Crank up the brain cells as Kari Byron shows how to make the perfect smoke ring, puts termites through their paces and hurls a watermelon from a four-story building. Also, see human projectiles fly through the air, and find out how to dry your cell phone.

Host, Kari Byron tests the laws of physics with a fork and drinking glass, detects fake diamonds, and introduces a color-crazy crab. Also, learn how to dust for fingerprints using a magnet and laser toner, and the secret behind hitting hockey puck.