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Tag Archive 'physics'

Water surface tension

If you look closely at a puddle during a rainstorm, you see a weird thing: little balls of water skating around as though the are being rejected by the receiving pool. They disappear quickly, so it’s hard to keep your eye on them. What’s going on? What would it look like if you had faster [...]

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When it comes to big things, it’s hard to get momentum right. We don’t have much experience with truly massive things moving quickly and unpredictably. Airplanes, trucks, and trains in normal circumstances aren’t surprising. But here’s a video of a train wreck during a tornado (nobody gets hurt). Watch through to the end to see [...]

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