Replace the question mark with a number
[3093] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 794 - The first user who solved this task is Дејан Шкребић
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 794
The first user who solved this task is Дејан Шкребић.
#brainteasers #math #riddles
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Things To Consider

If any of you here are thinking of getting married, consider the following before you do.
On one hand, you get to wear a pretty cool ring...
On the other hand, you don’t.

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First Audion tube

In 1906, the first triode was ordered by Lee de Forest who instructed the New York automobile lamp maker, H. W. Candless, to make a glass bulb containing a "grid" wire between a filament and an electrode plate. These specifications extended the Fleming two-element diode valve design previously published in the Proceedings of the Royal Society. The third element - the grid wire - regulated the flow of electrons between the filament and the anode plate, producing an amplification of the variations in a signal voltage applied to the grid. De Forest named his invention the "Audion." Within a few years (1913-1917) he was able to profit from his patents that he sold to AT&T for a total of $390,000.«[Image: A de Forest Audion tube, circa 1912.]
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