Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 336
The first user who solved this task is Sanja Šabović.
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Nuclear submarineIn 1959, the first submarine with two nuclear reactors was completed. The USS Triton had two water-cooled General Electric nuclear reactors to power electricity generators which powered the propellers. The Triton was 447-ft long, 37-ft wide, manned by 148 officers and crew and had a cruising range of 110,000 miles. After its launch on 19 Aug 1958, The first U.S. atomic powered submarine had been completed four years earlier, on 22 Apr 1955. |