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Electricity
hideElectricity (from the New Latin ēlectricus, "amber-like"[a]) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning and static electricity, but in addition, less familiar concepts, such as the electromagnetic field and electromagnetic induction.
In general usage, the word 'electricity' is adequate to refer to a number of physical effects. However, in scientific usage, the term is vague, and these related, but distinct, concepts are better identified by more precise terms:
Electrical phenomena have been studied since antiquity, though advances in the science were not made until the seventeenth and eighteenth centuries. Practical applications for electricity however remained few, and it would not be until the late nineteenth century that engineers were able to put it to industrial and residential use. The rapid expansion in electrical technology at this time transformed industry and society. Electricity's extraordinary versatility as a source of energy means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation. The backbone of modern industrial society is, and for the foreseeable future can be expected to remain, the use of electrical power.
For more information about Electricity, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with electricity
Physicists Demystify Utility of Power Factor Correction Devices
Dec 16, 2009 |
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(PhysOrg.com) -- If you've seen an Internet ad for capacitor-type power factor correction devices, you might be led to believe that using one can save you money on your residential electricity bill. However, ...
Toward home-brewed electricity with 'personalized solar energy'
Dec 16, 2009 |
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New scientific discoveries are moving society toward the era of "personalized solar energy," in which the focus of electricity production shifts from huge central generating stations to individuals in their ...
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Hot Electrons Could Double Solar Cell Power Efficiency
Dec 18, 2009 |
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Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
Panasonic plans home-use storage cell
14 hours ago |
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Panasonic Corp., which recently made a successful takeover bid for Sanyo Electric Co., plans to market a lithium-ion storage cell for home use around fiscal 2011.
Launch of first operating system for smart grid home automation
Dec 16, 2009 |
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Fraunhofer IWES (Germany) presents the OGEMA Alliance, which will offer an open software platform for energy management.
Glitter-sized solar photovoltaics produce competitive results
Dec 22, 2009 |
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Sandia National Laboratories scientists have developed tiny glitter-sized photovoltaic cells that could revolutionize the way solar energy is collected and used.
How to spur energy storage innovations
Dec 17, 2009 |
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Imagine flying all the way from coast to coast, completely guilt-free, in an airplane that doesn’t emit a single particle of greenhouse gas or air pollutants. That could happen someday, perhaps brought to ...
UN climate official warns of Indian energy 'crisis'
10 hours ago |
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India's reliance on coal means the country is heading for an energy crisis unless it diversifies its sources of power, the chairman of the UN's top climate change panel predicted on Wednesday.
Study expects rising interest in energy saving
Dec 16, 2009 |
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(AP) -- Energy-efficient technology for batteries, grids and power storage will be trendy in 2010, according to a study released Wednesday on clean energy technology.
Many take dim view of new-fangled Christmas lights
Dec 21, 2009 |
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(AP) -- To Steven Walls, it's beginning to look nothing like Christmas, anywhere he goes.
Dental delight! Tooth of sea urchin shows formation of biominerals
Dec 21, 2009 |
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(PhysOrg.com) -- Some of the most common minerals in biology, including those in bones and shells, have a mysterious structure: Their crystals are positioned in the same orientation, making them behave as ...
Genomic toggle switches divide autoimmune diseases into distinct clusters
2 hours ago |
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Genomic switches can predispose an individual to one set of autoimmune disorders but protect the same person against another set of them, scientists at Stanford University School of Medicine have found.
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