A region characterized by a set of places connected to another place by lines of communication or movement
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An example of a nodal region is a major airport, such as Atlanta Hartsfield-Jackson International Airport. It serves as a central point for air transportation and is surrounded by areas of influence, such as businesses that rely on the airport for economic activity.
The region of zero electron density is called a "node."
A functional nodal region is an area defined by the interactions and connections between nodes, or points of interest within a network. These nodes share functional relationships that influence the region's overall function or purpose, such as transportation hubs in a city or key organs in a biological system.
A nodal point refers to a point in an optical system such as a camera lens where light rays intersect without creating any lateral displacement in the image. It is important in photography for ensuring that panoramas stitch together seamlessly.
In molecular orbital theory, a node is a region in a molecular orbital where the probability of finding an electron is zero. A nodal plane is a two-dimensional surface through which no electron can pass, resulting in a node in the molecular orbital. Nodes play a crucial role in determining the shape and energy of molecular orbitals.
A city is an example of a formal region, which is defined by boundaries and characteristics set by an authority such as government officials.