The Metaphysics of Light in the Hexaemeral Literature: From Philo of Alexandria to Gregory of Nyssa by Isidoros C. Katsos;

Author:Isidoros C. Katsos; [Katsos, Isidoros C.]
Language: eng
Format: epub
ISBN: 9780192695871
Publisher: Oxford University Press USA
Published: 2023-02-08T00:00:00+00:00

3.2 Going Ballistic: The Singularity of the Light Ray

The Apology mentions the light ray (aktis) in several different contexts. The ray theory helps explain the magnitude of the sun (§32), the evaporation of surface water (§33), the infiltration of space with light (§48), the distance of the stars (§70), and the light of the moon (§70). The references explicitly presuppose some version of a ray theory.45 But the systematic exposition of the theory itself and its details are left for the intelligent reader to figure out. That is what I here propose to do. In what follows, I shall attempt a systematic reconstruction of the ray theory underlying the Apology, pieced together from clues scattered here and there.

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