› added 5 years ago

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Today i learned about Great Zimbabwe, largest settlement ruins in sub-saharan Arica which also tradet with Arab-Indian states. When european colonists saw it, they claimed it was too complex to be of african origins, and ordered historians to dispute the evidence of its african history.

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via reddit.com

E1QJo TIL That in the Live Aid Queen performance, at 16:38 you can see a wave going to the back of the stadium from the people clapping. That wave is the speed of sound, caused by the people at the back hearing the music a split second before the people at the front.
yVgMp TIL that nearly 2 out of every 3 revolvers sold in the US are made by a Brazilian company. Taurus, based in Brazil, dominates the American revolver market with a staggering 61% share
oylA TIL China is creating a car-free city from scratch: “Great City will be built around a high-rise core housing 80,000 people, entirely walkable, and surrounded by green space.” It designed to use less water, create less waste and generate less carbon dioxide than a normal city.
vPX6j TIL: US government made a lot of money from bailing out big banks in 2008. As of 2018, Fannie Mae has paid $176 billion in dividends to the Treasury Department, while Freddie Mac has paid $117 billion.
R7B86 TIL: Egg tempera is a painting medium that uses egg yolk to bind pigments. It was a ubiquitous technique during the early Italian Renaissance, when it was considered the standard for portable easel paintings. Botticelli, Raphael, and Andrew Wyeth all painted with tempera.