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  • halegd commented on seamster's instructable Tennis Balls in a Bottle (How-to!)1 year ago
    Tennis Balls in a Bottle (How-to!)

    I've seen a hard cooked, peeled egg get pulled inside a bottle that is more scientific than this. You get a bottle with a mouth just smaller than the egg. Drop a lit match inside the bottle then put the egg on top. When the match goes out, it has taken all the air out of the bottle, the lower pressure inside the bottle and the air pressure around the egg pushes the egg into the bottle.

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