Electricity And Its Origins
Electricity, as we all know is an extremely diverse and flexible energy form. It has been adapted over the last 200 or so years to the point where we can now use it for pretty much anything. One of the first applications of electrical power that was publicly available was LED lighting when the first incandescent light bulb was invented in the 1870s.
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 process takes place in light bulbs, and also in electric heating. Many people have condemned electric heating as uneconomic because effectively, heat energy is being used (in power stations) on mass to create heat for houses.
Denmark (among a few other countries) has issued a new law restricting electric heating use in new buildings, if allowed at all. As well as heating, electricity provides a hugely beneficial source of refrigeration. As temperatures get hotter, the demand for air conditioning gets higher, increasing the amount of energy used, and so climate change is increasing in a snowball effect.
Another area that depends on electricity to function is telecommunication. The electric telegraph was in fact one of the first ways in which electricity was used successfully.
Global communication was made possible in the 1860s with the invention of intercontinental telegraph systems, followed shortly by a transatlantic telegraph system. More recently, fibre optics and satellite communication have taken a large share of the communications market, but without electricity both would be rendered useless.
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.
Perhaps the most important invention of the 1900s is the transistor. It is a vital part of all modern electrical circuits and a modern integrated circuit may contain several billion miniaturised transistors in a region of only a few centimetres squared.
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 process takes place in light bulbs, and also in electric heating. Many people have condemned electric heating as uneconomic because effectively, heat energy is being used (in power stations) on mass to create heat for houses.
Denmark (among a few other countries) has issued a new law restricting electric heating use in new buildings, if allowed at all. As well as heating, electricity provides a hugely beneficial source of refrigeration. As temperatures get hotter, the demand for air conditioning gets higher, increasing the amount of energy used, and so climate change is increasing in a snowball effect.
Another area that depends on electricity to function is telecommunication. The electric telegraph was in fact one of the first ways in which electricity was used successfully.
Global communication was made possible in the 1860s with the invention of intercontinental telegraph systems, followed shortly by a transatlantic telegraph system. More recently, fibre optics and satellite communication have taken a large share of the communications market, but without electricity both would be rendered useless.
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.
Perhaps the most important invention of the 1900s is the transistor. It is a vital part of all modern electrical circuits and a modern integrated circuit may contain several billion miniaturised transistors in a region of only a few centimetres squared.
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