A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire. The compelling 2021 study tells the ...

More information: Aldo Spatafora-Salazar et al, Aligned colloidal clusters in an alternating rotating magnetic field elucidated by magnetic relaxation, Proceedings of the National Academy of ...

Supernova debris speeds up neutron stars, strengthening magnetic fields. This explains why low-intensity magnetars still produce bursts.

That could mean the neutron star itself is still rotating hundreds of times a second, but its overall magnetic field—similar to the one that encircles the Earth—is just much slower in behavior.

His design is conceptually similar to an induction cooktop, where alternating magnetic fields create eddy currents that heat metal cookware. But rather than using alternating currents through ...

or “driving,” such as the alternating of positive or negative magnetic field or pulling on a material from one side and then ...

Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.

But, there may be another way, albeit a rather special case, where a magnet can not only be levitated, but locked in place using a rotating magnetic field. The video shows a demonstration of how ...