Which is a winning combination of digits?
[7177] 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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I recently had a visitor from...

I recently had a visitor from the state of Texas. For three days all I heard from him was "In Texas we have the best this, the largest that, the fastest that," etc. It eventually became very annoying.
Being from Niagra Falls, I thought I could outdo him by showing him the "Mighty Niagara", knowing there was nothing in Texas that could compare to this "Wonder of Water and Power".
While standing at the brink watching millions of gallons of water rushing over, I noticed the look of awe in his eyes. It was then I asked him: "Do you have anything like this in Texas?"
He waited a moment before he answered: "No, but we have a plumber that could fix it."
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Steam-power demonstrated

In 1699, Thomas Savery, at the weekly meeting at Gresham-College, demonstrated before the Royal Society a small model of his invention - a steam-powered water pump - which he patented 25 Jul 1698, "for raiseing water and occasioning motion to all sorts of mill-work by the impellant force of fire; which will be of great use and advantage for drayning mines, serveing townes with water, and for the working of all sorts of mills where they have not the benefit of water nor constant windes." Steam in a vessel condensed by an external spray of cold water caused a partial vacuum to lift water into the vessel from a lower sump, which was then forced further upward when more high-pressure steam entered.«[Ref: Philosphical Transactions of the Royal Society, London, vol. 21, p.228.]
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