- Nov 2009

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November 23rd, 2009

More on Heat Treatment and Stone Tool Making

November 23, 2009

Two months ago scientists announced that heat treatment -  controlled baking of stone in order to improve it as a raw material for shaping into tools - had far earlier origins than had been thought previously.  See the article "Heat Treatment Makes Better Stone Tools", below.  We now have video discussing heat treatment, or fire hardening.

November 7th, 2009

Signs of Early Homo sapiens in China?

November 07, 2009

The announcement from China of the discovery of tantalisingly few fossils raise the possibility Homo sapiens arrived in eastern Asia far earlier than first supposed.  These finds also revive the controversy surrounding two contending hypotheses of human evolution, the multi regional versus  African origin.