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| Quantum
effect moves machine
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Nothing
is normal about the quantum world, not even
nothing. An all-pervasive quantum energy that
springs from nothing is becoming a factor
for the smallest of machines. It could power
moving parts, but it could also gum up the
works. Bell Labs has built a tiny device to
demonstrate the effects of zero point energy.
Full
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Software
speeds gene comparison
Biologists itching to compare the human genome to
that of, say, the dung beetle, might have an easier
time of it thanks to software that makes gene comparison
both faster and cheaper.
Agents
learn from traveling salesman
A computer scientist aims to give intelligent agents
the ability to make quick decisions when faced with
complicated problems. The key is an algorithm designed
to help the proverbial traveling salesman plan his
route.
Harder
chips make more sensitive sensors
Silicon carbide is more durable and vibrates more
quickly than your run-of-the-mill semiconductors,
but it's difficult to work with. Researchers at
Caltech take a tip from metalworkers to shape the
tough material.
Silver
atoms shine red and green
Tiny clusters of silver atoms become florescent
when they're hit with the right kind of light. Someday
this property could lead to phenomenally high capacity
data storage devices.
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