A few years ago, astronaut and science educator Don Pettit joined the crew of the International Space Station. All astronauts are allowed to bring a few personal items with them. Pettit chose to bring candy corn. He used that candy corn to build a sphere in zero gravity.
Why? Because Pettit wanted to teach certain principles of chemistry and physics to people back on Earth. He began his experiment by coating the wide ends of the candy corn with oil and inserting them into a drop of water. The oil-coated ends tended to move toward the edge of the sphere, away from the water. This is a demonstration of how soap works.
-via First We Feast
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