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TIL: weight gain happens because fat cells become larger in both size and number, while weight loss only reduces the size of fat cells, so you end up with a larger number of fat cells than before.

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BrPlL TIL of Albert Pierrepoint, England's lead hangman from the 1940's-1950's. He executed many Nazi's and other high profile murderers. He owned a pub and usually was able to carry out an execution and still make it back to open his bar on time. He once had to hang one of his regular pub customers.
R5kpw TIL the worst hydrogen airship disaster in history is NOT the 1937 Hindenburg disaster. In 1930, 48 of 54 passengers on a experimental British Airship were killed in a crash during a storm over France. Of the 97 passengers on the Hindenburg there were 35 fatalities, plus one ground crew death.
neDa9 TIL: Male Western parotia bird appears like a ballet dancer while performing courtship display to attract female. He just doesn't perform, but rehearses in advance and ensures the perching spot is clean for the female to watch the show comfortably. The endemic species belongs to birds of paradise.
erbb TIL: There is a machine that transforms concrete rubble into Lego like building blocks. The blocks allow victims of war or natural disasters to construct their own new, earthquake resistant houses.
lewA TIL Bill Murray invented the phrase “you’re toast” to mean “you’re screwed” while ad-libbing in Ghostbusters