Abstract
I would like to draw your attention to the fact that the fibres of which paper is made retain their individuality in the sheet, even in dense papers.
In many experiments, conditions are such that the discontinuous structure of paper has little chance to show. This is why the modulus of elasticity, for example, comes out the same whether it is determined by bending, by a sonic method, or by stretching in a tensile tester of standardized inertia. Such experiments assure us that the laws of continuum physics are consistent and that it is still worth reading and studying them.
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