Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 209
... action of acids on iron and studied a number of other artificial airs . The inven- tion of the pneumatic trough to collect gases over water is generally credited to S. Hales ; however , in spite of the fact that he pre- pared a number ...
... action of acids on iron and studied a number of other artificial airs . The inven- tion of the pneumatic trough to collect gases over water is generally credited to S. Hales ; however , in spite of the fact that he pre- pared a number ...
Strona 213
... action of sulphuric acid on iron , and we read of 80 tons of iron , together with 190 tons of sulphuric acid being required to fill a captive balloon at the Paris Exhibition in 1878 . The commercial practicable methods of making ...
... action of sulphuric acid on iron , and we read of 80 tons of iron , together with 190 tons of sulphuric acid being required to fill a captive balloon at the Paris Exhibition in 1878 . The commercial practicable methods of making ...
Strona 223
... action of y - rays was ex- amined , the absorption of the y - rays from radium ( B + C ) filtered by 1.6 cm . of lead has been measured by a photographic method . With this lead filter the absorp- tion is exponential . The absorption μ ...
... action of y - rays was ex- amined , the absorption of the y - rays from radium ( B + C ) filtered by 1.6 cm . of lead has been measured by a photographic method . With this lead filter the absorp- tion is exponential . The absorption μ ...
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