Blog Heap o'Transport Links 27 April 2009

| All Dates |
Blog-Heap links regarding transportation and related infrastructure,
also energy, because it takes energy to transport,
and virtuality, because telepresence saves on transpresence.

Digital Future is Now

GE Crams 500GB of Data on DVD with Holographic Tech
pcworld.com Mon 2009 Apr 27, 7:33pm

General Electric Global Research says it has figured out a way to put up to 500GB of data on a regular-sized DVD disc under laboratory conditions. GE says its breakthrough was achieved by writing 3-dimensional patterns that represent data onto a disc made of highly reflective material. The disc then acts as a mirror that makes it possible for a laser to pick up the entire piece of data. GE's process doesn't just put information onto the surface of the disc -- as DVDs and CDs do -- but etches the micro-holographic patterns below the surface of the disc as well.