jh “no concept”
So it’s all scam, what a shame; nothing left as to play with aluminium and magnets. So the big one fell down with the same speed on both poles. The small one fells with different speed depending of flat bar angle, because the opposing magnetic field of Eddy current trying to press it to the bar or flip it over depending of polarity of pole facing the bar. With small magnet the strength of this field is big enough to flip it over, but with big one not enough.