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Short answer: It’s up for debate.

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9bMG TIL PornHub.com offers a $25,000 scholarship to the qualified applicant who can best answer the question, “How do you strive to make others happy?”
AwLa TIL Nikolai Tesla patented a one-way-valve with no moving parts in 1920 (Patent US1329559)
x6rK0 TIL shark skin has anti-microbial properties which has been recreated to provide a non-chemical antibacterial surface that has been proven to reduce bacteria by 95% after just one hour of UV exposure
0dEkp TIL Rectal temperature is a method coroners can use to determine time of death
7B9b TIL that 170 people were able to guess the number of jelly beans in a jar accurate to .1% when their answers were averaged. Out of 4520 beans, the average guess was 4524. The phenomena is known as wisdom of the crowd.