Newspaper article Daily News (Warwick, Australia)

Don'tyoulovealittle Ray of Sunshine?

Newspaper article Daily News (Warwick, Australia)

Don'tyoulovealittle Ray of Sunshine?

Article excerpt

WHO loves sunsets and the rays protruding from the point of the sun at sunrise and sunset? Did you know these rays have a name? They are called crepuscular rays.

They stream through gaps in the clouds and other atmospheric conditions and appear to us as rays of sunlight separated by darker regions.

Dust in the atmosphere, water vapour in the form of clouds and aerosols in the atmosphere are just a few of the reasons we see them. They also appear to radiate from one point in the sky where the sun is but this, in fact is not true.

These rays are almost parallel as they stream across the sky.

This is due to a perspective effect. Imagine you are standing on a railway track and you look down the track into the distance.

The two rails appear to converge on the horizon and this is the same effect that we see with crepuscular rays. the name crepuscular comes from the Latin word, "crepusculum" meaning twilight and the hours between dawn and dusk are known as The Crepuscular Hours. …

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