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Calculate the number 1576

NUMBERMANIA: Calculate the number 1576 using numbers [5, 7, 2, 1, 36, 221] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 22

The first user who solved this task is Thinh Ddh.

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Neal Brennan: Shut It Down

If you work in porn, I dont know if you and your coworkers know this, but we have enough porn. You dont have to keep making it. You did a great job, we appreciate your service, but you can shut it down.

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Anton Flettner

Born 1 Nov 1885; died 29 Dec 1961 at age 76.German inventor who produced a practical helicopter for the German navy (1940). He also developed a device that allowed airplane pilots to raise or lower a plane's nose for better control. It evolved into a mechanism called the Flettner trim-tab control which is still used on all airplanes. He designed a rotor ship (1924) on which he replaced sails with unique propulsion - two 50-ft cylinders, electrically rotated, mounted vertically on the deck. A transatlantic voyage was accomplished using the aerodynamic power of the Magnus Effect which builds pressure behind a rotating cylinder. After WW II, he went to the U.S., and conducted helicopter research for the U.S. Army. He also invented a windmill and the Flettner marine rudder.«

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