Your comments improved the DIY grid-tie inverter
22:03
What's the deal with axial flux motors?
23:35
High voltage LED tester with VERY clever circuitry (and hidden features)
26:10
Thermochemical energy storage: an interesting way to store heat
21:17
SAVE Thousands - Build your own home solar battery backup!
25:50
Low Power Photoplethysmograpy (PPG) Heart-Rate Monitor Chip
22:19
Home made grid-tie inverter (not even all that sketchy)
20:54
INGENIOUS TOOLS YOU'LL WANT TO BUY
16:31