Calculate the number 1933
[6788] Calculate the number 1933 - NUMBERMANIA: Calculate the number 1933 using numbers [9, 4, 7, 5, 69, 509] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 13 - The first user who solved this task is Nasrin 24 T
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Calculate the number 1933

NUMBERMANIA: Calculate the number 1933 using numbers [9, 4, 7, 5, 69, 509] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
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Who Should Have The Toy?

The father of five children had won a toy at a raffle.

He called his kids together to ask which one should have the present.


"Who is the most obedient?" he asked. "Who never talks back to mother? Who does everything she says?"

Five small voices answered in unison. "Okay, dad, you get the toy."

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Raoul Pierre Pictet

Born 4 Apr 1846; died 27 Jul 1929 at age 83.Swiss chemist who was a pioneer of cryogenics. His original interest in the artificial production of ice (for refrigeration) led him to study the production of extremely low temperatures. He produced liquid oxygen, working independently of the French scientist, Louis Paul Cailletet, who is also credited with its discovery in 1877. However, Pictet used more elaborate equipment and was able to produce greater volumes of liquified gases. Pictet used a cascade method, in which he evaporated liquid sulfur dioxide to liquefy carbon dioxide, which in turn was allowed to evaporate and to cool oxygen to below its critical temperature. The oxygen could then be liquefied by pressure. This was also easier to apply to other gases.
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