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A nineteenth century handbook drew 507 ways to turn one motion into another. Many of them now move. Click a thumbnail and watch a ratchet do its thing.
★Banging your head against a wall for one hour burns 150 calories.★Sea otters hold hands while sleeping so they don't drift apart.★Crows can recognize human faces and hold grudges for years.★A jiffy is an actual unit of time: 1/100th of a second.★Cashews grow on the outside of a fruit, not inside a shell.★Cotton candy was co-invented by a dentist.★Google processes more than 8.5 billion searches every single day.★More than half of all people alive today have never made a phone call.★Peanuts aren't nuts, they are legumes.★Chewing gum while you chop onions helps keep you from crying.★A shrimp's heart is located in its head.★The first item ever sold on eBay was a broken laser pointer.★The moon has moonquakes.★A newborn kangaroo is about the size of a jellybean.★Voice actors for Mickey and Minnie Mouse got married in real life.★You can hear a blue whale's heartbeat from more than two miles away.★The Hawaiian alphabet has only 13 letters.★A group of owls is called a parliament.★A flock of crows is known as a murder.★A group of flamingos is called a 'flamboyance'.
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