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
Solar power is not only the fastest growing energy technology in recent history but also one of the cheapest energy sources and the most impactful in terms of reducing greenhouse gas emissions.
Jun 13, 2024
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49
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
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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Energy & Green Tech
The development of technologies to generate affordable electricity and their deployment in remote or developing geographical regions has been the topic of many recent studies. These studies could inform future interventions ...
Engineering
Dewatering during paper manufacturing is a highly energy-intensive process. New research, published in BioResources, shows how the process can be made more efficient concerning energy consumption.
Jun 12, 2024
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13
Energy & Green Tech
In a study published in Energy Storage Materials , a team led by Prof. Hu Linhua from Hefei Institutes of Physical Science of the Chinese Academy of Science proposed a general principle for evaluating the highest occupied ...
Jun 12, 2024
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12
Energy & Green Tech
Researchers at Oak Ridge National Laboratory have developed free data sets to estimate how much energy any building in the contiguous U.S. will use in 2100. These data sets provide planners with a way to anticipate future ...
Jun 12, 2024
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1
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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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
