NP stone circles

[pynchonoid]

"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. 

Elsewhere in the far north, stones also form
mysterious striking patterns on the ground. 

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. 

"The patterns form by self-organization, and the same
fundamental processes are at work in the formation of
all these different patterns," says Mark Kessler of
the Earth Sciences Department at the University of
California, Santa Cruz, US. [...] "

continues:
http://news.bbc.co.uk/1/hi/sci/tech/2665675.stm

...enjoy!

-Doug



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