With a clever design, researchers have solved eddy-current damping in macroscopic levitating systems, paving the way for a ...
Two German physicists have reimagined how to create powerful and uniform magnetic fields using compact permanent magnets. By overcoming the limitations of the well-known Halbach array, which works ...
A freely suspended magnetic dipole in a uniform magnetic field always turns to align parallel to the external magnetic field. A magnetic dipole that is free to move in a non‐uniform magnetic field can ...
Using a technique similar to the magnetic resonance imaging (MRI) widely applied by hospitals for medical diagnosis but at a resolution 10,000 times greater, physicists at Northwestern University have ...
Scientists and engineers have used uniform magnetic fields to drive iron-bearing nanoparticles to metal stents in injured blood vessels, where the particles deliver a drug payload that successfully ...
Key learning points Properties of magnets What are magnetic fields? Magnetic fields lines are invisible but they fill the space around a magnet where the magnetic forces work on magnetic materials, ...
EVANSTON, Ill. — Using a technique similar to the magnetic resonance imaging (MRI) widely applied by hospitals for medical diagnosis but at a resolution 10,000 times greater, physicists at ...
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