How can we tell whether a rock is man-made or natural?

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Offline thedoc

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New technique uses infa-red to tell whether rock fragments are man-made or naturally occuring. This useful new technique has been tested successfully by Israli archaeologists.
Read a transcript of the interview by clicking here

or [chapter podcast=3001 track=11.01.17/Naked_Archaeology_11.01.17_8273.mp3] Listen to it now[/chapter] or [download as MP3]
« Last Edit: 22/07/2011 12:54:07 by _system »