MATH PUZZLE: Can you replace...
[3974] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 113 - The first user who solved this task is H Tav
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 113
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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Dancing Duck

A circus owner walked into a bar to see everyone crowded about a table watching a little show. On the table was an upside down pot and a duck tap dancing on it. The circus owner was so impressed that he offered to buy the duck from its owner. After some wheeling and dealing, they settled for $10,000 for the duck and the pot.
Three days later the circus owner runs back to the bar in anger, "Your duck is a ripoff! I put him on the pot before a whole audience, and he didn't dance a single step!"
"So?" asked the ducks former owner, "did you remember to light the candle under the pot?"

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Edison patent

In 1870, Thomas A. Edison was issued a U.S. patent for an “Improvement in Magneto Electric Machines” (No. 222,881). The object of his improvement was to increase the effectiveness and cheapen the construction of the revolving armature. He designed the armature of a cylinder of wood with two iron heads between which fine iron wire was wound on the cylinder. At the ends of the cylinder, outside the iron heads there were disks of hard rubber or other insulating material, and the wires forming the induction helix are wound lengthwise of the cyclindres into notches in the edges of the disk.
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