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TIL the blades in a Rolls Royce jet engine are so technologically advanced and intricately designed that each blade is roughly worth the price of an average family car

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1aXv8 TIL that both a human and a dog's blood pressure decrease while the human pets the dog.
JYV6v TIL 10 Downing Street is not the residence of the UK Prime Minister, but of the First Lord of the Treasury, an office which is held concurrently with that of Prime Minister.
OAwg TIL that there is a Russian cult that worships the character Gadget from the TV show Chip ‘n Dale Rescue Rangers
oBZjr TIL Brent Gretzky, along with his brother Wayne, hold the record for most NHL points scored by siblings with 2,861. (Brent has 4).
nZAW TIL The high-pitched sounds housecats make to solicit food may mimic the cries of a hungry human infant, making them particularly hard for humans to ignore