What is abcd?
[160] What is abcd? - Author: Nebojsa Jevtovic - #brainteasers #math - Correct Answers: 100 - The first user who solved this task is Djordje Timotijevic
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What is abcd?

Author: Nebojsa Jevtovic
Correct answers: 100
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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A man walks pass a beggar on t...

A man walks pass a beggar on the corner of the street where he works. The beggar holds out his one hand and the man drops a coin into his hand.
One day the man walks pass the beggar again and notices the beggar is holding hold out both his hands. He asks, "Why are you holding out both of your hands?"
The beggar replied, "You see sir, business is going so well I decided to open another branch."
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August Wilhelm von Hofmann

Died 2 May 1892 at age 74 (born 8 Apr 1818). German chemist whose research on aniline, with that of his former student Sir William Henry Perkin, helped lay the basis of the aniline-dye industry. He was the first to prepare rosaniline and its derivatives and researched many other compounds, including the discovery formaldehyde. In the field of organic chemistry, Hofmann is best known for his studies of the organic derivatives of ammonia and phosphine and for his subsequent discovery of the Hofmann degradation reaction. He also developed the Hofmann method of finding the vapor densities, and from these the molecular weights, of liquids. He also helped to popularize the concept of valence (the word comes from his term quantivalence). He founded the German Chemical Society.
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