Energy & Green Tech
With the escalating impacts of climate change and depletion of resources, dielectric capacitors are emerging as promising high-demanded candidates for high-performance energy storage devices. However, due to the shortcomings ...
Jun 12, 2024
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19
Engineering
Safer, more efficient movements for factory workers and astronauts, and improved mobility for people with disabilities could someday become a more widespread reality, thanks to research published June 12 in the journal Nature.
Jun 12, 2024
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65
Business
A recent study published in IET Generation, Transmission & Distribution explores how artificial intelligence—in particular machine learning techniques—can be leveraged as powerful tools for the electric power and energy ...
Jun 12, 2024
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1
Energy & Green Tech
In facing life's many challenges, we often opt for complex approaches to finding solutions. Yet, upon closer examination, the answers are often simpler than we expect, rooted in the core "essence" of the issue. This approach ...
Jun 11, 2024
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24
Business
Mining is at a critical crossroads. The industry must supply more minerals and metals for the energy transition while simultaneously reducing the carbon footprint across its processes. It also must address negative public ...
Jun 11, 2024
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14
Business
As the international community gathers to discuss Ukraine's post-war recovery, a new analysis led by the University of Oxford demonstrates that green steel should be top of the agenda.
Jun 11, 2024
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1
Engineering
Mechanical engineers at the University of Alberta have teamed up with a renewable energy company to design and test wind turbines based on the wings of the world's heaviest soaring bird: the Andean condor, which is capable ...
Jun 11, 2024
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97
Energy & Green Tech
Early in May, King Philippe of Belgium was on the edge of the Namib desert to inaugurate a project that aims to help decarbonize European industry, and which might just enable one of Africa's smallest economies to hit the ...
Jun 11, 2024
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27
Energy & Green Tech
Green hydrogen could transform our energy system and solve many supply and emissions challenges. Whether this happens will depend on how economically it can be produced and how attractive it will be to consumers.
Jun 10, 2024
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21
Business
Americans continue to be open to purchasing electric vehicles, but are deterred by cost, range, charging capacity, and a lack of charging stations, according to a new survey from the Energy Policy Institute at the University ...
Jun 10, 2024
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7
In physics, energy (from the Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force.
Any form of energy can be transformed into another form, but the total energy always remains the same. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.
Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy relative to the Earth.
This text uses material from Wikipedia, licensed under CC BY-SA
