Friday, October 30, 2009

Electricity

The first history of electricity can be traced back all the way to the Egyptian times, in the form of electric fish. Egyptian texts referred to them as "Thunderer of the Nile" as they were the "protector" of the other fish. These fish can also be traced back to the Greeks and Romans, as there were reports of the catfish and torpedo rays delivering a numbing electric shock.
Electricity was a mere curiosity that scientists someday hoped that they may be able to study and research, until the seventeenth century. English physician William Gilbert did a close study of electricity by rubbing amber together which showed the Loadstone effect. Further work was done by others following this, one of the others being Benjamin Franklin. He even sold his own possessions to fund money for his research. Franklin attached a key to the bottom of a wet kite, and flew the kite in a heavy thunderstorm. Sparks went from the key to the back of his hand, which proved that electricity was very much in nature.
Luis Galvani proved that with bioelectricity, electricity was the medium that the nerve cells used to send signals to the muscle. Batteries were invented later on, which were a much more reliable source than the electrostatic machines that were previously used. Electricity use turned from a mere curiosity into a large source of requirement in our society today. All of this was found from here.

1 comment:

  1. In the amazon there also is an electric eel that with one zap can kill its pray. The eel has adapted so that it doesn't even need teeth, instead it just swallows its pray whole after it has electrocuted it. This is just another animal, like pirannahs and crocodiles that make the amazon extremely dangerous.

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