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TIL that redheads are more sensitive to temperatures, but less sensitive to pain in the skin than rest of the human population.

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yQMge TIL about an organization with an unconventional definition of Science
x0JB TIL the company behind ITT Tech was once one of the biggest conglomerates on Earth. They grossed $8 Billion in 1970, were heavily involved in the Brazilian and Chilean coupes, and were recently fined $100 Million for violations of the Arms Export Control Act.
9YaP6 TIL Atlantropa was a gigantic engineering colonisation idea devised by the German architect Herman Sörgel in the 1920s. The project was devised to contain several hydroelectric dams in key points of the Mediterranean Sea to cause a sea level drop and create new land to settle.
m1D6M TIL - An alloy of Gold, Silver, and Copper can look white, yellow, red, or even greenish yellow
KYw6Q TIL that Charles V, Holy Roman Emperor had an extramarital sexual relationship with his own step-grandmother, Germaine de Foix, who was one of his many mistresses. Charles later married his first cousin, Isabella of Portugal. His sister, Eleanor, married Isabella's father and her uncle, King Manuel.