50-inch Telescope Installation
11:19
1-meter Telescope Installation
10:59
Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back
46:20
12.5" Dobsonian Telescope Build
59:20
Top 5 Huge Scale!Metal Melting Scrap & Recycling And Manufacturing Process & Mass Production Factory
20:02
14" Telescope view of Jupiter Venus Conjunction, The Moon, Planetary Nebulae and Galaxies
11:39
Basit aletlerle evinizde güçlü bir rüzgar türbini oluşturun! Yeni teknoloji rüzgar türbini!
9:50
Inside Grande Pines Observatory: Top-of-the-line amateur astronomy
21:18