Abstract
Light, or other wave energy, is assumed to travel in a straight line at uniform speed, provided the medium through which it is travelling has uniform properties. Thus, the speed of light in a vacuum is ‘c,’ but a light ray travelling through water will travel at an appreciably lower velocity, and in some peculiar forms of matter it is possible for light to travel at only a few meters per second.
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© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
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Olsen, A.A. (2024). Refraction, Dip and Mirage. In: Introduction to Celestial Navigation. Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, vol 15. Springer, Cham. https://doi.org/10.1007/978-3-031-47542-9_8
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DOI: https://doi.org/10.1007/978-3-031-47542-9_8
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