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TIL about the Earth Inductor Compass. Patented in 1912, obsolete by the mid-1930s, it is a type of compass that uses the principle of electromagnetic induction with the Earth's magnetic field. One was used by Charles Lindbergh in his solo flight NYC to Paris in 1927.

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gM8lX TIL that after the Nazi invasion of Yugoslavia, Elza Polak was fired for being a Jew. In revenge, she ran a network of gardens for the Yugoslav Resistance. She is now considered a pioneer for horticulture in Croatia
XENr TIL Samuel L. Jackson requested to have a purple lightsaber in order to make his character stand out in the Star Wars films
e0Yyn TIL that, aside from some obvious exemptions, like exposure of genitals for a sexual purpose to anyone who's underage, public nudity is not illegal anywhere in Canada. Being topless in public, nude sunbathing, swimming and even streaking have been upheld as legal through multiple court challenges.
QJ8Od TIL in 1929, German doctor Werner Forssmann performed the first human cardiac catheterisation on himself. After ignoring his boss and tricking a nurse into helping him, he inserted a catheter into his right arm before calmly walking to the x-ray department. He was later awarded with the Nobel Prize.
W7gR4 TIL KFC founder Colonel Sanders and his wife, Claudia had grown unhappy with recipe changes at KFC after selling the company. So in 1968, they opened Claudia Sanders Dinner House. It was later subject to a lawsuit by the new owners of KFC that was settled out of court.