One Of The Best Toys Ever

Hom To Build this great DIY toy

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There Is Some Interesting Science Behind This Toy

The buoyancy of the man in the bottle depends on the volume of air supporting him.

Change the volume by squeezing the bottle and if you have balanced him just right he will go up and down in the bottle.

It's a neat trick and a lot of enjoyable fun for the kids.

Watch the video to see how it is made.

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