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 ...

In short, it’s just a strong, local magnetic field. Left – Magnetic field print head. Right – Drawing of internal structure of the print head.

The Rosetta-Philae spacecraft successfully touched down on Comet 67P/Churyumov-Gerasimenko, uncovering remarkable findings ...

The average Hackaday reader likely knows, at least in the academic sense, what a magnetic field looks like. But as the gelatinous orbs in our skull can perceive only a tiny fraction of the EM ...

Many migratory birds use Earth’s magnetic field as a compass ... appear to calculate their geographical position by drawing data from different distances and angles between magnetic fields ...

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 ...

One of the many unseen forces to which you owe your existence is magnetism. If it weren’t for the magnetic field that surrounds our planet, blocking cosmic radiation and solar wind, Earth would likely ...