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TIL the median age in Japan & Germany is 48 years old, which is 10 years older than in the US

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V9op TIL Diesel and House Heating Oil are the same fuel. The difference is Heating Oil is dyed red and does not have a road tax applied to it making it cheaper. You can use it in off road machinery but it is illegal to use in a truck or car utilizing public roadways.
n1g7 TIL the term “groggy” comes from either the British or American Navy. These sailors drank Grog, which was a mix of rum, water, and citrus juice, which was used to fight scurvy. Someone who is dazed or sleepy might feel as if they have had too much grog, making them “groggy.”
rNNNM TIL why brain size doesn't correlate with intelligence. People have long been tempted to link brain size and cognition. The intuitive notion that a “big brain” means “more intelligent” was first threatened some time ago, when we discovered animals with larger brains than ours: elephants and whales.
v1PWB TIL that in 2016 India gave its citizens less than 4 hours notice that their two largest bills (worth about $8 and $16) would no longer be legal tender. They were only allowed to exchange a max of ₹2000-4500 ($31-70) per person per day, and ATMs were still running out of cash up to 5 months later.
7reEP TIL of Peter Conover Hains, who is the only Civil War veteran to also serve in World War I