› added 4 years ago

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TIL that there is another type of diamond called Lonsdaleite, which are naturally produced at meteorite impact sites. They are about 58 percent harder than regular diamonds, and are much rarer and more valuable.

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bpR9 TIL the way you pay for something affects how you perceive the transaction. Using cash “hurts” more because the loss of money is perceived to be more immediate, while using a credit/debit card decouples the purchase from the loss of money.
VaN4 TIL that during the San Francisco Police Department Strike of 1975, the SFPD clashed with the law and the Mayor. Eventfully a bomb was detonated on the Mayor’s lawn with a sign reading “Don’t Threaten Us.”
e0VPb TIL: The Northern Cheyenne Chiefs said they were sworn to keep a vow of silence about the Battle of Little Big for 100 summers and had never publicly issued their account before because they feared retribution from the U.S. Government . In 2005, 130 years later, they broke their silence
pYyw4 TIL in 1862 John Langdon Down was the first to describe a distinct mental disability, calling it "Mongolism" due to his perception that children with it shared facial similarities. Now called Down Syndrome, was discovered in the 1950s to be caused by the presence a third copy of chromosome 21.
BrB7L TIL that in 1957, 69% of Americans polled by Gallop reported that religion was increasing in influence; by the late 1960s the figure was less than 20%.