This [article](https://www.southampton.ac.uk/news/2016/02/5d-data-storage-update.page)
from the University of Southampton’s Optoelectronic Research Centre claims that large amounts of data can be stored on small glass disks in five dimensions.
How does that work? Is it on some coordinate system like the (x,y,z) or spherical systems?
In: Technology
So I’m taking some educated guesses with some previous knowledge to come up with an answer here.
First – how to “create” a false dimension. One way is through scale invariance. This is a trick used to make your 2D screen appear to have 3D images in it. When you want to make something look further away, you make it smaller. When you want to make it look closer, you make it larger. Even though the scene is 2D, the relative size of everything on the screen gives the illusion of depth.
A second way to add in an extra dimension of information is similar to 3D glasses for movies. This utilizes two different images that are created in such a way that each lens will block out or only allow one of the two images. Old style used blue and red filters. The new style polarizes light clockwise and counter clockwise.
It is my understanding that the 4th and 5th dimension mentioned in that article are loosely the two above methods.
“The information encoding is realised in five dimensions: the size and orientation in addition to the three dimensional position of these nanostructures.”
**Source: your article (lol)**
The 5-dimensional discs [have] tiny patterns printed on 3 layers within the discs. Depending on the angle they are viewed from, these patterns can look completely different. This may sound like science fiction, but it’s basically a really fancy optical illusion. In this case, the 5 dimensions inside of the discs are the size and orientation in relation to the 3-dimensional position of the nanostructures. The concept of being 5-dimensional means that one disc has several different images depending on the angle that one views it from, and the magnification of the microscope used to view it. Basically, each disc has multiple layers of micro and macro level images
https://www.allaboutcircuits.com/news/5d-data-storage-how-does-it-work-and-when-can-we-use-it/
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