Water trough

Definition and stakes

William Hewitt,  An Essay on the Encroachments of the German Ocean Along the Norfolk Coast

“ If a long trough, divided in the middle by a sluice or partition, have one end filled with water, and the other with quick silver, both fluids will remain quiet so long as they are divided, but when the sluice is drawn up, the heavier fluid will rush along the bottom of the trough, while the lighter, from being displaced, will rise, and flowing in an opposite direction, spread itself at the top. ”
Source: Gutenberg

Portrait of Henry David Thoreau Henry David Thoreau,  Early Spring in Massachusetts (1881)

“ Thus even the meadow flood is parded, of various patches of color. Ever and anon the wind seems to drop down from over the hills in strong puffs, and then spread and diffuse itself in dark, fan-shaped figures over the surface of the water. It is glorious to see how it sports on the watery surface. You see a hundred such nimble-footed puffs drop and spread on all sides at once, and dash on, sweeping the surface of the water for forty rods in a few seconds, as if so many invisible spirits were playing tag there. ”
Source: Wikisource

Get perspective with Kwize: daily news enlightened by great literature