Don't use strong lasers without this - easy to make!
11:27
Bad Beams? | How divergent are lasers?
10:36
PRO vs. DIY | Is my laser beam dump any good?
4:27
লজিক বোর্ডে একটি এলসিডি সংযোগকারী কীভাবে প্রতিস্থাপন করবেন
12:24
Power of Plasma Balls Visualized | Don't wear a ring... Jumping won't help!
8:12
No tire sus discos duros viejos, conviértalos en un motor de dron
11:56
Crazy difference between 5W LASER and 5W LED!
12:42
BURN IT! | Ferrofluid vs. Ferripaste
11:36