Tom Stanton, maybe unintentionally, walks us through the entire industrial revolution’s worth of power generation technology in under 15 minutes as he demonstrates his desktop toy sized magnetically levitated flywheel. He then uses it to generate AC power for some LED’s and motors. Again, maybe unintentionally, he educates people on how power is generated today from turbines. The technology is the same whether it is a hand crank, steam from a nuclear reactor, or a spinning windmill.

Bonus points for the most clear explaination of a full bridge rectifier I have ever seen.