Physics

Authors note: In this project I started off working on a bunch of different types of sciences, but Mr. Johnson helped me narrow down my research so I get a lot more in-depth research. My goal for this piece was to be a lot more in-depth.

When most people think of science they think of old people In white lab coats, mixing random chemicals together, but science is much more.  Physics is a very important form of science, without it we wouldn't understand gravity or how a lot of other things work.

The first known model of Planetary motion was given by Kepler in the early 17th century which Proposed that the planets follow elliptical orbits, with the sun at one focus of the ellipse.

Galileo also made use of experiments to validate physical theories, a key element of the scientific method. In 1687, Isaac Newton Published the Principia Mathematica detailing two comprehensive and successful physical theories, Newton's Laws of Motion, Which led to classical Mechanics; and Newton's laws of Gravitation, which describes the fundamental force of gravity.

The beginning of the 20th century brought the start of a revolution in physics. The long-held theories of Newton were shown not to be correct in all circumstances. Beginning in 1900, Max Planck, Albert Einstein, Niels Bohr and others developed quantum theories to explain various anomalous experimental results, by introducing discrete energy levels. Not only did quantum mechanics show that the laws of motion did not hold on small scales, but even more disturbingly, the theory of general relativity, proposed by Einstein in 1915, showed that the fixed background of space time, on which both Newtonian mechanics and special relativity depended, could not exist.

 In 1925, Werner Heisenberg and Erwin Schrödinger formulated quantum mechanics, which explained the preceding quantum theories. The observation by Edwin Hubble in 1929 that the speed at which galaxies recede positively correlates with their distance, led to the understanding that the universe is expanding, and the formulation of the Big Bang theory by Georges Lemaître.

Without Physics, Life would be a lot more simple. We wouldn't know half of the laws of science that we know today. Other than Physics there are many other types of science that can help us understand a lot more. Physics is not alone.