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Calculate the number 3424

NUMBERMANIA: Calculate the number 3424 using numbers [1, 8, 7, 2, 55, 571] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Which one picked it up?

Just before Christmas, an honest politician, a generous lawyer and Santa Claus were riding in the elevator of a very posh hotel.

Just before the doors opened they all noticed a $20 bill lying on the floor. Which one picked it up?

Santa of course, because the other two don't exist!

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Kurt Alder

Died 20 Jun 1958 at age 55 (born 10 Jul 1902).German chemist was the corecipient (with Otto Diels) of the Nobel Prize for Chemistry in 1950 for their development of the Diels-Alder reaction (1928), or diene synthesis, a widely used method of synthesizing cyclic organic compounds. In this type of reaction, a compound containing two double bonds separated by a single bond (i.e. a conjugated diene) adds to a suitable compound containing one double bond (dienophile) to give a ring compound. In the dienophile, the double bond must have a carbonyl group on each side. The reaction proceeds in the mildest conditions, is of general application, and hence of great utility in synthesis. It is used in the synthesis of natural products, such as sterols, vitamin K, cantharides, and synthetic polymers.

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