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surgery is an important factor today. Millions of people are injured every day and because of surgery, doctors can save their lives. Vesalius work was the foundation of human anatomy that helped lay many discoveries in surgery.

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Vesalius believed that surgery was grounded by anatomy. He produced anatomical charts of the blood and nervous system which later became widely copied. He later wrote a pamphlet on blood letting, which was a cure for a variety of illness. Number of people were interested in his work and therefore he was offered bodies of executed criminals so he can dissect them. He was able to realize that humans do not have the same anatomy as apes. Finally he published a book known as " De Humani Corporis Fabrica" that included all of his observations from human dissection and referred to as the foundation of human anatomy.

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Vesalius was born on 31 of December 1514 in Brussels Belgium. He came from a family of physicians and therefore went to paris to get his medical degree. Unfortunately he couldn't finish his degree because the holy Roman empire declared war on France. He then chose to work in surgery and anatomy, at the time it was considered as little importance. With his beliefs and hard work, he made significant discoveries that proved otherwise.

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After many years of learning, Copernicus became a Polish Astronomer. He lived in an era where everyone thought that the Earth was the center of everything and that the sun and planets orbit around it. After many years of studying and researching, he discovered that the Earth was not the center of the sun, instead the center of the world laid near the sun ( Heliocentric). He later published his book known as ' On the Revolutions' in which he talks about how the earth has thre motions: a daily axial rotation, an annual rotation about the Sun, and a third motion related to precession.

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Nicolaus theory lead to scientist discovering that everything is centered around the sun. If no one had discovered this, we  never would have understood the solar system. This discovery was basically the foundation understanding  of the solar system, and by this we were introduced to the solar system properly and many scientists, including Newton, were able to discover new things

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Anthony was born on the 24th of October in 1632 in the city of Delft. He had a rocky childhood since his father died when he was only 5 years old. His uncle took care of his education, focusing in numeracy and science. Anthony lived his life and married twice. He was a well respected man since he ran his own shop and was a qualified as a land surveyor. He spend most of his life working as a buissnes man, but at the age of 40 he changed career paths and became a scientist. He later became known as " father of microbiology."

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During his free time, Anthony spent most of his free time grinding lenses, which helped contribute to his later improvement of the microscope. With his great skill, he was able to enhance the compound microscope since the lense had a magnification of 200x. He was a very curious man, so he would always put everything under the microscope and that's how he became the first scientist to observe and describe single celled organism. Adding on, he was also the first to observe fibers and bacteria.

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Copernicus is an amazing scientist, but why is he amazing?

Copernicus was born on february 19, 1473 in Poland. He suffered a traumatic event when his father died when Copernicus was only 10. His uncle took care of him and cared deeply for his education. He attended the Cracow academy where he fell in love with astronomy. He later went to the university of Bologna and and padua where he studied law and medicine. This was the start of the great discoveries that Copernicus was about to discover.

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The discovery of the cells gave a huge headstart to all scientists. Adding on, by updating the microscope many scientists were able to discover animal and plants cells and what's inside them. Discovering Bacteria allowed us to understand how we get sick and therefore people were one step closer to discover a cure.