Which is a winning combination of digits?
[7187] Which is a winning combination of digits? - The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. - #brainteasers #mastermind - Correct Answers: 8
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Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
#brainteasers #mastermind
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Bad news or terrible news

This guy was sitting in his attorney's office. "Do you want the bad news first or the terrible news?" the lawyer said.

"Give me the bad news first."

"Your wife found a picture worth a half-million dollars."

"That's the bad news?" asked the man incredulously. "I can't wait to hear the terrible news."

"The terrible news is that it's of you and your secretary."

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First stainless steel cast

In 1913, the first true stainless steel was cast in Sheffield, England. It was a steel alloy that contained 0.24% carbon and 12.8% chromium. English metallurgist, Harry Brearley was developing a more erosion-resistant steel for rifle barrels. In order to examine the grain structure of the steel he needed to etch samples with acid before examining them under the microscope. The etching reagents he used were based on nitric acid, and he found that this new steel strongly resisted chemical attack. He then exposed samples to vinegar and other food acids such as lemon juice and found the same result. Brearley realized that this new steel could also revolutionise the cutlery industry.
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