How To Make DIY Telescope - Experiment At Home
23:04
I Built a $20 Telescope and Used it for Astrophotography
1:28:31
Telescope Building with John Dobson
19:42
Why is this Space Telescope so Tiny?
24:29
Make Your Own Optical Lenses
20:02
Truques inacreditáveis de faz-tudo que podem deixá-lo rico! Ele não está mostrando esses segredos
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How It's Made: Telescopes
17:00
How to Make a Telescope - 8 Inch Newtonian Reflector (Part 1)
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