The Rosetta disc,designed and manufactured by the Long Now Foundation is so impressive I will let the post about it being made a reality speak for itself.

[The] problem of long-term digital storage seemed a crucial hurdle for any civilization trying to act generationaly. How could a society think in terms of centuries unless there was a reliable way to transmit and store its knowledge over centuries? This puzzle was the focus of a conference hosted by Long Now in 1998, dedicated to technical solutions for Managing Digital Continuity. At this meeting Brewster Kahle of the Internet Archive suggested a new technology developed by Los Alamos labs, and commercialized by the Norsam company, as a solution for long term digital storage. Norsam promised to micro-etch 350,000 pages of information onto a 3-inch nickel disk with an estimated lifespan of 2,000 -10,000 years.

This business side of the disk is pure nickel. Picking it up you would not be aware there were 13,500 pages of linguistic gold hiding on it. The nickel is deposited on an etched silicon disk. In effect the Rosetta disk is a nickel cast of a micro-etch silicon mold. When the disk is held at the right angle the grid array of the pages form a slight diffraction rainbow. You need a 750-power optical microscope to read the pages.

The Rosetta disk is not digital. The pages are analog “human-readable” scans of scripts, text, and diagrams. Among the 13,500 scanned pages are 1,500 different language versions of Genesis 1-3, a universal list of the words common for each language, pronunciation guides and so on. Some of the key indexing meta-data for each language section (such as the standard linguistic code number for that language) are displayed in a machine-readable font (OCRb) so that a smart microscope could guide you through this analog trove.

Our hope is that at least one of the eight headline languages can be recovered in 1,000 years. But even without reading, a person might guess there are small things to see in this disk.

A Rosetta Disc was also sent up in the European Space agency’s Rosetta Space probe launched in 2004.

The rest of the post is here