Tuesday, October 2, 2012

History of Electricity

The early history of electricity was discovered by a Greek scholar named Thales, which mengemungkakan phenomenon that amber when rubbed - rub the fur would be interesting as a phenomenon of electricity. Then after many - years after Thales ideas put forward, and then appeared again penapat - opinions and new theories regarding electricity as researched and presented by William Gilbert, Joseph priestley, Charles de Coulomb, AmpereMichael Farraday, Oersted, etc..

information about the history of the inventor of electricity is presented in bentu panel and supported by the audio device that presents visual clone of experiments - experiments that have been done by scientists.

Ben Franklin

Many people think Benjamin Franklin discovered electricity famous kite experiment in 1752, but
electricity was not discovered all at once. At first, the electricity associated with light.
People want a cheap and safe way to light their homes, and scientists thought possible electrical path.

Battery

Learning how to produce and use electricity is not easy. For a long time there
no reliable source of electricity for the experiment. Finally, in 1800, Alessandro Volta, an Italian scientist, makes a major discovery. he's soaked paper in salt water, zinc and copper are placed on opposite sides of the paper, and observe the chemical reaction produces an electric current. Volta had created the first electric cell. By connecting many of these cells together, Volta was able to "current string" and make batteries. It is in honor of Volta that we measured in volt battery. Finally, sources of safe and reliable electricity is available, making it easier for scientists to study electricity.

An English scientist, Michael Faraday, was the first to realize that
electric current can be generated by passing a magnet through
copper wire. It was an amazing discovery. Almost all electricity
we use today are made with magnets and coils of copper wire in a giant
power plants.

Both the electric generator and the electric motor is based on this
principle. A generator converts the energy of motion into electricity. A
Motors convert electrical energy into motion energy.


Thomas Edison

n 1879, Thomas Edison
focused on creating a
Light the lamp, which
will last a long time before
burning. The problem is
find strong material for
filament, a small wire
inside the bulb that does
electricity. Eventually, Edison used
ordinary cotton thread
been soaked in carbon.
These filaments do not burn at
all it is bulb;
that is, it shines.

The next challenge is to develop systems that can power
provide people with a practical source of energy to power these new
lights. Edison wanted a way to make practical electric and
cheap. He designed and built the first power plant
capable of generating electricity and took it to people's homes.
Edison's Pearl Street Power Station began a generator which in
September 4, 1882, in New York City. About 85 customers under
Manhattan received enough power to light 5,000. Her
electricity customers pay a lot for them, though. In today's dollars,
electricity costs $ 5.00 per kilowatt-hour! Currently, the cost of electricity
about 12 cents per kilowatt-hour for residential customers, and
about 7 cents per kilowatt-hour for the industry.

AC / DC

The turning point of the electric age came a few years later with
development of AC (alternating current) power systems. with
alternating current, the power plant can carry a lot of electricity
further than before. In 1895, George Westinghouse opened the first
The main power plant at Niagara Falls using alternating current. while
Edison's DC (direct current) power plants can only carry
within one square mile of his Pearl Street Power Station, Niagara
Plants falling capable of transporting electricity over 200 miles!
Electricity does not have an easy start. Many people
pleased with all the new discoveries, but some people fear
electricity and alert brought to their home. many social
critics today see power as an end to a simple, less hectic
life. Poets commented that electric lights are less romantic than
gas lamps. Maybe they are right, but the new electric age can
not dim.

In 1920, only two percent of the energy in the U.S. is used to make
electricity. Today, about 41 percent of the energy used to make
electricity. As we use technology grow, that number will continue to
increased.

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