Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 343
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #riddles
John E. W. KeelyDied 18 Nov 1898 at age 71 (born 3 Sep 1827).John Ernst Worrell Keely was a fraudulent American inventor. In 1873 he announced that he had discovered a new physical force that, if harnessed, would produce unheard-of power. He claimed, for example, to be able to produce from a quart of water enough fuel to move a 30-car train from Philadelphia to New York City. He began construction of an engine to perform this feat and by 1874 was able to give preliminary demonstrations of his machine. He made a great show of guarding the secret of the motor he was developing to obtain power "from intermolecular vibrations of ether," and scientists and engineers scoffed at his unverified claims. |