'5D' discs can store data until well after the sun burns out
They're like Superman's memory crystals, but realzobrazit v plné velikosti
Researchers at the University of Southampton's Optical Research Center announced on Tuesday that they've perfected a technique that can record data in 5 dimensions and keep it safe for billions of years. The method etches data into a thermally stable disc using femtosecond laser bursts. The storage medium itself holds up to 360 TB per disc, can withstand temperatures up to 1000 degrees C and are estimated to last up to 13.8 billion years at room temperature without degrading.
Each file is comprised of three layers of nanoscale dots. The dots' side and orientations, as well as their position within the three standard dimensions, constitute its five dimensions. These dots change the polarization of light travelling through the disc which is read using a microscope and polarizer.http://www.engadget.com/2016/02/16/5d-discs-can-store-data-until-well-after-the-sun-burns-out/