If you took introductory physics, you learned about the “fundamental forces.” It goes something like this: All interactions ...

When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...

How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the wire, similar to that surrounding a bar magnet. Magnets are ...

Scientists know well how conventional materials conduct heat. However, things are not as straightforward under extreme ...

A coil of wire, or solenoid, consists of a wire coiled up into a spiral shape. When an electric current flows, the shape of the magnetic field is very similar to the field of a bar magnet.

Pictures may enliven us, but other data, such as information about magnetic fields, add a huge amount to our understanding of ...

Quasiparticles are collections of particles (and, in some cases, field lines) that can be described mathematically as if they were a single particle with properties that are distinct from their ...

Merging some esoteric physics principles with an advanced instrument creates a magnetic microscope with resolution better ...