Please can they come & do my windows?
If you think the sweepers in #Olympic #curling have a tough time “polishing” the ice, try polishing a beryllium mirror! Engineers polished #Webb’s mirrors to accuracies of ~1 millionth of an inch. (Not by using a broom, of course!) #winterolympics #JWST #pyeongchang2018pic.twitter.com/3Cr98kKYaU
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How accurrate is that in bananas?
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Nicee what’s the grit on that polishing stone?
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And this began centuries ago by using hand tools and crude means. Imagine the first lathe, even the first wheel. This image suggests so much human endeavors through cooperative science and headsweat just to get there. Beautiful image. Upcoming results must praise all generations.
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We have come far by standing on the shoulders of our ancestors. And if we fall, we can never pull ourselves back up: the easily-reachable metals and energy sources are gone, we couldn't bootstrap another bronze age and iron age from scratch.
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They should come clean my house haha jk it's a nightmare
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