Calculate the number 2254
[6000] Calculate the number 2254 - NUMBERMANIA: Calculate the number 2254 using numbers [1, 5, 1, 7, 85, 470] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 13 - The first user who solved this task is Nílton Corrêa De Sousa
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Calculate the number 2254

NUMBERMANIA: Calculate the number 2254 using numbers [1, 5, 1, 7, 85, 470] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #numbermania
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I have low self-esteem

I have low self-esteem; when we were in bed together, I would fantasise that I was someone else.

Richard Lewis (June 29 1947-)

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Sir William Perkin

Born 12 Mar 1838; died 14 Jul 1907 at age 69. Sir William Henry Perkin was an English chemist and inventor who, in his youth, was enthused about chemistry by attending public lectures by Michael Faraday. While experimenting to synthesize quinine from a coal tar chemical, Perkins mixed aniline and sodium dichromate and unexpectedly found a dense colour - he named as aniline purple - which he extracted with alcohol. He had discovered the first artificial dye. Textiles of his era were coloured from natural sources; his was a valuable alternative. At the age of 18, he patented the dye. His father invested in his efforts to manufacture the dye. It went on sale in 1857, and it became popular in France. By age 23 he was fathering a new synthetic organic chemical industry. He continued synthesis research. He was knighted in 1906.
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