The coils, scavenged from those dancing flowerpot ... The diamagnetic material hovers above a rare-earth ring magnet, supporting a slender vertical shaft that holds the rotor and another magnetic ...

The Qi2 charging standard is based on Apple's MagSafe technology, which allows devices to feature a ring of magnetic coils ...

The idea is to pass a small spool of magnet wire through ... [Sandeep] used a plywood ring as a stand-in, but the results are satisfying enough to make any manual coil-winder envious.

The variable reluctance sensor is often used to detect the speed and motion of targets such as reluctance rings ... a magnet utilizing AC magnetic fields generated through an inductive coil ...

The Bond Touch 4 bracelet lets you send “touches” to loved ones, and the updated version includes better ‘touch sensitivity.’ ...

Magnetic field instruments are devices used to measure the magnetic field or flux around permanent magnets, coils, and electrical devices. They include meters, gauges, sensors, recorders, and other ...

Slip rings maintain constant contact with the same sides of the coil As one side of the coil moves up through the magnetic field, a potential difference is induced (created) in one direction.

The new headphones use the same driver technology as their cheaper sibling, but Austrian Audio says it has taken steps to ...

In a dynamo, a split ring commutator changes the ... of rotation increasing the strength of the magnetic field increasing the number of turns on the coil The diagram shows four different positions ...