Journal of the Society of Arts, 34 tomasSociety of Arts, 1886 |
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256 psl.
... metal ; this is easily lifted out by one man . If more metal is required , several crucibles are poured at once . These furnaces are , however , sometimes made of much greater size , and crucibles are used which will take 1,000 lbs . of ...
... metal ; this is easily lifted out by one man . If more metal is required , several crucibles are poured at once . These furnaces are , however , sometimes made of much greater size , and crucibles are used which will take 1,000 lbs . of ...
411 psl.
... metal was detached from the zinc , washed carefully , and fused on charcoal , before the blowpipe , to a globule . The metal , which proved to be hard , though it evidently contained much lead , was hammered into a convenient shape for ...
... metal was detached from the zinc , washed carefully , and fused on charcoal , before the blowpipe , to a globule . The metal , which proved to be hard , though it evidently contained much lead , was hammered into a convenient shape for ...
1087 psl.
a ducting material , such as lead , the effect would of masses of metal , instead of the resistance not have been nearly so marked ; but by using simply of wires of metal , as we have usually a high conducting material , such as copper ...
a ducting material , such as lead , the effect would of masses of metal , instead of the resistance not have been nearly so marked ; but by using simply of wires of metal , as we have usually a high conducting material , such as copper ...
Turinys
The Second Course will be on Friction By Prof H S HELE SHAW | 176 |
The Third Course will be on Science Teaching By Prof F GUTHRIE F R | 278 |
The Fourth Course will be on Petroleum and its Products By BOVERTON REDWOOD | 393 |
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