› added 6 years ago

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TIL the rarest blood type on Earth is RHnull with only 43 people reported on Earth with that blood type.

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LQLn0 TIL that former presidents Thomas Jefferson and John Adams died on the same day; July 4th, 1826, exactly 50 years after the signing of the Declaration of Independence.
X8W8 TIL your rectum and anus—is lined by cells similar to those in your mouth, which is why spicy foods can burn just as much on the way out as on the way in
kJPG1 TIL about the "Symphony of Industrial Horns". A avant-garde rendition of The Internationale performed by Arseny Avraamov in Baku, Azerbaijan, 1922. The Symphony utilized live sounds of trains, naval vessels, factories and other industrial installations across the city as its instruments.
7rJQP TIL approximately 140 million cellphones are discarded every year, which would equate to 2,100 metric tons of copper and 3.9 metric tons of gold, among other metals, plastics and glasses
Vxbm TIL - Empty skies after 9/11 caused a measured change in temps due to lack of jet contrails in the sky