› added 8 years ago

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TIL that during a critical moment in the Apollo 13 mission the Soviet Union discontinued radio transmissions in the frequency bands used by Apollo to prevent radio interference

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e0m0D TIL US Presidents are prohibited by the Secret Service from going to the top of the Gateway Arch in St Louis, MO
Z81OB TIL about Operation Sandblast, the first submerged circumnavigation of the world in 1960, which took 60 days and 21 hours to complete. They generally followed the same path used by Ferdinand Magellan in the first circumnavigation of the world in 1519.
0wYbR TIL that English is the most efficient language
nWag9 TIL that actress Bette Davis became the first female lifeguard for Ogunquit Beach, Maine in 1926.
lvkB TIL that Greg Graffin, the lead singer of “Bad Religion”, also holds a PhD in zoology and is a biology professor at Cornell University.