This lamp can hurt you in two ways
20:54
This USB bottle generates surface sanitiser from water and salt.
17:02
Crushing and hacking LED lamps
19:40
UVC 2023 - the fake and the real (with schematics)
20:21
Many Moving Magnets Melting Metal
16:05
Chinese automatic house ignitor. (also available in pink)
15:48
Inside a very clever LED headlight lamp.
11:45
Four Steps to Flawless Wire Joints (How to Solder)
9:27