Consumer & Gadgets

The first mobile phone call was 75 years ago: A look back

I have a cellphone built into my watch. People now take this type of technology for granted, but not so long ago it was firmly in the realm of science fiction. The transition from fantasy to reality was far from the flip ...

Energy & Green Tech

'Open Rotor' engine for sustainable aviation

To advance the goal of achieving environmentally sustainable aviation, the jet engine giants of the U.S. and France on Monday unveiled a joint vision that would significantly change both the look of airplane engines and how ...

Machine learning & AI

Artificial intelligence speeds land-use classification

An EPFL Master's student has shown that artificial intelligence can be used to further automate the process of land-use classification in Switzerland, especially for rare and complicated land categories that until now have ...

Engineering

Creating 'digital twins' at scale to improve drone deliveries

Picture this: A delivery drone suffers some minor wing damage on its flight. Should it land immediately, carry on as usual, or reroute to a new destination? A digital twin, a computer model of the drone that has been flying ...

Automotive

Former VW boss to pay firm $13 million over diesel scandal

Former Volkswagen CEO Martin Winterkorn has agreed to pay 11.2 million euros ($13.6 million) in compensation for what the company called his failure to quickly get to the bottom of the 2015 scandal over diesel engines rigged ...

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Engine

An engine is a mechanical device that produces some form of output from a given input. An engine whose purpose is to produce kinetic energy output from a fuel source is called a prime mover; alternatively, a motor is a device which produces kinetic energy from other forms of energy (such as electricity, a flow of hydraulic fluid or compressed air). A motor car (automobile) has a starter motor and motors to drive pumps (fuel, power steering, etc) – but the power plant that propels the car is called an engine. The term 'motor' was originally used to distinguish the new internal combustion engine -powered vehicles from earlier vehicles powered by a steam engine (as in steam roller and motor roller).

Military engines included siege engines, large catapults, trebuchets and battering rams.

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