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Comparing Scientific Theories Essay

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Carl G. Hempel was of the most influential proponents of what is now regarded as the classic view of explanation in science. In his work, Philosophy of Natural Science, he created the deductive-nomological model which is the following account of scientific explanation, where an explanation is set out as a formalized argument. This is the principle format for works such as Aristotle’s Physica, Ptolemy’s Almagest, Newton’s Principia and Opticks, Franklin’s Electricity, Lavoisie’s Chemistry, and Lyell’s Geology. Thomas Kuhn calls these achievements Paradigms. Through these paradigms normal science developed. In Kuhn’s book, The Structure of Scientific Revolutions, he argues that normal science in a way hinders the development of new phenomenon. He says that there must be a change in a paradigm to create a scientific revolution. Throughout this essay I will explain what Hempel’s model consists of and how it relates to Kuhn’s view.
Hepel explains the process of explaining atmospheric pressure by starting from the beginning with Galileo’s interest in the limitations of a simple suction pump. Galileo’s observation was that a simple suction pump, which draws water form a well by means of a piston that can be raised in the pump barrel, will lift water no higher than about 34 feet above the surface of the well. After Galileo’s death, his pupil Torricelli pursued this dilemma. Torricelli argued that the earth is surrounded by a sea of air that exerts pressure on the surface below, and that this pressure upon the surface of the well forces water up the pump barrel when the piston is raised. The maximum length of 34 feet for the water column in the barrel thus reflects simply the total pressure of the atmosphere upon the surface o...


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...black four of hearts. When these cards were first exposed briefly they were almost always identified as normal. So the cards were immediately fitted into one of the conceptual categories based on prior experience. However, when the subjects were exposed to the anomalous cards more often however, they began to hesitate. After having become aware of the anomaly it was not uncommon for the subjects to get irritated and distressed. Further increase of exposure resulted in sill more hesitation and confusion until finally most subjects produced the correct identification without hesitation.
There is really no possible way I could contradict Kuhn’s view. I think his ideas are true and could dramatically increase the possibilities of scientists’ ability to create new advances in science. I believe that all scientists should view their work in kuhn’s perspective.



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