Hey! Curious question: How do they know just how imperfect to make them so they are accurate up in space?
#ICYMI, @NASAWebb mirrors are beautiful feats of engineering. Fun fact: they were polished at room temperature with slight imperfections, so they achieve their perfect shape when they cool to their operating temperature in space. Find out more: https://go.nasa.gov/2mRyJBf #JWSTpic.twitter.com/tJtWilzkW2
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Researching the behavior of the materials at different temperatures, like how much it shrinks/expands or flexes. Then by knowing the difference it’s taken into account
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Thanks. Now thats something i can use going forward. Next time i do something imperfect, I'm just going to say i did it on purpose for another environment that we currently are not in. Haha
Thanks. Twitter will use this to make your timeline better. UndoUndo
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