- Set the hair dryer to cool, switch it on, and point it at the ceiling. - Carefully put the ping-pong ball in the stream of air. Hold the hair dryer very steady and watch as the ping-pong ball floats ...

What should you do when confronted by a floating raft of thousands of fire ants? Among the many scenes of devastation coming out of areas flooded by Tropical Storm Harvey, images of floating rafts of ...

We’ve all made a tiny ping-pong ball float on a hair dryer, but what YouTube’s Veritasium is demonstrating here—a giant styrofoam ball floating on the side of a thin stream of water—seems to ...

What should you do when confronted by a floating raft of thousands of fire ants? Among the many scenes of devastation coming out of areas flooded by Tropical Storm Harvey, images of floating rafts of ...