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TIL that planets can appear in retrograde motion to the earth for some time. TIAL that Mars does that every 26 months, Venus every 18 months, Mercury 3-4x a year, Jupiter, every 9 months, Saturn, Uranus, and Neptune every year-ish

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9x1D TIL that the “crunch” of crisps is the result of a hundred or more tiny air bubbles being released at speeds of 300 meters per second… in other words, a crunch is a tiny sonic boom inside your mouth.
W77o9 TIL about the Krupp family. A 400 year old dynasty of weapons manufactures that been selling weapons since the thirty years war and were the premier weapons manufactures for Germany during both world wars. They still exist today after merging with Thyssen to form the ThyssenKrupp corporation.
Erjd TIL more than 500 Indian workers were lured into working for shipyards in America with the promise of American citizenship. The company sent them into a labor camp, held their passports, extorted them with lies about various fees, and threatened them with legal and physical harm.
v1APL TIL that South Korea is #1 in the world in hard liquor consumption, averaging 13.7 shots per week, way ahead of Russia in #2 at 6.3 shots per week.
grVlD TIL in the 1980s, parents were upset at a Seattle firm about phone bill charges after a half-hour show featuring Santa told children to hold the telephone up to the TV whereupon touch-tone sounds would dial a 1-900 number. A spokesman said this was to prevent children from dialing the wrong number.