The Encyclopedia Americana, Volume 7Grolier, 1985 - Encyclopedias and dictionaries |
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Page 145
... important use of coal tar pitch itself in the United States is as a fuel . It is widely used in steel manufacturing as the fuel for open - hearth furnaces . Another important use of pitch is in the manufacture of carbon electrodes ...
... important use of coal tar pitch itself in the United States is as a fuel . It is widely used in steel manufacturing as the fuel for open - hearth furnaces . Another important use of pitch is in the manufacture of carbon electrodes ...
Page 581
... important tim- ber sources . Enormous quantities of various spe- cies provide construction lumber . " Hard " pine lumber comes from the southern longleaf pine ( P. palustris ) , and " soft " pine lumber is cut principally from white ...
... important tim- ber sources . Enormous quantities of various spe- cies provide construction lumber . " Hard " pine lumber comes from the southern longleaf pine ( P. palustris ) , and " soft " pine lumber is cut principally from white ...
Page 760
... important properties of bulk copper is its very high electrical conductivity . This property ac- counts for the extensive use of copper in the electrical industry . The high electrical con- ductivity of copper is intimately associated ...
... important properties of bulk copper is its very high electrical conductivity . This property ac- counts for the extensive use of copper in the electrical industry . The high electrical con- ductivity of copper is intimately associated ...
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