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Calculate 77+66+68

FUNNY MATH: Calculate 77+66+68 :)

Correct answers: 90

The first user who solved this task is Sanja Šabović.

#brainteasers #math

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After spending all day Sunday

After spending all day Sunday watching football on television, a man fell asleep and spent the night in the chair.
His wife woke him in the morning. "It's twenty to seven," she called.
"Blimey, who scored twenty?"

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Donati's comet

In 1858, Donati's comet (discovered by Giovanni Donati, 1826-1873) became the first to be photographed. It was a bright comet that developed a spectacular curved dust tail with two thin gas tails, captured by an English commercial photographer, William Usherwood, using a portrait camera at a low focal ratio. At Harvard, W.C. Bond, attempted an image on a collodion plate the following night, but the comet shows only faintly and no tail can be seen. Bond was subsequently able to evaluate the image on Usherwood's plate. The earliest celestial daguerreotypes were made in 1850-51, though after the Donati comet, no further comet photography took place until 1881, when P.J.C. Janssen and J.W. Draper took the first generally recognized photographs of a comet.*

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