We present analytical formulations, based on a coulombian approach, of the magnetic field created by permanent-magnet rings. For axially magnetized magnets, we establish the expressions for the three ...

An alternating magnetic field-responsive controlled-release imidacloprid nanoplatform (MRCIN) was fabricated to effectively promote the release of IM and improve utilization efficiency.

Lane Kugler has forgiven his son-in-law for stabbing to death his only daughter and two grandsons. But he has nothing but ...

A novel metamaterial emits significantly more heat than it absorbs under a magnetic field, breaking Kirchhoff’s law.

New results published in the journal Physical Review Letters detail how a specially designed metamaterial was able to tip the ...

It is possible to make a material emit more radiation than it absorbs, violating the laws of physics in a way that could make ...

Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

External magnetic fields have been used to vertically align ensembles of silicon microwires coated with ferromagnetic nickel films. X-ray diffraction and image analysis techniques were used to ...

New study has explored a technique called Magnetotellurics (MT) which electromagnetic signals – tiny electrical currents and magnetic fields in the ground – to map underground structures ...

Their magnetic sense is so sharp it can even detect small changes in the planet’s magnetic field, acting as a natural map no matter how far they’ve wandered. Salmon migrations are not just feats of ...

A complete mathematical formalism is introduced to describe the excitation of electrical eddy currents due to a time-varying magnetic field. The process works by applying a quasistatic approximation ...

Scientists have long suspected the fish can travel by sensing the magnetic field, but no one knew how—until now.