Energy & Green Tech
Although sub-Saharan areas may seem perfect for solar ovens, many people use wood or coal as the main source of energy for cooking, especially in areas that are not connected to the power grid.
Jun 13, 2024
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25
Energy & Green Tech
The energy transition in Germany, Europe, and across the world is driving robust demand for solar panels. Alongside high energy yields, aesthetics and acceptance are also increasingly important factors. To accommodate these ...
Jun 13, 2024
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1
Engineering
Geothermal energy from the superhot rock miles below our feet has the potential to become a major player in the energy transition, but first we need to develop ways to not only access those rocks, but also extract their heat. ...
Jun 13, 2024
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25
Engineering
From severe storms to recent unprecedented cold and heat waves, extreme weather events are impacting electric utilities, grid operators, and ultimately customers like never before. At the same time, the energy sources that ...
Jun 13, 2024
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18
Business
This week's announcement of the government's plans to reopen New Zealand's territorial waters to oil drilling comes as no surprise. All three coalition parties campaigned on reversing the 2018 ban on offshore oil exploration.
Jun 13, 2024
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8
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
Energy & Green Tech
Achieving the United States' ambitious emissions reduction goals depends in large part on the rapid adoption of wind and solar energy and the electrification of consumer vehicles. However, misinformation and coordinated disinformation ...
Jun 12, 2024
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23
Energy & Green Tech
Artificial intelligence is poised to bring photovoltaic systems into a new era through revolutionary improvements in efficiency, reliability, and predictability of solar power generation.
Jun 12, 2024
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6
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
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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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
