Crazy visual trickery. Cool physics lesson too.

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Steel balls moving in synchronized circle

 

[jdubnyce]

More vids

 

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Scientific experiments you can do at home that seem like magic

 

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perpetual flying paper airplane

 

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L shaped water barrier never tips over

man i wanna make my own portable swimming pool with one!!

all you'd need is a stack of those and a couple tarpaulins.

 

[BuckFilly]

 

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[boogers]

Scientific experiments you can do at home that seem like magic

i think he meant 'capillary action' not 'absorption' but cool video regardless