Determine the value of the number BCDC
[638] Determine the value of the number BCDC - Determine the value of the number BCDC - #brainteasers #math - Correct Answers: 59 - The first user who solved this task is Djordje Timotijevic
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Determine the value of the number BCDC

Determine the value of the number BCDC
Correct answers: 59
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Have you been drinking?

A policeman pulls a man over for speeding and asks him to get out of the car. After looking the man over he says, "Sir, I couldn't help but notice your eyes are bloodshot. Have you been drinking?"

The man gets really indignant and says, "Officer, I couldn't help but notice your eyes are glazed. Have you been eating doughnuts?"

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Earliest U.S. celestial photograph

In 1839, John William Draper took a daguerreotype of the moon, the first celestial photograph made in the U.S. He exposed the plate for 20 minutes using a 5-inch telescope and produced an image one inch in diameter. Draper was a professor of chemistry at New York University, New York City. His research in the effect of light upon chemicals had led him to take up photography. He also made his first satisfactory photographic portrait in 1839. A picture he took (1840) of his sister is the oldest surviving photographic portrait. Draper made important scientific contributions in fields of radiant energy, photochemistry, photography, and electric telegraphy. He also anticipated development of spectrum analysis.
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