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- W2183639950 abstract "Examination of three difficulties in Lucretius' account of vision in book 4 helps to clarify exactly what is involved in the theory that vision takes place by means of a stream of images from the object seen to the eye. The three issues considered are: the apparent conflict in using similar arguments both for the continuity of the stream of visual images and for the rapidity of their travel; the problem of simultaneous awareness of the distance both of closer and more remote objects; and the explanation of why we can see into a lighted room from the dark but not in the reverse direction. It is argued that the difficulties can be resolved if we suppose that the images travel so rapidly that one arrives at our eye before its successor departs from the object we are seeing. The paper concludes with reflections on the implications of this for our general understanding of the atomic theory and for our assessment of Lucretius' portrayal of it. At 4.143-75 Lucretius argues for the constant flow of visual images (which is the translation I shall throughout use for e‡dwla/simulacra), and at 4.176-215 for their speed. 2 At 4.155-8 he argues for the former point from the fact that images of objects appear in a mirror as soon as they are placed in front of it, and at 4.209-15 for the latter from the fact that the distant stars are immediately visible when water, serving as a mirror, is placed beneath the clear sky. But, as Lackenbacher 1910, 224 observed, the first argument negates the second; if images are constantly streaming down from the stars, the fact that the stars are reflected in the water as soon as it is placed there does not show that images travel quickly from the stars, for they will have been on their way already. Or so it might seem: in fact there is an answer, as we shall see. But first, another problem." @default.
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- W2183639950 date "2002-01-01" @default.
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- W2183639950 title "Some problems in Lucretius' account of vision 1" @default.
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