The Insane Engineering of James Webb Telescope on HackerTube: recommended by 3 Hacker News commenters across 3 separate months, 2021–2022.
explainer · evergreen
Real Engineering explains the engineering behind the James Webb Space Telescope, including its folding mirror, sunshield, orbit and cooling systems, and why deployment was so difficult.
HN recommends it as an accessible in-depth explanation of how Webb works and why its deployment was remarkable.
“For some context around what makes this deployment so remarkable, watch this[0] video”
3 Hacker News comments link this video. Each one links back to its thread.
The fact that the telescope's cryocooler is acoustically symmetrical such that any vibrations made by each cylinder, and the actual flow of gas, is near-perfectly cancelled out is nothing short of amazing. [0] Real Engineering made a video that covered this and more, which is well worth a watch. [1] [0] [link] [1] ▶ this video (The Insane Engineering of James Webb Telescope)
in “James Webb telescope's coldest instrument reaches operating temperature” · View on HN
For some context around what makes this deployment so remarkable, watch this[0] video that talks about the engineering/building aspects of the James Webb [0] ▶ this video
in “James Webb is fully deployed” · View on HN
If you're interested in a more indepth view of how it's supposed to work, Real Engineering did a video about it recently. No idea if what they're saying is true however, I've no knowledge about the domain. ▶ this video
in “NASA Says Webb’s Excess Fuel Likely to Extend Its Lifetime Expectations” · View on HN