The pre-fab encoder disks don’t have individual magnets—they’re just a puck of magnetic slurry that gets its polarity on the assembly line. [Erich] reverse-engineered a disk and found the ...

A disk's surface is divided into concentric tracks (circles within circles), and the thinner the tracks, the more storage. The data bits are recorded as magnetic spots on the tracks in one ...

With the help of a powerful rare-earth alloy, magnet fishers pull garbage out of polluted waterways ...

What we are seeing is that as this black hole forms, the proto-neutron star’s surrounding disk will essentially pin its magnetic lines to the black hole,” says Ore Gottlieb, the study’s ...

The transfer takes place through a non-magnetic containment barrier without any physical connection. The couplings are opposing pairs of discs or rotors embedded with magnets. The use of magnetic ...

The difference here is that rather than low-friction sapphire bearings, this motor uses zero-friction magnetic levitation using pyrolyzed graphite discs. The diamagnetic material hovers above a ...

Physicists at RIKEN have demonstrated how ultrafast, low-power-consumption memory devices could be realized by replacing ...

What we are seeing is that as this black hole forms, the proto-neutron star's surrounding disk will essentially pin its ...

Magnetic tape and disks were developed in the ... but they all gave way to USB storage (see USB drive). See optical disc. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires ...