large ‘very’ thin mirror making why you should use thick glass!
TRANSCRIPT
- Slide 1
- Large very thin mirror making Why you should use thick glass!
- Slide 2
- TRO Telescope 1998: 30 inch diameter 1 inch thick plate glass Edge ratio 30:1 Centre thickness ratio 60:1 !!! We were proud as punch.........and a lot younger.
- Slide 3