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A comment on Fingers can detect nano-scale wrinkles even on a seemingly smooth surface. Parent comment

Re:Fingers can detect nano-scale wrinkles even on a seemingl... by sp332 on Tuesday January 14, 2014 @12:47PM (#7058459)
Well, we can feel bumps 13 nanometers high, as long as they are 760 nanometers long :)
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