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Calculate the number 931

NUMBERMANIA: Calculate the number 931 using numbers [5, 4, 2, 4, 42, 777] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 11

The first user who solved this task is Nasrin 24 T.

#brainteasers #math #numbermania

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Two men in one night

My sister was with two men in one night. She could hardly walk after that. Can you imagine? Two dinners!

Sarah Silverman (December 2 1970-)

Picture: Reuters

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Shin-ichiro Tomonaga

Born 31 Mar 1906; died 8 Jul 1979 at age 73.Japanese physicist whosharedthe Nobel Prize for Physics in 1965 (with Richard P. Feynman and Julian S. Schwinger of the U.S.) for independently developing basic principles of quantum electrodynamics. He was one of the first to apply quantum theory to subatomic particles with very high energies. Tomonaga began with an analysis of intermediate coupling - the idea that interactions between two particles take place through the exchange of a third (virtual particle), like one ship affecting another by firing a cannonball. He used this concept to develop a quantum field theory (1941-43) that was consistent with the theory of special relativity. WW II delayed news of his work. Meanwhile, Feynman and Schwinger published their own independent solutions.

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