Beneath that is 1,800 miles of mostly solid mantle, then another 1,400 miles of molten outer core, and finally, a dense sphere ... a magnetic field. As you may recall from Physics 101, a changing ...

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 ...

Using an XMC1100 microcontroller development board and a TLV49 3D magnetic sensor, the device is able to track the poles of a magnet in real-time and produce an approximation of what the field ...

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 ...

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 ...

They sense weak magnetic fields via gaseous forms of alkali metals, such as rubidium or caesium. Within the devices these atoms behave like tiny magnets and are aligned with a beam of laser light ...

The world’s first superconducting planar coil magnet array successfully created and controlled stellarator-relevant magnetic field structuresThe ...

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 ...