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Arecibo Observatory dish suffers serious damage (failed suspension cable)
Jim147:
Best way to prep for invasion.
Who had Alians on their 2020 bingo card?
French G.:
--- Quote from: Mike Irwin on August 13, 2020, 02:30:32 PM ---Trump, obviously.
--- End quote ---
Maybe Obama. I know his admin chopped funding for green bank telescope while sending National Science Foundation grant money to an observatory in South America.
Ben:
--- Quote from: Fly320s on August 13, 2020, 02:25:31 PM ---I bet it was.... Aliens.
--- End quote ---
Nope. Bond. James Bond.
https://youtu.be/6HFkF8904Uw
K Frame:
Friend of mine used to be the public information officer for NRAO. He was not amused with the funding drop to Green Bank.
Of course, since we were in college together he's gone from passively liberal to flaming communist, so he would have been unamused had Trump increased funding to Green Bank.
230RN:
Scott Manley's video was great, thanks Brad.
https://www.youtube.com/watch?v=4V3VCt24tkE
Very interesting that the main reflector is spherical so they can "look around," and the corrections to parabolic equivalency are made with secondary mirrors in the observation capsule. Sort of like compound lenses in camera lenses with spherical and chromatic etc aberration corrections. Wow on the math !
I still wonder how come a regular mirror reverses things left and right but not up and down. =D
I had to laugh a bit at 8:16. My only thought was "Big brother is watching you."
Terry, 230RN
Edited to add big grin just because.
Screen capture at the aforesaid 8:16, looking up at the observation capsule:
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