Water
A steep density gradient in a body of water can have the effect of trapping energy and preventing convection, such a gradient is employed in solar ponds. In the case of salt water, sharp gradients can lead to stratification of different concentrations of salinity. This is called a Halocline.
Read more about this topic: Density Gradient
Famous quotes containing the word water:
“A spring,
A pool among the rock
If there were the sound of water only”
—T.S. (Thomas Stearns)
“But sound of water over a rock
Where the hermit-thrush sings in the pine trees
Drip drop drip drop drop drop drop
But there is no water”
—T.S. (Thomas Stearns)
“Reasoning with a drunkard is like
Going under water with a torch to seek for a drowning man.”
—Tiruvalluvar (c. 5th century A.D.)
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