The Importance Of Electricity In Modern Times
Electricity has become something we rely on to live our lives, but it was by no means an overnight discovery. Over the last two hundred years it has developed from a scientific phenomenon to part of everyday life. One of the first applications of electricity was the first incandescent light bulb in around 1870.
The introduction of electricity to society has introduced some new household hazards; however it did eradicate some of the old ones like the naked flames of the gas lighting that was widely used up until that point.
The Joule heating effect that is used in light bulbs is also used in electric heating. Electric heating, although easily controllable and versatile, could be deemed wasteful as heat has already been used to create this electricity in power stations.
Some countries, for example, Denmark have issued a new legislation restricting the use of electric heating in new buildings, if allowed at all. Electricity is an extremely helpful source for refrigeration. As the demand for air conditioning increases so does the overall electricity demand which electricity utilities will have to cater for.
Electricity is of course used in telecommunication. The electrical telegraph was one of the earliest applications that electricity was used for, commercially demonstrated by Crooke and Wheatstone in 1837.
In the 1860s, electricity had made global communication possible with the first intercontinental telegraph systems (this was of course before the telephone) and then the first transatlantic ones. Since then, satellite communication and optical fibre have taken a share of the communications market, but electricity is sure to remain a vital part of the process.
Electromagnetism is most visibly apparent in the electric motor which of course provides an efficient and clean power motive. A motor that stays in one place, like a winch can easily be powered by a stationary power supply, but a moving motor like an electric car or scooter must carry its power supply along with it in the form of a battery, or it can gain electrical charge from sliding contact like with a pantograph.
The transistor is undoubtedly one of the most important breakthrough inventions of the 1900s. All modern electrical circuits use one to direct the right amount of electricity flow to the right application. Several billion tiny transistors can fit into only a few centimetres. - 21393
The introduction of electricity to society has introduced some new household hazards; however it did eradicate some of the old ones like the naked flames of the gas lighting that was widely used up until that point.
The Joule heating effect that is used in light bulbs is also used in electric heating. Electric heating, although easily controllable and versatile, could be deemed wasteful as heat has already been used to create this electricity in power stations.
Some countries, for example, Denmark have issued a new legislation restricting the use of electric heating in new buildings, if allowed at all. Electricity is an extremely helpful source for refrigeration. As the demand for air conditioning increases so does the overall electricity demand which electricity utilities will have to cater for.
Electricity is of course used in telecommunication. The electrical telegraph was one of the earliest applications that electricity was used for, commercially demonstrated by Crooke and Wheatstone in 1837.
In the 1860s, electricity had made global communication possible with the first intercontinental telegraph systems (this was of course before the telephone) and then the first transatlantic ones. Since then, satellite communication and optical fibre have taken a share of the communications market, but electricity is sure to remain a vital part of the process.
Electromagnetism is most visibly apparent in the electric motor which of course provides an efficient and clean power motive. A motor that stays in one place, like a winch can easily be powered by a stationary power supply, but a moving motor like an electric car or scooter must carry its power supply along with it in the form of a battery, or it can gain electrical charge from sliding contact like with a pantograph.
The transistor is undoubtedly one of the most important breakthrough inventions of the 1900s. All modern electrical circuits use one to direct the right amount of electricity flow to the right application. Several billion tiny transistors can fit into only a few centimetres. - 21393
posted by X - Men @ 3:50 AM
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