Henri Poincaré, The evolution of laws (2)

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But, it will be said, could it not be that the application of the preceding process would lead to a contradiction, or, if one wishes, that our differential equations admit no solution? Since the hypothesis of the immutability of laws, … Read More

Henri Poincaré: The evolution of laws (1)

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Mr. Boutroux, in his work on the contingency of the laws of nature, wondered if natural laws are not likely to change, if while the world is changing continuously, the laws themselves, that is to say to say the rules … Read More

Newton-Hooke controversy in the opinion of scientists

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A presentation of Hooke’s 1674 monograph introducing the idea of universal gravity was included in the Philosophical Transactions (Royal Society 1775) and subsequently several letters containing observations, including one of Huygens. But obviously, after the publication of Principia in 1687, … Read More

Support and trend of falsifiability

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Popper’s supporters argued that most criticism is based on an incomprehensible interpretation of his ideas. They argue that Popper should not be interpreted as meaning that falsifiability is a sufficient condition for the demarcation of science. Some passages seem to … Read More

Imre Lakatos, The methodology of scientific research programmes – An Overview

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Imre Lakatos (1922-1974) was one of the modern philosophers of science and mathematics. His main contribution to philosophy was the development of the concept of methodology of scientific research programmes and the use of this methodology in the rational reconstruction … Read More

Criticism of Falsifiability

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Thomas Kuhn criticized falsifiability because it characterized “the entire scientific enterprise in terms that apply only to its occasional revolutionary parts,” (Kuhn 1970) and it cannot be generalized. In Kuhn’s view, a delimitation criterion must refer to the functioning of … Read More

Falsification and refutation

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Dogmatic falsifiability refers to scientific statements considered individually. These can be falsified and, depending on the outcome, scientific theories can be considered falsifiable and accepted, refuted, or can be maintained by adding ad-hoc hypotheses: ” There is one important method … Read More

Lakatos on justificationism

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The methodology of scientific research programmes is an improvement of Popper’s demarcation criterion between science and non-science, a theory of scientific rationality. For Popper, a theory is scientific only if it is empirically falsifiable, that is, if it is possible … Read More

About God in Newton’s correspondence with Richard Bentley and Queries in Opticks

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Correspondence with Richard Bentley In Newton’s correspondence with Richard Bentley, Newton rejected the possibility of remote action, even though he accepted it in the Principia. On February 25, 1692/93, in the third letter addressed to Bentley, Newton wrote: “It is … Read More

Newton’s Principia on God-mediated action

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As John Henry states, (Henry 2011) Newton simply wants to reaffirm the truth of God’s omnipresence without directly involving him in the physics of the world system. Newton simply wants to distance himself from a Cartesian concept of God and … Read More

Paradoxes of causal loops in spacetime

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There is, among some scientists and philosophers, the idea that any theory that would allow the time travel would introduce causal issues. (Bolonkin 2011) These types of temporal paradoxes can be avoided by the Novikov self-consistency principle or by a … Read More

Space, time, and time travel

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Newton supported the idea of absolute time, unlike Leibniz, for which time is only a relation between events and cannot be expressed independently, a statement in concordance with the relativity of space-time. (Crisp 2007) Eternalism claims that the past and … Read More

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