Friday, January 15, 2016

The Colours of Water

"That cool, refreshing glass of water on a hot day may appear colorless, but water is actually a faint blue color. The blue color becomes visible when we look down into, or through, a large volume of water.
We see water in a variety of ways. It may be colored by particles, the presence of bacteria, or by reflecting the world above its surface. Ice and snow may reveal a vivid internal blue. Water itself has an intrinsic blue color that is a result of its molecular structure and its behavior."

We've got pictures of three bodies of water in Grimsby today.  The first is the Forty Creek, and we can see the muddy colour from sediment.  The second is recognizable as Grimsby Beach on the Lake with that blue tone. As these pictures were taken on the same day and within a half hour of each other, one can see how much the sky plays a part in creating the colour of water. And then we have the creek next to the Cemetery - it seems to be  black.

Wikipedia says: "A few tens of meters of water will absorb all light, so without scattering, all bodies of water would appear black."  
View this email in your browser

No comments:

Post a Comment