Um multiverso medieval: modelo matemático do universo de Robert Grosseteste do século 13

segunda-feira, agosto 18, 2014

A Medieval Multiverse: Mathematical Modelling of the 13th Century Universe of Robert Grosseteste

Richard G. Bower (Durham), Tom C. B. McLeish F.R.S. (Durham), Brian K. Tanner (Durham), Hannah E. Smithson (Oxford), Cecilia Panti (Rome), Neil Lewis (Georgetown), Giles E. M. Gasper (Durham)

(Submitted on 4 Mar 2014 (v1), last revised 10 Mar 2014 (this version, v2))

In his treatise on light, written in about 1225, Robert Grosseteste describes a cosmological model in which the Universe is created in a big-bang like explosion and subsequent condensation. He postulates that the fundamental coupling of light and matter gives rises to the material body of the entire cosmos. Expansion is arrested when matter reaches a minimum density and subsequent emission of light from the outer region leads to compression and rarefaction of the inner bodily mass so as to create nine celestial spheres, with an imperfect residual core. In this paper we reformulate the Latin description in terms of a modern mathematical model. The equations which describe the coupling of light and matter are solved numerically, subject to initial conditions and critical criteria consistent with the text. Formation of a universe with a non-infinite number of perfected spheres is extremely sensitive to the initial conditions, the intensity of the light and the transparency of these spheres. In this "medieval multiverse", only a small range of opacity and initial density profiles lead to a stable universe with nine perfected spheres. As in current cosmological thinking, the existence of Grosseteste's universe relies on a very special combination of fundamental parameters.

Comments: 16 pages, 8 figures. Accepted for Proceedings of the Royal Society (A) subject to minor revisions. Animated versions of the figures are available at this http URL

Subjects: History and Philosophy of Physics (physics.hist-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)

Cite as: arXiv:1403.0769 [physics.hist-ph]

(or arXiv:1403.0769v2 [physics.hist-ph] for this version)

Submission history

From: Richard Bower [view email] 

[v1] Tue, 4 Mar 2014 12:54:50 GMT (1405kb)

[v2] Mon, 10 Mar 2014 22:54:45 GMT (1405kb)





Não pense que o modelo de multiverso de Robert Grosseteste, por ser do século 13, seja estapafúrdio - tem muito mais matemática que falta em muitos estudos e pesquisas cosmológicas atuais.