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Morality
aside, being promiscuous does put you at greater
risk for disease. The same is true for computers
on the Internet. Vaccinating the most connected
Internet nodes, rather than a large, random
percentage of the population, turns out to
be an effective strategy for defeating computer
viruses.
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Electrified
water spins gold into wire
There are lots of ways to make microscopic wires.
A new approach is about as simple as it can get.
Sprinkle gold particles into water, add a couple
of electrodes and apply alternating current. The
water base adds the potential to connect cells to
circuits.
Virtual
reality gets easier
Sit down at the average desktop computer and you'll
probably be able to find your way around without
too much trouble. But how do you know what to do
in a virtual environment?
Laser
emits linked photons
A rudimentary laser spits out entangled pairs of
photons. It won't cut through steel or correct your
vision, but it could help you keep your secrets.
Dye
brightens micromachines
Making a microscopic sculpture with a laser and
a drop of liquid plastic is already impressive.
The researchers who pulled off this feat are now
making their creations glow.
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