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TIL Apollo 11's Solar Wind Composition Experiment consisted of an aluminium foil sheet fixed to a pole facing the Sun. Studied by Swiss physicist Johannes Geiss, it was the only non-American experiment to be part of the mission and carried out on every moon landing

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epNPJ TIL: Both the DNA and anthropological examinations of Hitler's skull suggested that the skull actually belonged to an adult female who would have been considerably younger.
b6EZ0 TIL that Filippo Argenti, an aristocratic of Florence, once slapped Dante Alighieri. So Dante decided to put him in his Inferno, among the wrathful, forcing him to fight with other wrathful for the rest of eternity
p8oe4 TIL a poor 19th century Chinese man failed the civil service exam, fell ill, reread a Christian pamphlet he had earlier ignored, & hallucinated that he was Jesus' brother. He led a cult/rebellion that conquered much of southern China, crowning himself as king. This civil war killed over 10 million.
yQ6Re TIL that some animals have their brains changing seasonly depending on the needs. Like in birds the singing part of the brain grows in the build-up to mating season to increase their sing-skills.
wLBOJ TIL that the animal that causes the most human deaths annually in the US is deer. Deer sometimes leap blindly into roadways causing tens of thousands of traffic accidents annually. These accidents cause an estimated 200 deaths every year. Runner-up: Bees, wasps and hornets with 58 deaths.