Calculate the number 320
[5947] Calculate the number 320 - NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 16 - The first user who solved this task is Nílton Corrêa De Sousa
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Calculate the number 320

NUMBERMANIA: Calculate the number 320 using numbers [8, 5, 7, 5, 57, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 16
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #numbermania
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Two Eagles, an old Indian chie...

Two Eagles, an old Indian chief, sat in his hut on the reservation smoking a ceremonial pipe and eying two US government officials sent to interview him.
One US official said to Chief Two Eagles, "You have observed the white man for 90 years. You've seen his wars and his technological advances. You've seen his progress, and the damage he has done."
The Chief nodded in agreement.
The official continued, "Considering all these events, in your opinion, where did the white man go wrong?"
The Chief stared at the two government officials for over a minute...
"When white man found the land, Indians were running it. No taxes, No debt. Plenty buffalo. Plenty beaver. Women did all the work. Medicine man free. Indian man spent all day hunting and fishing, all night having sex."
Then the chief leaned back and smiled before he added, "Only white man dumb enough to think he could improve system like that."
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Patents

In 1873, the first U.S. patent for a gold crown was issued: to Dr. John B. Beers of San Francisco, California on "artificial crowns for teeth" (No. 144,182). His technique was to prepare a hollow metal crown which would be slipped over the projecting portion of the old tooth and secured to it so that it would continue to function for chewing as before, while also preventing further decay. A gold screw was mounted in the old tooth, the hollow crown slipped over it and cemented with oxychloride of zinc. This replaced the old method of restoring decayed or broken teeth by condensing gold upon it with a hammer until it had taken the desired shape - which difficult process was costly, tedious, and frequently resulted in inflammation from the hammering on the jaw.
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