Calculate the number 590
[7423] Calculate the number 590 - NUMBERMANIA: Calculate the number 590 using numbers [9, 1, 5, 5, 58, 531] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 3
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Calculate the number 590

NUMBERMANIA: Calculate the number 590 using numbers [9, 1, 5, 5, 58, 531] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
#brainteasers #math #numbermania
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Stiff Neck

A five year old boy comes to visit his grandparents and notices his grandfather sitting on the porch, in the rocker, wearing only a shirt, naked from the waist down. "Grandpa, whatcha' doing? You're weenie's out and everybody can see!" he exclaimed.
Grandpa looked off in the distance, not answering.
"Grandpa, whatcha' doin' sitting out here with no pants on?" he asked again.
Grandpa looked at him and said, "Son, last week I sat here with no shirt on, Just watching the cars go by.... and I got a stiff neck. This is your Grandma's idea."      

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Sir George Thomas Beilby

Born 17 Nov 1850; died 1 Aug 1924 at age 73.Scottish industrial chemist who developed (1890) the process of manufacturing potassium cyanide (widely used to extract gold from low-grade ore) by passing ammonia over a heated mixture of charcoal and potassium carbonate. Beilby entered the oil-shale industry in 1869 and greatly increased the yield of paraffin and ammonia by introducing the continuous retort. Noting the destruction of metals by ammonia at high temperatures, Beilby researched the flow of solids. He inferred that when a solid is caused to flow, as in polishing, the crystalline surface is broken down to a harder and denser layer. Although much criticized, this theory explained the hardening of metals under cold working and gave valuable stimulus to further research.
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