Saturday, 18. January 2003

Scientists explain Arctic stone circles


Researchers may have an explanation for the natural near-perfect circles of stones that cover the ground in parts of Alaska and the Norwegian islands of Spitsbergen. According to scientists, the circles are not the result of ancient art but due to cyclic freezing and thawing of the ground that drives a simple feedback mechanism that generates the patterns.

¬> <a href="news.bbc.co.uk"target="_blank">BBC

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