MAGIC SQUARE: Calculate A*B-C
[4981] MAGIC SQUARE: Calculate A*B-C - The aim is to place the some numbers from the list (1, 3, 5, 7, 10, 12, 16, 21, 25, 30, 54) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C. - #brainteasers #math #magicsquare - Correct Answers: 22 - The first user who solved this task is Djordje Timotijevic
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (1, 3, 5, 7, 10, 12, 16, 21, 25, 30, 54) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #magicsquare
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I wish people would stop making fun of fat people

I wish people would stop making fun of fat people – they have enough sh-t on their plates.

Eddie Murphy (April 3 1961-)

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Crystal rectifier

In 1874, a paper by Ferdinand Braun (1850-1918) was published in the Annalen der Physik und Chemie describing his discovery of the electrical rectifier effect. He observed that certain crystals of metal sulphides have a larger or smaller resistance to an electric current, depending on its direction of flow. He used a galena crystal, a semiconductor material composed of lead sulfide. He found the rectifying effect especially true if at least one of the electrodes was a pointed wire. Thus, he had discovered the point-contact rectifier effect, the first semiconductor device. This effect wasn't used until over 30 years later in the form of the “cat's whisker”crystal radio detector which ultimately led to the point-contact transistor first produced in 1948.
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