If you’ve ever built your own potato gun, you probably don’t think twice about the explosions that launch the projectile—mostly because they’re hidden within it. But SmarterEveryDay’s Dustin built his potato cannon out of clear plastic so when filmed with a high-speed camera at 20,000 frames per second, the explosions are revealed. And they’re terrifying.
Source: io9 – High-Speed Footage of a Mad Scientist Holding an Explosion in His Bare Hands