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DARPA

(Encyclopedia)DARPA: see Defense Advanced Research Projects Agency. ...

European Astronaut Center

(Encyclopedia)European Astronaut Center (EAC): see European Space Agency. ...

European Launcher Development Organization

(Encyclopedia)European Launcher Development Organization (ELDO): see European Space Agency. ...

European Space Operations Center

(Encyclopedia)European Space Operations Center (ESOC): see European Space Agency. ...

European Space Research Institute

(Encyclopedia)European Space Research Institute (ESRIN): see European Space Agency. ...

European Space Research Organization

(Encyclopedia)European Space Research Organization (ESRO): see European Space Agency. ...

photosynthesis

(Encyclopedia)photosynthesis fōˌtōsĭnˈthəsĭs [key], process in which green plants, algae, and cyanobacteria utilize the energy of sunlight to manufacture carbohydrates from carbon dioxide and water in the pr...

fossil fuel

(Encyclopedia)fossil fuel: see energy, sources of; fuel. ...

combining weight

(Encyclopedia)combining weight, the proportion (by weight) in which a chemical element combines with other elements to form compounds. The determination of combining weights was a very important part of early chemi...

Hofstadter, Robert

(Encyclopedia)Hofstadter, Robert, 1915–90, American physicist, b. New York City, Ph.D. Princeton, 1938. He taught at Princeton from 1938 to 1950 and also worked at the National Bureau of Standards during World Wa...