In the ergosphere – a region outside a rotating black hole where space-time is dragged ... surrounded by three layers of metal coils generating a magnetic field that rotates at roughly the same speed ...

In this instance, the slip rings allow the current to be transmitted from the rotating coil to the external circuit. As one side of the coil moves up through the magnetic field, a potential ...

Researchers have created the first laboratory analog of the 'black hole bomb', a theoretical concept developed by physicists ...

These coils create a rotating magnetic field and act as a mirror, reflecting the magnetic field back to the cylinder. The rotational speed of the cylinder and the magnetic field meet the Zeldovich ...

If you've ever watched a flock of birds move in perfect unison or seen ripples travel across a pond, you've witnessed nature's remarkable ability to coordinate motion. Recently, a team of scientists ...

But, there may be another way, albeit a rather special case, where a magnet can not only be levitated, but locked in place using a rotating magnetic field. The video shows a demonstration of how ...

it moves parallel to the magnetic field, producing no force. This would tend to make the motor come to a stop, but two features allow the coil to continue rotating: ...