What about secondary mirror?
To best reflect the infrared light that #Webb’s primary mirror collects an infinitesimal amount of gold was vacuum vapor deposited on each mirror segment. The total amount of gold used is about the mass of a golf ball! More: https://jwst.nasa.gov/mirrors.html#5 #JWST #PGAChampionshippic.twitter.com/CX10SWFMYX
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The secondary mirror is also gold coated. The thickness of the coating is the same as on the primary segments (thinner than a human hair).pic.twitter.com/ILlexpSPXY
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ok so it is not the gold
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Ça c'est de la technologie et sommes à 100%sur que les contribuables serait près d'investir des milliards euros pour la science et l'exploration spatial et d'éviter de donné des centaines de milliards de dollars pour les pays en guerre. Maintenant faut construire des vaisseaux?
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When is the launch?
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March 2021. Thanks for your question!
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~2.4 cc of gold. Never ceases to amaze me how thin you can spread that stuff.
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I am so looking forward to the success of this telescope unfurled! I can just imagine how nervous the Webb team is until it’s mission accomplished! All the steps that have to go perfectly is mind boggling. Good luck and great job in advance!
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Oh come on. For that much cheddar the thing should be completely made out of platinum. How much did it cost for that fact.?
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The telescope structure is actually made from carbon fiber composites. It is extremely light and engineered to be steady down to 32 nanometers (1/10,000 the diameter of a human hair) at temps colder than -400F. The mirrors are beryllium. (Very light yet very strong.)
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