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The Insane Engineering of James Webb Telescope

Real Engineering3 HN recommenders · 2021–2022
8.8M views · explainer · evergreen · Uploaded 2021-12-18

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.

Space exploration & spaceflightMechanical & precision engineering

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3 comments from Hacker News

@y4mi2021 · in “NASA Says Webb’s Excess Fuel Likely to Extend Its Lifetime Expectations”

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. [VIDEO]

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@5412022 · in “James Webb is fully deployed”

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] [VIDEO]

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@ResNet2022 · in “James Webb telescope's coldest instrument reaches operating temperature”

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] [VIDEO] (The Insane Engineering of James Webb Telescope)

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