Energy & Green Tech
The sharp drop in prices for minerals critical to the green energy transition is masking a looming shortage due to inadequate investment, the International Energy Agency said Friday.
May 17, 2024
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Energy & Green Tech
Even green Europeans would rather tap coal than face the reality of overdependence on unreliable renewable energy.
May 17, 2024
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20
Automotive
The president of Chinese electric vehicle maker XPeng on Friday criticized the fresh tariffs on Chinese cars imposed by Washington as "unfavorable" for the United States' energy transition.
May 17, 2024
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Business
Chemical and material engineering professor, Adnan Khan, has spent the past 15 years focusing his research on developing sustainable technologies aimed at decarbonizing our energy systems. "This is the most important challenge ...
May 16, 2024
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Business
Last summer, the northern hemisphere was the hottest it has been for 2,000 years.
May 16, 2024
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Energy & Green Tech
After spinning for under two years, a wind farm can offset the carbon emissions generated across its entire 30-year lifespan, when compared to thermal power plants.
May 16, 2024
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Business
As the United States continues to transition to clean energy, strengthening the domestic supply chain by increasing the availability of critical materials is paramount to enabling greater domestic manufacturing.
May 16, 2024
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Energy & Green Tech
Instead of burning fossil fuels to smelt steel and cook cement, researchers in Switzerland want to use heat from the sun. The proof-of-concept study, published May 15 in the journal Device, uses synthetic quartz to trap solar ...
May 15, 2024
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158
Robotics
A team of researchers at Delft University of Technology has developed a drone that flies autonomously using neuromorphic image processing and control based on the workings of animal brains. Animal brains use less data and ...
May 15, 2024
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Engineering
By studying how bubbles form in a drop of biodiesel, researchers at the University of Gothenburg can help future engines get the most energy out of the fuel.
May 15, 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
