CAMERA LENS Made from Sand and Rocks
15:31
I Fixed My Most Challenging Project! (Camera Lens from Scratch)
19:35
Smelting Iron from ROCKS (Primitive Iron Age Extraction)
21:29
What if you just keep zooming in?
19:42
Why is this Space Telescope so Tiny?
16:04
Conquering Clear Glass
30:33
Origins of Precision
17:21
#755 Why is a Camera Lens so Complicated?
17:12