Somebody might have already posted this without me knowing, but here’s an awesome video!
Sorry if I posted it wrong I just copy and pasted the url. 
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I hadn’t seen that. That was some kind of excellent. 
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I had seen this video before but it was great getting the chance to see it again. One of the things I enjoy most about this video is not that he does amazing tricks, because let’s face it, he doesn’t. It’s not that he gives such a great lecture on the physics of the yo-yo. He touches on that but doesn’t really go into much depth. The best part of this video for me is that Don is a big time astronaut in outer space but still, he really LOVES his yo-yo.
This ain’t no child’s toy any longer, brilliant scientists in space enjoy them too!
One thing we learn here is that you have to have a hubstacked yo-yo if you want to play in zero gravity.
Thanx