Engineering
A small team of engineers at Eindhoven University of Technology in the Netherlands, working with a colleague from the Max Planck Institute for Intelligent Systems in Germany, has found a way to create tiny artificial cilia ...
Internet
Researchers at Pohang University of Science and Technology (POSTECH) have advanced online security by integrating an AI-based metasurface with oblique helicoidal cholesteric liquid crystals.
Apr 15, 2024
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21
Computer Sciences
Those meh photos that are too grainy can be given a new lease on digital life through a method worked up by researchers who found a way to cut the noise and artifacts. Noise in this context refers to visual distortion, as ...
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
Electronics & Semiconductors
Implantable biomedical devices—like pacemakers, insulin pumps and neurostimulators—are becoming smaller and utilizing wireless technology, but hurdles remain for powering the next-generation implants. A new wireless charging ...
Feb 21, 2024
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66
Robotics
ETH scientists have developed cube-shaped magnetic building blocks that can be assembled into two-dimensional shapes and controlled by an external magnetic field. They can be used for soft robotics applications.
Nov 11, 2019
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30
Electronics & Semiconductors
Researchers are a step closer to realizing a new kind of memory that works according to the principles of spintronics which is analogous to, but different from, electronics. Their unique gallium arsenide-based ferromagnetic ...
Nov 30, 2020
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162
Robotics
A new type of all-terrain microbot that moves by tumbling could help usher in tiny machines for various applications.
Feb 14, 2018
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30
Energy & Green Tech
The development and utilization of rural biomass energy is an important strategy to reduce the use of fossil fuels and resulting carbon emissions.
Sep 20, 2022
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6
Engineering
Researchers at Caltech have developed a prototype miniature medical device that could ultimately be used in "smart pills" to diagnose and treat diseases. A key to the new technology—and what makes it unique among other ...
Sep 12, 2017
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20
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.
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