Fifty Year Old Equatorial Mount Reworked and Restored
18:19
Como REALMENTE configurar uma montagem de telescópio equatorial - somente iniciantes, por favor!
27:06
Making the World's Smallest Beam Stirling Engine
24:27
L2 Lagrange Point Calculated: JWST’s Home
7:04
Bolton has theory on why Trump threatened Russia with sanctions
1:18:18
Skywatcher HEQ5 Stripdown and Rebuild (OLD VERSION)
13:22
Should You Get an Old Telescope? Watch My Recent Experience!
32:37
How I Improved the Guiding Performance of My Harmonic Drive Mount
18:42