Journal article

### Dynamical, biological, and anthropic consequences of equal lunar and solar angular radii

Abstract:

The nearly equal lunar and solar angular sizes as subtended at the Earth is generally regarded as a coincidence. This is, however, an incidental consequence of the tidal forces from these bodies being comparable. Comparable magnitudes implies strong temporal modulation, as the forcing frequencies are nearly but not precisely equal. We suggest that on the basis of paleogeographic reconstructions, in the Devonian period, when the first tetrapods appeared on land, a large tidal range would accom...

Publication status:
Published

### Access Document

Publisher copy:
10.1098/rspa.2014.0263

### Authors

More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Publisher:
Royal Society of London
Journal:
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume:
470
Issue:
2168
Pages:
20140263-20140263
Publication date:
2014-06-02
DOI:
EISSN:
1471-2946
ISSN:
1364-5021
URN:
Source identifiers:
477145
Local pid:
pubs:477145
Language:
English
Keywords: