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Calculate the number 5084

NUMBERMANIA: Calculate the number 5084 using numbers [3, 8, 3, 9, 38, 644] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 29

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #numbermania

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Pete Lee: Making Love in a Car Wash

I was reading this article the other day, and it said, The perfect way to spice up your love life is to make love in a car wash. Let me tell you guys from experience -- no, it is not. Its also the perfect way to ruin a church fundraiser.

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Johan August Brinell

Died 17 Nov 1925 at age 75 (born 21 Nov 1849).Swedish metallurgist who devised the Brinell hardness test, a rapid, nondestructive means of determining the hardness of metals. Brinell studied many aspects of iron and its production. Brinell´s important work on transformations in steel during heating and cooling. His discoveries about the control of the carbon containing phases is the present basis for the knowledge about properties of steel. The Brinell Hardness Test measures the relative hardness of metals and alloys, by forcing a 10mm hard steel ball into a test piece with a 3000kg load for 30 seconds and measuring the surface area of the resulting indentation. The load is reduced to 500kg for very soft materials and the steel ball is replaced with tungsten carbide for very hard materials.

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