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TIL The guillotine remained the official method of execution in France until the death penalty was abolished in 1981. The final three guillotinings in France were all child-murderers.

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KopQ TIL in 1969, GM experimented with steam power and even built a steam powered Chevelle
VBWL4 TIL Claudius Ptolemy made a list of the angle in water for each number of different angle in air, as recorded on a table from 140 AD. But it was not until 1621 when Willebrord Snell found the rule connecting the two angles: sinθi=nsinθr
XEXo6 TIL about Vacuum Airships which are a hypothetical type of airship which would use a vacuum instead of gas filled balloons to generate lift.
GYvpQ TIL: Bill Gates' idea of a splurge was a used Porsche 911 after Microsoft went public that made him worth over $350Million before the age of 30
1aPwd TIL Japanese scientists have discovered a method to record/reconstruct your dreams by means of a Magnetic Resonance Imagining scanner (MRI)