MATH PUZZLE: Can you replace...
[3739] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 84 - The first user who solved this task is Djordje Timotijevic
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 84
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Actuary vs. Mafia

What's the difference between an insurance company actuary and a mafia actuary?
An insurance company actuary can tell you how many people will die this year.
A mafia actuary can name them.

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Frederick George Donnan

Born 5 Sep 1870; died 16 Dec 1956 at age 86.British chemist, born in Ceylon, whose research contributed to the development of colloid chemistry. He is remembered for his investigation of the Donnan Effect (1911) which advanced the understanding of the living cell. This is the effect of a semi-permeable membrane between two electrolytes and the electrical potential thereby produced. In other work with soap solutions, he related the efficiency of hydroxyl ions in the emulsification of oils to the formation of soaps on the surface of the drops. In wartime, he worked on the industrial-scale synthesis of ammonia and nitric acid. He was blind in one eye.«
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