Wednesday 6 May 2009

Crepuscular Rays

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It is interesting that the Ancient Greeks believed that sunbeams drew water into the sky (an early description of evaporation) and so they called this phenomena sun drawing water. Looking at this picture I took recently, you can see why they might have thought that!
These sunbeams are technically called Crepuscular rays. Rays of sunlight that appear to radiate from a single point in the sky. These rays stream through gaps in clouds the columns of sunlit air are separated by darker cloud-shadowed regions. The name comes from their frequent occurrences during crepuscular hours (those around dawn and dusk), when the contrasts between light and dark are the most obvious.

2 comments:

Irene said...

To me a sunray like this is light coming from heaven because someone forgot to close the heaven's door :)

Wonderful photography! Love your TTV's, especially the ones of Cornwall. A place I haven't visited yet and is still on my wishlist. One day.....

Jo Bradford said...

Irene, that's such a lovely way to look at the light :)

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