Try flipping a cup upside down without losing a drop of water. Turns out this is way harder than it sounds. Centripetal force keeps the water pressed against the bottom of the cup even when it's upside down. Most people's instinct is to go slow and careful, which is exactly wrong. No mess required (well, maybe a little). If you want to learn more, check out ‪@KiwiCo at kiwico.com/YTShorts. #science #kiwico #scienceexperiments #officechallenge