The science pros at TKOR test a DIY potato launcher and show what fails.

STEP 1: Push one end of the copper tube into the potato. Pull the tube out of the potato. STEP 2: Push the other end of the copper tube into the potato. Pull the tube out of the potato. STEP 3: Use ...

These friends went outside to test their homemade potato launcher, but as they aimed the gun at their target, the backing of the launcher popped off and shot out at the cameraman's hands, causing him ...