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TIL Simply calmly treading the water in a rip tide can return you to shore in 3 minutes, because rip currents are really whirlpools, according to an oceanography professor's study that sensors to analyze the flow of wave water. (Source: nps.edu, 2010)

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y7Op TIL When Kim Jong-un was a student in Switzerland his identity was kept secret. He was registered as the son of an employee of the North Korea embassy. His alias was “Chol-pak”. Apparently his grades were poor and he enjoyed playing basketball.
9YdnQ TIL that a lemon is actually a hybrid between a bitter orange and a citron, meaning life never gave us lemons, we invented it ourselves.
WkdeX TIL: According to legends Saint Bartholomew, an early Christian martyr, was skinned alive and beheaded. Bartholomew is often depicted holding his flayed skin or the curved flensing knife with which he was skinned
npVd TIL the Grim Reaper was most commonly depicted carrying a scythe as imagery to death was an extension of an agrarian society in which harvesting, done in the fall, represented the death of another year.
JYOEm TIL US aircraft carriers are so large they each have their own designated zip code