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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 565

The first user who solved this task is Sanja Šabović.

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Daniel Tosh: Blaming the Amish

Am I the only person who blames global warming entirely on the Amish? Are they not a constant reminder of how awful life would be without all this great technology? Every time I want to cut back and conserve on natural resources, I just look at the Amish and I'm like, 'F**k that.'

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Sir John Cockcroft

Died 18 Sep 1967 at age 70 (born 27 May 1897).Sir John Douglas Cockcroft was a British physicist, who shared (with Ernest T.S. Walton of Ireland) the 1951 Nobel Prize for Physics for pioneering the use of particle accelerators to study the atomic nucleus. Together, in 1929, they built an accelerator, the Cockcroft-Walton generator, that generated large numbers of particles at lower energies - the first atom-smasher. On 14 Apr 1932, they used it to disintegrate lithium atoms by bombarding them with protons, the first artificial nuclear reaction not utilizing radioactive substances. They were first to split the atom. They conducted further research on the splitting of other atoms and established the importance of accelerators as a tool for nuclear research. Their accelerator design became one of the most useful in the world's laboratories.«

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