Healthy hair is strong, about equivalent to copper wire of the same diameter.
So the question is how well are the hairs anchored in the scalp skin, not much studied. Q. Three English words are two, to and too. A. Forget zero in the Roman system. We still often hesitate to think of zero as a number, says Biola University mathematician Walt Stangl. Actually, hearing babies also babble a little with their hands, and deaf babies babble a little with their mouths, but not fully developed.