control density
121Urban planning — Housing and Urban Development redirects here. For the Cabinet department of the United States government, see United States Department of Housing and Urban Development. Urban planning designs settlements, from the smallest towns to the largest… …
122Fusion power — The Sun is a natural fusion reactor. Fusion power is the power generated by nuclear fusion processes. In fusion reactions two light atomic nuclei fuse together to form a heavier nucleus (in contrast with fission power). In doing so they release a …
123Cotati, California — The City of Cotati   City   Logo …
124Fire sprinkler system — A fire sprinkler system is an active fire protection measure, consisting of a water supply, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected. Although historically only used… …
125Zone system — The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer in 1941. The Zone System provides photographers with a systematic method of precisely defining the… …
126Colors of noise — White Pink Red (Brownian) Grey While noise is by definition derived from a random signal, it can have different characteristic statistical properties corresponding to different mappings from a source of randomness to the concrete noise. Spectral… …
127Drilling mud — In geotechnical engineering, drilling mud, also known as spud mud (when beginning the drilling process), is a drilling fluid used to drill boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling… …
128Arundo donax — Giant Cane (Arundo donax) Scientific classification Kingdom: Plantae …
