Nature, Volume 103Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Página 200
... measuring X - rays and its applica- tion to the measurement of the radiation from Coolidge bulbs . Measurements with fluorescent screens cannot give a value of the radiation in abso- lute measure , since the fraction of the incident ...
... measuring X - rays and its applica- tion to the measurement of the radiation from Coolidge bulbs . Measurements with fluorescent screens cannot give a value of the radiation in abso- lute measure , since the fraction of the incident ...
Página 276
... measuring and inspecting screw gauges ( Metrology Department ) . A vertical projec- tion machine shown produces an ... measure- ment of the growth of trees . An " invar " tape was passed round the tree and over the " rockers " on the ...
... measuring and inspecting screw gauges ( Metrology Department ) . A vertical projec- tion machine shown produces an ... measure- ment of the growth of trees . An " invar " tape was passed round the tree and over the " rockers " on the ...
Página 332
... measurements to be made on slip - gauges . The instrument serves to indicate the difference between the gauges under ... measuring and inspecting screw - gauges were exhibited :-( 1 ) Screw diameter- measuring machines of the floating ...
... measurements to be made on slip - gauges . The instrument serves to indicate the difference between the gauges under ... measuring and inspecting screw - gauges were exhibited :-( 1 ) Screw diameter- measuring machines of the floating ...
Índice
October 9 1919 | xxxii |
Stefanik Genl M obituary 231 | xxxviii |
Storkerson S Arrival with his party on the Alaskan | 8 |
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