Find number abc
[6144] Find number abc - If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 25 - The first user who solved this task is Nasrin 24 T
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Find number abc

If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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The Fourth of July was coming...

The Fourth of July was coming up, and the nursery school teacher took the opportunity to tell her class about patriotism. "We live in a great country," she said. "One of the things we should be happy about is that, in this country, we are all free."
One little boy came walking up to her from the back of the room. He stood with his hands on his hips and said, "I'm not free. I'm four."
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Robert Stirling

Born 25 Oct 1790; died 6 Jun 1878 at age 87.Scottish minister and inventor of the Stirling Cycle engine. Its principles were included in his first British patent, No. 4081 (1816), which he called the heat economiser as he described methods of regenerating heat from exhaust back into input gases. He continued to refine his idea for years in his home workshop during his spare time. The first practical Stirling engine generated about 2 horsepower, spending two years pumping water out of a quarry. By 1843, he had a modified steam engine producing 37 horsepower. He was assisted in preparing further patents by his brother James, a mechanical engineer who managed a foundry where the engine was manufactured. Robert also made scientific instruments.«
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