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Chess Knight Move

Find the country and its capital city, using the move of a chess knight. First letter is E. Length of words in solution: 7,7.

Correct answers: 26

The first user who solved this task is Manguexa Wagle.

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A friend tried to ma...

“A friend tried to make me say animal puns today but I thought they were boaring.”

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Telephone exchange

In 1891, Almon B. Strowger was issued a U.S. patent for his electromechanical switch to automate a telephone exchange (No. 447,918). Strowger did not invent the idea of automatic switching (it was first invented in 1879 by Connolly and McTigthe) but Strowger was the first to put it to effective use. His selector used electromagnets and pawls to move a wiper (with contacts on the end) vertically and around a bank of many other contacts, able to make a connection with any one of them. Strowger formed his company, Strowger Automatic Telephone Exchange, in Oct 1891.

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