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Calculate the number 407

NUMBERMANIA: Calculate the number 407 using numbers [4, 3, 4, 8, 36, 299] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 27

The first user who solved this task is Eugenio G. F. de Kereki.

#brainteasers #math #numbermania

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Dwayne Kennedy: Christmas Shopping

I tried to go Christmas shopping last year, but I didnt have no money. I just went window-shopping with a brick.

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William Ferrel

Died 18 Sep 1891 at age 74 (born 29 Jan 1817).American meteorologist who was an important contributor to the understanding of oceanic and atmospheric circulation. He was able to show the interrelation of the various forces upon the Earth's surface, such as gravity, rotation and friction. Ferrel was first to mathematically demonstrate the influence of the Earth's rotation on the presence of high and low pressure belts encircling the Earth, and on the deflection of air and water currents. The latter was a derivative of the effect theorized by Gustave de Coriolis in 1835, and became known as Ferrel's law. Ferrel also considered the effect that the gravitational pull of the Sun and Moon might have on the Earth's rotation and concluded (without proof, but correctly) that the Earth's axis wobbles a bit.

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