Automotive

Nissan shares plunge after profit warning

Nissan tumbled more than 10 percent on Thursday after the Japanese automaker issued a profit warning, citing "intense sales competition", especially in the United States.

Robotics

Trajectory planning could boost safety in medical robotics

Using a newly-devised complex algorithm, the researchers have created a perfectly choreographed "dance" using two robotic arms, continuously retaining a clear space between them—where a patient's body would fit—as well ...

Automotive

In fuel-guzzling Saudi Arabia, electric cars pique interest

For Hamed al-Rafidain, a Saudi human resources worker, an electric vehicle offers welcome savings, especially since his other car is a fuel-guzzling four-wheel drive favored by motorists in the desert kingdom.

Engineering

Creating loops of liquid lithium for fusion temperature control

Fusion vessels have a Goldilocks problem: The plasma within needs to be hot enough to generate net power, but if it's too hot, it can damage the vessel's interior. Researchers at the Princeton Plasma Physics Laboratory (PPPL) ...

page 1 from 40

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.

This text uses material from Wikipedia, licensed under CC BY-SA