[hw97karbine] has made a pretty cool tennis ball cannon. While making a cannon of this sort is nothing new to us, we were impressed by the effort taken to get a stoichiometrically ideal mixture of ...

Build A Tennis Ball Cannon From Old Soup Cans Posted: April 2, 2025 | Last updated: April 2, 2025 "Follow The King of Random for more exciting experiments, life hacks, and creative science ...