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TiL: Farts Can Be Deadly (to Astronauts).

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4kXKa TIL that watercress technically has more protein per calorie (roughly 21g/100 Kcal) than a lot of protein powders(standard whey protein powders have about 20g/100 Kcal).
98Xr TIL Google’s first server rack was made from Lego.
x6QY0 TIL that they invented wide QR codes. Dubbed "rMQR", it has the same parameters and applications as original QR code, but is more suitable for rectangular areas.
J5el TIL Alice Cooper has credited golf with playing a major role in helping him overcome his alcohol addiction. He has even gone so far as to say that when he took up golf, it was a case of replacing one addiction with another. He now plays six rounds a week with a 2 handicap.
KxlG TIL of The Thing - a listening device in a carving of the Great Seal of the United States. A gift from the USSR to the US, it hung in the embassy for 7 years. It contained no electronics and would activate when a radio signal of the correct frequency was transmitted to it.