A metric tonne (1000 kg) should be called a megagram (1 Mg).

it’s a hard thing for me to wrap my head around, but it’s cool when you think about it: there’s actually no possible shared reference; even with atomic clocks, based solely on the bouncing of cesium atoms ticking away, the distance travelled is dependent on acceleration in your reference frame.

relativity really is!

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A “Showerthought” is a simple term used to describe the thoughts that pop into your head while you’re doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.

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