Eternal 5D Data Chip Can Record All Of Human History,by Robin Andrews
photo credit: 180 million books can be stored on a single chip. agsandrew/Shutterstock
In order to preserve our stories, we used to carve and paint rudimentary images and basic text into stone tablets and onto the walls of caves. Nowadays, any of us can store hundreds of thousands of documents onto a cheap, thumb-sized USB, preserving them for decades. Scientists at the University of Southampton have taken this one extraordinary step further,announcing that they have developed a method to record data that could outlast the human race itself.
Back in 2013, a new type of data storing technology was debuted by the team at the university’s Optoelectronics Research Centre (ORC). An abstract presented at a conference revealed that a 300 kilobyte copy of a text file was recorded into a specialized form of glass, a small “chip” that had been manipulated by a laser.
Extremely fast and intense pulses of light altered the nanostructure of the silica glass chip, creating incredibly small “dots” that could store up to three individual bits of information. Strings of these dots were aligned in three layers that, when aligned on top of each other, were no thicker than the width of a human hair.
This data was said to have been preserved in five dimensions (5D): the three-dimensional position of the data dot within the glass was recorded, along with two additional dimensions provided by the intensity and the wave pattern (polarity) of the laser used to form the dot. Scientists were then able to read the encoded text file, which in this case was the 2013 conference abstract itself.
full story at:IFLScience