maybe he'll be back for Monday? Either way, that's a lot of jet fuel.

[thefrogman]

Hey there,

I'm interested in getting involved into a hobby level of natural photography. I was wondering what a good intermediate camera, and what top 3 lens (if any) you'd recommend. I love using my cellphone but some shots, like birds riding thermals or looking at a specific spot for a long time to get a good shot just isn't as easy with a phone. I intend to shop around and see if I can play with different things, but getting an entry level start point would be great.

Thanks!!

I'm going to assume you mean nature photography due to you mentioning birds. That does cover a lot of different things so it's hard to give you a great recommendation without more details. Your budget range and some more examples of what you'd like to photograph can help me help you a little better.

That said, I can give you an example of a general nature setup that I might suggest. I can't say if this exact system is a good fit for you without more information, but it can get you started in your research.

The big problem with nature is distance. A lot of the critters you may want to photograph are skittish and it is hard to get close enough to them and the big telephoto lenses can get quite expensive. There are superzooms that will technically work, but a lot of times their optical quality is not good enough to get artistic-quality shots. They would be more for documenting that you saw a thing rather than capturing a pretty shot of the thing. So if you see a zoom lens that goes from 100-600mm or 80-400mm... just anything with an extensive range... typically those are going to be low quality optics.

A trick to get a bit more range is to get a slightly smaller sensor. If you get an APS-C camera, it will essentially give you 1.5x additional zoom with every lens. But you sacrifice some dynamic range and low light ability. So dark scenes or scenes that are both very bright and very dark could be a challenge.

A very popular wildlife camera body is the Canon 7D mark II. It has a pretty advanced focusing system for a DSLR and can be found for a decent price on the used market.

You could get a 24-70mm f/4 lens for your general purpose photography. This can get wide angle shots for vistas and forests and also zoom in if you need to.

Perhaps a 100mm macro lens for taking pictures of bugs and flowers and mushrooms. But it is also slightly telephoto so you can capture some birds, larger mammals, and even take portraits of people too.

And then the Canon 400mm f/5.6 prime is a classic bird lens that is fairly telephoto, has good optics, and won't explode your budget.

And just because it is so dang inexpensive for what you get, the 50mm f/1.8 "Nifty Fifty" is always a good idea to get just so you have something that can work in very low light.

That would cover a pretty large swath of subject matter if you were to head into the wilderness to capture what you saw.

[c1qfxugcgy0]

Quirks and features of the James Webb Space Telescope

The James Webb Space Telescope (JWST) is a ten billion dollar space telescope that weighs 14,000 pounds, is the size of a bus, and took decades to construct. It's been in the news recently, you might have heard about it.

The development, launch and deployment of the JWST were fraught with unexpected setbacks, terror and frights, 344 "single-point failures", any one of which that, if they failed during deployment, could doom the entire spacecraft to uselessness, since it orbits far out beyond where any current manned spacecraft could even attempt a repair job.

The fact that it came online as smoothly as it did was something of a surprise to the people in charge. Given the miracle of it making it to space at all, the press coverage of JWST has focused on the positives. But a stroll through the JWST user documentation by a curious reader reveals much that is interesting, or interestingly broken. Such as..

Fun and games with infrared

Specifically, the JWST is an infrared telescope, designed to collect light that's redder than red. The two dedicated imaging instruments are the Near Infrared Camera (NIRCam) collecting light from 0.6 micrometers to 5.0 micrometers and the Mid-Infrared Instrument (MIRI) collecting light from 5.6 micrometers to 25.5 micrometers. (Though with significant light collected past 25.5 um by filter F2550W)

The wonderful thing about infrared astronomy is that everything emits blackbody radiation, and the hotter it is the more infrared it emits. The unfortunate thing about infrared astronomy is that everything emits blackbody radiation, including your telescope, and self-emission from your telescope can swamp the faint signal from astronomical sources. (Like building a camera out of glowsticks.)

The equilibrium temperature for an object in Earth orbit is about 300 Kelvin. (26C) Everything on the other side of the sunshield passively cools down to 40K, and MIRI is actively cooled by the cryocooler down to a chilly 6K (-267C, -449F) This extends MIRI's seeing range deeper into infrared.

But the mirror is still warm! At the far end, MIRI is significantly compromised by thermal self-emission: (Note log scale!)

This is more graphically illustrated by one of the MIRI commissioning images:

Check out that background glare!

(This is somewhat unfair: the calibration target here is a star, which emits comparatively little light in far-infrared. MIRI is really meant for nebulae and extra-galactic high-redshift objects)

("Why not actively cool the mirror?" Mechanical cryocoolers operate on the very limit of what heat engines are capable of. The MIRI cryocooler draws a fat 180 watts to move 78 milliwatts of heat. Previous infrared telescopes used a fixed amount of expendable coolant (liquid helium or solid hydrogen) to cool the entire instrument package... at the cost of a much smaller primary mirror and a telescope that flat out just stopped working when it ran out of coolant.)

There's something else you might notice about the above series of photographs...

Thanks a lot, Lord Rayleigh

John William Strutt, 3rd Baron Rayleigh was a typical early physicist in that he has a great big pile of "discoveries" by virtue of being the first person to 1) notice something and 2) actually write it down. One of them is the fundamental theorem for the angular resolution of an optical system, the Rayleigh criterion. It is dead simple:

Resolution is roughly equal to 1.22 times the wavelength of the light you're looking at, divided by the diameter of the aperture. Bigger the opening at the front of light bucket, the higher the resolution. Smaller the wavelength of light, the higher the resolution.

