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A
privacy scheme hides your identity by letting
you melt into the walls. The idea is to make
sensor networks automatically reduce the accuracy
of the location data they report whenever
anyone is in danger of standing out. The goal
is to allow people to be monitored without
any one person being tracked.
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Cheaper
optics-chip link on tap
One of the best ways to speed up the Internet would
be to extend all the way to the home the fiber-optic
lines that make up the Net's backbone. One piece
of the fiber-to-the-home puzzle is a low-cost way
of converting light pulses to electrical signals.
A semiconductor that can be shaped in low heat could
do the trick.
Logic
clicks with ratchet
Microscopic electrical tornadoes pop up and skitter
around superconductors whenever magnetic fields
go through them. Scientists can corral these superconductor
vortices, and one research team has found that getting
a vortex to move between opposite ends of a tiny
trench is a way to flip a bit between 1 and 0. Making
the trenches the right shapes and in the right places
could lead to very fast computer logic circuits.
Electricity
shapes nano plastic
Plastic is a popular material for electronics these
days because it's light and flexible. But today's
chipmaking processes tend toward hard crystals,
not soft polymers. A method that yields microscopic
plastic structures could help, and it's based on
a readily-available resource -- electricity.
News briefs
Experience
handed across Net... 3D
display goes vertical... Gel
yields nanotube plastic... Nano
toolbox gains carbon cones... Jolts
mix micro fluids... Jet-laser
tandem prints gold.
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