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pulses speed signals
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Chop
a light pulse into 20 sections and you have
20 light pulses in the time it took you to
make one. Figure out how to switch them off
at will and you've effectively sped up communications
networks by 20 times.
Full
story |
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Gender
gap shows cyberspace bias
The slight advantage men have in orienting themselves
in space is magnified in virtual environments, and
it has nothing to do boys spending more time with
joysticks. For VR training and testing, proceed
with caution.
Software
lets appliances speak softly
Letting household appliances communicate with each
other seems like a good idea, and sound waves are
a good medium for in-home wireless networking. The
trick is to avoid filling your house with a bunch
of chatterboxes.
Molecular
shuttle gains light throttle
Nature is full of mechanisms for moving molecules
around. The challenge is figuring out how to control
them. In one approach, researchers fashion a fuel
pump from ultraviolet light.
Light-sensitive
memory does not fade
Near-field recording uses light to cram lots of
data onto disks. The key is figuring out how to
read the disks with lasers without scrambling the
data.
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