Find number abc
[7509] Find number abc - If 9a82b - 798ca = 1a967 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 3
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Find number abc

If 9a82b - 798ca = 1a967 find number abc. Multiple solutions may exist.
Correct answers: 3
#brainteasers #math
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Catsup

Little Johnny's mother was trying hard to get the catsup to come out of the bottle. During her struggle the phone rang so she asked four-year old Johnny to answer the phone.
Little Johnny ran out into the living room and answered the phone. "Mommy, It's the minister," he said to his mother.
From the kitchen Johnny's mom said, "Tell him I'll call him back."
Little Johnny spoke into the phone saying, "Mommy can't come to the phone to talk to you right now. She's hitting the bottle."      

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Sir Ambrose Fleming

Died 18 Apr 1945 at age 95 (born 29 Nov 1849). John Ambrose Fleming was an English electrical engineer who invented, and coined the name for, the first thermonic valve (also known as a vacuum tube). It was a diode with two electrodes, that acted as a rectifier, restricting current to flow in only one direction in a circuit (patented 1904). It made use of the Edison effect— the emission of electrons from a heated metal surface. By sealing a heated filament in a glass envelope containing a vacuum, the internal movement of electrons was not obstructed by gas molecules. The second electron at high positive voltage attracted the electrons released from the surface of the first, heated, electrode. It was applied the device in circuits for the nacent telecommunications industry. His name is remembered in the Fleming “Left Hand Rule” mnemonicfor relating the directions of motion, current and magnetic field for a motor.«
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