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Earth

Did Neandertals Paint Early Cave Art? 126

sciencehabit writes "Dating experts working in Spain, using a technique relatively new to archaeology, have pushed dates for the earliest cave art back some 4000 years to at least 41,000 years ago, raising the possibility that the artists were Neandertals rather than modern humans. And a few researchers say that the study argues for the slow development of artistic skill over tens of thousands of years — not a swift acquisition of talent, as some had argued."

Comment Re:You joke about DC (Score 1) 386

The reason is that DC only requires as single cable - which can be supported by quite a thin little pole (the ground itself can be the return line).

That can also be done with AC. Note that the return line (Neutral wire) is same as ground. Instrad of three-phase it can also be done with monophased AC, thus having only one wire to carry through poles.

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