Watch former UFC women’s bantamweight champion Holly Holm fire a large potato gun. WikiHow says the gun, also called a spudzooka, potato cannon, and spud gun, make for an entertaining project that also demonstrates a few laws of physics along the way. Part of the thrill of constructing a potato gun comes from experimenting with the basic design to get the best performance, all while learning valuable engineering lessons.
A combustion-based spud gun has three basic components: an ignition source, a fuel chamber and a barrel. When the pressure in the barrel overcomes the resistance from the potato, the expanding gas forces the potato down the length of the barrel and into the air.
Watch Holly Holm fire a potato gun below:
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