Related topics: energy · solar energy · power · megawatts · renewable energy

Germany planning climate action worth over 100 bn euros

German Chancellor Angela Merkel's coalition government plans to commit at least 100 billion euros ($110 billion) on climate protection by 2030, according to a draft policy paper being discussed on Thursday.

Synthetic fuels could shrink carbon footprint

Synthetic fuels, made using carbon captured from the air, farm waste or biomass, could help the transport sector reduce its reliance on fossil fuels and meet "net-zero" greenhouse gas emission goals.

California looks for ways to preserve environmental clout

The Trump administration's move to stop California from setting its own emission standards for cars and trucks would undermine the state's ability to convince the world's largest automakers that they should make more environmentally ...

Researchers use laser light to transform metal into magnet

Pioneering physicists from the University of Copenhagen and Nanyang Technological University in Singapore have discovered a way to get non-magnetic materials to make themselves magnetic by way of laser light. The phenomenon ...

Significant progress made in inverse photoconductance

Valencia University (UV) researchers have modified the photoconductance of nanoparticles of tungsten oxide (WO3) in a controlled manner. This has potential applications in photonics and optomechanics. The results have been ...

Image: Baja California

This Copernicus Sentinel-1 image takes us just south of the US border, to the region of Baja California in northwest Mexico. Its capital city, Mexicali, is visible top left of the image.

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Electricity

Electricity (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.

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