Can bismuth prevent oil leaks and save Norwegians billions?
Over the next 25 years, as the world shifts away from fossil fuels, the oil and gas wells that have sustained the fossil fuel age will have to be plugged.
9 hours ago
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Over the next 25 years, as the world shifts away from fossil fuels, the oil and gas wells that have sustained the fossil fuel age will have to be plugged.
9 hours ago
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From Barcelona to Mexico City, popular tourist destinations are facing droughts and running out of water. Yet, a huge 40% of household water is used for showers and baths, with products like shower gel actively encouraging ...
Apr 16, 2024
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Amazon will soon offer same-day delivery of several prescription medications in Los Angeles and New York, yet another example of the online shopping giant's bet on consumers' growing dependence on ease and speed.
Mar 27, 2024
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Developers of a huge wind farm proposed for construction near Anchorage say it could help provide a much-needed boost to the area's energy needs, and will be most productive when it's most needed, when temperatures drop and ...
Feb 26, 2024
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Often referred to as the "dream batteries," all-solid-state batteries are the next generation of batteries that many battery manufacturers are competing to bring to market. Unlike lithium-ion batteries, which use a liquid ...
Dec 4, 2023
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Damp, cold conditions are the enemy of wind power. If a layer of ice forms on the rotor blades, this can result in rotational imbalance and, hence, increased wear. In such cases, the turbines often have to be shut down for ...
Dec 1, 2023
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A research team has successfully developed an environmentally friendly refrigerant compressor using an electrochemical method instead of a mechanical method. The development is published in Renewable Energy.
Nov 24, 2023
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Recently, a team led by Prof. Sun Jinhua and Prof. Wang Qingsong from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. Guo Tuan from Jinan University, ...
Sep 27, 2023
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In the cradle of France's atomic program, researchers are using their nuclear know-how for a key project in the country's energy transition: recycling the raw materials in old electric car batteries, solar panels and wind ...
Sep 27, 2023
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Scientists have developed a new method that converts seawater into drinking water that could be useful in disaster zones where there is limited electrical power.
Sep 21, 2023
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High pressure science and engineering is studying the effects of high pressure on materials and the design and construction of devices, such as a diamond anvil cell, which can create high pressure. By high pressure it is usually meant pressures of thousands (kilobars) or millions (megabars) of times atmospheric pressure (about 1 bar).
It was by applying high pressure as well as high temperature to carbon that man-made diamonds were first produced as well as many other interesting discoveries. Almost any material when subjected to high pressure will compact itself into a denser form, for example, quartz, also called silica or silicon dioxide will first adopt a denser form known as coesite, then upon application of more temperature, form stishovite. These two forms of silica were first discovered by high pressure experimenters, but then found in nature at the site of a meteor impact.
Chemical bonding is likely to change under high pressure, when the P*V term in the free energy becomes comparable to the energies of typical chemical bonds - i.e. at around 100 GPa. Among the most striking changes are metallization of oxygen at 96 GPa (rendering oxygen a superconductor), and transition of sodium from a nearly-free-electron metal to a transparent insulator at ~200 GPa. At ultimately high compression, however, all materials will metallize.[citation needed]
High pressure experimentation has led to the discovery of the types of minerals which are believed to exist in the deep mantle of the Earth, such as perovskite which is thought to make up half of the Earth's bulk, and post-perovskite, which occurs at the core-mantle boundary and explains many anomalies inferred for that region.[citation needed]
Pressure "landmarks": pressure exerted by a fingernail scratching is ~0.6 GPa, typical pressures reached by large-volume presses are up to 30-40 GPa, pressures that can be generated inside diamond anvil cells are ~320 GPa, pressure in the center of the Earth is 364 GPa, highest pressures ever achieved in a shock waves are over 100,000 GPa.[citation needed]
This text uses material from Wikipedia, licensed under CC BY-SA