Explanation:
<em>In it, he developed a computational system for a partially heliocentric planetary model, in which the planets orbit the Sun, which in turn orbits the Earth. In the Tantrasangraha (1500), he revised the mathematics of his planetary system further and incorporated the Earth's rotation on its axis. The heliocentric model was generally rejected by the ancient philosophers for three main reasons: If the Earth is rotating about its axis, and orbiting around the Sun, then the Earth must be in motion. However, we cannot ``feel'' this motion. The celestial sphere was assumed to lie just beyond the orbit of Saturn. Copernicus had two main reasons for asserting that the Sun was the center of our solar system. Copernicus didn't like the fact that the Ptolemaic model had big epicycles to explain the retrograde motions of the planets. He knew that this could be explained instead by having the Earth also moving around the Sun. From his observations, Copernicus concluded that every planet, including Earth, revolved around the Sun. He also determined that the Earth rotates daily on its axis and that the Earth's motion affected what people saw in the heavens. Copernicus did not have the tools to prove his theories.</em>
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The "Necessary and Proper" clause in Article One of the Constitution that gives Congress the means to execute the enumerated powers and serves as the basis for Congress' implied powers. The "Necessary and Proper" clause was also called The "elastic clause" and the "sweeping powers clause" by the Anti-federalists. Hope this helped!
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Another name for the Bubonic plague is Black Death, Black Plague it killed over 1/3rd of Europe's population in 1349 to 1351
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As part of this policy, Nixon signed the Anti-Ballistic Missile Treaty and SALT I, two landmark arms control treaties with the Soviet Union. Nixon promulgated the Nixon Doctrine, which called for indirect assistance by the United States rather than direct U.S. commitments as seen in the ongoing Vietnam War.
