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TIL Steam locomotives could replenish its water supply while in motion using track pans, long troughs filled with water and a retractable water scooper that would be lowered. The speed of the forward motion forces the water up the scoop pipes into the tanks or tender.

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rRZx1 TIL in the 1960s you could buy a variety of monkeys from the Sears catalog as pets, each for about $50.
9Alr TIL the deepest gold mine in North America is located in Quebec, Canada. The deepest shaft of the mine reaches over 2.48 miles (4 kilometers) underground and is predicted to be able to access over 12.5 million ounces of gold.
jjER TIL that the Internet has a patron saint named Saint Isidore of Seville. He compiled the knowledge of the ancient world and made it accessible for his own and future generations around 600 AD.
e0aek TIL of a tribe of nomadic divers that have evolved larger spleens allowing them to hold their breaths for up to 13 minutes and catch fish more than 200 feet underwater
699Xw TIL about Dervla Murphy, an Irish woman who bicycled from Ireland to India in the 1960s with a budget of £64.