› added 5 years ago

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TIL in the 1940's the American Government infected hundreds of Guatemalans with syphilis to study the effects of penicillin without their knowledge

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5YmmB TIL After Minnie Cox, the first black female postmaster was pressured out of her post, President Theodore Roosevelt continued to pay her salary and punished the town by rerouting their mail 30 miles away, in the end the atmosphere became so hostile that Mrs. Cox left for her own safety.
rRjNM TIL about a lightweight and low-cost “brick” that is made of recycled plastic and sand that is stronger than concrete material. It was created by an engineer in Kenya named Nzambi Matee
4X0KN TIL moths are a crucial pollinator of a wide range of flowers and plants. New research shows that the moths' transport networks are larger and more complex than those of daytime pollinators like bees.
Y7P97 TIL that Robin Williams named his daughter Zelda after the video game.
8eLvL TIL Japan has one vending machine for every 30 people