What's inside an AED? (PWJ46)
31:33
Power supply for the 100 years old radio (PWJ241)
22:33
Implantable defibrillator teardown
8:03
Brilliant Idea | This Circuit Should be with Everyone
18:17
Stop Wasting Money on New Batteries! Restore Old AA Batteries Today!
15:10
Hacking an annoying flashlight into something useful (PWJ255)
8:51
How to Make a Real Diamond - (Not Clickbait)
50:19
The MOST Broken Computer? The 1986 Sinclair Spectrum+2
17:15