Calculate the number 320
[5947] Calculate the number 320 - NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 16 - The first user who solved this task is Nílton Corrêa De Sousa
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Calculate the number 320

NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 16
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #numbermania
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The Loss Of Engines

Two blondes were flying to Miami from Cleveland. Fifteen minutes into the flight, the captain announced "One of the engines has failed and the flight will be an hour longer. But don't worry we have three engines left".
Thirty minutes later, the captain announced "One more engine has failed and the flight will be two hours longer. But don't worry we have two engines left".
An hour later the capain announced "One more engine has failed and the flight will be three hours longer. But don't worry we have one engine left".
One blonde looked at the other the other blonde and said "If we lose one more engine, we'll be up here all day"
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Joseph von Fraunhofer

Born 6 Mar 1787; died 7 Jun 1826 at age 39.German physicist who was the first to study the dark lines in the solar spectrum, which were seen by Wollaston in 1802, but are called Fraunhofer lines. Fraunhofer was not able to explain them, but measured 576 lines. Over 25,000 have now been found in the solar spectrum. These are caused by selective absorption of those wavelengths by atoms of elements, and their relative positions are the same whether the light is produced by heated metals in the laboratory or seen from those gaseous elements in the sun or viewed from other heavenly bodies. Before other scientists so widely adopted the technique, he used a diffraction grating instead of a prism to disperse the spectrum. He also invented a heliometer.«
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