We tested the most popular rotary tools—from Dremel to Ryobi—to find out which models deliver the best power, precision, and ...
Tools recovered from three sedimentary layers in Kenya show continuous tool use spanning from 2.75 to 2.44 million years ago in the face of environmental changes.
A Kenyan site reveals early humans made and used the same Oldowan stone tools for 300,000 years, showing remarkable stability ...
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