How to (Almost) Make a Telescope from Scratch
16:04
Conquering Clear Glass
19:42
Why is this Space Telescope so Tiny?
6:19
The Basic Telescope Types- OPT
22:30
CAMERA LENS Made from Sand and Rocks
29:29
My DIY telescope vs $1million Observatory │Betty's Story Ep 2
17:00
How to Make a Telescope - 8 Inch Newtonian Reflector (Part 1)
17:53
The World’s First Precision Lathe - Constructing The Antikythera Mechanism -Experimental Archaeology
1:28:31