Electricity, What is It ?









Todayís scientific question is: What in the world is electricity? And where does it go after it leaves the toaster?

Here is a simple experiment that will teach you an important electrical lesson. On a cool, dry day, scuff your feet along a carpet, then reach your hand into a friends mouth and touch one of his dental fillings. Did you notice how your friend twitched violently and cried out in pain? This teaches us that electricity can be a very powerful force, but we must never use it to hurt others unless they need to learn an important electrical lesson.

It also teaches us how an electrical circuit works. When you scuffed your feet, you picked up batches of "electrons" , which are very small objects carpet manufacturers weave into carpet so that they will attract dirt. The electrons travel through the bloodstream and collect in your finger, where they form a spark that leaps to your friendís filling, then travel down to his feet and back to the carpet.

AMAZING ELECTRONIC FACT: If you scuffed your feet long enough without touching anything, you would build up so many electrons that your finger would explode! But this is nothing to worry about unless you have carpeting.

Although we modern persons tend to take our electric lights, radios, mixers, etc. for granted, hundreds of years ago people did not any of these things, which is just as well because there was no place plug them in. Then along came the first Electrical Pioneer, Benjamin Franklin, who flew a kite in a lightning storm and received a serious electrical shock. This proved that lightning was powered by the force as carpets, but it also damaged Franklinís brain so severely that he started speaking only in incomprehensible maxims, such as "A penny saved is a penny earned". Eventually he had to be given a job running the Post Office.

After Franklin came a herd of Electrical Pioneers whose names have become a part of our electrical terminology : Myron Volt, Mary Louise Amp, James Watt, Bob Transformer etc. These pioneers conducted many important electrical experiments. Among them, Galvani discovered (this is the truth) that when he attached two different kinds of metal to the leg of a frog, an electrical current developed and the frogís leg kicked even though it was no longer attached to the frog, Galvaniís discovery led to enormous advances in the field of amphibian medicine. Today, skilled veterinary surgeons can take a frog that has been seriously injured or killed, implant pieces of metal in its muscles, and watch it hop back into the pond Ė where it sinks like a stone because its dead anyway.

But the greatest Electrical Pioneer of them all was Thomas Edison, who was a brilliant Inventor despite the fact he had little formal education and lived in New Jersey. Edisons first major invention in 1877 was the Phonograph, which would soon be found in thousands of American homes, where it basically sat until 1923 when the record was invented. But Edisonís greatest achievement came in 1879 when he invented the electric company. Edisonís design was a brilliant adaptation of the simple electric circuit; the electric company sends electricity through a wire to a customer, then gets immediately gets it back through another wire, then (this is the brilliant part) sends it right back to the customer again.

This means that an electric company can sell the same batch of electricity thousands of times a day and never get caught, since few customers take the time to examine their electricity closely. In fact the last year any new electricity was generated was 1937.

Today, thanks to men like Edison and Franklin and frogs like Galvaniís we receive almost unlimited benefits from electricity. For example in the past decade scientists have developed the laser, an electronic appliance so powerful it can vaporize a bulldozer 2000 yards away, yet so precise that doctors can use it to perform delicate operations to the human eyeball, provided they remember to change the setting from "bulldozer to eyeball"

Author:
Unknown
found in back of file cabinet mid '80s

Graphics:
stolen from award winning web-sites the world over


 
 

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