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TIL San Francisco has the most expensive rent in the world

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p86Gb TIL about the Tuskegee Study of Untreated Syphilis, a clinical study on African American men where they went deliberately untreated by medical professionals as part of a 40-year experiment by the US Public Health Service. Cited as "arguably the most infamous biomedical research study in U.S history"
lE51 TIL that Scientists Have Set New ‘Standard’ With Map of the Universe at an Ultra-Precise 1 Percent
4aN6 TIL The Quran does not explicitly forbid images of Muhammad
7rY4P TIL: Samuel Morse invented the telegraph after he received a letter of his wife’s failing health… after she’d died.
E15v7 TIL that United States Army had a tactical deception unit called "Ghost Army" during the WW2, it consisted of 1100 soldiers, their job was to deceive the enemy by inflatable tanks, sound trucks, and fake radio transmissions.