Data centers are guzzling up too much electricity. Can we make them more efficient?
Our insatiable demand for digital content and services has been driving a rise in energy-hungry data centers.
Jul 29, 2024
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Our insatiable demand for digital content and services has been driving a rise in energy-hungry data centers.
Jul 29, 2024
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Two new papers, both authored by Mohamed Mehana of the Earth and Environmental Sciences division at Los Alamos National Laboratory, explore the feasibility of well retrofitting and clean hydrogen production from fossil fuels.
Jul 29, 2024
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The grid needs to change. To electrify everything from vehicles to heating systems to stovetops, the U.S. grid must expand by about 57% and get more flexible, too. Solar and wind energy are the renewables most likely to dominate ...
Jul 29, 2024
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In recent years, engineers and scientists worldwide have been working on new technologies for generating electricity from renewable energy sources, including photovoltaics (PVs), wind turbines and hydro-power generators. ...
Freshwater scarcity affects over two billion people in the world, primarily in arid and remote regions, as well as islands and coastal areas without freshwater sources. Climate change and population growth are only making ...
A decarbonized steel industry that includes carbon dioxide removal techniques in its net zero arsenal could use lower-grade iron ore, according to a new study.
Jul 29, 2024
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Australia was slow to introduce minimum building standards for energy efficiency. The Nationwide House Energy Rating Scheme (NatHERS) only came into force in 2003.
Jul 26, 2024
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At first glance, the plan sounds compelling: invent and develop future electrolyzers capable of producing hydrogen directly from unpurified seawater. But a closer look reveals that such direct seawater electrolyzers would ...
Jul 26, 2024
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Local decentralized energy systems, known as microgrids, can make urban infrastructures more resilient and reduce risks for the population, for example, in large-scale power outages due to natural hazards or cyberattacks.
Jul 26, 2024
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Engineering researchers at the University of Minnesota Twin Cities have demonstrated a state-of-the-art hardware device that could reduce energy consumption for artificial intelligent (AI) computing applications by a factor ...
Jul 26, 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