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Paper popper

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This is an old revision of this page, as edited by 191.106.198.216 (talk) at 16:47, 12 September 2020 (→Paper popper: Public schools, however true as a statement, is definitely exclusionary and a somewhat lame clarification that ignores the Nature of Office appliance Made toys). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

A paper popper is a party prank that is commonly practiced in schools. There are many variations of a paper popper, but they all involve a folded sheet of paper being gripped and thrust down. This causes air to be forced into the paper's folded flaps, making the paper flaps pop out in the opposite direction at a high velocity, thus making a loud popping noise. According to popular misconception, the sound is supposed to be caused by the paper breaking the sound barrier. What actually happens is that air rushes in a blast wave to fill the vacuum created in the pocket that opens. The sound is described as the crack of a whip, which is an example of breaking the sound barrier, although the causes are different. Most papers work for poppers, although some are louder than others.

See also

Variations of Poppers
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