(Fun fact: the former Arecibo radio observatory, once the largest single telescope in the world with a 305 meter wide dish, had about the same angular resolution in radio waves as the human eye does in visible light.)

You can imagine the effect this has on an infrared telescope. And sure enough, in the user documentation for the two imaging sensors, it states a pixel scale of 0.031 arcseconds for 0.6 to 2.3 micrometers light wavelength, 0.063 arcsec/px for 2.4-5.0 µm, and a squishy 0.11 arcsec/px for 5.6-25.5 µm.

But this is just how many pixels are on the detector. The resolution gets much worse at long wavelengths, as you can see in the commissioning image, where the extra pixels oversample a progressively vaguer blob. The Rayleigh criterion holds that the 6.5 meter wide JWST primary mirror should manage 0.206 arcsec at 5.32 µm, falling to 0.42 arcsec at 10.85 µm, 0.747 arcsec at 19.29 µm, and an unfortunate 1.014 arcsec at 26.2 µm. One wonders why the designers went to heroic lengths to cool MIRI down to 7 kelvin, instead of using that cryocooler mass and power budget for more detector surface area.

Knowing this, you can spot how the JWST's press team works around the limitations of the telescope. Like how a "look at how good our infrared telescope" commissioning photo happens to use the 7.7 µm mode:

Or how if you browse the photos on the webbtelescope.org site, you will see lots of NIRcam output in the "oooh, ah, new desktop background" category, but not so much MIRI.

(Another amusing detail of MIRI is that bright objects leave afterimages ("latents") on the sensor, so once a week they warm the sensor up to a tropical 20 kelvin before cooling it down again, a "MIRI anneal". You can see when anneals are performed, as well as what the telescope is looking at right now, by viewing the public schedule.)

But this is Webb operating right up to its full specifications. How about something that's actually broken?

NIRSpec my beloved

The Near-Infrared Spectrograph (NIRSpec) instrument takes incoming light and runs it through a diffraction grating to produce a spectrum. When scientists say that the Sun is 0.77% oxygen, 0.29% carbon, etc, it's not because someone flew a spacecraft over to it and collected a bucket of solar plasma, it's because you can look at the absorption lines in the spectra to figure out its composition.

Spectrometry is also used to measure redshift, a close proxy to distance. When a press release says that a galaxy is "ten million lightyears away", it's not because NASA has a really long tape measure they haven't told anyone about, it's because a spectrometer measured how much cosmological redshift has moved a spectrum line. Naturally, it's not quite as easy as pointing a sensor at a object and getting back a single, unambiguous result. Distant objects are also dim objects, so the spectra will be noisy and chewed up by dust and other contamination its endured in the millions of years its traveled to arrive at our telescopes. Bleeding edge astronomy is thus the practice of designing statistical models to fit to noisy, fragmented data, and then arguing with other astronomers about r^2.

In any event, it's a handy thing to have on a telescope. Naturally, JWST has more than one. In fact every instrument has a spectroscopy mode. Besides the dedicated NIRISS and NIRSpec instruments, both NIRcam and MIRI include diffraction gratings in their filter wheels that smear out incoming light, like looking through a prism:

Pointing the JWST at an object is relatively expensive, since it requires rotating ("slewing") the entire darn spacecraft, and an amusingly complex alignment procedure with the fine guidance sensor and fine steering mirror. Considering how long it would take to shoot a hundred spectra with a conventional fixed slit rigidly mounted to the telescope frame, you can see the appeal of gathering a hundred spectra in a single exposure with "slitless" spectroscopy.

(Longtime space telescope nerds might hear the word "slewing" and involuntarily twitch, recalling that the reaction wheels and gyroscopes were a problem point on the Hubble, requiring several servicing missions, and also significantly affecting operations on the Kepler space telescope. Fortunately, JWST switched to a gyroscope type that has no moving parts, and used some mass budget to install six reaction wheels, up from Hubble's four, giving it three spares.)

You can also see the big downside in the image above, which is there's a hard tradeoff between how long a spectrum can be (and thus its resolution!) before it'll overlap its neighbors and be useless. Most of the slitless modes therefore have two gratings at two different angles, (GRISMR and GRISMC above) but wouldn't it great if you could just block out all that other light?

Thus, the Micro Shutter Array, as seen above. The best of both worlds! Capture many spectra at the same time, while blocking off light you don't want from contaminating the field, using a configurable array of nearly a quarter million microscopic, individually actuated moving shutters.

Lots and lots and lots of tiny little moving parts, installed in the guts of a spacecraft that's orbiting out past the Moon, impossible to access or replace.

Yeah, a bunch of them broke:

When it was handed over to NASA for installation into Webb in 2007, the MSA already had 150 shutters that no longer responded to opening commands in just one of the four submodules.

By the time JWST emerged from commissioning and was declared fully operational in 2022, 15,893 shutters, 7% of the total, had "failed closed." Hilariously, 904 of those failed during post-launch testing, and the authors of that paper note that, on average, if you tell 100 shutters to close, 4 of them will jam shut and no longer work.

