It was the main exhibit of the Paris Exposition 1889
Models can be conceptual, graphical or mathematical as they are used in science. It allows one to break down a concept into simpler terms with a visual component. A limitation of models in science is that they are usually simplified versions of the real situation or concept.
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Manifest Destiny was the belief that settlers had the right to settle in the West. Therefore, they believed nothing had the power to prevent their settlement
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