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BSR
(Member Profile)
siftbotYour video, Special James Webb Telescope Update,Images,Explained,, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
This achievement has earned you your "Pop Star" Level 117 Badge!
Liquid mirror telescope
GeeSussFreeKhttp://en.wikipedia.org/wiki/Liquid_mirror_telescopes
Check that crap out, ferrofluid mirror potential! What I wonder is are the optical properties of liquid metal any good. For instance, they are using gold in the James Webb telescope because it reflects nearly all infrared light. What would the optical quality of these metals be? Sometime tells me polished glass structures would be both higher resolution and use materials that are optimized to reflect the spectrum you are interested in. The Wiki seems to indicate the real advantage isn't in the optical quality, but the relative inexpensive in creation. Much like paying a hooker for 5 years of polishing your nob, polishing a mirror is costly.
Only when they were using it, not when they were spinning it by hand to show the waves in the mercury.
I'd have liked a shot of it with the motor running too.
Glossy NASA commercial for the James Webb telescope
braindonut says...Ditto that - I definitely could have done without the "sexy android lady" voice.
>> ^NicoleBee:
arrrrgh at the presentation, but ooooh at the new tech.