Browsing By Tag "carbon"
Browsing By Tag "carbon"
Pronunciation : Car"bon
Part of Speech : n.
Etymology : [F. carbone, fr. L. carbo coal; cf, Skr. (Chem.)
Definition : Defn: An elementary substance, not metallic in its nature, which is present in all organic compounds. Atomic weight 11.97. Symbol C. it is combustible, and forms the base of lampblack and charcoal, and enters largely into mineral coals. In its pure crystallized state it constitutes the diamond, the hardest of known substances, occuring in monometric crystals like the octahedron, etc. Another modification is graphite, or blacklead, and in this it is soft, and occurs in hexagonal prisms or tables. When united with oxygen it forms carbon dioxide, commonly called carbonic acid, or carbonic oxide, according to the proportions of the oxygen; when united with hydrogen, it forms various compounds called hydrocarbons. Compare Diamond, and Graphite. Carbon compounds, Compounds of carbon (Chem.), those compounds consisting largely of carbon, commonly produced by animals and plants, and hence called organic compounds, though their synthesis may be effected in many cases in the laboratory. The formation of the compounds of carbon is not dependent upon the life process. I. Remsen -Carbon dioxide, Carbon monoxide. (Chem.) See under Carbonic. -- Carbon light (Elec.), an extremely brilliant electric light produced by passing a galvanic current through two carbon points kept constantly with their apexes neary in contact. -- Carbon point (Elec.), a small cylinder or bit of gas carbon moved forward by clockwork so that, as it is burned away by the electric current, it shall contantly maintain its proper relation to the opposing point. -- Carbon tissue, paper coated with gelatine and pigment, used in the autotype process of photography. Abney. -- Gas carbon, a compact variety of carbon obtained as an incrustation on the interior of gas retorts, and used for the manufacture of the carbon rods of pencils for the voltaic, arc, and for the plates of voltaic batteries, etc.
Source : Webster's Unabridged Dictionary, 1913
This article appears in Anarchy Archives with the permission of the author. It appeared originally in The Progressive, August 1989, pp. 19-23. DEATH OF A SMALL PLANET It's growth that's killing us BY MURRAY BOOKCHIN We tend to think of environmental catastrophes -such as the recent Exxon Valdez oil-spill disaster in the Bay of Alaska-as "accidents": isolated phenomena that erupt without notice or warning. But when does the word accident become inappropriate? When are such occurrences inevitable rather than accidental? And when does a consistent pattern of inevitable disasters point to a deep-seated crisis that is not only environmental but profoundly social? President Bush was content to blame the spill of more than ten million gallons of c... (From : Anarchy Archives.)
This manuscript was provided to Anarchy Archives by the author. Ecology and Revolutionary Thought by Lewis Herber (pseudonym for Murray Bookchin) [Originally published in Bookchin’s newsletter Comment in 1964 and republished in the British monthly Anarchy in 1965.] In almost every period since the Renaissance, the development of revolutionary thought has been heavily influenced by a branch of science, often in conjunction with a school of philosophy. Astronomy in the time of Copernicus and Galileo helped to guide a sweeping movement of ideas from the medieval world, riddled by superstition, into one pervaded by a critical rationalism, openly naturalistic and humanistic in outlook. During the Enlightenment—the era that culminated i... (From : Anarchy Archives.)
Our Synthetic Environment Murray Bookchin Chapter 2 - Agriculture and Health Soil and Agriculture Problems of soil and agriculture seldom arouse the interest of urban dwellers. Town and country have become so sharply polarized that the city man and the farmer live in widely separated, contrasting, and often socially antagonistic worlds. The average resident of an American metropolis knows as little about the problems of growing food as the average farmer knows about the problems of mass transportation. The city man, to be sure, does not need to be reminded that good soil is important for successful farming. He recognizes the necessity for conservation and careful management of the land. But his knowledge of food cultivation - its techniques, problems, and prospects - is limited. He leaves the land in trust to the farmer in the belief that modern agricultural methods cannot fail to produce attractive and nourishing food. In...