Reference Terms
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Magnetic field
In physics, a magnetic field is that part of the electromagnetic field that exerts a force on a moving charge.
Note: The above text is excerpted from the Wikipedia article "Magnetic field", which has been released under the GNU Free Documentation License.
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Matter & Energy News
December 1, 2024
Nov. 12, 2024 Global carbon emissions from fossil fuels have reached a record high in 2024, according to new ...
Nov. 6, 2024 Thin, flexible device could help people with visual impairments 'feel' surroundings. Device comprises a hexagonal array of 19 actuators encapsulated in soft silicone. Device only uses energy when actuators change position, operating for longer ...
Oct. 23, 2024 In the face of rising CO2 levels, scientists are searching for sustainable ways of pulling carbon dioxide out of the air, so-called direct air capture. A new type of porous material, a covalent organic framework (COF) with attached amines, stands ...
Oct. 17, 2024 Researchers have developed a novel training protocol for brain-computer interfaces in a study with rhesus monkeys. The method enables precise control of prosthetic hands using signals from the brain alone. Researchers were able to show that the ...
Latest Headlines
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Nov. 28, 2024 The increased use of a chemical compound to replace TNT in explosive devices has a damaging and long lasting effect on plants, new research has ...
Nov. 27, 2024 Using 'DNA origami' scientists have built innovative nanostructures that pave the way for advanced robotics that can deliver targeted drugs -- plus ...
Nov. 27, 2024 Researchers' new polymer strategy shifts a centuries-old engineering paradigm with a molecular design that doesn't sacrifice stretchability for ...
Nov. 22, 2024 A novel hydrogen sensor offers a promising solution for real-time hydrogen leak detection, addressing safety concerns in industrial applications. This sensor, made with nano-patterned cupric-oxide ...
Nov. 26, 2024 This unobtrusive, leaf-mounted sensor saves time and improves productivity by remotely monitoring the health of plants in ...
Nov. 27, 2024 A tiny, four-fingered 'hand' folded from a single piece of DNA can pick up the virus that causes COVID-19 for highly sensitive rapid detection and ...
Nov. 27, 2024 A research team has found a way to make more efficient the desorption of water-adsorption polymers used in atmospheric water harvesting and desiccant air ...
Nov. 27, 2024 A team of physics educators is focusing on a new approach to teaching quantum physics in schools. Traditional classroom teaching has tended to focus on presenting the history of the origins of ...
Nov. 25, 2024 Researchers have clarified the conditions under which large numbers of 'squishy' grains, which can change their shape in response to external forces, transition from acting like a solid to acting ...
Nov. 26, 2024 Creating and controlling quantum dots via electrical methods, is likely to lead to new frontiers in the quest to develop stable and efficient qubits. ...