The 'WhipMagRotor' - slowmotion

Voice transcription (continued):
.. little magnet is going 4200 RPM. Okay.. well so 1288, that´s right or 2288, anyway I'll see if I can.. there's some interaction here between the fluorescent light and the speed of that magnet but anyway say, about 1700 RPM ok.. now I'm gonna stop these two magnets, I don't know if you can hear it or not but the assembly is speeding up. Woops, that's not a good reading.. I'll do it some more. Ok, so now we are over 4000 almost 5000 RPM on that small magnet"