4 posts tagged with disk.
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A Disk Around a Young Star

The resolution of a telescope (how much fine detail it can see) is proportional to the wavelength of light divided by the size of the telescope. Since radio wavelengths are many times larger than optical wavelengths, radio telescopes like the GBT and Arecibo are large compared to optical telescopes. Even so, the resolution of radio telescopes is worse, and you rarely see radio images as beautiful as those produced by the Hubble Space Telscope. That has now changed. [more inside]
posted by sedna17 on Nov 6, 2014 - 31 comments

Phantom of the Floppera

Toccata and Fugue as played by floppy disc drives. SLYT [more inside]
posted by tim_in_oz on Feb 10, 2011 - 42 comments


What 13,500 pages micro-etched into nickel looks like. [more inside]
posted by googly on May 22, 2009 - 35 comments

Illustrated Histories of Various Recording Technologies

Illustrated Histories of Various Recording Technologies
posted by carter on Apr 22, 2008 - 13 comments

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