Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth.

The magnetized rocks of Earth's crust and mantle, also known as the upper lithosphere, accounts for generating 6 percent of ...

Two German physicists have unveiled a compact magnet layout that outperforms the famed Halbach array, delivering stronger, ...

New research published in Physical Review Letters suggests that superconducting magnets used in dark matter detection ...

Apples and magnet. For this experiment you need to build suspension from chop sticks. Put 2 apples at opposite ends of the ...

Prior to about 3.56 billion years ago, the dynamo effect from these factors combined created a magnetic field, albeit one much weaker than Earth’s present magnetic field (which measures about 50 ...

Miniature robot takes flight using magnetic fields, no onboard power Just 21 milligrams - and it flies like a bee By Skye Jacobs April 3, 2025, 11:25 15 comments ...

As you may recall from Physics 101, a changing magnetic field (like when you slide a bar magnet through a copper coil) induces an electric current. At planetary scale, Earth’s magnetic field induces ...

In fact, China debuted a hybrid resistive/superconducting magnet in 2022 that achieved a 45.22 tesla field. On the other side of the world, the US National Lab's mini superconducting prototype ...

The magnetic field controls the shape of that atmosphere, and it controls where the plasma, where the ‘stuff’ is.” Measuring the magnetism of this region typically requires large, ...

Strong magnets are essential for the type of fusion power being pursued by CFS and others. For every doubling of the strength of a magnetic field, the power output of one reactor design increases ...