› added 4 years ago

538

TIL that the reason people didn’t smile in old photos is because early photography was inspired by painting, where smiling was seen as inappropriate while stern looks appeared more formal for portraits.

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ZpxO4 TIL the cover of the Clash's 1979 album London Calling which has the album title in pink letters down the left side and green text across the bottom is an homage to Elvis Presley's self-titled debut album which featured a similar design.
KYNQa TIL that in 2005, monkeys were taught the concept of money. It didn't take long for the monkeys to realize that they could pay other monkeys for sex.
9wdWD TIL Bed Rest has no proven benefit for any condition, beyond that imposed by symptoms
ZpLB TIL that smoking shouldn’t have been banned on airplanes because they recycled the air more frequently w/smokers in the cabin. Now, airborne viruses and bacteria are much more harmful and CO2 levels are higher–all to save airline companies money.
gKp7 TIL Geneticists have figured out the time that evolving humans lost their primate body hair by using mitochondrial DNA to calculate the date that head lice evolution diverged from that of public lice.