Duhem, the Arabs, and the history of cosmology

Synthese ◽  
1990 ◽  
Vol 83 (2) ◽  
pp. 201-214 ◽  
Author(s):  
F. Jamil Ragep
Author(s):  
Timothy Clifton

Cosmology began as a scientific discipline at the beginning of the 20th century, with the work of Albert Einstein and Edwin Hubble. Gravitational interaction is fundamental to cosmology, as gravity dominates over all other forces on large-scale distances. ‘Cosmology’ outlines the modern history of cosmology, discussing how studies have provided knowledge on the early Universe and its expansion. The Concordance Model proposes that only c.5 per cent of the energy in the Universe is in the form of normal matter; c.25 per cent is in the form of the gravitationally attractive dark matter; and the remaining c.70 per cent is in the form of the gravitationally repulsive dark energy. But there is still much to learn.


Nature ◽  
1959 ◽  
Vol 184 (4690) ◽  
pp. 836-836
Author(s):  
E. J. DIJKSTERHUIS

2014 ◽  
Vol 26 ◽  
pp. 46-61
Author(s):  
Bob Watt

This is a response to John Gardner’s article – The wrongness of rape. It claims that Gardner is fundamentally or radically wrong; not by attacking his careful and well-constructed argument from the ‘inside’ – by attempting to demonstrate some logical flaw in his argument – but by attacking his world-view. He shows us a world which simply does not accord with reality as perceived in our everyday lives by most, or all, of us. Whilst many philosophers, and certainly most philosophers of law, analyse the world in the way exemplified by Gardner, it is to be hoped that they reserve this analysis to their professional lives and do not make the mistake of thinking that it is connected with reality. For them reason prevails with emotion being relegated to the status of a mere ‘epiphenomenon’; whilst, for most of us, our emotional life is at least as important as our rational life.This article is an invitation to Gardner and others to make a ‘paradigm shift’ in the sense proposed by Thomas Kuhn. Kuhn, in his explanation of the history of cosmology, showed how in order to explain the observed motion of the planets increasingly complicated systems of circular orbits were used (consisting of cycles, epicycles, epi-epicycles and so forth). These complex systems of orbits were used to explain the motion of the planets round the sun because people refused to believe that the planets could move in anything other than perfect circles. However, as the observational data grew it became clear that no system of circular orbits, no matter how complex, could explain the observations. When Johannes Kepler advanced the work of Nicolas Copernicus, Tycho Brahe and Galileo Galilei and showed that the orbit of Mars could be best modelled by showing that it was elliptical, the problem was solved. Similarly, it is averred that no system of purely rational explanation, such as that advanced by Gardner, can explain the wrongness of rape. The explanation needs to start from a different position by explicitly including emotion in the explanation. 


Author(s):  
Andrew N. Pavlenko

If the 17th century could be considered the century of the reformation of science, the present century is one of counterreformation in every sense of the word. The ideology of this century can be seen in the titanic efforts to complete the development of science which foundation was laid in the 17th and 18th centuries, in the outright failures, and in attempts at reconstructing the foundation (e.g., Hilbert's formalization program, Gödel's incompleteness theorem, Charlier's theory of a hierarchic universe, Fridman's evolutionary cosmology, Newton's mechanics, relativistic and/or quantum mechanics in physics, the logical turn of the Vienna circle and epistemological anarchism in methodology). Our task is to reveal the essence of the turning points in 20th century science and to determine at least the general outlines, if not the cause, of the new type of rationality that is replacing the old one. I will focus on the history of cosmology, or rather on its three paradigms that have succeeded each other in this century: Newtonian, Fridmanian and the inflationary paradigms. By outlining the problem, I will pose a possible solution from clarifying changes in the value orientations, ideals and norms of scientific research to their possible generalization.


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