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Mar 18, 2009: Even rounder thing
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03-18-2009, 05:54 AM
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SPUCK
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Join Date: Oct 2006
Posts: 1,911
A nanometer(nm) is 0.000,000,001 meters.
An Angstrom is 1/10 of a nanometer. A silicon crystal has a nucleus to nucleus spacing of 5 Angstroms. Or 0.5nm.
So an "atomic layer" is about 0.5nm.
40 atomic layers ~ 20nm.
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