This is unfortunate, but fairly easy to work around. What's worse are the shutters that are stuck open:

These permanently open shutters then compromise big chunks of the sensor. Commissioning testing jammed two more of them open, taking the total up to 22. You can imagine that if a few dozen more of these fail-open during routine operation then the entire microshutter array observation mode won't be much more useful than regular slitless spectrography.

And this, right here, sums up the essentially "interim" nature of JWST. After all, it was only supposed to cost $500 million and take a mere nine years from design to launch. All becomes clear in that light. Why give it a shutter array that falls apart in use? Why have the mirror exposed to space, where it gets hit with micrometeoroids? Why only design it to carry ten years worth of fuel? Because it was supposed to be half the price of Hubble!

The 90s was the era of "faster, better, cheaper". JWST was going to be an incremental improvement on a long series of previous infrared telescopes, and a stepping stone to the next one. It wasn't supposed to be an eternal monument to Science, and a financial black hole consuming NASA's entire budget.

So what went wrong?

We shouldn't have built one JWST.

Those 344 single points of failure. Any single one of them can end the mission. There's just one telescope, no backups, no trying again. Bureaucrats are harshly punished for failure, lightly rewarded for success. It's always easier to wait, do more tests, delay the schedule a bit more at a hint of trouble. Engineers can get you to 90% reliable no problem, but getting to 99% reliable takes another decade and nine billion more dollars.

Our techne is just bad at producing flawless machines first try. For the price of one reliable JWST we could have put twenty into orbit... but the first five would have been embarrassing failures. Spars sticking in place, sunshields jamming, thrusters misfiring. To save the shame of $0.5 billion wasted, NASA happily spent $9.5 billion. Why not? Because money spent is invisible, but failure is painfully apparent.

A critical third party can draw unflattering parallels. The crowning achievement of NASA, the Moon Landing... required eleven Apollo launches and twenty Surveyor launches before a single man set foot on lunar regolith! Quite a few of those spacecraft pancaked into the Moon and exploded on the launchpad before we figured out this "space" thing. Three men died! But NASA was on a hard deadline, with a fixed budget, and the only way to get a home run is to take a lot of swings at the ball.

Another comparison is the Space Launch System, NASA's attempt to make the Saturn V again. So far $27 billion has been lit on fire to put exactly one test load into orbit, with the primary contractor now desperate to get out of its contact. Slow, careful, incremental development has completely failed to produce a working launch system.

Meanwhile, SpaceX produced a series of public, embarrassing failures... resulting in the world's only reusable launch system, and as a result has put far more mass into orbit than any country in the world.

The only way to develop a flight system is flight tests.

Space telescope deploy mechanisms meant to work in zero gravity can't be tested on the ground.

They can only be tested in space.

NASA administrators who didn't work during Apollo are too stupid to understand this. Fire them all!

These geriatrics have happily sacrificed science in order to play it safe and secure their own easy retirement. Do we want 15 risky JWST telescopes by 2010, or do we want one reliable one by 2022? The answer is obvious!

For the money we wasted making Webb more reliable, we could have launched a space telescope far outside the disk of dust in the inner solar system, allowing it to see deeper into space than Webb ever could. ESA put an astrometry space telescope just outside Earth orbit, measuring angles between stellar objects, which is the only way to directly measure the distance to the stars. Great first step. The obvious next step is to send more of these telescopes out past Neptune's orbit, to capture better observations with a vastly larger baseline, something that can never be done by an Earthly observatory. Are there any plans to do this? No!

Space exploration is paralyzed by boomers, mired in the mental tarpit of the 1970s, where each gram to orbit is terribly expensive and must be counted on punched cards and summed with slide rules. Meanwhile, SpaceX Starship is on its way to orbit, and each one can carry sixteen JWSTs with room to spare!

The old paradigm is done. Telescopes don't need folding mirrors and exotic materials, they need to be mass produced. There is no excuse not to have a hundred more JWST-class telescopes lined up next to the Texas launch pad waiting for Starship to come online. But as far as I know not a single space mission even mentions it-- that's how afraid they are of risk!

The JWST, with its myriad of fragile components and its staggering price tag, stands as a monument not to our ingenuity but to our inability to let go of outdated ideals.

We must abandon the notion that space is a realm reserved for the flawless and the infallible. Instead, we should embrace the chaos, the unpredictability, the sheer messiness of exploration. Let us launch a thousand telescopes, each a patchwork of parts, each destined to fail in its own spectacular way. For it is only in this embrace of the ephemeral that we can find out what actually works!

Let the JWST be the last of its kind, a relic of a bygone era. The future is unwritten, and it is ours to fill with a symphony of failures, each note a step closer to the stars.

[lonestarflight]

Cancelled Missions: Gemini Saturn V

-Concept Art, however this has a typo, as this is clearly the Saturn V.

"American manned lunar orbiter. In l LP late 1964 McDonnell, in addition to a Saturn IB-boosted circumlunar Gemini, McDonnell proposed a lunar-orbit version of Gemini to comprehensively scout the Apollo landing zones prior to the first Apollo missions.

Status: Design 1964. Gross mass: 11,182 kg (24,652 lb).

The lunar orbit version required an Agena stage to provide the delta-V for lunar orbit insertion and trans earth injection. The 1.52 m-diameter Agena was enclosed in an inverted conical fairing to both transmit thrust loads to the Gemini and provide thermal protection during the coast to the moon.

