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Example research essay topic: Electromagnetic Radiation Atomic Bomb - 2,157 words

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Language Arts Einstein Robert Norberciak Language Arts 8 Final Draft 2 - 09 - 00 An American legend is a person that is gonna to be remember for what he or she did and not just hype. Einstein was a great American legend that will be remember for many years to come. He deserves to be a American legend because, of his hard times in his early life, some early scientific publications, his special theory of relativity and e = mc 2, the early reactions to Einstein, the hard times after all of his publicity, they all lead up to prove that he can do anything they want to do even through hard times. Einstein, Albert Einstein was born in Ulm on March 14, 1879, and spent his youth in Munich, where his family owned a small shop that manufactured electric machinery. He did not talk until the age of three, but even as a youth he showed a brilliant curiosity about nature and an ability to understand difficult mathematical concepts.

At the age of 12 he taught himself Euclidean geometry. Einstein hated the dull regimentation and unimaginative spirit of school in Munich. When repeated business failure led the family to leave Germany for Milan, Italy, Einstein, who was then 15 years old, used the opportunity to withdraw from the school. He spent a year with his parents in Milan, and when it became clear that he would have to make his own way in the world, he finished secondary school in Area, Switzerland, and entered the Swiss National Polytechnic in Z?

rich. Einstein did not enjoy the methods of instruction there. He often cut classes and used the time to study physics on his own or to play his beloved violin. He passed his examinations and graduated in 1900 by studying the notes of a classmate.

His professors did not think highly of him and would not recommend him for a university position. For two years Einstein worked as a tutor and substitute teacher. In 1902 he secured a position as an examiner in the Swiss patent office in Bern. In 1903 he married Miles Music, who had been his classmate at the polytechnic. They had two sons but eventually divorced. Einstein later remarried.

In 1905 Einstein received his doctorate from the University of Z? rich for a theoretical dissertation on the dimensions of molecules, and he also published three theoretical papers of central importance to the development of 20 th-century physics. In the first of these papers, on Brownian motion, he made significant predictions about the motion of particles that are randomly distributed in a fluid. These predictions were later confirmed by experiment. The second paper, on the photoelectric effect, contained a revolutionary hypothesis concerning the nature of light. Einstein not only proposed that under certain circumstances light can be considered as consisting of particles, but he also hypothesized that the energy carried by any light particle, called a photon, is proportional to the frequency of the radiation.

The formula for this is E = h, where E is the energy of the radiation, h is a universal constant known as Planck's constant, and is the frequency of the radiation. This proposal? that the energy contained within a light beam is transferred in individual units, or quanta? contradicted a hundred-year-old tradition of considering light energy a manifestation of continuous processes. Virtually no one accepted Einsteins proposal. In fact, when the American physicist Robert Andrews Millikan experimentally confirmed the theory almost a decade later, he was surprised and somewhat disquieted by the outcome.

Einstein, whose prime concern was to understand the nature of electromagnetic radiation, subsequently urged the development of a theory that would be a fusion of the wave and particle models for light. Again, very few physicists understood or were sympathetic to these ideas. Einsteins third major paper in 1905, On the Electrodynamics of Moving Bodies, contained what became known as the special theory of relativity. Since the time of the English mathematician and physicist Sir Isaac Newton, natural philosophers (as physicists and chemists were known) had been trying to understand the nature of matter and radiation, and how they interacted in some unified world picture.

The position that mechanical laws are fundamental has become known as the mechanical world view, and the position that electrical laws are fundamental has become known as the electromagnetic world view. Neither approach, however, is capable of providing a consistent explanation for the way radiation (light, for example) and matter interact when viewed from different inertial frames of reference, that is, an interaction viewed simultaneously by an observer at rest and an observer moving at uniform speed. In the spring of 1905, after considering these problems for ten years, Einstein realized that the crux of the problem lay not in a theory of matter but in a theory of measurement. At the heart of his special theory of relativity was the realization that all measurements of time and space depend on judgments as to whether two distant events occur simultaneously. This led him to develop a theory based on two postulates: the principle of relativity, that physical laws are the same in all inertial reference systems, and the principle of the invariance of the speed of light, that the speed of light in a vacuum is a universal constant.

He was thus able to provide a consistent and correct description of physical events in different inertial frames of reference without making special assumptions about the nature of matter or radiation, or how they interact. Virtually no one understood Einsteins argument. In fact, when the Amercian physicist Robert Andrews Millikan experimentally confirmed the theory almost a decade he was surprised and somewhat disquieted by the outcome. Einstein, whose prime concern was to understand the nature of electromagnetic radiation, subsequently urged the development of a theory that would be a fusion of the wave and particle models for light. Again, very few physicists understood or were sympathetic to these ideas. The difficulty that others had with Einsteins work was not because it was too mathematically complex or technically obscure; the problem resulted, rather, from Einsteins beliefs about the nature of good theories and the relationship between experiment and theory.

Although he maintained that the only source of knowledge is experience, he also believed that scientific theories are the free creations of a finely tuned physical intuition and that the premises on which theories are based cannot be connected logically to experiment. A good theory, therefore, is one in which a minimum number of postulates is required to account for the physical evidence. This sparseness of postulates, a feature of all Einsteins work, was what made his work so difficult for colleagues to comprehend, let alone support. Einstein did have important supporters, however. His chief early patron was the German physicist Max Planck.

