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Laser and hologram method
When it comes to nanodevices, scientists have no problem cooking up
interesting designs.  However, when it comes to actually assembling such
machines on a nanoscale, it can be a daunting task.

A breakthrough from Purdue University offers up a new technique that may
be extremely useful in such nanoassembly.  The new method uses lasers
and holograms to position multiple nanoparticles within seconds, much
faster than previously possible.  The method could also be very helpful to
labs on the chip, which need to direct tiny molecules to tiny test locations.
[1]

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thick insulation wound
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the brain uses to send
commads.

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energy sources.

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[1] http://www.dailytech.com/New+Methods+Combines+Lasers+and+Holograms+for+Nanoassembly/article13580.htm

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"Victoria crater" Image Credit: NASA/JPL/Cornell  SPACE