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TIL 24 writers of the Simpsons went to Harvard

Read more simpsons.wikia.com

via reddit.com

erlk TIL Tattoos consist of pigment particles suspended in the skin that are permanent because they are too big to be removed by the body. Laser treatment causes tattoo pigment particles to heat up and fragment into smaller pieces. These smaller pieces are then removed by normal body processes.
d8B8Z TIL President Theodore Roosevelt was such a loud snorer that during his hospital stays he had a whole floor to himself so the other patients could sleep
ZpAVa TIL: that the color of your nail polish can affect your blood oxygen reading.
WkWJN TIL Chuck Yeager enlisted as private, was an aircraft mechanic before becoming a pilot, got shot down over France but escaped, had 11.5 aerial victories, broke the sound barrier and multiple speed records as a test pilot, and retired from the US Air Force after 34 years as a brigadier general.
YW5P TIL that Hanukah is celebrated by eating fried foods (such as latkes (potato pancakes), jelly doughnuts sufganiyot and Sephardic Bimuelos) to commemorate the importance of oil.