Everything the Power of the World does is done in a circle. The sky is round, and I have heard that the earth is round like a ball, and so are all the stars. The wind, in its greatest power, whirls. Birds make their nests in circles, for theirs is the same religion as ours. The sun comes forth and goes down again in a circle. The moon does the same, and both are round. Even the seasons form a great circle in their changing, and always come back again to where they were. The life of a man is a circle from childhood to childhood, and so it is in everything where power moves. – Chief Black Elk, Black Elk Speaks

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I created this video to feature the beauty and strength of circles in our natural and created world. Circles are the strongest structural shape, and in nature, the sphere is the strongest three dimensional shape. This is because the energy and pressure is distributed equally along the arc instead of concentrating at any one point. Buckminster Fuller created the geodesic dome and the domes are durable and sturdy because of a structural principle called tensegrity. Tensegrity comes from the words tension and integrity and refers to the relationship between tension and compression.

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