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thirst

(Encyclopedia)thirst, sensation indicating the body's need for water. Dry or salty food and dry, dusty air may induce such a sensation by depleting moisture in the mucous membranes of the mouth and throat. Relief t...

thunder

(Encyclopedia)thunder, sound produced along a path of a lightning flash, caused by the rapid heating and expansion of the adjacent air; lightning can heat air to temperatures as much as five times hotter than those...

pothole

(Encyclopedia)pothole, in geology, cylindrical pit formed in the rocky channel of a turbulent stream. It is formed and enlarged by the abrading action of pebbles and cobbles that are carried by eddies, or circular ...

Haber process

(Encyclopedia)Haber process häˈbər [key], commercial process for the synthesis of ammonia, NH3. Pure hydrogen and nitrogen gases are mixed in the appropriate proportion, heated to between 450℃ and 600℃, comp...

World Meteorological Organization

(Encyclopedia)World Meteorological Organization (WMO), specialized agency of the United Nations; established in 1950 with headquarters at Geneva, it became affiliated with the United Nations a year later. It replac...

Bican, Josef

(Encyclopedia)Bican, Josef, 1913–2001, Czech soccer player, b. Vienna. A forward with over 800 competitive goals, he is considered by many to be soccer's greatest scorer. Known as “Pepi,” Bican joined Rapid V...

Biobío

(Encyclopedia)Biobío bēˈō– [key], river, c.240 mi (390 km) long, rising in the Andes of central Chile and flowing NW to the Pacific Ocean near Concepción. It forms a natural divide between middle and souther...

Maduro Moros, Nicolás

(Encyclopedia)Maduro Moros, Nicolás nēkōläsˈ mädo͞oˈrō mōˈrōs [key], 1962–, Venezuelan trade union and political leader. He was trained as a union organizer in Cuba, and later became a leader in an un...

speculation

(Encyclopedia)speculation, practice of engaging in business in order to make quick profits from fluctuations in prices, as opposed to the practice of investing in a productive enterprise in order to share in its ea...

Amsterdam, city, Netherlands

(Encyclopedia)Amsterdam ămˈstərdămˌ, Dutch ämstərdämˈ [key], city (2021 pop. 1,157,519), constitutional capital and largest city of the Kingdom of the Netherlands, Nort...