directional change
1Directional stability — is stability of a moving body or vehicle about an axis which is perpendicular to its direction of motion. Stability of a vehicle concerns itself with the tendency of a vehicle to return to its original direction in relation to the oncoming medium …
2Directional light — may refer to: Shading#Light sources Headlamp#Directional headlamps Light beam Light tube See also Direction (disambiguation) Light (disambiguation) This disambiguation page lists artic …
3Directional derivative — In mathematics, the directional derivative of a multivariate differentiable function along a given vector V at a given point P intuitively represents the instantaneous rate of change of the function, moving through P in the direction of V. It… …
4social change — ▪ sociology Introduction in sociology, the alteration of mechanisms within the social structure, characterized by changes in cultural symbols, rules of behaviour, social organizations, or value systems. Throughout the historical… …
5Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port …
6Non-directional beacon — Radio Tower of NKR Leimen Ochsenbach, Germany This symbol denotes an NDB on an aeronaut …
7climate change — Introduction periodic modification of Earth s climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic factors within the Earth …
8evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… …
9Largest-scale trends in evolution — The history of life on Earth seems to show a clear trend; for example, it seems obvious that there is a trend towards increasing complexity in living organisms. More recent organisms, such as mammals, appear to be much more complex than older… …
10Sociocultural evolution — Cultural evolution redirects here. For gene culture coevolution, see Dual inheritance theory. Sociology …
