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Anaximander's Rings

Published online by Cambridge University Press:  11 February 2009

István M. Bodnár
Affiliation:
Eötvös University, Budapest

Extract

Anaximander is the first philosopher whose theory of the heavens is preserved in broad outlines. According to the sources the celestial bodies are huge rings of compressed air around the earth, each visible only where it is perforated by a tubular vent through which the fire contained in it can shine. Greatest and farthest of them is the sun, next comes the moon and under them there is the ring (or possibly rings) of the stars. It is a common practice to put and answer the following questions:

(i) ‘…why he should have placed the stellar circles or rings closer to the earth than are the sun and the moon.’

(ii) ‘…why these lower rings of stellar ρ do not obscure the brighter but more distant bodies.’

Type
Research Article
Copyright
Copyright © The Classical Association 1988

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References

1 A21, All

2 A22.

3 Its size is not reported. Tannery, , Pour l'histoire de la science hellène 2 (Paris, 1930), pp. 84fGoogle Scholar., suggested that it was 9 times as great as the earth, thus forming an arithmetical sequence: 9–18–27. The order is given in A11, A18.

4 Kahn, C. H., Anaximander and the Origins of Greek Cosmology (New York, 1960), p. 89Google Scholar.

5 Kahn, , op. cit., p. 90Google Scholar.

6 Tannery's conjecture has become a classic: flame is seen only at the orifice, because inside the tube it does not emit light. The ρ does not have to obstruct the light of the fire inside, so it will be perfectly translucent for the light of the bodies behind it.

7 As I will argue in Section II we can give two different kinds of argument for this arrangement: one is to name the physical force(s) responsible for the constitution of the heavens, in particular the natural upward tendency of fire; while the other, which I am pursuing here, is to spell out the intrinsic motivation for a certain theory of the heavens to order the heavenly bodies in a particular way.

8 My proposal is the same as Kurt von Fritz's in a letter to Kahn, see Kahn, , op. cit., p. 90Google Scholar n. 3.

9 It is not clear from the testimonia whether the bands of the sun and the moon completely overlap, or only intersect at some point. In the standard illustrations the latter is presupposed (see e.g. Heath's, T. L. Fig. 3 in his Aristarchus of Santos [Oxford, 1913], p. 35)Google Scholar, and not argued for.

10 Cf. Diels, H., ‘Über Anaximanders Kosmos’, AGP 10 (1897), 229Google Scholar = Kleine Schriften, p. 14: ‘Es kann wohl keinem Zweifel unterliegen, dass die Helligkeit des Feuers zu dieser Rangordnung die Veranlassung gab.’ Diels, however, does not relate this ordering to the problem of visibility, and gives only a cosmogonical reason for it.

11 Kahn, , op. cit., p. 90Google Scholar.

12 Some would accept on the testimony of 28A37 DK. that Parmenides postulated a fiery core of the earth.

13 Anaximander is apparently unique in this opinion. And it is no use to refer to the fact that he was the very first of the tradition, a trend-setter rather than follower of established orthodoxies. Popular thought and theology alike regarded celestial bodies as individual and permanent bodies (as e.g. the chariot of Ἥλιος etc.), and not as epiphenomena of some substructure, so Anaximander's departure from the tradition has to be explained.

14 The argument as recorded by Aristotle employs the Principle of Sufficient Reason. An extensive analysis in Barnes, J., The Presocratic Philosophers (London, 1979), pp. 23–6Google Scholar.

15 W. K. C. Guthrie tried to assimilate the shape of the earth to that of the heavenly bodies by claiming that it was in fact a ring. See his A History of Greek Philosophy, i (Cambridge, 1962), p. 99Google Scholar, with notes 2 and 3.

16 Balance, as Classen, H. J. rightly insists, is the keynote in Anaximander's fragment and parallels the role of order in his cosmology (‘Anaximander and Anaximenes: The Earliest Greek Theories of Change?’, Phronesis 12 (1977), 98)Google Scholar. If my contention is right, balance will apply to the structure of the cosmos as well.