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Why only particles of micrometer sized scale and above?
It seems very strange to me why there should be a limit at the micrometer sized scale. I put a {{fact}} tag after that sentence. Discussion for the tag goes here. —Kri (talk) 14:14, 20 August 2012 (UTC)[reply]
Okay I see there were not much of a discussion. Maybe it's better to just remove uncited, dubious statements directly, like Glrx did. —Kri (talk) 13:38, 22 August 2012 (UTC)[reply]