If you need help visualizing magnetic fields, these slow-motion video captures should educate or captivate you. Flux lines are difficult to describe in words, because magnet shape and strength ...

For nearly a decade, the American Association of Physics Teachers (AAPT) has been working to bring together resources through ...

The magnetic barrier that protects Earthlings from radiation almost collapsed some 565 million years ago. Here’s what saved ...

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...

The Earth’s magnetic field is why we are here today. It protects life from harmful radiation from the Sun and many other ...

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 ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

If these metals have not been turned into a permanent magnet they will still be attracted to a magnet if placed within a magnetic field. In this situation they act as a magnet - but only whilst in ...

[Peter] is currently working on a new version of his pocket-sized science tricorder, and he figured visualizing magnetic fields would be ... You can check out a video of this ‘camera’ in ...

We're all familiar with MRIs. MRI is magnetic. It's Magnetic Resonance Imaging. It's magnetic fields. And we know they're safe. Now, the same principles that apply to MRI have been actually ...

Eurasian reed warblers don’t just get a sense of direction from Earth’s magnetic field – they can also calculate their ...

Earth's magnetic field dramatically flipped a little more than 40,000 years ago. We can now experience this upheaval as an unnerving clatter interpreted from information collected by the European ...