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A paper popper is a
Party Popper
Popper, paper Popper, paper Toy instruments and noisemakers {{Toy-stub
A paper popper is a party
A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will often feature f ...
prank that is commonly used in schools. There are many variations of a paper popper, but they all involve a folded sheet of paper being gripped and right down. This causes air to be forced into the paper's holes, making the paper flaps pop out in the opposite direction, then making a loud popping noise. According to popular misconception, the sound is supposed to be caused by the paper breaking the sound barrier. In actuality, what 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 and some are quieter than others.
See also
*Paper plane
A paper plane (also known as a paper airplane in American English or paper aeroplane in British English) is a toy aircraft, usually a glider made out of single folded sheet of paper or paperboard. A simple nose-heavy paper plane, thrown like ...
External links
Party Popper
Popper, paper Popper, paper Toy instruments and noisemakers {{Toy-stub