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TIL The last time gold medals were made from solid gold was at the summer Games staged in Stockholm, Sweden, in 1912. Thereafter, the medals were cast in silver and coated in 6 g (0.2 oz) of gold.

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XgYR TIL that the Earth’s oceans absorb 25% of the carbon dioxide (CO2) that is released into the atmosphere every year. However, because of the increasing amounts of CO2 into the world’s atmosphere, the world’s oceans are slowly turning acidic.
KLLJ TIL Dave Foley owes 400% of his income in child support, and cannot return to Canada without facing imprisonment.
orrA TIL the ancient Greeks had a wine glass to ensure the drinker’s moderation
VrK0 TIL that Caddyshack was improvised so much that the initial cut was about 4 ½ hours long (Bill Murray’s “Cinderella Story” monologue alone was over 30 minutes long), and had to be edited down.
xVPeb TIL in the US radio-controlled clocks precisely coordinate time shifts with the official atomic clock at the Physical Measurement Laboratory in Boulder, Colorado. The atomic clock keeps time for the entire country and will neither gain or lose a second over the course of 100 million years.