Far above the South Atlantic, Earth’s magnetic shield is thinning into a vast, lopsided bruise that now sprawls across an ...

A magnetometer is a device that measures magnetism: the direction, strength, or relative change of a magnetic field at a ...

Ferromagnetism, the kind displayed by metals including iron, cobalt and nickel, has its origin at the atomic level. In general, a magnetic field exists in the presence of an electric current. In a ...

Deep beneath our feet, something extraordinary is happening. Scientists have discovered that changes in Earth's core are ...

Winding a thin tape of superconducting material tightly enough can form a powerful magnet the size of a wristwatch. This could enable the creation of more sensitive nuclear magnetic resonance devices ...

Step into a world so tiny, it defies imagination -- the nanoscale. Picture a single strand of hair, now shrink it a million times. You've arrived. Here, atoms and molecules are the architects of ...