Liquids that respond to a magnet? This is not science fiction, but science fact. In this segment, Dr. Ainissa Ramirez, shows the wonderful world of ferrofluids, which are iron particles floating in a liquid. When a magnet is nearby, the ferrofluid makes weird shapes and increases in viscosity. Dr. Ramirez also demonstrates how you can make a ferrofluid at home using breakfast cereal.
Spiderman isn't the only person who can walk on walls and make webs stronger than steel. Scientists are making this possible in the lab. In this Science Xplained, Dr. Ainissa Ramirez describes the science behind making webs and walking on walls. By studying spiders, engineers can create materials that are bulletproof and can build robots that can climb the side of a building.