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TIL that the average life expectancy of a flamethrower operator in combat during WWII was less than 10 minutes.

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xp11 TIL that the SR-71 was able to maintain its heading within 1,000 feet at Mach 3 by using a navigation system that tracked a series of 61 stars using a sensor capable of detecting them in broad daylight.
GD9J TIL the “tooth fairy” leaves an average of $3.70 per tooth, up 23% since 2012.
Oojy4 TIL that Compassion Fatigue is similar to PTSD, & Secondary Traumatic Stress
GYd6N TIL at the beginning of Rob Zombie's song Dragula, the line "Superstition, fear and jealousy" was a clip spoken by Christopher Lee in the film, The City of the Dead.
pYG5A TIL that John Maynard Keynes, from whose work the modern economic system is derived, was a Marxist.