#science YouTube

[sadiests]

so im on youtube and this MOTHERFUCKER posts this and i have never enjoyed an image so much in my lifetime

bobbybroccoli makes video essays on science and tech and it scratches my brain and this is the best and i have gone on many many info-dumps from these (and actually used one in a fic im writing) so yeah go watch this shit its fun and educational

american supercolider, the fake element, and nortel are my faves

[athenaevm]

unpopular take: the hacksmith is not a science channel

it is a workshop/art channel, but it teaches very little actual science, and has actually perpetuated pseudoscience in the past such as the uberman sleep cycle a few years ago and some stuff about body types that is complete bs. also it is kind of a lot of wealth flaunting.

[ecrivainsolitaire]

Someone get Thought Emporium on this shit

[professorcalculusstanaccount]

as newspapers today dont tend to hire children, a modern day Tintin would run a clickbait YouTube channel, except the clickbait is 100% real every single time

he starts off as an irritating conservative pundit at 14, meets Chang then leaves the think tank paying him and launches his own independent channel and blows up shortly after. Chang helps with video editing and managing his socials and they often chat on video calls between adventures. Haddock, his foster dad, has absolutely no knowledge of his earlier videos.

[panpiepid]

Was watching a video about conservation of momentum AND THE GUY WHIPS OUT A GUN AND SHOOTS IT?????

HELP??????

[pelorsdyke]

big day for people who have exactly my kind of brain rot

[nasa]

What We Learned from Flying a Helicopter on Mars

The Ingenuity Mars Helicopter made history – not only as the first aircraft to perform powered, controlled flight on another world – but also for exceeding expectations, pushing the limits, and setting the stage for future NASA aerial exploration of other worlds.

Built as a technology demonstration designed to perform up to five experimental test flights over 30 days, Ingenuity performed flight operations from the Martian surface for almost three years. The helicopter ended its mission on Jan. 25, 2024, after sustaining damage to its rotor blades during its 72nd flight.

So, what did we learn from this small but mighty helicopter?

We can fly rotorcraft in the thin atmosphere of other planets.

Ingenuity proved that powered, controlled flight is possible on other worlds when it took to the Martian skies for the first time on April 19, 2021.

Flying on planets like Mars is no easy feat: The Red Planet has a significantly lower gravity – one-third that of Earth’s – and an extremely thin atmosphere, with only 1% the pressure at the surface compared to our planet. This means there are relatively few air molecules with which Ingenuity’s two 4-foot-wide (1.2-meter-wide) rotor blades can interact to achieve flight.

Ingenuity performed several flights dedicated to understanding key aerodynamic effects and how they interact with the structure and control system of the helicopter, providing us with a treasure-trove of data on how aircraft fly in the Martian atmosphere.

Now, we can use this knowledge to directly improve performance and reduce risk on future planetary aerial vehicles.

Creative solutions and “ingenuity” kept the helicopter flying longer than expected.

Over an extended mission that lasted for almost 1,000 Martian days (more than 33 times longer than originally planned), Ingenuity was upgraded with the ability to autonomously choose landing sites in treacherous terrain, dealt with a dead sensor, dusted itself off after dust storms, operated from 48 different airfields, performed three emergency landings, and survived a frigid Martian winter.

Fun fact: To keep costs low, the helicopter contained many off-the-shelf-commercial parts from the smartphone industry - parts that had never been tested in deep space. Those parts also surpassed expectations, proving durable throughout Ingenuity’s extended mission, and can inform future budget-conscious hardware solutions.

There is value in adding an aerial dimension to interplanetary surface missions.

Ingenuity traveled to Mars on the belly of the Perseverance rover, which served as the communications relay for Ingenuity and, therefore, was its constant companion. The helicopter also proved itself a helpful scout to the rover.

After its initial five flights in 2021, Ingenuity transitioned to an “operations demonstration,” serving as Perseverance’s eyes in the sky as it scouted science targets, potential rover routes, and inaccessible features, while also capturing stereo images for digital elevation maps.

Airborne assets like Ingenuity unlock a new dimension of exploration on Mars that we did not yet have – providing more pixels per meter of resolution for imaging than an orbiter and exploring locations a rover cannot reach.

