World’s Longest Home Run (The “Mad Batter” Machine) Smarter Every Day made this mad batter machine and sending balls 250 mph. Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts World’s Simplest Electric Train Another Non-Newtonian Liquid Experiment Neat Little Demonstration of Relative Motion Magnetic Properties of Liquid Oxygen Owls Have Remarkable Head Stability Is It Dangerous To Talk To A Camera While Driving?