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Anthony Peratt's theme of Petroglyphs and Auroral phenomena

Here's an interesting hypothesis regarding high-energy auroral phenomena as an explanation of petroglyphs (rock drawings)around the world. The attached scanned file is large - 60 Mbyte!

A couple of comments:

It there any truth to his theory? Who knows... but it's certainly fun!!

Directory of available files for this webpage: including earlier versions of papers.

Last updated:
original 19May09