Energy & Green Tech
Scientists from the National Institute of Education/Nanyang Technological University of Singapore developed a method for converting fruit wastes such as coconut husks, orange peels, and banana peels into a solar absorber ...
17 hours ago
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8
Engineering
Lower electricity costs for consumers and more reliable clean energy could be some of the benefits of a new study by the University of Adelaide researchers who have examined how predictable solar or wind energy generation ...
18 hours ago
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38
Consumer & Gadgets
Earlier this month, regulators flagged power price rises in Queensland, New South Wales, Victoria and South Australia. Like many people, you're probably wondering how you can minimize the financial pain.
18 hours ago
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6
Business
As cryptocurrency mining draws increased scrutiny on Capitol Hill in Washington, D.C., some state legislatures are considering proposals to restrict the industry over growing concerns about its energy use. Other states, though, ...
Mar 22, 2023
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4
Energy & Green Tech
Simon Fraser University professor Vincenzo Pecunia has led a team of more than 100 internationally-recognized scientists in creating a comprehensive "roadmap" to guide global efforts to convert waste energy into clean power.
Mar 22, 2023
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15
Software
Ask your computer or phone to translate a sentence from English to Italian. No problem, right? But this task is not as easy as it appears. The software behind your screen had to learn how to process hundreds of billions of ...
Mar 22, 2023
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13
Energy & Green Tech
Lithium-ion batteries are ubiquitous today, but that does not mean that they are the best solution for all areas of application. TU Wien has now succeeded in developing an oxygen-ion battery that has some important advantages. ...
Mar 22, 2023
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302
Engineering
Korea Institute of Civil Engineering and Building Technology has developed the world's first shear-thickening-fluid–based (STF) stemming solution. This is the first time that an STF has been developed into a blasting construction ...
Mar 22, 2023
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4
Engineering
The impact of multi-story building design considerations on embodied emissions, cost, and operational energy has been revealed for the first time. Using a model, researchers estimate that 28% to 44% of yearly heating and ...
Mar 22, 2023
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6
Energy & Green Tech
Physicist Anders Carlsson, at Washington University in St. Louis, and Sid Redner of the Santa Fe Institute have created a new mathematical model to describe the most reliable, efficient and cost-effective way to harness solar ...
Mar 22, 2023
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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
