This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

The sphere-shaped nanobots, which are about a 20th of the size of a human red blood cell, are made from iron oxide, which ...

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 ...

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 ...

The ability to conduct heat is one of the most fundamental properties of matter, crucial for engineering applications.

As it turns out, the ability to nullify the powerful magnetic field from a bunch of rare earth permanent magnets is as simple as bringing in another set of magnets to cancel out the magnetic ...

Here we present a new approach for obtaining such images by magnetic resonance imaging (MRI ... the access of water to the first coordination sphere of a chelated paramagnetic ion is blocked ...