#Hardware and Technology

[digitalismmm]

Ribs

[nasa]

The Nancy Grace Roman Space Telescope’s flight harness is transferred from the mock-up structure to the spacecraft flight structure.

Your Body is Wired Like a NASA Space Telescope. Sort Of.

If our Nancy Grace Roman Space Telescope were alive, its nervous system would be the intricate wiring, or “harness,” that helps different parts of the observatory communicate with one another. Just like the human body sends information through nerves to function, Roman will send commands through this special harness to help achieve its mission: answering longstanding questions about dark energy, dark matter, and exoplanets, among other mind-bending cosmic queries. 

Roman’s harness weighs around 1,000 pounds and is made of about 32,000 wires and 900 connectors. If those parts were laid out end-to-end, they would be 45 miles long from start to finish. Coincidentally, the human body’s nerves would span the same distance if lined up. That’s far enough to reach nearly three-fourths of the way to space, twice as far as a marathon, or eight times taller than Mount Everest! 

An aerial view of the harness technicians working to secure Roman’s harness to the spacecraft flight structure.

Over a span of two years, 11 technicians spent time at the workbench and perched on ladders, cutting wire to length, carefully cleaning each component, and repeatedly connecting everything together.  

Space is usually freezing cold, but spacecraft that are in direct sunlight can get incredibly hot. Roman’s harness went through the Space Environment Simulator – a massive thermal vacuum chamber – to expose the components to the temperatures they’ll experience in space. Technicians “baked” vapors out of the harness to make sure they won’t cause problems later in orbit.  

Technicians work to secure Roman’s harness to the interior of the spacecraft flight structure. They are standing in the portion of the spacecraft bus where the propellant tanks will be mounted.  

The next step is for engineers to weave the harness through the flight structure in Goddard’s big clean room, a space almost perfectly free of dust and other particles. This process will be ongoing until most of the spacecraft components are assembled. The Roman Space Telescope is set to launch by May 2027. 

Learn more about the exciting science this mission will investigate on X and Facebook. 

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

[scipunk]

Serial Experiments Lain (1998)

Setting up the computer...

[zman80]

Computer Metropolis

[mechanicx]

[nando161mando]

[computer-nerd-girl]

[unbfacts]

Steve Jobs, Apple's co-founder, didn’t contribute to programming or hardware design. Steve Wozniak, the technical mind behind Apple’s early products, and other employees recognized Wozniak as the inventor and Jobs as the marketing strategist.

[adafruit]

🎄💾🗓️ Day 14: Retrocomputing Advent Calendar - Atari 400/800🎄💾🗓️

The Atari 8-bit computer line was launched in 1979 with the Atari 400 and Atari 800. Both were advanced for home computers at the time. Both were driven by a 1.79 MHz MOS Technology 6502 CPU, with ANTIC and CTIA/GTIA custom chips for advanced graphics and the POKEY chip handling sound and input/output duties. The Atari 800 was the premium model, featuring a full mechanical keyboard, user-expandable to 48 KB of memory, more metal shielding, and more durability. The Atari 400 was a lower-cost alternative with a membrane keyboard, limited to 16 KB of RAM, and a simplified construction.

With hardware-accelerated scrolling, Player/Missile graphics, and rich sound, the Atari 8-bit systems were known for gaming and creative applications. They were a versatile platform with cartridge-based software, cassette, and floppy disk storage. Atari's proprietary SIO (Serial Input/Output) port allowed daisy-chaining peripherals such as printers, modems, and disk drives, making connecting them easier than with other systems.

Newer models were more compact, combined memory expansion to as much as 128KB, and compatibility with developing software and peripherals improved. Atari's 8-bit computers are remembered for having groundbreaking hardware and a very colorful game library, and they are still being used by the retrocomputing community.

While doing research for this, I saw the XE Game System, never saw it before, very 80s for sure!

The Atari XEGS (XE Game System) was launched in 1987. A repackaged 65XE with a removable keyboard, it boots to the 1981 port of Missile Command instead of BASIC if the keyboard is disconnected.

Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!

[cravinganescape]

Rare 1970s neon green transparent rotary dial telephone !

[digitalismmm]

How to hide wires in your workplace

[nasa]

Our Roman Space Telescope’s Dish is Complete!

NASA engineers recently completed tests of the high-gain antenna for our Nancy Grace Roman Space Telescope. This observatory has some truly stellar plans once it launches by May 2027. Roman will help unravel the secrets of dark energy and dark matter – two invisible components that helped shape our universe and may determine its ultimate fate. The mission will also search for and image planets outside our solar system and explore all kinds of other cosmic topics.

However, it wouldn’t be able to send any of the data it will gather back to Earth without its antenna. Pictured above in a test chamber, this dish will provide the primary communication link between the Roman spacecraft and the ground. It will downlink the highest data volume of any NASA astrophysics mission so far.

The antenna reflector is made of a carbon composite material that weighs very little but will still withstand wide temperature fluctuations. It’s very hot and cold in space – Roman will experience a temperature range of minus 26 to 284 degrees Fahrenheit (minus 32 to 140 degrees Celsius)!

The dish spans 5.6 feet (1.7 meters) in diameter, standing about as tall as a refrigerator, yet only weighs 24 pounds (10.9 kilograms) – about as much as a dachshund. Its large size will help Roman send radio signals across a million miles of intervening space to Earth.

At one frequency, the dual-band antenna will receive commands and send back information about the spacecraft’s health and location. It will use another frequency to transmit a flood of data at up to 500 megabits per second to ground stations on Earth. The dish is designed to point extremely accurately at Earth, all while both Earth and the spacecraft are moving through space.

Engineers tested the antenna to make sure it will withstand the spacecraft’s launch and operate as expected in the extreme environment of space. The team also measured the antenna’s performance in a radio-frequency anechoic test chamber. Every surface in the test chamber is covered in pyramidal foam pieces that minimize interfering reflections during testing. Next, the team will attach the antenna to the articulating boom assembly, and then electrically integrate it with Roman’s Radio Frequency Communications System.

Learn more about the exciting science this mission will investigate on Twitter and Facebook.

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

[zadokthepriest]

via Kane

[zman80]

Data across the globe

[wojakgallery]

Title/Name: Wojak Blue Circuit Board Wojak Series: Feels Guy (Variant) Image / Art by: Unknown Main Tag: Circuit Board Wojak

[basic-retro-programming]

Source: MunyArist on Pinterest

Post #265: Advertisement by Airflow, When your computer room air conditioner fails, you may adapt. But what about your hardware?, 2023.