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Four fingers and a thumb, Ye...

Four fingers and a thumb, Yet flesh and blood I have none. What am I?

Correct answers: 48

The first user who solved this task is FC Viñas.

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Squirrels that just...

“Squirrels that just don't care anymore have been seen throwing cashews to the wind.”

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Electric street car

In 1880, Stephen D. Field of New York City was issued a U.S. patent for "propelling railway cars by electromagnetism" (No. 229,991). When he first used it on a street car in an electric street car in 1874, his inntion was the first electric streetcar to run successfully with current generated by a stationary dynamo. The current was conveyed by one of the rails, via a metal wheel to the onboard motor, and returned through a second metal wheel to the other rail. Field first filed for a caveat on 21 May 1879, and when issued, the patent protected his claim for this system of supplying electric power through the rails and to the motor.

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