An Introduction to Classical Mechanics and the Science of Motion

Mechanics is a branch of science concerned with the predictable relationships between physical properties of objects, namely the relationships between matter, force, and motion. Forces applied to an object cause measurable changes, or displacements, of that object relative to its surroundings. Thus, we could say that mechanics describes how the world works. It deals with how objects move.

Classical mechanics postulates that natural laws govern all physical processes. One of these laws is that every action ultimately results in a reaction, that is, it causes another body to be created. For instance, you strike a baseball with a bat and the ball goes into the air and returns to earth as a homing pigeon. Classical mechanics then postulates that the mechanics of such an interaction is governed by quantum mechanics, which contains many well-known laws on different levels of organization, such as sub-atomic particles, atoms, molecules, cells, and the big bang theory.

Quantum mechanics describes the behavior of very small entities, such as atoms, protons, neutrons, taus which are so tiny they can not be seen by the eye. Einstein called these tiny entities "spooky" because they seemed to have no mass. Einstein's theory of relativity further explained why accelerated objects travel faster than stationary ones. Albert Einstein's theory of relativity further explained that energy (lumps of energy) is in a constant state of motion that gives rise to both motion and acceleration.

Quantum mechanics also offers explanations for why some events occur in succession, while other events happen in succession without beginning or ending. For example, you push your arm out at full speed and stretch your arm forward until your palm touches the shoulder blade of your partner; both events are in succession. However, when you release your hand, your wrist breaks the first contact, allowing the arm to move in a complete circular arc, with no contact with either side of the body. These circular motions are the results of the inherent randomness of quantum mechanics. According to quantum mechanics, such random events that do not have a cause are referred to as "virtual particles."

Albert Einstein was one of the fathers of quantum mechanics. He began his studies of mechanics at Einstein university in Germany in 1900, which is currently known as the Institute for Mathematics. During this time, he worked on special relativity, general relativity, and formulated new theories regarding specific cases. Some of these include special relativity regarding the speed of light, electro-magnetic repulsion and also a special theory of relativity known as the photoelectric effect.

Einstein's special theory of relativity and his general theory of relativity established a unified field science that attempted to describe all natural phenomena. Special relativity unified classical mechanics with general mechanics by asserting that the same laws of nature that govern classical particles also governs the movement of celestial bodies. Because of this, Einstein's work on mechanics received accolades from both the European and American presidents.

Quantum mechanics, on the other hand, unifies classical mechanics with quantum mechanics, which defines the quantized world of subatomic particles. Quantum mechanics governs the way that energy and matter are distributed. Students of physics learn the various laws that govern the different particles and their interaction. This is integral to understanding how to harness the power of the universe through the creation of energy or power.

The second law of classical mechanics states that energy will remain in the same form forever, regardless of the direction it is spinning. Einstein's general theory of relativity further expands the boundaries of space-time, allowing for the existence of electromagnetic radiation. Einstein's theory of relativity further explains that only certain physical laws such as clocks can be observed in the universe. Particles have mass have no mass; they occupy space and move according to the same laws as elementary particles. Thus, they follow the same laws of movement and interaction as light, sound, and gravitation.

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