Reference Terms
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Metal
In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds.
Note: The above text is excerpted from the Wikipedia article "Metal", which has been released under the GNU Free Documentation License.
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Matter & Energy News
March 8, 2025
Mar. 6, 2025 — Researchers have enabled a man who is paralyzed to control a robotic arm through a device that relays signals from his brain to a computer. He was able to grasp, move and drop objects just by imagining himself performing the ...
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Feb. 25, 2025 — Discarded food scraps, stray branches, seashells and many other natural materials are key ingredients in a system that can pull drinkable water out of thin air developed by ...
Feb. 25, 2025 — Researchers have developed a battery that can convert nuclear energy into electricity via light emission, a study ...
Latest Headlines
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Mar. 7, 2025 — A researcher succeeded developing highly accurate biometric authentication based on images of the palms of hands taken with a hyperspectral ...
Mar. 7, 2025 — Soaking up pollutants like a sponge, porous organic polymers (POPs) may be the key to reducing greenhouse gas emissions, according to ...
Mar. 7, 2025 — Producing high-performance titanium alloy parts -- whether for spacecraft, submarines or medical devices -- has long been a slow, resource-intensive process. Even with advanced metal 3D-printing ...
Mar. 6, 2025 — A new technique builds inorganic and polymer battery electrolytes at the same time, in the same vessel. This 'one-pot' in-situ method creates a controlled, homogeneous blend, pairing the conductivity ...
Mar. 6, 2025 — A collaborative research team has introduced a nitrogen-centric framework that explains the light-absorbing effects of atmospheric organic aerosols. ...
Mar. 6, 2025 — Sweden's radioactive nuclear waste will be stored in a sealed bedrock repository for 100,000 years. It will be hazardous for a very long time. So how can we ensure that humanity does not forget that ...
Mar. 6, 2025 — The enormous computing resources needed to train neural networks for artificial intelligence (AI) result in massive power consumption. Researchers have developed a method that is 100 times faster and ...
Mar. 6, 2025 — Energy remains a significant factor in industrial production processes. High levels of energy consumption make production more expensive and exacerbate the climate crisis. A new type of robot ...
Mar. 6, 2025 — Cancer treatment has advanced significantly, focusing on targeted approaches that destroy tumor cells while sparing healthy tissue. Researchers have ...
Mar. 6, 2025 — Researchers have developed the Automatic Process Explorer (APE), an approach that enhances our understanding of atomic and molecular processes. By dynamically refining simulations, APE has uncovered ...