Gadget Freak John Tindall uses his cannon to demonstrate the noise level of a sonic boom. In this clip from a History Channel UFO Hunters episode, Tindall uses his cannon to replicate a sonic boom. On the third try, the massive sound actually blows the cannon apart.
In our third annual contest, Design News and Allied Electronics are going to crown a winner in early 2016 for the best reader gadget submission this year, and once again, you, the readers, are the judges!
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