Engineering

Your body has internet—and now it can't be hacked

Someone could hack into your pacemaker or insulin pump and potentially kill you, just by intercepting and analyzing wireless signals. This hasn't happened in real life yet, but researchers have been demonstrating for at least ...

Robotics

Ultra-low power chips help make small robots more capable

An ultra-low power hybrid chip inspired by the brain could help give palm-sized robots the ability to collaborate and learn from their experiences. Combined with new generations of low-power motors and sensors, the new application-specific ...

Computer Sciences

Securing the 'internet of things' in the quantum age

MIT researchers have developed a novel cryptography circuit that can be used to protect low-power "internet of things" (IoT) devices in the coming age of quantum computing.

Engineering

Researchers create fireproof, self powered sensor

McMaster researchers, working with partners at other universities, have created a motion-powered, fireproof sensor that can track the movements of firefighters, steelworkers, miners and others who work in high-risk environments ...

Energy & Green Tech

How machine learning can boost the value of wind power

Google talked about the feats of London-based DeepMind on Tuesday—telling the world that a DeepMind system could help make the use of wind farms to produce energy more viable.

Automotive

Ground-breaking electric Chevrolet Volt runs out of juice

As their company was swirling around the financial drain in the early 2000s, General Motors executives came up with an idea to counter its gas-guzzling image and point the way to transportation of the future: an electric ...

US seeks ways to recycle lithium batteries in cars, phones

The U.S. government will lead an ambitious effort to develop technologies to recycle lithium-ion batteries from electric vehicles, cellphones and other sources to ensure a reliable and affordable supply of metals crucial ...

Automotive

Amazon invests in electric vehicle startup Rivian

Electric vehicle startup Rivian on Friday announced a $700 million investment round led by Amazon, which recently pumped money into a young self-driving car technology firm.

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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