ENVIRONMENT
Photo credit: Weatherwars.Info.  Chemicals in aerosols can refract light.  A range of  colours may become visible.

Photo credit: Weatherwars.Info. Chemicals in aerosols can refract light. A range of colours may become visible.

Credit: Weatherwars.Info

Clare Swinney

30 September 2011, 12:48PM

Clare Swinney

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