Depression. A region of relatively low barometric pressure. The winds circulate in an anti-clockwise direction around its centre in the Northern Hemisphere and in a clockwise direction in the Southern Hemisphere.
Simply create a depression where required; ie., some holes through which the air is sucked inside the wing (see Figure 3C). This again is not very practical.
A smooth surface depression that is caused by pressure or a hit from a smooth, rounded object. The parent material is displaced, but has not moved apart.
Related Definitions from Aviation Glossary ...
Drowsiness
Mental depression
Reduced sharpness of vision
Decreased co-ordination
Increased nervousness
Decreased depth of perception and cognitive judgement ...
And, the nation was in the middle of a soul-rending depression which slowed technologic advancement somewhat. That meant that there simply weren't any other reliable and practical small light-weight engines available at the time.
They disappeared fairly quickly as the depression wore on, although a few worked as sub-contractors on military programs well through WWII.
It was invented here during the depression of the 1930s, and the avenues you buy and sell in the game are named after those of the real Atlantic City.
a. Cleared, graded, and have no potentially hazardous ruts, humps, depressions, or other surface variations;
b. Drained by grading or storm sewers to prevent water accumulation; ...
It was a convincing argument, especially because it coincided with the need to save money because of the Great Depression, and the difficulty Governments faced in paying for mass unemployment.
The political pressures with which Chanute had to contend, following on the heels of his heroic but frustrated efforts to improve the scandal-ridden Erie Railroad, caused him to enter a period of depression and exhaustion.
 See also: Aviation, Aircraft, Plane, Speed, Force
  
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