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TIL nomadic Maasai herders in Kenya's savanna use mobile phones to alert each other to dangerous wildlife, and those with basic phones call friends with smartphones to find out the weather forecast

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NXGD6 TIL that "Johnson's Baby" brand started in 1893 with Johnson's Baby Powder. The earliest Baby Powder was in a yellow & red tin with a label "For Toilet and Nursery”. The talc based Baby Powder was discontinued in 2019, due to concerns of the product containing asbestos, which can cause cancer.
dEnE TIL The Curiosity rover has Morse code embedded into the tread on its wheels.
aw5vN TIL that salmon migration provides Nitrogen, an important nutrient, to forests surrounding estuaries via predation by bears and other animals.
Br0r TIL upon its discovery by Marie and Pierre Curie in 1898, the element polonium was named after Poland (in latin Polonia) to shed light on the countries lack of independence. It may be the first element named to highlight a political controversy.
pLMA TIL of Camp Century, a top-secret US military base built under the ice sheets of Greenland in 1960 to house missiles. Built under the cover of climate research, it housed 200 people and was powered by the world’s first portable nuclear reactor. Denmark didn’t uncover the base’s existence until 1995.