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Tamil Nadu

(Encyclopedia) Tamil NaduTamil Nadutămˈəl näˈd&oomacr; [key], formerly MadrasTamil Nadumədrăsˈ, mədräsˈ [key], state (2001 provisional pop. 62,110,839), 50,180 sq mi (129,966 sq km), SE India, on…

Luria, Alexander Romanovich

(Encyclopedia) Luria, Alexander RomanovichLuria, Alexander Romanovichŭlˌyĭksänˈdər rōmänˈəvyĭchˌ l&oobreve;rˈēä [key], 1902–77, Soviet psychologist. Luria made advances in many areas, including…

blackleg

(Encyclopedia) blackleg or black quarter, acute infectious disease of cattle, less often of sheep, caused by an organism of the genus Clostridium. It is characterized by inflammation of muscles with…

photographic processing

(Encyclopedia) photographic processing, set of procedures by which the latent, or invisible, image produced when a photographic film is exposed to light is made into a permanent visible image.…

Dust Bowl

(Encyclopedia) Dust Bowl, the name given to areas of the U.S. prairie states that suffered ecological devastation in the 1930s and then to a lesser extent in the mid-1950s. The problem began during…

wilderness

(Encyclopedia) wilderness, land retaining its primeval character with the imprint of humans minimal or unnoticeable. In the United States, the Wilderness Act of 1964 established the National…