Alternatively, a propulsion module based on a repackaged Apollo Service Module propulsion system, as had been proposed two years earlier for a lunar-landing version of Gemini, could be used. This raised the translunar injection mass of the spacecraft to 11,182 kg, well above the capability of a Saturn IB or Titan III-C, but only a quarter that of a Saturn V. The launch vehicle was unspecified, but could only have been a Saturn V used on an early test mission. The mission profile would have involved a 68 hour flight from low earth orbit to lunar orbit, a 24 hour lunar mapping mission in a 10 nm x 80 nm lunar orbit, and a 68 hour return flight. The scientific equipment would consist of a modest camera array installed in the nose of the spacecraft. This consisted of a long focal-length telescope, to which were attached two narrow-field stereo mapping cameras, a wide field mapping camera, a panoramic camera, and two 16 mm film cameras. The film was not accessible by the astronauts, being stored in a film vault shielded against radiation in the nose of the spacecraft. The camera compartment would protrude from the stub nose of the Gemini after parachute deployment.

The manned portion was the same as the circumlunar version, a modified earth-orbit Gemini. The aft modules would be retained, but with the retrorockets removed. The retro module space would be used to install Apollo-type lunar distance communications, navigation, and test equipment. Deployable DSIF omni-directional and parabolic antennae would deploy from the aft modules to support lunar-distance communications. To handle re-entry from lunar distances, several modifications were necessary. The capsule's heat shield would be beefed up, and the Rene 41 corrugated shingles of Gemini's skin would be replaced with ablative shingles. The load of attitude control propellant for the capsule's reaction control system was substantially increased. Additional strap-down gyros and solar sensor packages would be added to provide navigation system redundancy. The ejection seats would be deleted and a Mercury-style launch escape tower added. The then-planned Rogallo wing recovery system would be used to glide to the Gemini to a runway landing on US territory after return from the moon. To handle the scientific payload, a camera compartment was added to the nose below the parachute/Rogallo wing housing. The Gemini spacecraft modified in this way had on on-orbit mass of 3955 kg as compared to the 3207 kg of the earth-orbit version.

Crew Size: 2. Habitable Volume: 2.55 m3."

-information from Astronautix.com: link

source, source, source

[thetruearchmagos]

On Shields, Armour, And Vehicles With Both

Ever since making this post a while back, I haven't stopped thinking of how I might try to 'balance' shields and armour, and I've come up with two ideas. Here they are.

Tagging @oddcryptidwrites @theprissythumbelina @nerdexer @caxycreations @hessdalen-globe

@kckramer @vyuntspakhkite-l-darling

Author's Note; the following post is stupidly, incredibly long winded, and occasionally employs some language most sane people will never come across. I'm sorry.

What The Shield Is

The short answer here, is very expensive. That pretty much answers the question of why so few non-UC militaries used it until recently, which is neat, but the United Commonwealth famously doesn't give to shits about cost if it makes for better-enough-than-everyone-else's equipment.

The long answer, and the more relevant one, is that the actual equipment involved in shielding armoured vehicles is bulky and heavy, which means that as far as volume and weight goes the balance between armour and shielding is still in the latter's favour, but to a significantly lower degree than my first plans implied. 'Protective Field Projectors', to use the in-world terminology, are basically the size and profile of the sorts of cameras they use to make films;

But with stuff coming out of the 'lens' rather than coming in. Full, all-aspect protection will require several individual projectors, especially if you intend on layering them.

Bumping up the weight and volume constraints also applies to the auxiliary equipment that the projectors need to operate. In particular, I'm taking a page out of all good sci-fi and demanding the use of thermal energy regulation systems to shed the monumental amount of energy these shields output both to operate normally and especially when having to take hits in combat. These, plus some pretty beefy power generation requirements, and all the wiring needed to connect these sub-systems, will all put a pretty nasty penalty on including a truly top-shelf shield system on your vehicle.

A small note to end this section, but since I intend for technology to develop pretty quickly in the 20 or so years that the 'great wars' take place over, I absolutely expect for miniaturisation and optimisation to significantly improve the technology surrounding these 'field projectors'. All the same, there's a reason the competition between protection and weaponry is an 'arms race', and the constant ramping up of the anti-shield threat will mean even improved protection systems will struggle mightily to keep pace, and sheer mass of system will be important.

What The Shield Does

And yet, if shields were truly universally indomitable, all these significant restrictions would merely take shielded vehicles down a peg, not give good ol' heavy metal (or ceramic) a lease on life. This is where specifying the types of munition that shields operate best against might be helpful.

For a brief intro into the world of modern 'Anti-Tank', most weapons seeking to kill armoured vehicles rely on either kinetic energy or chemical energy penetrators. These are, respectively;

The former relies on concentrating a massive amount of kinetic energy into a single, hardened point in the form of that 'long rod', while the latter uses an explosive to deform a conical shape of metal into a fast moving, 'semi-liquid' jet.

The actual distinction as far as this armour-shields thing is concerned will be that shields will perform highly effectively against shaped charges. The most 'state of the art' ground vehicle mounted shield systems can effectively pre-detonate the warhead at a significant stand-off distance from the vehicle, and the resulting premature stream will have its penetrative capacity weakened by the resulting 'air gap' and be gradually broken up by successive layers of shields in that space between the point of detonation and the hull.

