Crop Circles. Basic research and understanding.

New, completely natural, scientifically provable theory about crop circles origin. Using only and only natural sciences - physics, biology, chemistry, meteorology. Interferences, mechanics. Conduction and induction of the electricity. Only the power and electricity of the lightning discharge. After that very slow fading, weakening, and finally flattening, may arise many days after the lightning discharge. Only a few plants die at once. Magnetic anomalies, dead flies also caused by lightning.