Einstein remained at the patent office for four years after his star began to rise within the physics community. He then moved rapidly upward in the German-speaking academic world; his first academic appointment was in 1909 at the University of Zurich. In 1911 he moved to the German-speaking university at Prague, and in 1912 he returned to the Swiss National Polytechnic in Zurich. Finally, in 1914, he was appointed director of the Kaiser Wilhelm Institute for Physics in Berlin. Even before he left the patent office in 1907, Einstein began work on extending and generalizing the theory of relativity to all coordinate systems. He began by enunciating the principle of equivalence, a postulate that gravitational fields are equivalent to accelerations of the frame of reference.

For example, people in a moving elevator cannot, in principle, decide whether the force that acts on them is caused by gravitation or by a constant acceleration of the elevator. The full general theory of relativity was not published until 1916. In this theory the interactions of bodies, which heretofore had been ascribed to gravitational forces, are explained as the influence of bodies on the geometry of space-time (four-dimensional space, a mathematical abstraction, having the three dimensions from Euclidean space and time as the fourth dimension). On the basis of the general theory of relativity, Einstein accounted for the previously unexplained variations in the orbital motion of the planets and predicted the bending of starlight in the vicinity of a massive body such as the sun.

The confirmation of this latter phenomenon during an eclipse of the sun in 1919 became a media event, and Einsteins fame spread worldwide. For the rest of his life Einstein devoted considerable time to generalizing his theory even more. His last effort, the unified field theory, which was not entirely successful, was an attempt to understand all physical interactions? including electromagnetic interactions and weak and strong interactions? in terms of the modification of the geometry of space-time between interacting entities. Most of Einsteins colleagues felt that these efforts were misguided.

Between 1915 and 1930 the mainstream of physics was in developing a new conception of the fundamental character of matter, known as quantum theory. This theory contained the feature of wave-particle duality (light exhibits the properties of a particle, as well as of a wave) that Einstein had earlier urged as necessary, as well as the uncertainty principle, which states that precision in measuring processes is limited. Additionally, it contained a novel rejection, at a fundamental level, of the notion of strict causality. Einstein, however, would not accept such notions and remained a critic of these developments until the end of his life.

God, Einstein once said, does not play dice with the world. After 1919, Einstein became internationally renowned. He accrued honors and awards, including the Nobel Prize in physics in 1921, from various world scientific societies. His visit to any part of the world became a national event; photographers and reporters followed him everywhere.

While regretting his loss of privacy, Einstein capitalized on his fame to further his own political and social views. The two social movements that received his full support were pacifism and Zionism. During World War I he was one of a handful of German academics willing to publicly decry Germany's involvement in the war. After the war his continued public support of pacifist and Zionist goals made him the target of vicious attacks by anti-Semitic and right-wing elements in Germany. Even his scientific theories were publicly ridiculed, especially the theory of relativity. When Hitler came to power, Einstein immediately decided to leave Germany for the United States.

He took a position at the Institute for Advanced Study at Princeton, New Jersey. While continuing his efforts on behalf of world Zionism, Einstein renounced his former pacifist stand in the face of the awesome threat to humankind posed by the Nazi regime in Germany. In 1939 Einstein collaborated with several other physicists in writing a letter to President Franklin D. Roosevelt, pointing out the possibility of making an atomic bomb and the likelihood that the German government was embarking on such a course. The letter, which bore only Einsteins signature, helped lend urgency to efforts in the U. S.

to build the atomic bomb, but Einstein himself played no role in the work and knew nothing about it at the time. After the war, Einstein was active in the cause of international disarmament and world government. He continued his active support of Zionism but declined the offer made by leaders of the state of Israel to become president of that country. In the U.

S. during the late 1940 s and early 50 s he spoke out on the need for the nations intellectuals to make any sacrifice necessary to preserve political freedom. Einstein died in Princeton on April 18, 1955. Einsteins efforts in behalf of social causes have sometimes been viewed as unrealistic.

In fact, his proposals were always carefully thought out. Like his scientific theories, they were motivated by sound intuition based on a shrewd and careful assessment of evidence and observation. Although Einstein gave much of himself to political and social causes, science always came first, because, he often said, only the discovery of the nature of the universe would have lasting meaning. His writings include: Relativity: The Special and General Theory (1916); About Zionism (1931); Builders of the Universe (1932); Why War? (1933), with Sigmund Freud; The World as I See It (1934); The Evolution of Physics (1938), with the Polish physicist Leopold Indeed; and Out of My Later Years (1950).

Einsteins collected papers are being published in a multi volume work, beginning in 1987. Einstein was one of the smartest men ever, if not the smartest. Even with all the troubles and pain he had to go through he managed to do what he tried to do. He is one of the most well-known American Legend. He was the real-thing and not just a hype like most people that aren? t legends but are close to being one.

He will be a American legend for centuries to come.


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Research essay sample on Electromagnetic Radiation Atomic Bomb

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