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TIL The South Atlantic Anomaly is an area where the Van Allen radiation belt is closer to the earth's surface (200km from the surface). The SAA has caused false solar flare alarms, led to the destruction of the Hitomi telescope, and crashes laptops.

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P1dpw TIL the RAF air raid on Hamburg on the night of 27 July 1943 unleashed a firestorm, with temperatures reaching 800°C and winds of up to 240 km/h, incinerating 21 km² of the city and killing over 18,000 people. A large number of those killed were seeking safety in air raid shelters and cellars.
gMEaX TIL Researchers found that women who were interested in a fling liked the scruffy look, showing a high preference for men with light and heavy stubble and little interest in the clean-shaved baby-faced look. But for women searching for someone to settle down with, the longer the beard the better
EJQ0 TIL that the Roman Emperor Commodus would fight in the arena as a gladiator. His opponents consisted of giraffes, citizens missing limbs and wounded roman soldiers. For every appearance in the arena he charged the city of Rome 1 million coins.
DKRe TIL that ADHD affects men and women differently. While boys tend to be hyperactive and impulsive girls are more disorganized, scattered, and introverted. Also symptoms often emerge after puberty for girls while they usually settle down by puberty for boys.
Brg8W TIL that Byzantium not only developed sophisticated systems for taxation, justice, administration, and military deployment, but is also rarely credited with refuting Aristotle’s theory of falling bodies, one thousand years before Galileo.