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TIL Lonely parrots can be taught to call their buddies.

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kO9M1 TIL a F-15 took down a satellite.
a84vL TIL Beetween N and 2N there is always a prime number
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yQ978 TIL: An inventor has created a Rubik's Cube that solves itself.
D1lme TIL the oldest mathematical artifact in the world is the Lebombo bone, found in the mountains of Eswatini (formerly Swaziland), Africa. The bone was likely used as a measurement device and to keep track of lunar cycles, suggesting that the first mathematicians might have been African women.