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There
is a lot of science left to be worked out
before we reach the heavily promoted hydrogen
economy. Using hydrogen as a practical fuel
for cars means coming up with ways of storing
larger quantities of the gas more safely,
and getting at it more easily. An extremely
porous material made from the same stuff as
sunscreen and soda bottles could be the answer.
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Flexible
display slims down
Flexible displays are a lot closer to everyday use
now that an electronic paper prototype has reached
the dimension of thick paper. The black and white
display has a good resolution and keeps its composure
when bent.
Simulated
evolution gets complex
Computers hold the promise of unraveling the details
of evolution because they can produce thousands
of generations of digital critters quickly, but
until recently simulated creatures have been too
simple to tell us much. A new crop of artificial
organisms is complicated enough to prove that Darwin
was right -- seemingly inconsequential changes over
many thousands of generations do indeed provide
enough fodder for complex functions to evolve. The
simulations also yielded a surprise -- harmful mutations
can have a big silver lining.
Model
explains market movements
The stock market follows the same pattern as earthquakes,
the Internet and intracellular networks. A mathematical
model plugs in the right numbers to account for
seismic shifts in the market. It looks like the
behavior of big players, rather than herd mentality,
causes the market's big swings. The bad news is
there isn't much that can be done about it.
News briefs
Big
qubits linked over distance... Software
maps group work... Magnesium
batteries show mettle... Nanotubes
smash length record... DNA
sensor changes color... Sensor
serves up body slices.
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