› added 2 months ago

20

TIL that green/blue screens were actually developed in the 1930s

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via reddit.com

QJQyX TIL cars made in the 1950s often had a loud and resonant 'country horn', and a quieter, polite 'city horn'
dXEQ TIL certain Panera Bread cafés are “pay-what-you-want” for food.
JYJVm TIL the bacteria which caused the black death, first infected Oriental Fleas by blocking their foregut, keeping them hungry and biting, to facilitate it's rapid transmission to human hosts.
KOnJ9 TIL that Gwyneth Paltrow marketed jade eggs for women to insert into their vaginas, and got sued for false claims and misleading information
OoyO1 TIL 'dyscalculia' is difficulty in learning or comprehending arithmetic, such as difficulty in understanding numbers, learning how to manipulate numbers, performing mathematical calculations and learning facts in mathematics.