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 orientation ...

M. van der Klis (6), Rudy Wijnands (6) ((1) University of Michigan, (2) Harvard-Smithsonian CfA, (3) University of Cambridge, (4) MIT, (5) University of Maryland, (6) University of Amsterdam) Comments ...

It's magnetic. It's electric. It's photonic. No, this isn't a teaser for the latest superhero trio in a Marvel blockbuster. This is about our precious digital data. We need to store it somewhere ...

Disc motors are permanent-magnet stepping motors that exhibit performance comparable to that of hybrid motors. Rotors in disc motors are thin (typically less than 1-mm) discs, unlike the cylindrical ...

The computer's storage media prior to solid state drives (SSDs). Magnetic tape and disks were developed in the 1950s and commonly used together in companies for decades. Tape was the primary medium ...

Astronomers at the University of Warwick have discovered that black holes don't just consume matter—they manage it, choosing whether to blast it into space as high-speed jets or sweep it away in vast ...