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Torn leave experiment

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Torn Leave Experiment

At the University of California Center for Health Sciences, a plant’s leaf showed changes when being approached by a human hand and pricked. Even when part of the leaf was cut off, the glowing portion of the amputated portion still appeared on film….

3rd Circle

From two overlapping circle, you have now two possibilties to continue. Choose one of the nodes to centre the compass and draw the 3rd circle. This forms 3 equally overlapping circles.