Electronics & Semiconductors
Capacitors are energy storage devices—consisting of two electrodes and an electrolyte—that are capable of rapid charging and discharging because of charge adsorption and desorption properties at the electrode-electrolyte ...
Aug 19, 2022
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318
Electronics & Semiconductors
With the onset of the Internet of Things (IoT) era, devices have learned to communicate and exchange data. This is achieved through sensors installed in physical objects, machines, and equipment. The sensors can detect changes ...
Aug 18, 2022
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28
Energy & Green Tech
As industries across the country begin the transition to renewable energy, the demand for batteries, and therefore lithium, is projected to rise dramatically. But, with much of the global lithium supply located outside of ...
Aug 17, 2022
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99
Energy & Green Tech
The photocatalytic water splitting process holds appeal for scientists as a solution to both energy and environmental problems. In this process, water is split into oxygen and hydrogen using light energy and a catalyst. As ...
Aug 17, 2022
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4
Energy & Green Tech
Researchers at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences (CAS) have proposed a pulsed current strategy to monitor the intermittency of renewable energy, proving ...
Aug 17, 2022
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3
Energy & Green Tech
As the U.S. government expands incentives for renewable energy, a decision by the Missouri Supreme Court is moving the state in the opposite direction by halting a solar energy tax break that has been on the books for nearly ...
Aug 17, 2022
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10
Energy & Green Tech
Wind energy continues to see strong growth, solid performance, and attractive prices in the U.S., according to a report released by the U.S. Department of Energy (DOE) and prepared by Lawrence Berkeley National Laboratory ...
Aug 16, 2022
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60
Electronics & Semiconductors
New technology, developed by researchers at the University of York, has proved successful in reducing the risk of electrocution to drivers and passengers of electric vehicles as a result of damage to the cars in major road ...
Aug 16, 2022
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44
Engineering
As important as the internal combustion engine has been for societal progress, it is also a major contributor to pollution that damages human health and carbon emissions that help drive the climate crisis. Close to 30% of ...
Aug 16, 2022
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262
Consumer & Gadgets
Current severe heatwaves that will likely increase in severity and frequency in the future are driving a rise in the use of air conditioners, threatening the environment with their high energy consumption and refrigerants ...
Aug 16, 2022
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69
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