The real distinguishing point here is how shields work, which I'm going to explain as briefly as I can, and keeping Magic System talk to a minimum. The flat plane projected by a 'field projector' works sort of like a belt, coming out one side, being spread out and 'held' at points in the air in front of it, then coming back in.

This physical field is what the warhead impacts, but it's important to note that the field almost never actually tries to outright stop what's hitting it. At the speeds and amounts of energy modern weaponry produces, the sudden spike of energy shot through the projector mechanisms that stopping something dead would entail could very well 'flare out' that delicate machinery and render it useless, regardless of whether the incoming threat was stopped or not, and that's before factoring in the damage this would have on the shield's cooling system.

When it comes to shaped charges, the resistance required just to detonate the warhead a good distance away would hardly overpower even the earliest shields to enter actual service, and by layering shields and carefully tailoring their 'degree of resistance' you can sorta get the same effect that Explosive Reactive Armour and composite armour provides in breaking up the resulting jet.

Kinetic penetrators, however, can punch with such an overwhelming amount of energy that even successive layers of modern shielding can be overcome by the most top-shelf penetrators, failing in sequence to preserve the projector itself.

This is not helped by the presence of certain 'Magi-materials' in the 12 Worlds whose properties take those desired in penetrators (density, hardness, and strength) and dial them up to 11. In short, if someone really wants to punch through shields, they can, and they will, as long as they can put together a good enough APFSDS shot.

This, then, is where armour comes in.

The same fucky-wucky 'Magic-ifieid' materials science that makes things like the aforementioned long rod penetrator possible have led to quick some buggery in the world of modern armour, making it leagues better than the options available in real life. 'Face hardened crystal plate', for example, can withstand immense amounts of force without cracking, and is now widely used across the UC's frontline combat vehicles.

Now, time for caveats. Firstly, this is not to say that shields will have absolutely no effect on kinetic penetrators. Depending on the angle they impact at, the resistance the shield offers before failing might be enough to induce a 'tumble' in the penetrator's flight profile, which can undermine its penetrative performance once it hits the hull. That being the case, once it does hit the hull, let's just say you'll be wishing you had the armour between the long rod and yourself.

Secondly, the fact that I've buffed armour to hell and back raises the question of why, then, one would bother investing in shields at all. The short answer to this is that armour's weight and impact on internal volume poses limits on 'how much' of it you can have, and where on the vehicle it goes. The long answer, is below.

The One With The Other

We've settled how shields and armour each function individually, but in order to figure out what the actual state of protection looks like on the battlefield, we still have to consider what the threats out there actually look like. The answer is... complicated.

To make a reference to current-day threats to armoured vehicles, the short answer, as I see it, is this; on a modern battlefield, you are far, far more likely to encounter someone slinging shaped charges in your direction, than kinetic darts, be it in the form of shells, missiles, or even drones once those become a thing.

You see, here's something I didn't mention previously about the distinction between these two classes of ordnance; kinetic penetrators rely on impacting a target at speed, which requires them being shot out of a high velocity cannon and means that their performance is (to a degree) reduced with range. Shaped charges, on the other hand, could detonate standing still and inflict the exact same amount of damage - literally, in the case of the sorts of mines which use such warheads.

This property makes a shaped charge warhead much easier to deliver onto a target's forehead than a kinetic penetrator, increasing the variety of potential delivery mechanisms.

Since, then, shaped charges are the more prevalent threat of the two, it makes sense to invest quite heavily in a highly effective and cost efficient defence against them in the form of shields. Kinetic penetrators thus become a more specialised but still highly lethal threat, which creates a need for a capability which can perform its mission in the face of their presence - in short, a heavily armoured vehicle.

Handily for me, the prevalence of shields itself also requires that at least some effort be put into fielding the kinetic penetrators that're best suited to knocking them out.

So... How Do We Use It?

Of course, how, precisely, the two 'swords' on the one hand and the two 'shields' (heh) on the other interact in practice is contingent on a host of other factors, and these capabilities themselves are just small inputs into the much larger picture of military competition. Nonetheless, I shall at least try to answer this question specifically in the case of the United Commonwealth Army, which first introduced shields into the world of land warfare and has developed that technology to its greatest extent.

The whole force structure of the UCA's deployable field force is divided into categories according to the types and intensities of conflict each is expected to engage in. 'Light forces' include both the Airborne Corps and other rapidly mobile troops lacking in heavy equipment, and is designed for rapid intervention into emerging crises the Worlds over on a moment's notice. 'Armoured forces', on the other hand, is comprised of said heavy equipment in excess, slow to move but nigh unstoppable when it does, and serves to duke it out with similarly well armed belligerents in open battle.

The needs of these various 'classes' of troop thus inform the types of capability they need or are willing to part with, and for the purposes of this discussion 'protection' tends to be the first thing on the chopping block. For example, 'Skyjumpers' (name pending) patrolling an urban area in the midst of intense civil unrest are a lot less likely to be shot at by state of the art missiles or guns than an armoured battalion fighting another, and so Airborne troops were late to adopt the earliest, bulkiest models of shield projector, and even now employ only light shielding against obsolete systems and small arms. The amount of mass and volume dedicated to shields generally increases with the actual mass and size of the vehicles in question, though actual hard armour is typically excluded.

