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What asks but never answers?

Correct answers: 80

The first user who solved this task is Djordje Timotijevic.

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Math Wiz

After writing a simple equation on the board the teacher asked if anyone could solve the problem.
Little Johnny walked up to the board, erased it and said, “Problem Solved.”

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Keel laid for first nuclear submarine, U.S.S. Nautilus

In 1952, the keel was laid for the first American nuclear submarine,U.S.S. Nautilus, in a ceremony attended by President Harry S. Trumann. It was built by the Electric Boat Company division of General Dynamics Corp. at Groton, Conn., under the supervision of Captain Hyman George Rickover. Its liquid-cooled atomic reactor provided power for steam turbines. The submarine was launched in on 21 Jan 1954, and commisioned later that year on 30 Sep 1954. It was tested under nuclear power on 17 Jan 1955 and completed 22 Apr 1955.

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