Find the right combination
[7710] Find the right combination - 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: 2
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Find the right combination

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: 2
#brainteasers #mastermind
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Problem With Gas

A little old lady goes to the doctor and says, "Doctor I have this problem with gas, but it really doesn't bother me too much because they never smell and are always silent. As a matter of fact, I've farted at least 20 times since I've been here in your office."
The doctor says, "I see, take these pills and come back to see me next week.
The next week the lady goes back to his office. "Doctor," she says, "I don't know what you gave me, but now my farts, although still silent, stink terribly!"
The doctor says, "Good, Now that we've cleared up your sinuses, let's work on your hearing."

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Rock drill patent

In 1851, James W. Fowle was issued he first U.S. Patent for a direct-action percussion rock-drill (No. 7,972). He had filed a caveat in 1849, about two months after Joseph J. Couch received a patent for the first steam-powered percussion rock-drill. In Couch's design, the drill bar was not fastened to the piston head, but at each stroke was alternately caught, drawn back and thrown against the rock, like a lance. Both employed steam power. At first, Couch and Fowle had collaborated, but Fowle separated to pursue his own design, which is the real precursor of the drills developed in the following decades. To employ the direct action on the drill-bar Fowle had to solve the problem of how to avoid damage to the piston cylinder. He used compressed air to drive his“S” shaped drill.«
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