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It is impossible to imagine our civilization without
electricity: economic and social progress will be turned to the past and our
daily lives completely transformed.
Electrical power has become universal Thousands of
applications of electricity such as lighting, electrochemistry and electrometallurgy
are longstanding and unquestionable.
With the appearance of the electrical motor, power
cables replaced transmission shafts, gear wheels, belts and pulleys in the 19-th century workshops. And in the home a whole range of various time
and labour saving appliances have become a part of our everyday
lives.
Other devices are based on specific properties of
electricity: electrostatics in the case of photocopying machine and
electromagnetism in the case of radar and television. These applications have
most widely used.
The first industrial application was in the silver
workshops in Paris. The generator — a new compact
source of electricity — was also developed
there. The generator replaced the batteries and other devices that had been
used before.
Electric lighting came into wide use at the end of the
last century with the development of the electric lamp by Thomas Edison. Then
the transformer was invented, the first electric lines and networks were set
up, dynamos and induction motors were designed.
Since the beginning of the 20th century the successful
development of electricity has begun throughout the industrial world. The
consumption of electricity has doubled every ten years.
Today consumption of electricity per capita is an indicator of the slate of development and economic health of a nation.
Electricity has replaced other sources of energy as it has been realized that it offers improved service and reduced
cost.
One of the greatest advantages of electricity is that
it is clean, easily-regulated and generates no by-products.
Applications of electricity now cover all fields of human activity from house
washing machines to the latest laser devices. Electricity is the efficient
source of some of the most recent technological advances such as ' the laser and electron beams. Truly electricity provides mankind with the energy of the future.