Who is the mysterious person i...
[1907] Who is the mysterious person i... - Who is the mysterious person in the picture? - #brainteasers #riddles - Correct Answers: 76 - The first user who solved this task is Djordje Timotijevic
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Who is the mysterious person i...

Who is the mysterious person in the picture?
Correct answers: 76
The first user who solved this task is Djordje Timotijevic.
#brainteasers #riddles
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A blonde, a brunette, and a re...

A blonde, a brunette, and a redhead all work at the same office for a female boss who always goes home early. "Hey girls," says the brunette, "Let's go home early tomorrow. She'll never know." The next day, they all leave right after the boss does. The brunette gets some extra gardening done, the redhead goes to a bar, and the blonde goes home to find her husband having sex with the female boss! She quietly sneaks out of the house and returns at her normal time. "That was fun," says the brunette. "We should do it again sometime." "No way," says the blonde. "I almost got caught!"
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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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