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TIL that The Smallest Computer in the World Fits On a Grain of Rice

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VBVDp TIL The reason tennis balls are yellow is largely thanks to Sir David Attenborough
0wMbv TIL there is no constitutional requirement for a U.S. State to hold presidential elections. A State legislature can theoretically just handpick its presidential electors.
EM1o TIL due to a mutation in the MC1R gene, redheads require a larger doses of anesthesia compared to the rest of the population.
8O4a TIL of black rain, a form of precipitation caused by the immediate aftermath of a nuclear detonation, in which the water is black and sticky due to radioactive materials in the air.
x6QgB TIL that Shipworms, a marine mollusk or "termites of the sea", may have changed the history of the world by helping the British defeat the Spanish Armada by eating away at their formidable 130-ship fleet. They also inspired the design of modern tunnel boring machines by how they eat wood head first.