Wright, Mark R., 1854- · London : Longmans · leaf 120
Fig. go. … Refraction of Light—Lenses 111 under water appears to be raised (fig. 90). The rays from thepart under water are refracted as in fig. 87. The atmosphere is less denseas we ascend; we can supposeit to be made up of layers. Therays of light from the sun or a star,instead of coming in straight…
Physics
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