Point of a Needle!
This curious looking object is a field ion microscope photo of the tip of a very small tungsten needle. The little ball things are individual atoms. The large melted looking things are atoms that moved during the photo.
It's somewhat awesome when you think what you are actually seeing. Each atom is 270 picometres across. A picometer is 10-12 m across so, you can fit 3.7 million atoms of tungsten in one millimeter.
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On the linked site, click the photo to see a bigger one.
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Posted: September 29th, 2011 under default.
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