Permanent bit on hard drives
Permanent bit on hard drives
The technology of hard drives does not last forever, without degrading. Depending on the conditions, some digital formats can begin to degrade before a decade. Therefore, some physicists at the University of California have developed a permanent structure at the molecular level. Putting an iron crystal inside a carbon nanotube has achieved a structure that can act as a bit. The application of electric current allows moving the crystal from one end to the other of the nanotube encoding numbers 0 and 1. This structure will also degrade over time, but scientists believe this will not happen for millions of years.
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