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The Physics Behind the Thumb Trick

Putting your thumb over a garden hose actually slows how fast a bucket fills, despite making the water shoot out faster. This happens because pipe flow is governed by an energy budget — pressure converts to velocity and back, but...

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Is There Oil on Mars?

Mars was a wet planet around 3.25–3.4 billion years ago, with rivers, lakes, and oceans — conditions similar to early Earth, where microscopic life already existed and eventually produced oil deposits. If similar microbes lived...