Perhaps the most persistent nonsense in physics: the perpetual motion machine. Bad ideas come and go in physics. But there’s one bit of nonsense that is perhaps more persistent than all others: the ...

Motion of a charged particle in magnetic field is described by the change in the direction of motion. It is described as magnetic field which is capable of only changing direction of motion. Motion of ...

Conservation of energy isn’t just a good idea: It is the law. In particular, it is the first law of thermodynamics. But, apparently, a lot of people don’t really get that because history is replete ...

Magnetic Resonance Imaging (MRI) is an indispensable tool in modern medicine; however, its sensitivity to patient movement can significantly impair image quality. Motion correction techniques have ...

Smaller, streamlined electronics make lubricant-free, low-friction magnetic bearings feasible for more rotating machines. • Magnetic bearings support rotating shafts in five axes without solid or ...