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prostheticknowledge:

The Rosetta Disk

Long Now Foundation’s Rosetta Project have created a miniature archive featuring all of the world languages laser etched onto a small disc that can fit in your hand:

The Rosetta Disk is intended to be a durable archive of human languages, as well as an aesthetic object that suggests a journey of the imagination across culture and history. We have attempted to create a unique physical artifact which evokes the great diversity of human experience as well as the incredible variety of symbolic systems we have constructed to understand and communicate that experience.

The Disk surface shown here, meant to be a guide to the contents, is etched with a central image of the earth and a message written in eight major world languages: “Languages of the World: This is an archive of over 1,500 human languages assembled in the year 02008 C.E. Magnify 1,000 times to find over 13,000 pages of language documentation.” The text begins at eye-readable scale and spirals down to nano-scale. This tapered ring of languages is intended to maximize the number of people that will be able to read something immediately upon picking up the Disk, as well as implying the directions for using it—‘get a magnifier and there is more.’

… The pages are microscopically etched and then electroformed in solid nickel, a process that raises the text very slightly - about 100 nanometers - off of the surface of the disk. Each page is only 400 microns across - about the width of 5 human hairs - and can be read through a microscope at 650X as clearly as you would from print in a book. Individual pages are visible at a much lower magnification of 100X. The outer ring of text reads “Languages of the World” in eight major world languages.

Here is a video by Scott Oller about the Rosetta Project:

Rosetta from Scott Oller on Vimeo.

You can find out more about the project here

Filed under rosetta scott oller video science languages disk laser

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Discovery of the positron. This cloud chamber image was taken during  the 1932 work by US physicist Carl David Anderson (1905-1991) that led  to the discovery of the positron. This particle is the opposite of the  electron and the first antimatter particle to be discovered. The image  shows the curved track of a positive particle entering the cloud chamber  from below. The particle is known to be positive because of the  direction in which it bends in the chamber’s magnetic field. The track  is too faint to be caused by a proton, and is more like an electron’s  track, hence it had to be the predicted positron. These results were  published in 1933

Discovery of the positron. This cloud chamber image was taken during the 1932 work by US physicist Carl David Anderson (1905-1991) that led to the discovery of the positron. This particle is the opposite of the electron and the first antimatter particle to be discovered. The image shows the curved track of a positive particle entering the cloud chamber from below. The particle is known to be positive because of the direction in which it bends in the chamber’s magnetic field. The track is too faint to be caused by a proton, and is more like an electron’s track, hence it had to be the predicted positron. These results were published in 1933

Filed under physics dirac positron antymatter experiment science