Calculate the number 2856
[317] Calculate the number 2856 - NUMBERMANIA: Calculate the number 2856 using numbers [8, 8, 7, 8, 71, 374] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 30 - The first user who solved this task is Sanja Šabović
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Calculate the number 2856

NUMBERMANIA: Calculate the number 2856 using numbers [8, 8, 7, 8, 71, 374] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 30
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Grandma's Revenge

When my three-year-old son opened the birthday gift from his grandmother, he discovered a water pistol. He squealed with delight and headed for the nearest sink. I was not so pleased. I turned to Mom and said, "I'm surprised at you. Don't you remember how we used to drive you crazy with water guns?"

Mom smiled and then replied....."I remember."

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Vulcanized rubber

In 1844, Charles Goodyear received another patent (U.S. No. 3,633) for "An Improvement in India-Rubber Fabrics." This way of processing india-rubber added white lead to the sulphur and heating method he patented 24 Feb 1839. He had spent several years, since going bankrupt in hardware, trying to improve natural rubber, which became sticky in summer heat and brittle in the winter. He had experimented to coat it with a powder to make it less sticky when he accidentally dropped a mixture of natural rubber and powdered sulphur on a hot stove in Woburn, Massachusetts. The heat completed the process. Despite the value of his inventions, he died in poverty in 1860. (His earliest patent, 17 Jun 1837 used metallic solutions.)
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