Replace the question mark with a number
[3355] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 773 - The first user who solved this task is Sanja Šabović
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 773
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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International Day for Monuments and Sites/World Heritage Day jokes

Today is International Day for Monuments and Sites (World Heritage Day)! Find a joke about it!

Why the great pyramids are in Egypt?
Because they were too heavy to carry of to the British museum.

Why was Cleopatra angry?
She was on her pyramid.

I was offered a job building Egyptian tombs
Turned out to be a pyramid scheme

I'm surprised the tower of Pisa hasn't fallen over during the pandemic
Without all those tourists helping hold it up.

Two Americans are visiting Rome Colosseum
"Look at it. How huge and majestic it is."
"Just imagine how great it'll be when they finish building it."

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Hermann von Helmholtz

Born 31 Aug 1821; died 8 Sep 1894 at age 73. Hermann Ludwig Ferdinand von Helmholtz was a German physiologist and physicist who contribed much to physiology, optics, electrodynamics, mathematics, and meteorology, including the law of the conservation of energy (1847). He also developed thermodynamics, in particular introducing concept of free energy. In 1850, he measured the speed of a nerve impulse and, in 1851, invented the ophthalmoscope. He discovered the function of the cochlea in the inner ear and developed Thomas Young's theory of colour vision (published 1856). His study of muscle action led him to formulate a much more accurate theory concerning the conservation of energy than earlier proposed by Robert Mayer and James Joule.
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