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| − | '''Physics''' is the study of nature, and is the science of studying the laws of the universe. [[Galileo]] was the first to discover and propose some of the fundamental laws of physics that we still realize today. He began by studying how a ball rolled down an incline and showed that its speed would be proportional to the height it started at. A scientist that studies ''physics'' is called a [[physicist]]. | + | '''Physics''' is the study of nature, and is the science that deals with the laws of the universe. [[Galileo]] was the first to discover and propose some of the fundamental laws of physics that we still use today. He began by studying how a ball rolled down an incline and showed that its speed would be proportional to the height it started at. A scientist who studies ''physics'' is called a [[physicist]]. |
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| − | [[Newton]] devised many theories still commonly used in the branch of mechanics. The most famous of which, the law of gravity, was published inside his notoriously difficult to read Principia, and has been partly responsible for making him one of the most admired and famous scientists of all time. | + | [[Newton]] devised many theories still commonly used in the branch of mechanics. The most famous of which, the law of gravity, was published in his notoriously difficult book entitled Principia, partly responsible for making him one of the most admired and famous scientists of all time. |
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| | Law of gravity: | | Law of gravity: |
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| | <math>F = GMm/r<sup>2</sup></math> | | <math>F = GMm/r<sup>2</sup></math> |
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| − | This law shows how the force between any two objects (you and your laptop for instance) vary with the distance squared between the two objects. | + | This law shows how the force between any two objects (you and your laptop for instance) varies with the distance squared between the two objects. |
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| | Newton also developed the mathematical domain of Calculus: the study of rates of change. Calculus is essential to our understanding of technology around us from how electricity works to how your cell phone communicates and to the dynamics of speeding bullets and cars. Newton took around 33 years to publish this after developing it which caused a bitter feud with another mathematician of the time who also had claimed to develop it. | | Newton also developed the mathematical domain of Calculus: the study of rates of change. Calculus is essential to our understanding of technology around us from how electricity works to how your cell phone communicates and to the dynamics of speeding bullets and cars. Newton took around 33 years to publish this after developing it which caused a bitter feud with another mathematician of the time who also had claimed to develop it. |
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| | Applied physicists and engineers using the laws of physics have helped develop countless technological advancements that make our world as comfortable to live in as it is today. | | Applied physicists and engineers using the laws of physics have helped develop countless technological advancements that make our world as comfortable to live in as it is today. |
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| − | Many physicists and mathematicians of recent times are [[atheist]], however this should not put you off the subject. Physics and astrophysics are the key to understanding the universe and how everything inside it operates whether there is God or not. | + | Many physicists and mathematicians of recent times are [[atheist]], however this should not put you off the subject. Physics and astrophysics are the key to understanding the universe and how everything inside it operates whether God exists or not. |
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