The so-called "hair" was in fact not the same, the hair is hair, hair is hair, they look very similar, but the texture is essentially different because of the different proteins and protein order, so you can see " body hair is a song, and the hair is straight "; but this is not absolute, and we often see some people are born" unsolicited volume ", because different people curl of hair is not the same, this is different from hair and protein contained in different related.
What are the common principles and curl hair kitchen steel ball have it? After careful study found that the cross-section of hair is round, not easy to bend, and the cross-section of hair is flat and easy to bend, so the steel ball design and hair is a principle, the cross-section of the wire is cut flat of achieve bending effect.
This article has copyright by the daily newspaper http://zhidao.baidu.com/daily Baidu know or provided by content partners authorized without written permission Daily Baidu know, any third party individual or organization may not be copied, reproduced excerpts, mirrors or in any other way use. Baidu know the daily chase responsibility and rights reserved. Contact mailbox zhidaoribao@baidu.com
Article Source: Baidu know daily (http://zhidao.baidu.com/daily)
Original link: http: //zhidao.baidu.com/daily/view id = 973?