bazodedo
Joined 3 years ago
Joined 3 years ago
I suppose the only downside is cost. So, the actual problem, is how to tax the shared resource that is our LEO. Aside from that, wed also want to incentivize not leaving space debris in orbit. Require insurance, and perhaps rent for orbital trajectories?
But, without working international order, theres no way thats gonna happen...
I was wondering why we dont have something like that.
Unfortunately, it turns out that, with Blue-ray discs, we're already approaching the optics limit of what visible light (easily) gets us, and they're already cheating with multi-layer storage for the 100GB option. Thus youd need a complicated EUV or electron beam setup for smaller feature sizes.
Say i want my 1PB disk in cd format. A cd has r=6cm. Thus A~=100cm^2. A/1PB= 1.25e-18m^2= 1.25 nm^2, or about 5x5 atoms per bit :/
I guess we're better off by just scaling up flash production and stacking those elements vertically.
Edit: Turns out we need volumetric storage. By using a material that is transparent to the laser wavelength, by intersecting two precisely focussed beams, the local intensity suffices to absorb two photons at once (stops being transparent) allowing you to select a volumetric point to interact with. This allows a couple hundred of layers until refraction breaks our resolution.
Regarding the amount of rare earth required to make just one solar panel, i was surprised to find out that effectively all you need is something called 'silicon' as well as an initial investment in energy to bake the thing.
It just so happens to be that, according to google, this 'silicon' stuff is quite abundant and can for example be found in desert sand.
Since you can stack those fusion reactors vertically, i suppose they'd come out on top in the power/sqft category.