|MadSci Network: Physics|
The Cooperton site has mammoth bones that are suspected of human modification using hammerstones weighing 1 lb or less. It has been said that it would take 20,000 psi to fracture these bones when they are green. They are suspected to have been broken green due to the spiral fractures. I am unsure a man could exert such a force especially considering these men substantially smaller than human beings today.
Re: Can a man hammer with a 1 lb stone to exert a force of 20,000 psi?
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