A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

Superconductors aside, these devices are pretty much all operating in the same way; an object with a permanent ... magnet can not only be levitated, but locked in place using a rotating magnetic ...

Who knew that magnetic fields could be so useful? Astronomers are able to use magnetic fields to map our environment within ...

How it works Artist’s impression of how an ultrafast disruption of superconductivity in a YBCO thin film triggers an abrupt ...

Not electromagnets, but those permanent magnet fixtures like the ones that ... As it turns out, the ability to nullify the powerful magnetic field from a bunch of rare earth permanent magnets ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed.

This pioneering technology marks the world's first achievement in this field. The findings are ... However, conventional ...

Neutron star mergers are collisions between neutron stars, the collapsed cores of what were once massive supergiant stars.

A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth's magnetic field that let more ...