Which is a winning combination of digits?
[5677] 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: 32 - The first user who solved this task is Djordje Timotijevic
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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: 32
The first user who solved this task is Djordje Timotijevic.
#brainteasers #mastermind
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Small wooden ball at barbershop

A man enters a barbershop for a shave. While the barber is foaming him up, he mentions the problems he has getting a close shave around the cheeks.

"I have just the thing," says the barber taking a small wooden ball from a nearby drawer. "Just place this between your cheek and gum."

The client places the ball in his mouth and the barber proceeds with the closest shave the man has ever experienced. After a few strokes, the client asks in garbled speech, "And what if I swallow it?"

"No problem," says the barber. "Just bring it back tomorrow like everyone else does."

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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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