Energy & Green Tech
In the realm of clean energy, metal halide perovskite solar cells (PSCs) have emerged as a focus, capturing significant attention for their extraordinary advancements. In just over a decade, their certified power conversion ...
Jan 26, 2024
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Energy & Green Tech
MIT researchers have developed a battery-free, self-powered sensor that can harvest energy from its environment.
Jan 18, 2024
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148
Robotics
"Soft robots," medical devices and implants, and next-generation drug delivery methods could soon be guided with magnetism—thanks to a metal-free magnetic gel developed by researchers at the University of Michigan and the ...
Jan 16, 2024
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69
Engineering
Mass spectrometers, devices that identify chemical substances, are widely used in applications like crime scene analysis, toxicology testing, and geological surveying. But these machines are bulky, expensive, and easy to ...
Jan 4, 2024
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138
Energy & Green Tech
An increasing number of electric cars are being sold, consequently raising the quantity of produced electric motors. At the end of their useful life, these electric motors are shredded and then recycled. The individual components ...
Jan 2, 2024
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15
Business
China said on Thursday that it would halt the export of a range of rare earth metal processing technologies, potentially hindering other countries in a crucial sector dominated by Beijing.
Dec 21, 2023
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Energy & Green Tech
Crews have installed what's billed as the nation's first wireless-charging public roadway for electric vehicles beneath a street just west of downtown Detroit.
Nov 29, 2023
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56
Computer Sciences
Face recognition technology emulates human performance and can even exceed it. And it is becoming increasingly more common for it to be used with cameras for real-time recognition, such as to unlock a smartphone or laptop, ...
Nov 13, 2023
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53
Hi Tech & Innovation
A form of brain-inspired computing that exploits the intrinsic physical properties of a material to dramatically reduce energy use is now a step closer to reality, thanks to a new study led by UCL and Imperial College London ...
Nov 13, 2023
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144
Engineering
Magnetic random-access memories (MRAMs) are data storage devices that store digital data within nanomagnets, representing it in binary code (i.e., as "0" or "1"). The magnetization of nanomagnets inside these memory devices ...
In physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.
Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.
This text uses material from Wikipedia, licensed under CC BY-SA
