Stand back Genius at work Encase your little bother in a giant soap bubble. Drop mentos into a bottle of diet soda and stand back as a geyser erupts. Launch a rocket made from a film canister. Here are 64 amazing experiments that snap, crackle, pop, ooze, crash, boom, and stink. Giant air cannons. Home-made lightning. Marshmallows on steroids. Matchbox microphones. There's even an introduction to alchemy. (Not sure what that is? Think "medieval wizard.")...