The filings align themselves along the lines of magnetic force surrounding the magnet ... The current flows in one direction as the magnet is pushed in, and in the other direction as the magnet ...

So the direction of a magnetic field at any point is the direction of the force on the north pole of the magnet at that point. It is possible to differentiate coins by testing them with a magnet.

these materials generate a magnetic field in the opposite direction, resulting in a repulsive force—they push away from the field. Therefore, objects made of diamagnetic materials can float ...

But measuring what direction those fields are pointing ... in magnetic fields in environments shielded from outside magnetic forces. A different set of OPMs can be used outside these rooms ...

Altermagnetism was first theorized in 2019 and experimentally confirmed in 2024 by researchers at Mainz University. It ...

What is Magnetic Force Microscopy (MFM)? Magnetic Force Microscopy (MFM) is a scanning probe microscopy technique that allows the imaging and characterization of magnetic properties of materials at ...

A new strategy for measuring magnetic fields could one day lead to a host of new quantum sensors—from tools that might map out the activity of the human brain to devices that could help airplane ...