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TIL a nurse wanted to know if her farts were contaminating equipment in the lab. The doctor and a microbiologist tested the hypothesis by having a colleague fart clothed then naked onto two Petri dishes. The conclusion was that clothing acts as a filter, but naked farts can cause contamination.

Read more ncbi.nlm.nih.gov

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Y7myx TIL Cao Xueqin is considered to be China's greatest novelist, but little is known of his life. He spent ten years writing "A Dream in Red Mansions" from 1740 to 1750 but the last chapters were written by a different author. The novel was not published until 1791, nearly 30 years after Cao's death
Oo17R TIL When Sweden won the ice hockey world championships in 1957 in Moscow, the Soviets didn't have the national anthem ready. The Swedish team decided to sing it over the stadium's PA system, but didn't know the words to the anthem, so instead they sang the Swedish drinking song, "Helan går!".
rb91 TIL A Dutch door is a door divided horizontally in such a fashion that the bottom half may remain shut while the top half opens. The initial purpose of this door was to keep animals out of farmhouses, or keep children inside, while allowing light and air to filter through the open top.
VBRpp TIL NASA has their own SWAT team
D9WY TIL that after the 1991 START I treaty between the US and the USSR, the US chopped 365 B52 bombers into 5 pieces each using a 13,000lb steel blade dropped from a crane. It then left the pieces there for 3 months so that Russian satellites could verify their destruction.