technology similar to that found in your local
hospital's MRI machine, a research team has
stored a 1-kilobit digital image in a single
liquid crystal molecule. The achievement could
eventually lead to ultra-dense, molecular
data storage. First, the researchers need
to find a suitable solid molecule that can
be built into computer chips.
Fast quantum crypto demoed
Using the random fluctuations in the number of photons
that make up a laser beam, researchers have come
up with a way to encrypt messages and send them
at 250 megabits per second. The scheme allows those
who have already exchanged encryption keys to use
perfectly secure quantum encryption.
system heals itself
Your body does a good job of fixing itself. No such
luck for computer systems. But what if rather than
extending your wait in line, that Department of
Motor Vehicles database kept humming along when
hit by a virus or hacker? A prototype database system
points the way to more resilient software.
Styles of art, literature and music are often characterized
by their recurring motifs. It turns out that types
of networks can also be classified by motifs. The
Internet, food chains, social networks, electronic
circuits and biochemical processes all have repeating
elements that distinguish them. Studying these motifs
could be beneficial for a wide range of endeavors
from nanotechnology to the Middle East peace process.
makes nanotube memory
Oxygen is one of the most reactive elements. This
turns out to be useful for making memory devices
out of carbon nanotubes. Oxidizing bundles of nanotubes
makes the metallic tubes semiconducting, and produces
defects that are key to storing data.