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TIL that Ray Dolby (the “Dolby” on audio equipment) helped develop the first videotape recorder before the age of 21. After founding Dolby Laboratories, he became a billionaire by charging little for his technology so others paid him instead of developing their own.

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EgY9d TIL the last Woolly Mammoth population still existed when the the Pyramid of Giza was being constructed.
Lk4o9 TIL The oboe is frequently described as a very difficult instrument to play. Because air is forced at high pressure into the tiny reed, stale air can gather in the lungs, making you feel faint if the air is not expelled quickly
gNxD TIL of the Asian brown cloud, a layer of air pollution that appears over South Asia and the Indian Ocean every year between January and March when there is no rain to wash pollutants from the air. Nearly two million people die each year, in India alone, from conditions related to the brown cloud.
GY7Vj TIL that the letter Z is worth only one point in the Polish version of Scrabble
R75m4 TIL that eating an Elephant Ear plant raw tasts like you have glass shards in your mouth due to calcium oxalate crystals. The leaf is, and can be cooked and eaten. Rhubarb also contains these crystals.