О, эта самая книжка (только я видел русский перевод). Ну собственно про радугу там не многим более страницы, остальное про "боганет". И даже цитату нашел:
The sun is behind and slightly above you, and light from it enters the raindrop. At the boundary of air with water it is refracted and the different wavelengths that make up the sun's light are bent through different angles, as in Newton's prism. The fanned out colours go through the interior of the raindrop until they hit its concave far wall, where there they are reflected, back and down. They leave the raindrop again and some of them end up at your eye. As they pass from water back into air they are refracted for a second time, the different colours again being bent through different angles.
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Партийная организация и партийная литература
Date: 2019-03-19 01:25 pm (UTC)The sun is behind and slightly above you, and light from it enters the
raindrop. At the boundary of air with water it is refracted and the
different wavelengths that make up the sun's light are bent through
different angles, as in Newton's prism. The fanned out colours go
through the interior of the raindrop until they hit its concave far wall,
where there they are reflected, back and down. They leave the
raindrop again and some of them end up at your eye. As they pass
from water back into air they are refracted for a second time, the
different colours again being bent through different angles.