This is a video of Destin from Youtube channel Smarter Every Day using a supersonic baseball cannon to blast various objects with baseballs at speeds up to 1,189MPH (for reference, the speed of sound is ~767MPH). The baseball just blasts right through the gong, and the mirror shot is particularly neat to watch because it looks like two balls colliding with one another. Man, I wish I had a supersonic baseball cannon. And I’m not just saying that because my neighbor’s Christmas lights are too bright, but hopefully they’re the kind where the whole string goes out if you blast a baseball clean through the house.