Tech demos can pay off big time.

Ingenuity was flown as a technology demonstration payload on the Mars 2020 mission, and was a high risk, high reward, low-cost endeavor that paid off big. The data collected by the helicopter will be analyzed for years to come and will benefit future Mars and other planetary missions.

Just as the Sojourner rover led to the MER-class (Spirit and Opportunity) rovers, and the MSL-class (Curiosity and Perseverance) rovers, the team believes Ingenuity’s success will lead to future fleets of aircraft at Mars.

In general, NASA’s Technology Demonstration Missions test and advance new technologies, and then transition those capabilities to NASA missions, industry, and other government agencies. Chosen technologies are thoroughly ground- and flight-tested in relevant operating environments — reducing risks to future flight missions, gaining operational heritage and continuing NASA’s long history as a technological leader.

You can fall in love with robots on another planet.

Following in the tracks of beloved Martian rovers, the Ingenuity Mars Helicopter built up a worldwide fanbase. The Ingenuity team and public awaited every single flight with anticipation, awe, humor, and hope.

Check out #ThanksIngenuity on social media to see what’s been said about the helicopter’s accomplishments.

Learn more about Ingenuity’s accomplishments here. And make sure to follow us on Tumblr for your regular dose of space!

[mbari-blog]

Wake up, babe. New MBARI species just dropped. 🤩 

MBARI researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Bathydevius caudactylus swims through the ocean’s midnight zone and lights up with brilliant bioluminescence.

With a voluminous hooded structure at one end, a flat tail fringed with numerous finger-like projections at the other, and colorful internal organs in between, the team initially struggled to place this animal in a group. Because the animal also had a foot like a snail, they nicknamed this the “mystery mollusc.”

The team first observed the mystery mollusc in February 2000 during a dive with the institute’s remotely operated vehicle (ROV) Tiburon offshore of Monterey Bay at 2,614 meters (8,576 feet) deep.

They leveraged MBARI’s advanced and innovative underwater technology to gather extensive natural history information about the mystery mollusc. After reviewing more than 150 sightings from MBARI’s ROVs over the past 20 years, they published a detailed description of this animal.

Learn more more about this dazzling new denizen of the deep on our website.

[kilgarraara]

I made an animatic!!

This is an homage to Human Resources Violation fanfic by the amazing @kogo-dogo!!

This story has me hyperfixating again, so I wanted to put some of my love into this, I really hope you enjoy it!! :D

[achromic-red-dreams-doze-angrily]

So apparently on December 11th NASA tested using lasers to send information from space to Earth and this was the video they used:

The first video to be sent from space to Earth via laser is of an orange tabby cat chasing a laser pointer. His name? Taters.

More information:

[heart-sprout]

FARAWAY - Indie Webseries - Season 2 Out Now A sci-fi journey through identity, loss, hope and determination Find it on YouTube

Support the Patreon

Please reblog to support a broke indie artist ;u;

[humansbgone]

PREVIOUS EPISODE: https://www.youtube.com/watch?v=6Uh3NB-uqwY

Episode nine is UP!!! Thanks again to everyone for all your support!!! After this, we're in the double digits!

As before the soundtrack is composed by @theelectricdreamsofddx, with Gregorsa’s theme by @zestychille!

If you’d like to support what comes next, there’s a Patreon! All patrons get to see videos early. Additionally, $1 gets you a link to the Discord, $2 gets access to early updates and some bonus content, $5 for your name in credits and more bonus content, $20 and $40 for black-and-white and colored commissions of insect or arachnid characters respectively, and $100 if you want a fully rigged, animatable model of your own!

(46 points possible this time. How many did you get?)

