Best demonstration of momentum ever. [VIDEO]
Posted by gchappy from www.wimp.com
![Best demonstration of momentum ever. [VIDEO]](https://gentlemint-media.s3.amazonaws.com/images/2013/09/22/00c8feb1.jpg.757x975_q85.jpg)
Pin it! This is actually a demonstration of rotational precession, but momentum is a part of that.
This is actually a demonstration of rotational precession, but momentum is a part of that.
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