Energy & Green Tech

Using the power of plants to filter wastewater

Plants can be decoration, medicine, food, garments—they have as many uses as they do shapes and sizes. And Jacques Brisson, professor in the University of Montreal's Department of Biological Sciences, knows it better than ...

Energy & Green Tech

Perfecting the electric vehicle battery recycling process

Recycling of electric car batteries can be easier, cheaper, and more environmentally friendly, according to a new scientific article from Chalmers University of Technology, Sweden, which outlines an optimized recycling process. ...

Engineering

Nano-engineered sealer leads to more durable concrete

A nanomaterials-engineered penetrating sealer developed by Washington State University researchers is able to better protect concrete from moisture and salt—the two most damaging factors in crumbling concrete infrastructure ...

Robotics

Kirigami robotic grippers are delicate enough to lift egg yolks

Engineering researchers from North Carolina State University have demonstrated a new type of flexible, robotic grippers that are able to lift delicate egg yolks without breaking them, and that are precise enough to lift a ...

Engineering

Using 3D printing for alloy materials innovation

While millions of people around the world enjoy renewed mobility from hip and knee replacements, many don't realize that the materials used in such implants have basically stayed the same since the 1960s.

Electronics & Semiconductors

Reasserting US leadership in microelectronics

The global semiconductor shortage has grabbed headlines and caused a cascade of production bottlenecks that have driven up prices on all sorts of consumer goods, from refrigerators to SUVs. The chip shortage has thrown into ...

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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