› added 10 years ago

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TIL conservatives and liberals can be identified with 70% accuracy based on brain scans

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rlLM TIL of the Solomon curve. The safest speed to travel at is five miles over the speed limit.
5YMjR TIL Apollo astronaut Edgar Mitchell took home a 16 mm camera from the Lunar Module that would have otherwise been destroyed. Mitchell tried to auction the camera to help medical treatments for his son who had cancer before he agreed to relinquish the camera by donating it to the Smithsonian
9YjnM TIL about Tunnel Boom. Compression waves are generated in front of the high-speed train upon entering a tunnel. These compression waves subsequently coalesce into a weak shock wave so that a unpleasant sonic boom is emitted from the tunnel exit.
R7O41 TIL: Pooping can be a very dangerous activity for sloths. By some estimates up to half of sloth deaths are caused by taking poops on the forest floor.
gMb59 TIL: Around 150 years before bimetallic Euro coins appeared, some bimetallic coins circulated in England. In J. Moore's 1840s privately-made "one penny model," proposed replacements for large copper pennies, a copper donut held a pea-sized silvery Queen Victoria disc. Some shopkeepers accepted them.