Calculate the number 393
[152] Calculate the number 393 - NUMBERMANIA: Calculate the number 393 using numbers [8, 2, 3, 6, 20, 25] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 44 - The first user who solved this task is Sanja Šabović
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Calculate the number 393

NUMBERMANIA: Calculate the number 393 using numbers [8, 2, 3, 6, 20, 25] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 44
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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An old indian, Charlie Two Shi...

An old indian, Charlie Two Shirts, came rowing onto the dock on a lake. He tied his boat up and unloaded his fishing box that was full of fish.
The Game warden was standing there and said: "Charlie there aren't that many fish in this lake. How did you get those?"
Charlie said: "Oh it is an old Indian method. Come with me and I show you!"
The Game Warden got in the boat and Charlie rowed out to a spot. He opened his tackle box and got out a weighted stick of dynamite, lit the fuse and tossed it overboard. Moments later there was a muffled explosion from below and several fish came floating up.
The Game Warden said: "Charlie it's illegal to use dynamite for fishing. I can arrest your for that!"
Charlie reached into his tackle box again and pulled out another stick of dynamite. He lit the fuse and handed it to the Game Warden and said: "Are you gonna fish...or talk?"
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Tungsten filaments

In 1913, Dr William David Coolidge patented (U.S. No. 1,082,933) a method for making ductile tunsten for the purpose of making filaments for electric lamps. When Coolidge joined the General Electric Research Laboratory (1905), he was given the task of replacing the fragile carbon filaments in electric light bulbs with tungsten filaments, although tungsten was difficult to work. He developed a way to superheat the metal tunsten in order to draw it out into the fine threads used for lamp filaments. Coolidge then improved the X-ray tube by using a heated tungsten filament cathode in vacuum producing electrons, instead of residual gas molecules in the tube. This permitted higher operating voltages, higher energy X rays and the treatment of deeper-seated tumors.
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