Now to turn to the subject that began this whole rant and the original post above, the actual 'heavily armoured', high intensity forces themselves. For reference to some terms I'll be using, here's a common graphic that defines the traits of most ground vehicles;

Let's start with some commonalities. Everything in this weight class is tracked, and working with a much higher 'base' / minimum weight and volume limit than the stuff above. The threats posed by an actual organised and equipped enemy army are much more vigorous than what insurgents can offer, and the UC's response to that is to place an absolute premium on protection across the vehicle fleet. Finally, considerations such as NBC protection, optics, and communications should be pretty much standard across all vehicles here.

We can now turn to the differences that set our vehicles apart, and it's here that we come across another simplified dichotomy to add to this list; you can either have a big weapon and lots of protection, or infantry and some protection, but not both.

The need to bring along infantry in a vehicle makes things challenging. "About eight passengers with baggage" comes out to a helluva lot of internal volume, which is what makes including a 'big gun' with its turret and ammunition highly impractical. The sheer size that this class of vehicles will grow to also limits the amount of protection that can be included to a greater extent that sheer tonnage might imply.

On the flip side, going with only crew members leaves significantly more room for whatever weapon system you have in mind as well as protection, though some trade offs will still be needed. As for what specific weapon we're using, the size and weight needed to operate a high velocity cannon needed to deal with shielded targets nicely coincides with the availability of both in this infantry-less vehicle - a missile armed vehicle is certainly possible, but the versatility of cannons outside of just shooting kinetic penetrators means they can deal with a wider variety of targets than highly specialised missiles which, in the UC, can be brought into battle by a variety of other vehicles. (And no, they don't try and launch missiles from guns, but that's a long topic for another time.)

Now that the relative physical characteristics of these two categories of vehicle are pretty well defined, we can now ask how these considerations shape the 'protection schemes' of either.

For the infantry transports, creatively called Armoured Infantry Transports (AITs) in the UCA, actual armour has been largely cut down in favour of doubling down on shields. This, again, ties into the much greater prevalence of shaped charge based threats to armoured vehicles, especially in the hands of enemy infantry that AITs can expect to get up close and personal with.

For the similarly creatively named Armoured Combat Vehicles (ACVs), or 'guntracks', these can afford to have both armour and shields, and in bulk. Armour is concentrated on the turret and in the front facing aspect of a guntrack, but while AIT shields cover all angles equally, guntracks especially concentrate their shields on the side and rear, which usually lack the special composite plates reserved for the front.

A Final Note On Shields

It should be kept in mind that everything in the post above should be taken to apply specifically and exclusively to ground vehicles and their shields. The actual 'protective field' technology was, in fact, equally pioneered by the UC Navy, and the sheer scale and mass that they have to work with has resulted in significantly realities for how shields can function, and different courses of action and adaptation.

[astronomia-nova]

The different Mars Rovers and what we learned

Sojourner (1997)

First rover to successfully land on Mars. Defined by NASA as a "micro-rover" due to its small size, Sojourner had a speed of maximum of 0.4 meters pr. minute. It was active for about 80 days on the surface of Mars.

Sojourner carried three cameras, an Atmospheric Structure Instrument (Meteorology Package) and an Alpha Proton X-ray Spectrometer. There instruments.

From Sojourner, NASA learned about the surface and weather conditions of Mars.

Sojourner found rounded rocks at the landing site, which suggests that running water could have been on Mars. The radio-tracking of Pathfinder (mission name) also gave an estimate of Mars' metal core's size (1300 kilometers to 2000 kilometers). It also discovered that the dust that is in the air on Mars is magnetic and possibly made up of mahemite. Sojourner also observed dust devils, ice clouds in the lower atmosphere and temperature fluctuations on the surface of Mars.

Spirit (2004-2010) and Opportunity (2004-2018)

Spirit was one of two Mars rovers launched in 2003 (mission started in 2004). The wheels on Spirit and Opportunity were about double the size of Sojourners. The weight of both rovers was about 17 times Sojourners, and more than double the size. Their goal on Mars was to search the surface for traces of past water. In 2009, Spirit got stuck in soil (in the area called Troy). In 2010, Spirit stopped communications, and the mission ended in 2011.

Opportunity was launched in 2004 along with Spirit but lasted much longer than their twin. Setting the record for the longest-lasting Mars rover, Opportunity stopped communications in 2018. Opportunity also set the record for the longest distance traveled by a rover, around 45 kilometers.

Like Sojourner, Spirit provided data about Mars' weather conditions, especially the wind. Both Spirit and Opportunity found evidence of possible conditions on Mars that could allow microbial life.

Spirit and Opportunity both had panoramic cameras, a thermal emission spectrometer, a Moessbauer spectrometer, an alpha particle X-ray spectrometer, and a microscopic imager.

Curiosity (2012-present)

Curiosity is currently the oldest active Mars rover (as of 21/07/2023) The main purpose of Curiosity is to figure out if Mars has the right environment for microbial lifeforms. Curiosity is currently exploring Gale Crater and had the most advanced instruments at the time. Curiosity has found evidence of water having been on Mars in the past, found old organic material, and discovered that Mars has had a thicker atmosphere in the past.

Curiosity can climb over knee-high obstacles and can go up to 30 meters per hour.

Curiosity carries a radioisotope power system to generate electricity, which gives the rover a steady electricity flow. Curiosity also carries 17 cameras, a laser, a drill, and 10 different instruments.

