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Decrypt multiplication and determine the value of the number ABCD

Correct answers: 33

The first user who solved this task is Sanja Šabović.

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Come On, Ride the Train

Q: If an electric train is heading north, which way would the steam be coming out?
A: There wouldn't be any. It's an electric train.

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Ronald G.W. Norrish

Born 9 Nov 1897; died 7 Jun 1978 at age 80.Ronald George Wreyford Norrish was a British chemist who shared the 1967 Nobel Prize for Chemistry with fellow Englishman Sir George Porter and German Manfred Eigen for their studies of very fast chemical reactions. From 1949-65 he collaborated with his former pupil George Porter in the development of flash photolysis and kinetic spectroscopy for the investigation of very fast reactions. Norrish also made a significant contribution to chemistry when he corrected Draper's law. In the mid-19th century John Draper proposed that the amount of photochemical change is proportional to the intensity of the light multiplied by the time for which it acts. Norrish showed that the rate was in fact proportional to the square root of the light intensity.

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