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To: Alan Whirlwind who wrote (14671)	7/8/2002 5:22:00 PM
From: sea_urchin	Read Replies (2) \| Respond to of 82328

Al >the circles may be created by magnetic forces of the earth or chemical catalysts in the soil Sure, in fact, various sites on the internet offer the most amazing explanations usually involving physical principles which I haven't heard about before. On the assumption that they are made by people using understandable technology there has to be a computerized mechanism which drives a blade or a roller of some sort. The cutting or rolling device would have to be positioned by means of strings or cables set out in a web over the field to be cut. I think quite a lot about these crop circles because the patterns are becoming more frequent, bigger and more complex and appear to defy all rational explanation.