ahlam1399
06-05-2019, 09:24 AM
Oldest flaked stone tools point to the repeated invention of stone tools (https://news.google.com/__i/rss/rd/articles/CBMiPGh0dHBzOi8vcGh5cy5vcmcvbmV3cy8yMDE5LTA2LW9sZG VzdC1mbGFrZWQtc3RvbmUtdG9vbHMuaHRtbNIBO2h0dHBzOi8v cGh5cy5vcmcvbmV3cy8yMDE5LTA2LW9sZGVzdC1mbGFrZWQtc3 RvbmUtdG9vbHMuYW1w?oc=5) Phys.orgA large green artifact found in situ at the Bokol Dora site. Right: Image of the same artifact and a three dimensional model of the same artifact. Credit: David R. Braun A new archaeological site discovered by an international and local team of scientists working in Ethiopia shows that the origins of stone tool production are older than 2.58 million years ago. Previously, the oldest evidence for systematic stone tool production and use was 2.58 to 2.55 million years ago. Analysis by the researchers of early stone age sites, published this week in the Proceedings of the National Academy of S...
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View full coverage on Google News (https://news.google.com/stories/CAAqOQgKIjNDQklTSURvSmMzUnZjbmt0TXpZd1NoTUtFUWpQaj dIOGpZQU1FVHhzRjd4c0xPLUhLQUFQAQ?oc=5)
أكثر... (https://news.google.com/__i/rss/rd/articles/CBMiPGh0dHBzOi8vcGh5cy5vcmcvbmV3cy8yMDE5LTA2LW9sZG VzdC1mbGFrZWQtc3RvbmUtdG9vbHMuaHRtbNIBO2h0dHBzOi8v cGh5cy5vcmcvbmV3cy8yMDE5LTA2LW9sZGVzdC1mbGFrZWQtc3 RvbmUtdG9vbHMuYW1w?oc=5)