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世遺君木蟲 (小有名氣)
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看論文時看到這句話有點不理解
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Typical natural adhesion force per unit area has been experimentally measured to be 0.3–1.3 MPa (on gecko foot spatula), while a typical muscle stress in nature is between 0.01 and 0.2 MPa (peak 0.8 MPa). While the entire creature size shrinks down to micrometers (muscle cross section getting close to body-environment contact area), the adhesion becomes comparable with the muscle force, thus posing a great difficulty for any movement. 是不是數(shù)據(jù)有點問題?在natural狀態(tài)下,adhesion force就比muscle stress大,movement就應(yīng)該很困難啊。當creature size shrinks down時,adhension force應(yīng)該更大,怎么會becomes comparable with muscle force.是不是數(shù)據(jù)有點問題,但是這是advanced materials上的文章啊,各位大神求解。 |
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