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TIL that infrared is called infrared because it's below the red on the light color spectrum. Also ultraviolet is called ultraviolet because it's beyond the violet on the light color spectrum.

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9BYB TIL In 2009 a Man Who Was an Expert on How to Avoid Being Kidnapped in Mexico Was Kidnapped in Mexico After Giving a Lecture On “How To Not Be Kidnapped in Mexico”
a8BgL TIL the smoot is a unit of measure named for Oliver R. Smoot, an MIT student who as a fraternity pledge was forced to measure the Harvard Bridge using himself as a ruler. A smoot is equal to five feet, seven inches.
jNajn TIL that women are far more likely to kill people they know, and to do so by the stereotypical techniques (for women, at least) of poisoning and asphyxiation.
PYXlw TIL The woman killed in the Gare Montparnasse accident was filling in for her husband at his newspaper stand
jNg1M TIL Intermittent fasting from dawn to sunset for 30 consecutive days is associated with anticancer proteomic signature and upregulates key regulatory proteins of glucose and lipid metabolism, circadian clock, DNA repair, cytoskeleton remodeling, immune system and cognitive function