Abstract
ALL anthropologists will be glad to see the subject of perciussiori figures receiving attention in the pages of NATURE (October 9 and November 20, 1919), as the figures form the basis of flint-fracture—the important factor in determining the age and origin of man. Unfortunately, the fracture cone is by no means so simple and constant in outline as one might be led to expect from what has already been advanced, and a number of factors enter into the question, such as the shape and elasticity of the percusser, the velocity of the blow, the striking angle, the perfection of surface of the percussed, its elasticity, and, above all, its varying refrangibility.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
ABBOTT, W. Percussion Figures in Isotropic Solids. Nature 104, 600 (1920). https://doi.org/10.1038/104600b0
Issue Date:
DOI: https://doi.org/10.1038/104600b0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.