Rubbing a balloon on your hair can build a significant electrical charge. Water droplets have the same issue when they slide across a hydrophobic, electrically-insulated surface. A new study models Keep reading
Tag: static electricity
Water Reduces Coffee’s Charge
Grinding coffee beans builds up electrical charge as the beans fracture into smaller and smaller pieces. The polarity of the charge depends on the bean’s moisture content; lighter roasts tend Keep reading
Water Builds Static Charge
The ancient Greeks first recognized static electricity, but the mechanisms behind it remain somewhat mysterious. In particular, it’s unclear how two pieces of the same material can build a charge Keep reading