› added 10 years ago

242

TIL that women have lighter skin than men so that they can synthesize more Vitamin D when pregnant

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xAY0 TIL In 2012, A women pushed a man onto subway tracks and killing him because “He looked Muslim” and wanted to take revenge on 9/11
VMoMD TIL an underwater cave in southern France has >20,000 year old cave art on its walls, made when sea levels were lower. The art depicts Auks, Bison, wild horses, and more.
neAZW TIL that no one has ever measured the one-way speed of light. In fact it is undefined. All measurements of light speed are done using two-way (mirror) setups. It is entirely possible that light travels at c from A to B, and instantaneously from B to A, for a round trip speed of c.
negKB TIL The notion that we are all 99.9% the same came from looking for differences in our DNA letter by letter. The new studies show people not only have differences within their genes, but also in the number of their genes. We are definitely not as alike as we once believed.
ne9jY TIL Homing pigeons are often mistakenly called carrier pigeons. In fact, they are two different breeds of pigeons. The carrier pigeon was bred for its beauty and the homing pigeon, for its speed and ability to always return home