Perseverance (2021-present)

Perseverance is the newest Mars rover from NASA. The main goal for Perseverance is to research habitable conditions on Mars, but also for signs of past microbial life. The mission also tests possible options for future human expeditions on Mars (ex. improved landing techniques, producing oxygen from the atmosphere and environmental conditions).

The drill Perseverance used can collect samples and then set them aside for collection on the surface.

Zhurong (2021-2022)

Launched by the CNSA, Zhurong is the first Chinese Mars rover. In 2022 it became inactive due to sandstorms and the winter, which prevented it from waking at an appropriate temperature and good sunlight conditions.

Zhurong's mission was to study the topography, examine the surface (soil and elements), and take samples of the atmosphere. To do this it had a RoPeR (Mars Rover Penetrating Radar), RoMAG (Mars Rover Magnetometer), MCS (Mars Climate Station), MarSCoDE (Mars Surface Compound Detector), a multispectral camera and navigation and topography cameras. It also had a remote camera on board.

[usafphantom2]

SR-71 on Ramp with Flight Crew

Looking more like astronauts than aircraft pilots, members of a fully-suited NASA research flight crew is seen here alongside an SR-71 aircraft. Two SR-71A's were initially loaned to NASA from the Air Force for high-speed, high-altitude aeronautical research. The SR-71As plus an SR- 71B pilot trainer aircraft were based at NASA's Ames-Dryden Flight Research Facility (later, Dryden Flight Research Center), Edwards, California during the decade of the 1990s. Two SR-71 aircraft have been used by NASA as testbeds for high-speed and high-altitude aeronautical research. The aircraft, an SR-71A and an SR-71B pilot trainer aircraft, have been based here at NASA's Dryden Flight Research Center, Edwards, California. They were transferred to NASA after the U.S. Air Force program was cancelled. As research platforms, the aircraft can cruise at Mach 3 for more than one hour. For thermal experiments, this can produce heat soak temperatures of over 600 degrees Fahrenheit (F). This operating environment makes these aircraft excellent platforms to carry out research and experiments in a variety of areas -- aerodynamics, propulsion, structures, thermal protection materials, high-speed and high-temperature instrumentation, atmospheric studies, and sonic boom characterization. The SR-71 was used in a program to study ways of reducing sonic booms or over pressures that are heard on the ground, much like sharp thunderclaps, when an aircraft exceeds the speed of sound. Data from this Sonic Boom Mitigation Study could eventually lead to aircraft designs that would reduce the "peak" overpressures of sonic booms and minimize the startling affect they produce on the ground. One of the first major experiments to be flown in the NASA SR-71 program was a laser air data collection system. It used laser light instead of air pressure to produce airspeed and attitude reference data, such as angle of attack and sideslip, which are normally obtained with small tubes and vanes extending into the airstream. One of Dryden's SR-71s was used for the Linear Aerospike Rocket Engine, or LASRE Experiment. Another earlier project consisted of a series of flights using the SR-71 as a science camera platform for NASA's Jet Propulsion Laboratory in Pasadena, California. An upward-looking ultraviolet video camera placed in the SR-71's nosebay studied a variety of celestial objects in wavelengths that are blocked to ground-based astronomers. Earlier in its history, Dryden had a decade of past experience at sustained speeds above Mach 3. Two YF-12A aircraft and an SR-71 designated as a YF-12C were flown at the center between December 1969 and November 1979 in a joint NASA/USAF program to learn more about the capabilities and limitations of high-speed, high-altitude flight. The YF-12As were prototypes of a planned interceptor aircraft based on a design that later evolved into the SR-71 reconnaissance aircraft. Dave Lux was the NASA SR-71 project manger for much of the decade of the 1990s, followed by Steve Schmidt. Developed for the USAF as reconnaissance aircraft more than 30 years ago, SR-71s are still the world's fastest and highest-flying production aircraft. The aircraft can fly at speeds of more than 2,200 miles per hour (Mach 3+, or more than three times the speed of sound) and at altitudes of over 85,000 feet. The Lockheed Skunk Works (now Lockheed Martin) built the original SR-71 aircraft. Each aircraft is 107.4 feet long, has a wingspan of 55.6 feet, and is 18.5 feet high (from the ground to the top of the rudders, when parked). Gross takeoff weight is about 140,000 pounds, including a possible fuel weight of 80,280 pounds. The airframes are built almost entirely of titanium and titanium alloys to withstand heat generated by sustained Mach 3 flight. Aerodynamic control surfaces consist of all-moving vertical tail surfaces, ailerons on the outer wings, and elevators on the trailing edges between the engine exhaust nozzles. The two SR-71s at Dryden have been assigned the following NASA tail numbers: NASA 844 (A model), military serial 61-7980 and NASA 831 (B model)

@Habubrats71 via X

[nasa]

Student Experiments Soar!

Have you ever wondered what it takes to get a technology ready for space? The NASA TechRise Student Challenge gives middle and high school students a chance to do just that – team up with their classmates to design an original science or technology project and bring that idea to life as a payload on a suborbital vehicle.

Since March 2021, with the help of teachers and technical advisors, students across the country have dreamed up experiments with the potential to impact space exploration and collect data about our planet.

So far, more than 180 TechRise experiments have flown on suborbital vehicles that expose them to the conditions of space. Flight testing is a big step along the path of space technology development and scientific discovery.

