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TIL: In 1939, Australians coped with heatwaves by sleeping on beaches, staying social outdoors, and using creative cooling methods like wet towels. This was before refrigeration and AC became widespread

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9Anr TIL that when numbers are written in a spiral, prime numbers appear along diagonal lines.
pOXp TIL: There was an anti-car jacking device called the “Blaster” in South Africa, the occupant could flip a switch and direct 5 metre plumes of flame upward into the facial area of anyone trying to enter the vehicle through the doors or windows.
D1NpP TIL that Socrates, most well known as an elderly philosopher, was a soldier in the Athenian military up to the age of 48. Serving as a hoplite, he fought in the Peloponnesian War, where he was noted for his bravery.
gMpdy TIL that sea snakes can die of thirst and rely on rainwater to make pools on the ocean surface in order to survive.
woERP TIL since 2000, the Clay Mathematics Institute is offering a prize of 1 million dollars to the person that can prove the Riemann Hypothesis. No one has been able to prove it since it was formulated by Bernhard Riemann in 1860.