FRESNEL LENS MYTHS about solar projects and misconceptions
7:34
Fresnel Lens Solar Power Foundry Obsidian Farm 3800 ˚ F 2100˚ C Fresnel Optics greenpowerscience
8:55
Is Spherical Solar Really The Future of Energy?
18:35
The Fresnel Lens: the Invention That Saved 1000 Ships
6:54
1941 A DIY Fresnel Lens From Tube
17:47
Giant Resin Magnifying Lens?!
8:32
Burning stuff with a giant fresnel lens + how a DLP projector works
9:24
Why Don't We All Use Solar Water Heaters?
15:13