Scientists measured a chorus wave emerging from an unexpected place, and confirmed a key piece of a theory about how these ...

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...

As sunspots emerge on the sun's surface close to its equator, their orientations will match the old magnetic field, while sunspots forming closer to the poles will have a magnetic field matching the ...

Multiferroic materials, in which electric and magnetic properties are combined in promising ways, will be the heart of new ...

Satellites have managed to detect faint electromagnetic signals generated by ocean tides, suggesting that space-born sensors ...

Multiferroic materials, in which electric and magnetic properties are combined in promising ways, will be the heart of new ...

ESA's Swarm mission, utilizing the faint magnetic signals generated by Earth's ocean tides, offers groundbreaking insights ...

While technically not an electromagnet, it is possible to build ... The coil is fed with AC. The magnetic field from the coil induces an opposite field in the copper ring that is out of phase ...

This can happen because the electric and magnetic fields of the radiation in chorus waves rotate mainly in a clockwise direction and the electrons spiral around Earth’s magnetic field in the ...

Scientists have captured faint magnetic signatures resulting from the tidal movement of seawater across the planet — and they ...