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switch sets up light logic
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If
all-optical computers are ever going to become
reality, researchers have to shrink bulky
fiber-optic cables down to chip size and make
tiny optical transistors. Making photons jump
through the right hoops on a chip ultimately
means a huge increase in computing speed.
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Light
computer runs quantum algorithm
Quantum computers get their speed from interference.
But ordinary lightwaves are pretty good at interfering
with each other, too, and some researchers are looking
to make quantum-like computers without the quantum
mechanics.
Five
percent of nodes keep Net together
How many computers do you have to crash to bring
down the Internet? The answer is about five and
a half million. Of course, they have to be the right
five and a half million.
Prototype
shows electronic paper potential
Electronic ink made a big splash a few years ago.
But it isn't too useful all by itself. A prototype
of electronic paper is starting to fill in the picture.
Now if they can just boost the resolution and refresh
rate a bit...
Lasers
spin microscopic objects
Optical tweezers have been around for years, allowing
lab technicians to snatch hapless bacteria in laser
beams. Researchers in Scotland give the idea a new
twist -- literally.
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