The Aim and Structure of Physical Theory

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Princeton University Press, Jul 29, 1991 - Science - 344 pages
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This classic work in the philosophy of physical science is an incisive and readable account of the scientific method. Pierre Duhem was one of the great figures in French science, a devoted teacher, and a distinguished scholar of the history and philosophy of science. This book represents his most mature thought on a wide range of topics.

 

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Contents

VI
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VIII
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Common terms and phrases

Popular passages

Page 10 - ... all sensation is excited, and the members of animal bodies move at the command of the will, namely, by the vibrations of this spirit, mutually propagated along the solid filaments of the nerves, from the outward organs of sense to the brain, and from the brain into the muscles.
Page xix - A physical theory is not an explanation. It is a system of mathematical propositions, deduced from a small number of principles, which aim to represent as simply, as completely, and as exactly as possible a set of experimental laws.
Page 10 - But these are things that cannot be explained in few words, nor are we furnished with that sufficiency of experiments which is required to an accurate determination and demonstration of the laws by which this electric and elastic Spirit operates.
Page 10 - To tell us, that every species of things is endowed with an occult specific quality, by which it acts and produces manifest effects, is to tell us nothing: but to derive two or three general principles of motion from phenomena, and afterwards to tell us how the properties and actions of all corporeal things follow from those manifest principles, would be a very great step in philosophy, though the causes of those principles were not yet discovered: and therefore I scruple not to propose the principles...
Page 32 - Here is a book (O. Lodge, op.cit. ) intended to expound the modern theories of electricity and to expound a new theory. In it there are nothing but strings which move around pulleys, which roll around drums, which go through pearl beads, which carry weights; and tubes which pump water while others swell and contract; toothed wheels which are geared to one another and engage 12 O. Lodge, Les Théories modernes . . . , p. 16. hooks. We thought we were entering the tranquil and neatly ordered abode...
Page 15 - HYPOTHETICAL method, a class of objects or phenomena is defined, according to a conjectural conception of their nature, as being constituted, in a manner not apparent to the senses, by a modification of some other class of objects or phenomena whose laws are already known.
Page 33 - I never satisfy myself until I can make a mechanical model of a thing. If I can make a mechanical model I can understand it.
Page 149 - In sum, the physicist can never subject an isolated hypothesis to experimental test, but only a whole group of hypotheses...
Page 153 - Any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Page 10 - But to derive two or three general Principles of Motion from Phenomena, and afterwards to tell us how the Properties and Actions of all corporeal Things follow from those manifest Principles, would be a very great step in Philosophy, though the Causes of those Principles were not yet discover'd: And therefore I scruple not to propose the Principles of Motion above-mention'd, they being of very general Extent, and leave their Causes to be found out.

About the author (1991)

Pierre Duhem (1861-1916) is best known in science for his work in thermodynamics and in history of science for his treatment of the Middle Ages. He was Professor of Physics at the University of Bordeaux

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