Convertation Class
Invention :- "Electricity"
To day, I talking about the electricity.- The electricity is a grandiose invention since ours ancestor, until now.
600 years ago before Christ, the people discovered a light but they didn’t know the light was a result to process about the electricity, because they used the amber and then rubbing and produced hot and fire for the contact between the amber.
Next in 1600 William Gilbert discover the electrification he puts a coined with some substances and this combination produced a reaction term electric, and he report the word “electric” in his theory of magnetism.
In 1660 Otto Von Guencke , invented a machine for producing static electricity, he was use a ball of sulfur, rotated by crank with one hand and rubbed with the other.
In 1729 Benjamin Franklin, demonstrated the light is electricity, and he used for the first time the word electricity and use the terms positive and negative charge.
Next more scientific to improved the electricity until now, and this invention has been helping for others inventions, T.V., radio, etc.
My conclusion is this invention is more important for the people in the house, in the office, etc. in all the world.
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Submitted by luzy on Fri, 03/03/2006 - 00:06.