11:22

Even STRONGER Garden Laser?!? | Laser classes explained

9:03

Handheld DNA eraser?!?

13:38

Monster magnet meets servers...

10:21

SD Card vs. Radioactivity | Data Loss?

14:25

What element is attracted the most to a magnet?

10:02

Radioactive Mushrooms vs. Affordable Gamma Spectrometer | This beats ALL Geiger counters!

11:56

Crazy difference between 5W LASER and 5W LED!

19:21

DON'T buy a Geiger counter, until you see this... ☢️