How Do Kangaroos Hop?
How Do Kangaroos Hop? The large, stretchy tendons in a kangaroo’s hind legs act like giant springs. As these tendons strain and contract, they generate most of the...
Read MoreHow Do Kangaroos Hop? The large, stretchy tendons in a kangaroo’s hind legs act like giant springs. As these tendons strain and contract, they generate most of the...
Read MoreHow Does an Elevator Work? Modern elevators hang from strong steel cables and work just like a pulley. Powerful electric motors at the top of the elevator shaft turn a...
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