[86bignaturals]

The entire safety third crew (William Osman, backyard scientist, Allen Pan) firmly fit in the villain pile

Just saw a post on Instagram about how it's a good thing most YouTubers that are popular aren't villains and that gave me ideas so here's what I've got

Hero group:

Milo Rossi - debunker and government hater,

Pirate software - military hacker and group leader,

Brian David Gilbert - collector of knowledge and spell caster/vampire

Main antagonistic villain group:

Name: the Paradox Association

PBS space time - violates physical laws,

stand up maths - violates mathematical laws,

Veritasium - spell caster and leader of the group,

3b1b - actually a sentient computer program,

Vsauce - joker of the group,

Hank green - lex Luthor of the group

Villains of the week:

Usually summoned by the Paradox association

McNally - rouge thief marksman,

Nilered - mad chemist,

Rainbolt - assassin who stalks social medias,

Jerma - riddler or some form of lizard person,

Combo class - mathematically perfect arsonist,

Alan becker - has electrokinesis and stick figure minions,

Wintergatan - musical mad man and inventor of clockwork beings,

Action lab - bombs,

Honorable mentions for people I was too tired to come up with powers for but would be villains:

Sabine hossenfelder,

Douglas Douglas,

Numberphile,

Probably some of those Minecraft YouTubers but I don't watch any

Tally hall

[typhlonectes]

These Salamanders Steal Genes and Can Have up to Five Extra Sets of Chromosomes

Unisexual salamanders in the genus Ambystoma  appear to be the only creatures in the world that reproduce the way they do. Researchers know how, but the why is still being figured out.

Katy Greenwald: These are all pond breeding salamanders. They are really abundant in the Great Lakes. They are gene thieves. They're stealing DNA from other species. It is known as kleptogenesis. They are usually just called the unisexual complex or the unisexual Ambystoma. They are not a species, actually, because they break all the rules of what a species should be able to do. They are a really unique lineage. As far as we know there is nothing else in the world that reproduces in this way. They are five or six million year old group of animals. As a biologist, you learn all these rules and intro bio and then you learn about these things that just break the rules. In the water, the males will produce sperm at offers, which are little sperm packets that they sort of put down on on leaves and sticks and things like that in the pond. And the females will pick those up internally in their cloaca and there's internal fertilization, and then they'll lay fertilized eggs, which will develop into larvae just like tadpoles do in frogs. And these unisex rules will be in the same ponds at the same time as these normal sexually reproducing species. And they will actually pick up the sperm at offers that are produced by the males of the other species that just triggers egg development. So their eggs are laid and they develop, but they don't actually include any of the males genetic material and they produce offspring that just have the same DNA as the mom. But a smaller proportion of the time they actually do add the males genomes, and so then the offspring come out with extra chromosomes. So they can have anywhere from two to five full sets of chromosomes from up to five different species. And these salamanders seem to have the benefits of asexuality in that they're all female. Their populations can grow really fast, but they have this mechanism to add additional genetic variation that they're able to grab from these species that they coexist with. If there's one thing that we learn from studying biodiversity, it's that there is amazing variation in nature. There are all kinds of species reproducing in all kinds of ways, using all kinds of different approaches. And I think that's something we could certainly learn from in human society, that valuing and celebrating that diversity is a great part of being a biologist...

via: https://www.scientificamerican.com/video/these-salamanders-steal-genes-and-can-have-up-to-five-extra-sets-of-chromosomes

[herpsandbirds]

Fish size themselves up in a mirror to decide if they can win a fight

Cleaner wrasse use their reflection to build a mental image of their body size, which they use to compare themselves to rivals before picking a fight

Before deciding whether or not to fight another fish, cleaner wrasse check their own reflection in a mirror and size themselves up. Bluestreak Cleaner Wrasse (Labroides dimidiatus) are remarkably bright. These finger-sized coral reef fish were the first fish to pass the mirror test, a common assessment to see whether an animal recognises that the reflection is of its own body and not another animal. Researchers have now found that these wrasses use their likeness to construct a mental image of their body size, which they can compare to others...

Read more: https://www.newscientist.com/article/2447414-fish-size-themselves-up-in-a-mirror-to-decide-if-they-can-win-a-fight

[alphynix]

It's been a while, but let's catch up with some more work I've done for PBS Eons:

• The enigmatic Paleodictyon, from "Something Has Been Making This Mark For 500 Million Years"

• The archaic ungulates Loxolophus, Arctocyon, and Eoconodon, from "How a Mass Extinction Changed Our Brains"

• And the nautilid Aturia, from "When Nautiloids Met Their Match"

———

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