› added 5 years ago

1720

TIL Humans domesticated dogs before they developed written language

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e0dYb TIL about Ellsworth & Emery Kolb, brothers from the early 1900's who "dangled from ropes, clung to sheer cliff walls by their fingertips, climbed inaccessible summits", and defied death to photograph the Grand Canyon
wo5eP TIL in 1947 Raytheon built the first commercially available microwave oven. It weighed 750 pounds, was water-cooled and cost about US$5,000 ($61,000 in 2021 dollars).
gMYZ7 TIL For Decades, Southern States Considered Thanksgiving an Act of Northern Aggression
grL1W TIL that researchers have studied gambling behavior in monkeys to understand human risk-taking. Capuchin monkeys were given tokens to "bet" on a gamble with varying odds of winning. The monkeys showed similar behaviors to humans, suggesting an an evolutionary basis for gambling tendencies.
9y4X TIL China has been producing fake chicken eggs since the 90s. The production cost is less than half of a real egg. They are made from a mixture of resin, starch, coagulant and pigments, while algae gives them proper viscosity. The shell is made from paraffin wax, gypsum powder, and calcium carbonate