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Небојша Јевтовић

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last 3 solved tasks
NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
NUMBERMANIA: Calculate the number 866 using numbers [9, 7, 8, 9, 46, 482] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
NUMBERMANIA: Calculate the number 1864 using numbers [7, 2, 1, 3, 33, 859] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Transatlantic cable success

In 1866, Cyrus W. Field finally succeeded, after two failures, in laying the first underwater telegraph cable 1,686 miles long across the Atlantic Ocean between North America and Europe. Massachusetts merchant and financier Cyrus W. Field first proposed laying a 2,000-mile copper cable along the ocean bottom from Newfoundland to Ireland in 1854, but the first three attempts ended in broken cables and failure. Field's persistence finally paid off in July 1866, when the Great Eastern, the largest ship then afloat, successfully laid the cable along the level, sandy bottom of the North Atlantic.[Image: Commemorative print Eighth Wonder of the World. (compressed to thumbnail width)]

Double negative

A linguistics professor was lecturing to his class one day. "In English," he said, "a double negative forms a positive. In some languages though, such as Russian, a double negative is still a negative."

"However," he pointed out, "there is no language wherein a double positive can form a negative."

A voice from the back of the room piped up, "Yeah. Right."

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