INSIDE A LASER! An Open Cavity Helium-Neon Laser!
20:20
Little Junk Laser is a MEGAWATT Beast!
12:37
Der (Helium-Neon-) Laser (auf Schulniveau)
33:29
Can it be repaired? Dumpster Nitrogen Laser teardown Part 1
34:51
How to Grow BIG Crystals at Home FAST!!!
27:21
DIY Home made High Performance TEA Nitrogen Laser and Dye Laser!
9:56
Laser + mirror + sound
20:08
DIY Laser Image Projector (100ft+ Range!)
18:24