Energy & Green Tech

New technique extends next-generation lithium metal batteries

Electric vehicles (EVs) hold great promise for our energy-efficient, sustainable future but among their limitations is the lack of a long-lasting, high energy density battery that reduces the need to fuel up on long-haul ...

Engineering

3-D-printed magnets help create more efficient electric motors

VTT Technical Research Centre of Finland is leading a European consortium 3DREMAG which is developing a new material suitable for 3-D printing of permanent magnets, which can be utilized in electric and hybrid vehicle motors. ...

Consumer & Gadgets

All wound up: A clearer look at electric guitar pickups

The electric guitar has been a core element of popular music for much of the past century. Pickups are the components that turn vibrations from the strings into electricity for sound and can be seen as the "heart" of the ...

Engineering

Rapid magnetic 3-D printing of human cells

Imagine being able to visit your physician, and instead of being given a one-size-fits-all treatment, you are given a specifically customized medication for your symptoms.

Electronics & Semiconductors

From bits to p-bits: One step closer to probabilistic computing

Tohoku University scientists in Japan have developed a mathematical description of what happens within tiny magnets as they fluctuate between states when an electric current and magnetic field are applied. Their findings, ...

Robotics

Microrobot collectives display versatile movement patterns

Researchers at the Max Planck Institute for Intelligent Systems (MPI-IS), Cornell University and Shanghai Jiao Tong University have developed collectives of microrobots which can move in any desired formation. The miniature ...

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Magnetism

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