Couldn't you store more data in a color image? Just curious.
PaperBack – How to store data on a single A4/Letter sheet
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Re: PaperBack – How to store data on a single A4/Letter sheet
#22So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.
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Re: PaperBack – How to store data on a single A4/Letter sheet
#23Couldn't you store more data in a color image? Just curious.
Probably, Microsoft did something like that (and failed to gain popularity) http://tag.microsoft.com/what-is-tag/home.aspx
Re: PaperBack – How to store data on a single A4/Letter sheet
#24TRivia: If the printer can also output white ink, and the the encoding algorithm knows any dirt on the paper, then the capacity of the paper is the same even if the paper is dirty. http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=105665...
Re: PaperBack – How to store data on a single A4/Letter sheet
#25So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.
When I was in college I worked in a lab making tiny circuits used for testing a nanorotor they were working on.
First we would put a small piece of glass in a sputter deposition machine, which would deposit a thin film of gold on the surface. Then in a clean room, the gold film would be covered by a photoresistive chemical and placed in a machine similar to an enlarger in a darkroom, except it would shrink the image instead of enlarging. An A4 sized transparency containing the circuit design would be placed in the machine, which was optically shrunk to the (~2cm x 2cm) size of the glass and exposed with UV light. Finally, it was processed with chemicals to etch away the exposed gold, leaving the gold microcircuit traces.
I'm certain you could use this process to encode data with a scheme like PaperBack, and if you could find a substrate lighter than glass that both resisted delamination and could survive the etching chemical bath, the gold film could probably last for 100k+ years.
Re: PaperBack – How to store data on a single A4/Letter sheet
#26So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.
When I was in college I worked in a lab making tiny circuits used for testing a nanorotor they were working on. First we would put a small piece of glass in a sputter deposition machine, which would deposit a thin film of gold on the surface. Then in a clean room, the gold film would be covered by a photoresistive chemical and placed in a machine similar to an enlarger in a darkroom, except it would shrink the image…
Etching the data into silicon wafers has been done before:
https://en.wikipedia.org/wiki/Teeny_Ted_from_Turnip_Town
It does require quite a bit more equipment to read back, however.
Re: PaperBack – How to store data on a single A4/Letter sheet
#27Earlier quoted context omitted.
When I was in college I worked in a lab making tiny circuits used for testing a nanorotor they were working on. First we would put a small piece of glass in a sputter deposition machine, which would deposit a thin film of gold on the surface. Then in a clean room, the gold film would be covered by a photoresistive chemical and placed in a machine similar to an enlarger in a darkroom, except it would shrink the image…
Etching the data into silicon wafers has been done before: https://en.wikipedia.org/wiki/Teeny_Ted_from_Turnip_Town It does require quite a bit more equipment to read back, however.
One nice thing about the gold-on-glass idea is that it can be read with a simple slide projector or similar. It's small but not ridiculously so.
Re: PaperBack – How to store data on a single A4/Letter sheet
#28This reminds me of http://ronja.twibright.com/optar/
Note, Paperback has over twice the density of Optar.
Not that I'm complaining. I bookmarked both because I think they're nifty, despite "media abuse" being the best tag I could think of.
Re: PaperBack – How to store data on a single A4/Letter sheet
#29Couldn't you store more data in a color image? Just curious.
There are likely many ways to increase the data capacity of a piece of paper.
The information capacity of the paper would depend highly on the printer, the environment the paper had to survive, and the camera.
Re: PaperBack – How to store data on a single A4/Letter sheet
#30So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.
Concrete? Perhaps a 3D printer could make a mold from a data format similar to this one, even one in 3D..
http://www.instructables.com/id/How-to-3D-Print-Molds-for-Sm...