Calculate the number 7841
[7733] Calculate the number 7841 - NUMBERMANIA: Calculate the number 7841 using numbers [6, 7, 5, 9, 44, 517] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 3
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Calculate the number 7841

NUMBERMANIA: Calculate the number 7841 using numbers [6, 7, 5, 9, 44, 517] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
#brainteasers #math #numbermania
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Always choose a memorable password!

A lady helps her husband install a new computer.
Once it is completed, she tells him to select a password, selecting a word that he'll always remember.
As the computer asks him to enter it, he looks at his wife and with a macho gesture and a wink in his eye, he types: .....  mypenis.
As he hits 'enter', to validate the selection, his wife collapses with laughter and rolls on the floor in hysteria!!
The computer had replied: TOO SHORT- ACCESS DENIED!

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Xerography

In 1938, xerography was demonstrated by Chester F. Carlson. With his assistant, Otto Kornei, Carlson used a sulphur coating on a zinc plate, vigorously rubbed with a handkerchief to apply an electrostatic charge. A glass slide was prepared using India ink to write "10-22-38 ASTORIA," then laid on the sulphur surface in a darkened room. After illuminating them with a bright incandescent lamp for a few seconds, the slide was removed. When lycopodium powder was sprinkled on the sulphur surface and blown off, there remained a near-perfect image of the writing. Permanent copies were made by transferring the powder images to wax paper and heating the sheets to melt the wax. Xerox is a term coming from "xerography" which means dry writing and is a trademark.
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