Researchers
at Oregon State University have developed a model that explains how geckos move
and cling on to walls and ceiling. Geckos, spiders and some other insects have
branched hairs called “seta” that can instantly turn their stickiness on and
off, and even “unstick” their feet without using any energy.
The “smart”
adhesion system allows the geckos to run at 20 body-lengths per second. The
scientist added that the forces provided by the seta could actually support 50
times the body weight of the gecko.
Details
appear in the latest issue of Journal of Applied Physics
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