How to Aluminize Telescope Mirrors
19:42
Why is this Space Telescope so Tiny?
24:29
Make Your Own Optical Lenses
14:37
Evaporating Metal in a High Vacuum to Coat Glass and PLA - PVD
30:43
Making a monolithic telescope Part 3: Figuring & Testing
17:04
How does a "first surface" mirror work? (2^15 sub special!)
21:31
How to Make a Pitch lap and Polish a telescope mirror!
6:21
Making the mirrors for the Giant Magellan Telescope at the University of Arizona
16:24