The 2023-2024 TechRise Challenge flight tests took place this summer, with 60 student teams selected to fly their experiments on one of two commercial suborbital flight platforms: a high-altitude balloon operated by World View, or the Xodiac rocket-powered lander operated by Astrobotic. Xodiac flew over the company’s Lunar Surface Proving Ground — a test field designed to simulate the Moon’s surface — in Mojave, California, while World View’s high-altitude balloon launched out of Page, Arizona.

Here are four innovative TechRise experiments built by students and tested aboard NASA-supported flights this summer:

1. Oobleck Reaches the Skies

Oobleck, which gets its name from Dr. Seuss, is a mixture of cornstarch and water that behaves as both a liquid and a solid. Inspired by in-class science experiments, high school students at Colegio Otoqui in Bayomón, Puerto Rico, tested how Oobleck’s properties at 80,000 feet aboard a high-altitude balloon are different from those on Earth’s surface. Using sensors and the organic elements to create Oobleck, students aimed to collect data on the fluid under different conditions to determine if it could be used as a system for impact absorption.

2. Terrestrial Magnetic Field

Middle school students at Phillips Academy International Baccalaureate School in Birmingham, Alabama, tested the Earth’s magnetic field strength during the ascent, float, and descent of the high-altitude balloon. The team hypothesized the magnetic field strength decreases as the distance from Earth’s surface increases.

3. Rocket Lander Flame Experiment

To understand the impact of dust, rocks, and other materials kicked up by a rocket plume when landing on the Moon, middle school students at Cliff Valley School in Atlanta, Georgia, tested the vibrations of the Xodiac rocket-powered lander using CO2 and vibration sensors. The team also used infrared (thermal) and visual light cameras to attempt to detect the hazards produced by the rocket plume on the simulated lunar surface, which is important to ensure a safe landing.

4. Rocket Navigation

Middle and high school students at Tiospaye Topa School in LaPlant, South Dakota, developed an experiment to track motion data with the help of a GPS tracker and magnetic radar. Using data from the rocket-powered lander flight, the team will create a map of the flight path as well as the magnetic field of the terrain. The students plan to use their map to explore developing their own rocket navigation system.

The 2024-2025 TechRise Challenge is now accepting proposals for technology and science to be tested on a high-altitude balloon! Not only does TechRise offer hands-on experience in a live testing scenario, but it also provides an opportunity to learn about teamwork, project management, and other real-world skills.

“The TechRise Challenge was a truly remarkable journey for our team,” said Roshni Ismail, the team lead and educator at Cliff Valley School. “Watching them transform through the discovery of new skills, problem-solving together while being driven by the chance of flying their creation on a [rocket-powered lander] with NASA has been exhilarating. They challenged themselves to learn through trial and error and worked long hours to overcome every obstacle. We are very grateful for this opportunity.”

Are you ready to bring your experiment design to the launchpad? If you are a sixth to 12th grade student, you can make a team under the guidance of an educator and submit your experiment ideas by November 1. Get ready to create!

Make sure to follow us on Tumblr for your regular dose of space!

[walkingthroughthisworld]

Military Armed Forces The M1A2 Abrams Main battle tank. M1A2 (Baseline) : Production began in 1986 and entered service in 1992 (77 built for the US and more than 600 M1s upgraded to M1A2, 315 for Saudi Arabia, 218 for Kuwait). The M1A2 offers the tank commander an independent thermal sight and ability to, in rapid sequence, shoot at two targets without the need to acquire each one sequentially, also 2nd generation depleted uranium armor components. M1A2 SEP (System Enhancement Package) : Has upgraded third-generation depleted uranium armor components with graphite coating (240 new built, 300 M1A2s upgraded to M1A2 SEP for the USA, also unknown numbers of upgraded basic M1s and M1IPs, also 400 oldest M1A1s upgraded to M1A2 SEP) M1A2 SEPv2 : Added Common Remotely Operated Weapon Station as standard, color displays, improved interfaces, a new operating system, improved front and side armor with ERA (TUSK kit), tank-infantry phone as standard, and an upgraded transmission for better durability. M1A2C (SEPv3) : Has increased power generation and distribution, better communications and networking, new Vehicle Health Management System (VHMS) and Line Replaceable Modules (LRMs) for improved maintenance, an Ammunition DataLink (ADL) to use airburst rounds, improved counter-IED armor package, improved FLIR using long- and mid-wave infrared, a low-profile CROWS RWS, and an Auxiliary Power Unit (APU) under armor to run electronics while stationary instead of the engine, visually distinguishing the version by a small exhaust at the left rear. Prototypes began testing in 2015, and the first were delivered in October 2017. Fielding is expected to begin in 2020. M1A2D (SEPv4) : Under engineering development with delivery planned to start by 2020. The Commander’s Primary Sight, also known as the Commander’s Independent Thermal Viewer, and Gunner’s Primary Sight will be upgraded with 3rd Gen FLIR, an improved laser rangefinder and color cameras. Additional improvements will include advanced meteorological sensors, laser warning/detection receivers, directional smoke grenade launchers and integration of the new XM1147 multi-purpose (AMP) 120 mm tank round. The AN/VVR-4 laser warning receiver and ROSY rapid obscurant system have been trialed by the US Army for adoption on the Abrams tank and Bradley fighting vehicle.