The History and Practice of Ancient Astronomy
- James Evans
- Physics
- 1 October 1998
Preface 1. The Birth of Astronomy 2. The Celestial Spheres 3. Some Applications of Spherics 5. Solar Theory and Time Reckoning 6. The Fixed Stars 7. Planetary Theory Bibliography Appendix: Patterns…
Physics, the Human Adventure: From Copernicus to Einstein and Beyond
- James Evans
- Physics, Education
- 1 March 2001
This work is the third edition of the classic text "Introduction to Concepts and Theories in Physical Science". It has been reworked to further clarify the physics concepts and to incorporate…
The Mathematics Of The Heavens And The Earth: The Early History Of Trigonometry
- James Evans
- Philosophy, Mathematics
- 31 August 2013
Electric potential in the classical Hall effect: An unusual boundary-value problem
- M. Moelter, James Evans, G. Elliott, M. Jackson
- Mathematics
- 14 July 1998
The classical Hall effect presents a surprisingly unusual and challenging problem in electrostatics, with boundary conditions that are not of Dirichlet, Neumann, or of mixed Dirichlet and Neumann…
Mechanical Astronomy: A Route to the Ancient Discovery of Epicycles and Eccentrics
- James Evans, C. Cannan
- Physics
- 2014
The ancient Greek art of spbairopoiia was devoted to the building of models of the universe such as celestial globes and annillary spheres. But it also included the construction of geared mechanisms…
Conceptions Of Cosmos: From Myths To The Accelerating Universe: A History Of Cosmology
- James Evans
- Physics
- 2008
The Two Earths of Eratosthenes
- Christián C. Carman, James Evans
- PhysicsIsis
- 1 March 2015
This essay shows that Eratosthenes’ result of 252,000 stades for the Earth’s circumference follows from a solar distance that is attributed to him, indicating not only a lower limit for the size of the Earth, but also an upper limit, based on the assumption that the Sun is at a finite distance.
The Material Culture of Greek Astronomy
- James Evans
- Art
- 1 August 1999
Ce document reprend en detail, a l'aide de supports photographiques et d'esquisses, les differents instruments mis au point par les Grecs qui leur permettaient d'effectuer leurs calculs en astronomie…
On the function and the probable origin of Ptolemy's equant
- James Evans
- Physics
- 1 December 1984
We examine the roles of the equant point and the eccentric deferent circle in Ptolemy’s planetary theory. The necessity of these features of the model is demonstrated empirically by a study of the…
The optical–mechanical analogy in general relativity: New methods for the paths of light and of the planets
- James Evans, K. K. Nandi, Anwarul Islam
- Physics
- 1 November 1996
The optical–mechanical analogy involves the expression of geometrical optics and particle mechanics in the same mathematical language. In this paper, an especially simple version of the…
...
...