Calculate the number 920
[7591] Calculate the number 920 - NUMBERMANIA: Calculate the number 920 using numbers [4, 3, 7, 7, 28, 834] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 920

NUMBERMANIA: Calculate the number 920 using numbers [4, 3, 7, 7, 28, 834] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Praying and Sleeping

Two men arrive at the Pearly Gates at about the same time, both wanting to know if they will be admitted to heaven. St. Peter asks the first man his name, where he is from, and what he did in life.
The man answers that he is John Smith and that he was a taxi driver in New York City.
St. Peter looks through his book, then gives the man a luxurious silken robe and a golden staff, and bids him welcome into heaven for his eternal reward.
St. Peter then asks the second man the same questions. He replies that his name is Thomas O'Malley, and that he was a Catholic priest in Chicago. St. Peter looks in his book, then gives him a cotton robe and a wooden staff, and bids him to enter into heaven for his eternal reward.
Father O'Malley says, Wait a minute! Why did that taxi driver get a silken robe and golden staff while I, a Catholic Priest and a man of God, got a cotton robe and wooden staff?
St. Peter told him that the rewards in heaven are based on results, and while Father O'Malley preached, people slept, but while John Smith drove, people prayed!

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Comet

In 1864, Giovanni Batista Donati (1827-73) made the first spectroscopic observations of a comet tail (from the small comet, Tempel, 1864 II). At a distance from the Sun the spectrum of a comet is identical to that of the Sun, and its visibility is due only to reflected sunlight. Donati showed that comet tail formed close to the Sun contains luminous gas. In the spectrum of light from the comet tail, Donati saw three absorption lines bands superimposed on a continuous spectrum, which he named alpha, beta and gamma, and are now known as the Swan bands. These bands were also seen in a comet tail viewed by Pietro Secchi in 1866. Sir William Huggins (1868) identified that these were due to the presence of carbon (molecular carbon, C2).[Image: Comet tail of Comet West 1976 VI, computer generated false colour image.]
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