Engineering
A team of researchers in the Faculty of Engineering of The University of Hong Kong (HKU) has developed a coin-sized system that can read weak electrochemical signals and can be used for personalized health monitoring and ...
Aug 9, 2022
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99
Robotics
When communication lines are open, individual agents such as robots or drones can work together to collaborate and complete a task. But what if they aren't equipped with the right hardware or the signals are blocked, making ...
Jul 20, 2022
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73
Internet
Most people agree that the spread of online misinformation is a serious problem. But there is much less consensus on what to do about it.
May 16, 2024
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22
Software
While virtual reality has been around for decades, a combination of higher-resolution graphics, smoother tracking of the user's movements and cheaper, sleeker headsets has propelled the immersive technology into arenas beyond ...
Aug 16, 2022
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10
Energy & Green Tech
An international collaboration led by EPFL chemical engineers has overcome a problem in the manufacturing of perovskites that reduces their efficiency as solar panels. The approach produced perovskite solar panels with an ...
Nov 11, 2021
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123
Security
Modern cars and autonomous vehicles use millimeter wave (mmWave) radio frequencies to enable self-driving or assisted driving features that ensure the safety of passengers and pedestrians. This connectivity, however, can ...
May 24, 2023
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74
Engineering
A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make it possible to 3D print ...
Nov 14, 2022
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469
Engineering
Big scientific breakthroughs often require inventions at the smallest scale. Advances in tissue engineering that can replace hearts and lungs will require the fabrication of artificial tissues that allow for the flow of blood ...
Aug 19, 2022
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51
Engineering
We are living in a very noisy world. From the hum of traffic outside your window to the next-door neighbor's blaring TV to sounds from a co-worker's cubicle, unwanted noise remains a resounding problem.
May 7, 2024
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61
Engineering
Taking a cue from the structural complexity of trees and bones, Washington State University engineers have created a way to 3D-print two types of steel in the same circular layer using two welding machines. The resulting ...
Jun 22, 2023
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200
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
