Beliefs/Ideas Held By Albert Einstein
THE SPECIAL THEORY OF RELATIVITY
This theory is called the special relativity theory because it refers to a special kind of motion. This is uniform motion in a straight line, that is, with constant velocity.
The theory of relativity is based on the famous equation e=mc². E = Energy M = Mass and C = clarities which is a Latin word for quickness. Einstein used the "c" because Latin at that time was still the main language of science. This means: Energy = Mass times the velocity of light squared. Scientists, at first, didn't believe in his equation. But when, many years later, they studied nuclear energy problem, they found out that Einstein's equation was indeed right. With one gram of mass you could supply a big family with power for 100.000 years.
THE GENERAL THEORY OF RELATIVITY
Einstein’s mathematical formulas which make up this general theory are much more difficult than those which are concerned with special relativity. The general relativity theory changes the old ideas about gravitation that have dominated physics since the days of Isaac Newton. According to Newton, two bodies attract each other with a force depending upon their mass and their distance apart. The gravitational influence of a star is felt at the same moment throughout the entire universe, even though it decreases with the distance from the star. But for electromagnetic waves, action spreads through space with great but perfectly definite velocity, that of light. Because of our knowledge of electromagnetic radiation, we tend to reject ideas that disturbances and actions that travel through space have infinite speed. We tend to believe that though they may travel at a very high speed, that speed is not limitless.
FISSION/CHAIN REACTION THEORY
Einstein believed that the neutron is the most effective particle to cause uranium fission. Only one neutron is needed to split an atom. When the atom fissions (splits), it splits into two smaller atoms which are most always radioactive and releases an enormous amount of energy and two or three neutrons. The neutrons released could then possibly hit other nuclei of uranium, which causes them to split in the same fashion. This is a chain reaction (a series of fissions). A baseball made of plutonium produced an explosion equal to 20,000 tons of TNT.
- PRODUCING AN EXPLOSION THEORY
When Einstein tried to assemble a bomb, he realized that he couldn’t just create a supercritical mass of fissile material because it would explode.
He got around this problem by creating two sub critical amounts of fissile material then assembling them in the bomb apart from each other.
They do not become critical until an explosion is set off to fire one of the sub critical masses at the other one. The force of the impact welds the two pieces together. Together, these create a critical mass.
He calculated that it would take about 1 millionth of a second for the nuclear explosion to occur.
Beliefs/Ideas Have Influenced
With his scientific fame Einstein could act as unofficial spokesman for the Weimar Republic, and he protested the continued hostility of Germany's former enemies. In 1921 he refused to attend the third Solvay Congress in Belgium, since all other German scientists were excluded from it. In 1922 he joined a newly created Committee on Intellectual Cooperation set up under the League of Nations. The next year he resigned, distressed by the League's impotence when confronted with France's occupation of the German Ruhr. But he soon returned to the committee. As a leading member of the German League for Human Rights, he worked hard for better relations with France. He also made numerous gestures against militarism.
Einstein attracted attention to a number of causes, such as the release of political prisoners and the defense of democracy against the spread of fascism. He spoke in public, made statements to the press, signed petitions. In 1924 he defended the radical Bauhaus School of Architecture; in 1927 he signed a protest against Italian fascism; in 1929 he appealed for the commutation of death sentences given to Arab rioters in British Palestine.
Impact Of Albert Einstein On Society
The difficulty that others had with Einstein's work was not because it was mathematically complex or technically obscure; the problem resulted, rather, from Einstein's 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 Einstein's 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. Then he moved rapidly upwards 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 1913, he was appointed director of the Kaiser Wilhelm Institute for Physics in Berlin.
After 1919 Einstein’s impact became internationally renowned. He accrued honors and awards, including the Nobel Prize for 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.
Albert Einstein
Bibliography
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“Albert Einstein", Colliers Encyclopedia, (MacMillan, 1985) Volume 8, pg. 684-685
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"Albert Einstein", World Book, (World Book Inc., 1999) Volume 6, pg. 146-147
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"Albert Einstein", Encyclopedia Britannica, (Encyclopedia Britannica Inc., 1997) Volume 4, pg. 403
- http://www.geocities.com/einstein_library/index.htm