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TIL Jose Canseco is the most successful author athlete of all-time having published 2 books—Juiced and Vindicated. Juiced spent 8 weeks on the New York Times bestseller lists and details the Steroid Era of baseball.

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M7Mva TIL During the 50's and 60's, Dr. Chester M. Southam injected patients and prisoners with cancer cells (HeLa cells) for research without their consent. He was reported and suspended for a year despite a cover up attempt. He later became President of the American Association for Cancer Research.
OoeOY TIL Linus Pauling, a Nobel prize winner in chemistry, was a eugenicist. He urged that human carriers of defective genes have a compulsory visible mark - such as forehead tattoos - to discourage potential mates with the same defect, having kids together.
0wy4R TIL The 1929 stock market crash was a result of an unsustainable boom in share prices in the preceding years. The boom in share prices was caused by the irrational exuberance of investors, buying shares on the margin, and over-confidence in the sustainability of economic growth.
6EKyW TIL about Ron Hunt, a construction worker, who in 2003 slipped off of his ladder and fell face fist onto a 18 inch long drill bit. It penetrated through his eye and by all means it should've killed him. Yet miraculously it pushed the brain tissue aside, leaving him (aside from his eye) unharmed.
ylvv TIL Foreskins are used to make high-end skin creams. The skin products contain fibroblasts grown on the foreskin and harvested from it. One foreskin can be used for decades to produce fancy face cream like the SkinMedica products hawked on Oprah