Magnets near your or even on the computer do nothing.
Yes. The magnet is stationary and the spinning drive plate is moving the data, the conductor, very rapidly relative to the magnet. (imho the real issue is the large metal box surrounding the drive plates. It's hard to feel a magnet from inside a metal house.)
In a server, the power supply is on the other end of the chasis. In a laptop, it's a lot closer to the internals.
> I don't buy that either.
Theory: https://en.wikipedia.org/wiki/Electromagnetic_induction
The forward model: https://www.youtube.com/watch?v=UL_ryxub-RA
The reverse model: https://www.youtube.com/watch?v=J9b0J29OzAU
The big ones: https://en.wikipedia.org/wiki/List_of_conventional_hydroelec... Note: the Three Gorges: 22 GW
For comparison, nuclear power: https://www.nei.org/Knowledge-Center/Nuclear-Statistics/US-N... Largest U.S. nuclear plant: Palo Verde (Arizona) produces around 4 GW.
For home applications: http://www.ebay.com/bhp/hydro-electric
