Don't use a green laser in the cold!
11:27
Bad Beams? | How divergent are lasers?
18:43
Testing dangerous DIY "medical" lasers from eBay
11:56
Crazy difference between 5W LASER and 5W LED!
14:22
Strongest LASERs in my collection | Power and wavelength measured
9:51
Erkekler İçin Alınmaya Değer 21 Havalı Alet
16:37
I made a Copper Ice Press that Turns Ice into SPHERES - Lets try DRY ICE!
14:41
LASER Headlamp for Cars?!? How strong is its laser? | Find out how it works and how to power it up
20:38