Wednesday, April 22, 2020

Relativity Theory Essays - Albert Einstein, Theory Of Relativity

Relativity Theory The theory of relativity was introduced by Albert Einstein around the early nineteen hundereds. It is a theory which enables the human mind to understand the possible actions of the universe. The theory is divided into two parts, the special, and the general. In each part, there is a certain limit to which it explains and helps to comprehend. In the special, Einstein explains ways of understanding the atom and other small objects, while the general is designed for the study of large objects, such as planets. The theory of relativity having being created, succeeded the two hundred year old mechanics of Isaac Newton, thus showing Einstein as more of a futuristic thinker and adapter. Einstein introduced the concept of Relativity, which means that there is no absolute motion in the universe. Einstein showed that humans are not in a flat, absolute time of everyday experience, but in a curved space-time. Take for example the Earth as a whole. The earth has a circumference of around twenty five thousand miles, and it can be covered within a twenty-four hour time frame. Having this completion of distance covered within the set amount of time, shows that the Earth rotates a little over one-thousand miles per hour. it can be assumed that something in the solar system is not moving, and we can measure how fast the earth is moving by relative to the object. However, no matter what object is chosen, it is moving as well, thus showing that nothing is fixed and that everything is moving, and it is unknown how fast or in what direction. The Theory of Relativity is a theory compressing mechanics, gravitation, and space-time. Having known this, it is seen so that all things are related, but can not be thought of as individual. The Theory of Relativity is known for having two parts to it. The first part is the special relativity; the other is the general relativity. Special relativity is known for it's publication in 1906; it is used for microscopic physics, such as atoms and small objects. The other type of relativity, the general, is known for its publication in 1916, well after the birth of it's counterpart. The general half of the theory is intended for astrophysics and cosmology, such as solar systems, planets, and large objects. A British Astronomer named Sir Arthur Eddington, was one of the first to fully understand the Theory of Relativity. A little humor about his intelligence can be seen to when he was asked about there being three people who understood the Theory of Relativity, his response was "who is the third?" The discovery of Quasars, the 3 kelvin microwave background radiation, pulsars, and possibly blackholes were studied with to see the accuracy of the Theory of Relativity with gravity. This led the development of the space program, telescopes, computers, etc...to make better calculations of the accuracy of the theory. The Theory of Relativity has two main parts, the special and the general. The internal part of the special theory is in reference to any region, such as a free falling laboratory, in which objects move in straight lines and have uniform velocities. In the lab, nothing would appear to be moving if everything in the lab was falling, the movement of the lab is relevant to the person that is in the lab. The principle of relativity theorizes that experiments in an internal frame, is independent from uniform velocity of the frame. An example of this is the speed of light. The speed of light within the internal frame is the same for all, regardless of the speed of the observer. Two events that are simultaneos in one frame, may not be simultaneos when viewed from a frame moving relative to the first one. Movement looks different depending on where the observer is located, how fast it is moving, and in what direction. An interesting fact about the special relativity, is that the mechanical foundations of special relativity were researched in 1908 by a german mathmetician named, Hermann Minkowski. Minkowski ler einstein to postulate the vanishing of gravity in free fall. In any free fall, laws of physics should take on special relitavistic forms, this is what led to the EEP(Eisteins Equivalence Principle.) A consequence of EEP is that the space time must be curved. It is techinical, consider two frames falling freely, but on opposite sides of the Earth. According to Minkowski, spare time is valid locally in each frame, but since the frames are accelerating towards each other, the two

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