The Principles of Science: A Treatise on Logic and Scientific MethodMacmillan, 1887 - 786 páginas |
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Página vii
... physical sciences during the last three centuries has not been accompanied by a corresponding advance in the theory of reasoning . Physicists speak familiarly of Scientific Method , but they could not readily describe what they mean by ...
... physical sciences during the last three centuries has not been accompanied by a corresponding advance in the theory of reasoning . Physicists speak familiarly of Scientific Method , but they could not readily describe what they mean by ...
Página xxvii
... physical science depend upon its use , and yet the mathematicians who have created so great a body of exact truths have never decided upon the basis of the calculus . What is the nature of a limit or the nature of an infinitesimal ...
... physical science depend upon its use , and yet the mathematicians who have created so great a body of exact truths have never decided upon the basis of the calculus . What is the nature of a limit or the nature of an infinitesimal ...
Página xxix
... physical writers , knowing what they were writing about , simply drew such conclusions from the facts which were before them as could be reasonably drawn . They say , here is a state of things which could not have been produced by the ...
... physical writers , knowing what they were writing about , simply drew such conclusions from the facts which were before them as could be reasonably drawn . They say , here is a state of things which could not have been produced by the ...
Página xxx
... physical writers . Professor Tait , in his Sketch of Ther- modynamics , speaking of the laws discovered by Fourier for the motion of heat in a solid , says , " Their mathematical expressions point also to the fact that a uniform ...
... physical writers . Professor Tait , in his Sketch of Ther- modynamics , speaking of the laws discovered by Fourier for the motion of heat in a solid , says , " Their mathematical expressions point also to the fact that a uniform ...
Página xxxi
... Physical Science , Professor Tait has recurred to the subject as follows : " A profound lesson may be learned from one of the earliest little papers of Sir W. Thomson , published while he was an undergraduate at Cambridge , where he ...
... Physical Science , Professor Tait has recurred to the subject as follows : " A profound lesson may be learned from one of the earliest little papers of Sir W. Thomson , published while he was an undergraduate at Cambridge , where he ...
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Términos y frases comunes
abC abc ABcd AbCd analogy apparent arithmetic assert body calculation cause character classification colour Contrapositive crystals deductive deductive reasoning density detect discovered discovery disjunctive proposition earth effect electricity equal equation equivalent error exactly exist experiment expression fact fcap force give gravity heat hypothesis identity induction inference infinite instance inverse inverse logical investigation J. S. Mill James Bernoulli knowledge Laws of Identity laws of nature Laws of Thought letters light Logical Alphabet logical conditions magnetic mammæ manner mathematical matter mean measure metal method mode motion negative Newton number of combinations objects observation obtain pendulum phenomena Philosophical planets possible premises principle probability problem Professor properties proposition qualities quantity reasoning refraction regards relation scientific simple specific gravity stars substances substitution supposed syllogism symbols temperature theory things tion triangle true truth velocity
Pasajes populares
Página 454 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
Página 589 - The philosopher should be a man willing to listen to every suggestion, but determined to judge for himself. He should not be biased by appearances; have no favorite hypothesis ; be of no school ; and in doctrine have no master. He should not be a respecter of persons, but of things. Truth should be his primary object. If to these qualities be added industry, he may indeed hope to walk within the veil of the temple of nature.
Página 480 - Whatever phenomenon varies in any manner, whenever another phenomenon varies in some particular manner, is either a cause or an effect of that phenomenon, or is connected with it through some fact of causation.
Página 304 - Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external...
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