Robotics

Developing a better ionic skin

In the quest to build smart skin that mimics the sensing capabilities of natural skin, ionic skins have shown significant advantages. They're made of flexible, biocompatible hydrogels that use ions to carry an electrical ...

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 ...

Robotics

Soft robotic origami crawlers

Materials scientists aim to develop biomimetic soft robotic crawlers including earthworm-like and inchworm-like crawlers to realize locomotion via in-plane and out-of-plane contractions for a variety of engineering applications. ...

Robotics

On-the-fly reconfigurable magnetic slime used as a robot

A team of researchers affiliated with a host of entities in China has created a type of magnetic slime that can be configured on the fly to perform a variety of robotic tasks. In their paper published in the journal Advanced ...

Energy & Green Tech

New ferrocenium-based anion-exchange membranes for fuel cells

Anion exchange membranes (AEMs) are semipermeable fuel cell components that can conduct anions but reject cations and gases. This enables the partition of substances that could chemically react with one another, thus allowing ...

Energy & Green Tech

Nuclear fusion: How excited should we be?

There's been tremendous excitement about recent results from the Joint European Torus (JET) facility in the UK, hinting that the dream of nuclear fusion power is inching closer to reality. We know that fusion works—it is ...

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Magnetic field

Magnetic fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The magnetic field, at a given point, is specified by both a direction and a magnitude (or strength); as such it is a vector field.

In special relativity, the electric field and magnetic field are two interrelated aspects of a single object, called the electromagnetic field. A pure electric field in one reference frame is observed as a combination of both an electric field and a magnetic field in a moving reference frame.

This text uses material from Wikipedia, licensed under CC BY-SA