What is flint good for? Stone tools

By |2018-09-06T06:55:52-07:00September 5th, 2017|Africa, Prehistory, Science|

What is flint? Flint is a sedimentary rock made out of an igneous rock. What is flint made of? It's pretty complicated. Billions of years ago, silicon and oxygen atoms shot out of a star when it went supernova. What is a supernova? About four billion years ago, some of those atoms came [...]