ANSI B11.0-2020: Safety of Machinery
In the hands of Homo erectus—or its contemporary primitive cousin, H. habilis (whose name literally means “handy man”)—the hand axe, dating back 1.8 million years, […]
ANSI B11.0-2020
In the hands of Homo erectus—or its contemporary primitive cousin, H. habilis (whose name literally means “handy man”)—the hand axe, dating back 1.8 million years, […]