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Rasoul Jafari

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last 3 solved tasks
MATH PUZZLE: Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?
IF 8638+7542=105 and 5589+2468=225 THEN 1357+1919=?

Max Planck

Born 23 Apr 1858; died 4 Oct 1947 at age 89. Max Karl Ernst Ludwig Planck was a German theoretical physicist who studied at Munich and Berlin, where he studied under Helmholtz, Clausius and Kirchhoff and subsequently joined the faculty. He became professor of theoretical physics (1889-1926). His work on the law of thermodynamics and the distribution of radiation from a black body led him to abandon classical Newtonian principles and introduce the quantum theory (1900), for which he was awarded the Nobel Prize for Physics in 1918. This assumes that energy is not infinitely subdivisible, but ultimately exists as discrete amounts he called quanta (Latin, “how much”). Further, the energy carried by a quantum depends in direct proportion to the frequency of its source radiation.

Waiting for love

A fellow in a bar notices a woman, always alone, come in on a fairly regular basis. After the second week, he made his move.

"No thank you." she said politely. "This may sound rather odd in this day and age, but I'm keeping myself pure until I meet the man I love."

"That must be rather difficult." the man replied.

"Oh, I don't mind too much." she said. "But, it has my husband pretty upset."

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