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The principle behind the self-supporting bridge design by Leonardo da Vinci was based on the idea of a parabolic arch or a catenary curve (the shape that a hanging chain or cable forms under its own weight). The bridge was designed to be curved in such a way that the weight of the structure is evenly distributed between the two ends, making it self-supporting without the need for external supports. The bridge would be held in place by gravity and friction, with its weight compressing the structure and providing the necessary stability for it to remain standing.

Da Vinci's bridge design was also characterized by its use of interlocking wooden planks, which further strengthened the structure and made it more durable. The planks were designed to be wedge-shaped, with each plank fitting tightly against its neighbor to form a continuous curve. This meant that the individual elements of the bridge each contributed to its overall strength and stability.

Despite the fact that some of da Vinci's bridge designs were never realized during his lifetime, his ideas had a significant impact on bridge building and engineering in the centuries that followed. Today, we can still see the influence of his innovative designs in the bridges that we use all around the world. #usa #science #physicspip

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