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If Newton didn't do his thing then we wouldn't have many stuff related to space and planes like: planes, rockets, satellites, GPS, television exc. wouldn't have been existent without Newton.

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Issac Newtons main discovery was the law of gravity and the three laws of motion in physics. Newton found out about the law of gravity from an apple that fell on him while he was sitting under a tree. He kept asking questions like why didn't the apple fly? Why didn't the apple go to the right or left? exc. From all these observations he found out the law of gravity.

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Newton's main area of study was math.

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Newton was born in Woolsthorpe, England, on January 4, 1653. His father died before he was born, and his mother left him when he was 3 years old. His mum toke him away from school and wanted him to work as a farmer, but it didn't work. Newton entered the University of Cambridge's Trinity, by the persuasion from his uncle to his mum. Newton liked advanced science more than the standard curriculum he toke. In his spare time he would read books about modern philosophy, from these books he discovered the new concept of nature, that was the framework of the SR.

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If Vesalius didn't do his thing then we wouldn't have known about the systems in our body, how to heal diseases that infected these systems. We also wouldn't know how our body works, many people would have been dead by now because there is no cure to these diseases.

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Vesalius' main discovery or author of the book on human anatomy "De humani corporis fabrica" . He is usually known as the founder of human anatomy. He carried out dissection to examine the inner structure of the human body in detail. He was also the first to test Galens theories.

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Vesalius' main area of study was anatomy.

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Vesalius was born in Brussels on December 31, 1514. He was raised by his mother in a very rich house. He learned arithmetic, Latin, and the ground rules of the catholic religion. He went to the Louvian University when he was 15 years old, he was accepted to the University of Paris (a medical school). He was taught mostly on the work of Galen of Pergamon, (an Ancient Greek physician). Guinter von Andernach taught Vesalius anatomy, he allowed his students to make their own dissections.

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Halley proved Newton right by applying his theory to his study of comets. By doing that he confirmed Newtons theory of gravity and a change of understanding to comets. So we can connect them to each other, we wouldn't have: planes, rockets, satellites, GPS, television exc.

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Edmund Halley's main achievement was that he was able to identify Comet Halley from orbital measurements, the orbit was named after him. He also discovered a star cluster in the constellation Centaurus. He observed comets and found/ discovered Halley's Comet in 1531 and 1607.

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Edmunds main area of study was astronomy.

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Edmund Halley was an English scientist, he made significant discoveries in geophysics, mathematics, meteorology and physics. He is best known for predicting the orbit of the comet that was later named by his name. He was born in November 8, 1656, in London, England. He was taught privately at his house then he entered St. Paul's School. Edmund Halley was usually exceeding in mathematics and astronomy. After he finished school he entered Queens College, Oxford in 1673 at that time he was 17 years old. He became a protege of John Flamsteed.