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Author Topic: shotgun used in searching underground  (Read 3241 times)

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Offline tatang

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shotgun used in searching underground
« on: February 08, 2016, 05:51:31 AM »
Peace to everyone. I saw on tv, scientists using shotgun blasted into the ground and then the computer analyze the soundwaves in order to find fossils. Is there anyone here familiar with this old school technique?
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