Calculate the number 2810
[7716] Calculate the number 2810 - NUMBERMANIA: Calculate the number 2810 using numbers [4, 6, 2, 4, 33, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 2
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Calculate the number 2810

NUMBERMANIA: Calculate the number 2810 using numbers [4, 6, 2, 4, 33, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
#brainteasers #math #numbermania
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A prisoner in jail receives a ...

A prisoner in jail receives a letter from his wife: "Dear Husband, I have decided to plant some lettuce in the back garden. When is the best time to plant them?"

The prisoner, knowing that the prison guards read all mail, replied in a letter: "Dear Wife, whatever you do, do not touch the back garden. That is where I hid all the money."

A week or so later, he received another letter from his wife: "Dear Husband, You wouldn't believe what happened, some men came with shovels to the house, and dug up all the back garden."

The prisoner wrote another letter back: "Dear wife, now is the best time to plant the lettuce."
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Infrared photographs

In 1931, the first U.S.short-exposure infrared photograph taken of a large group of people in apparently total darkness was taken in Rochester, NY at the Eastman Kodak Research Laboratories. They were in a room that was flooded with invisible infrared light (waves 700 to 900 nanometers long, beyond the red end of the visible spectrum). A group of 50 people visiting the laboratory was photographed on a new photographic emulsion sensitive to infrared. Since then, scientists have made use of infrared photography in medical applications and aerial photography. Since plant chlorophyll reflects infrared rays more intensely than other green materials, infrared photos yield a precise indication of where vegetation is present on the ground.
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