- #1
lotaru
- 1
- 0
Hi,
Can someone please explain how rotation of the wrist can spin the rotor of the powerball? How energy transform to the rotor?
Powerball toy -> http://www.powerballs.com/works.php?m=Works
video ->
Can someone please explain how rotation of the wrist can spin the rotor of the powerball? How energy transform to the rotor?
Powerball toy -> http://www.powerballs.com/works.php?m=Works
video ->
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