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You change this world
I believe the electricity is the greatest invention.
Electricity is operated simply, we just switch on, and the lights’ on, the machines run. Then switch off, they were off.
Electricity is transmitted simply, just some pieces of metal wires.
Electricity can be converted into many forms of energy. Like light, heat, kinetic power, magnetism, sound, waves, and so on.
Electricity is friendly to the environment, does no harm to the earth and human beings, of course, do not touch it.
Electricity goes everywhere, changed and influenced this world thoroughly.
In daily life, it makes we live better, the washing machine, television, beautiful lights, and other electric appliances, mean laborsaving, more efficient, more clean, more comfortable, we can not live without it.
In the evening, on your balcony, you were enjoying the wonderful view, the remote lights shone, moved, sparkled, the music from the store made you sing along, all of a sudden, the power was cut off, the sudden absence of power took everything, just darkness and silence left. What a terrible sight to imagine.
Electricity makes the nations rich and advanced or developing.
The electromotor become available when the electricity appeared, it made the machines run faster, more strongly, and more minutely.
The dieselmotivitor would be ashamed when the electricmotivitor chucked off with good speed and one full-loaded wagons.
In agriculture, industry, and manufacture, electricity acts so fundamentally.
Electricity led electric communication, some one said the world is too small, I think electricity played a very important role in this change.
Electricity contributes so much to the science and technology, the application of electricity deepened, expanded and simplified the measure processes and analysis methods. Made the results more accurate, the tedious work is transformed into a matter of some buttons and some minutes.
One teacher told me, at past, for researchers and scientists in chemistry study, what was the most difficult was not the experiment, but the characterization of the products. At present, it becomes so simple, you just pay them money and you would get the information of the products’ structures.
Electricity, expanded the research field and introduced many new subjects, as electrochemistry, electrooptics, electromagnetism, and so on.
Electricity is so important, maybe we young people don’t think it is a great deal, because of its familiarity, we just know it is awful if power is off.
Yes, it’s you, the electric power, you changed this world, and you are keeping it unconsciously every minute, every second.

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附件：elec.doc