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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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XEZKX TIL there's a mock religion called Discordianism. Its main deity is Eris (goddess of discord, of course) and it even has a calendar. A Discordian believes there is no distinction between disorder and chaos.
b9aDQ TIL in 1981 President Ronald Reagan fired the entire air traffic controllers union, invoking a law that stated government employees that engaged in a strike forfeited their jobs.
XvKk TIL that to prepare IBM’s Watson for Jeopardy, researchers inputted the entirety of Urban Dictionary. Unfortunately, this had the side effect of Watson adopting profanity. In one test, it even used the word “bullshit” to respond to a researcher’s query.
gQ74 TIL American POWs captured 2 days after Hiroshima bomb were rescued from angry mob by Japanese police captain, then discovered over a dozen US POWs had perished.
4kA1a TIL Disney/Disneyland formulated 2 specific colors (Go Away Green and Blending Blue) to help “erase” backstage buildings and camouflage parts of the park that are under construction.