A highway mirage is an inferior mirage which can be seen very commonly on roadways by day or by night. This hot-road mirage is usually most noticeable on hot sunny days. It seems to look like a 'pool', however when you get closer you realise that it actually isn't there. Warm air is less dense than cool air, and the variation between the hot air at the surface of the road and the denser cool air above it creates a gradient in the refractive index of the air. Light from the sky at a shallow angle to the road is refracted by the index gradient, making it appear as if the sky is reflected by the road's surface. The mind interprets this as a pool of water on the road, since water also reflects the sky.
Famous quotes containing the words mirage and/or highway:
“... the idea of a classless society is ... a disastrous mirage which cannot be maintained without tyranny of the few over the many. It is even more pernicious culturally than politically, not because the monolithic state forces the party line upon its intellectuals and artists, but because it has no social patterns to reflect.”
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“My manner is the footnote to your immoral
Beauty, that leads me with a magic hair
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