› added 12 years ago

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TIL “The Hum” is a low frequency sound heard by about 10% of the population at night and on overcast days

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yK9v TIL The average life span of a great nation is 250 years and the similarities between them are amazingly similar despite geographical and technological differences and this pattern has been consistent for over 3,000 years
4XEPa TIL Ben Sliney, FAA operations manager who ordered 4,000 planes to be grounded immediately after the 9/11 attacks, was on his first day on the job.
JWA4 TIL that any North Koreans that escape to South Korea are automatically granted citizenship upon arrival
yQWwl TIL about the Official Table of Drops, a manual that is used to calculate the appropriate length of rope for long drop hangings.
e0poL TIL the saying 'Great minds think alike' has a second part, 'and small minds rarely differ.'