Here are 50 awesome experiments that demonstrate the principles behind the 34 greatest scientific breakthroughs in human history. The wheel-astound friends with an experiment that seems to defy the laws of gravity. The rocket-launch a soda bottle into the air. The microscope-peer through a lens made out of water. Atomic theory-prove it with food coloring. The Large Hadron Collider-re-create it with marshmallows. (Tasty!) Using stuff from around the house, the curious can now boldly go where the bravest scientists in history have gone before.