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Popping a balloon full of air underwater (Original Post) yuiyoshida May 2017 OP
Looked like an upside down nuclear explosion dhill926 May 2017 #1
It was upside down. Thor_MN May 2017 #4
A micro-burst! Cool. nt Laffy Kat May 2017 #2
Sounds like an assignment for Mythbusters. no_hypocrisy May 2017 #3
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