Business

How vulnerable are European countries to changes in gas prices?

On 24 February 2022, the Russian army entered Ukraine, escalating a conflict that had begun almost a decade earlier. On the same day, the European Council held an urgent meeting to respond to the aggression and to study emergency ...

Engineering

Why batteries come in so many sizes and shapes

If you've looked in your utility drawer lately, you may have noticed the various shapes, sizes and types of batteries that power your electronic devices. First, there are the round, non-rechargeable button cells for your ...

Business

Biden lands another big Taiwan chip investment

The Taiwan chip giant TSMC has agreed to build a third semiconductor factory in Arizona, raising its total investment in the United States to $65 billion, US officials said Monday.

Robotics

Elon Musk says Tesla will unveil robotaxi in August

Elon Musk revealed Friday that Tesla will pull back the curtain on a robotaxi this summer, news that comes as the adoption of self-driving vehicles hits speed bumps over safety concerns.

Energy & Green Tech

China's green-tech manufacturing powerhouse

China has extended its manufacturing domination to clean energy industries in recent years, alongside a global push for climate change action, but that is starting to worry the United States, Europe and others.

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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.

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