What will be the missing num...
[2459] What will be the missing num... - What will be the missing number? (3, 5, 13, 43, 177, ?, 5353) - #brainteasers #math #riddles - Correct Answers: 59 - The first user who solved this task is Erkain Mahajanian
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What will be the missing num...

What will be the missing number? (3, 5, 13, 43, 177, ?, 5353)
Correct answers: 59
The first user who solved this task is Erkain Mahajanian.
#brainteasers #math #riddles
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The secret of my success

Grandpa was celebrating his 100th birthday and everybody complimented him on how athletic and well-preserved he appeared.

"Gentlemen, I will tell you the secret of my success," he cackled. "I have been in the open air day after day for some 75 years now."

The celebrants were impressed and asked how he managed to keep up his rigorous fitness regime.

"Well, you see my wife and I were married 75 years ago. On our wedding night, we made a solemn pledge. Whenever we had a fight, the one who was proved wrong would go outside and take a walk."

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Eugenio Beltrami

Born 16 Nov 1835; died 18 Feb 1900 at age 64.Italian mathematician and mathematical physicist known for his concepts of non-Euclidean geometry. In 1865, he published a paper on how line elements on the surfaces of constant curvature could be represented by linear expressions. His approach offered a new representation of the geometry of constant curvature that was consistent with Euclidean theory. Beltrami studied elasticity, wave theory, optics, thermodynamics, and potential theory, and was among the first to explore the concepts of hyperspace and time as a fourth dimension. His investigations in the conduction of heat led to linear partial differential equations. Some of Beltrami's last work was on a mechanical interpretation of Maxwell's equations.
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