The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 566
... glass tube and a second liquid , immiscible with the first , was percolated through it . Silica gel served as the granu- lar solid , and Martin and Synge pictured the gel as com- posed of water tightly bonded to the crystals of silica ...
... glass tube and a second liquid , immiscible with the first , was percolated through it . Silica gel served as the granu- lar solid , and Martin and Synge pictured the gel as com- posed of water tightly bonded to the crystals of silica ...
Page 744
... glasses . Along with the development of water clocks during the 1st century AD , sand glasses , which measured time by means of sand running from one glass vessel to another through a narrow passage , were intro- duced . Some of these ...
... glasses . Along with the development of water clocks during the 1st century AD , sand glasses , which measured time by means of sand running from one glass vessel to another through a narrow passage , were intro- duced . Some of these ...
Page 809
... glass and ceramics industries . Cobalt oxide additions of from five ounces to ten pounds ( 140 to 4,500 grams ) per ton of glass are made to impart a blue colour to structural glass , bottles , and optical filter glasses . To neutralize ...
... glass and ceramics industries . Cobalt oxide additions of from five ounces to ten pounds ( 140 to 4,500 grams ) per ton of glass are made to impart a blue colour to structural glass , bottles , and optical filter glasses . To neutralize ...
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