Bottom
Bottom may refer to:
Anatomy and sex
Art and fiction
Mathematics
Physics
Geography
Bottom (technical analysis)
In the technical analysis of security prices, a bottom is a chart pattern where prices reach a low, then a lower low, and then a higher low.
According to some technical analysis theories, the first low signifies the pressure from selling was greater than the pressure from buying. The second lower low suggests that selling still had more pressure than the buying. The third higher low suggests that buying pressure will not let prices fall as low as the previous low. This turning point from selling pressure to buying pressure is called a bottom.
Valley
A valley is a low area between hills, often with a river running through it.
In geology, a valley or dale is a depression that is longer than it is wide. The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, (at least) with respect to the cross section of the slopes or hillsides.
Valley terminology
A valley in its broadest geographic sense is also known as a dale. A valley through which a river runs may also be referred to as a vale. A small, secluded, and often wooded valley is known as a dell or in Scotland as a glen. A wide, flat valley through which a river runs is known in Scotland as a strath. A mountain cove is a small valley, closed at one or both ends, in the central or southern Appalachian Mountains which sometimes results from the erosion of a geologic window. A small valley surrounded by mountains or ridges is sometimes known as a hollow. A deep, narrow valley is known as a cwm (also spelled combe or coombe). Similar geological structures, such as canyons, ravines, gorges, gullies, and kloofs, are not usually referred to as valleys. See also: "chine". A valley formed by erosion is called an erosional valley; a valley formed by geologic events such as drop faults or the rise of highlands is called a structural valley.
