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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.

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neV1Y TIL of Waleed Khan, a 16 year old boy from Pakistan who survived being shot five times in the face at the age of 12 when 6 Taliban Militants attacked his school, killing 149 people including 132 school children.
pYNNA TIL about Sequoyah, a Native American of the early 19th centruy who, just seeing white people writing, understood what writing was and created, all by himself, an advanced syllabary system. After some years, more than 90% of Cherooke people were able to read.
1aZXV TIL: A Russian man saved the world by ignoring the commands of a missile detection system. His gut instincts were correct. it was a false alarm. There were no nukes coming from the United States. It was some clouds that fooled the sensors.
rRN7o TIL what most people refer to as "squirrels" are actually correctly known as "tree squirrels", and the term 'squirrel' itself refers to a variety of other animals including chipmunks and prairie dogs
4XeB5 TIL about Mariya Oktyabrskaya. When her husband was killed in 1941, she paid for a tank, named it "Fighting Girlfriend," and distinguished herself as a fearless and deadly tank driver, often repairing her tank under heavy fire. After she died in March 1944, she was named a Hero of the Soviet Union.