Forces Generated by the Jaws of Clypeasteroids

Abstract

Aristotle's lantern acts like a five-toothed 'vice grip.' Contraction of the interpyramidal muscles creates tangential stresses that are converted to radial forces along the teeth. Two mechanical models are proposed to explain this conversion. In the first, the lantern is regarded as a thick-walled cylinder resisting internal pressure; in the second, it is… (More)

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