Boston Journal of Philosophy and the Arts: Intended to Exhibit a View of the Progress of Discovery in Natural Philosophy, Mechanics, Chemistry, Geology and Mineralogy, Natural History, Comparative Anatomy and Physiology, Geography, Statistics, and the Fine and Useful Arts, 2권Cummings, Hilliard, & Company, 1825 |
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34개의 결과 중 1 - 5개
41 페이지
... sulphuric acid . The glass bell but just passed over it , so that the base of the included column of air rested every where upon the acid . In the centre of the dish , was a stand with glass feet , which supported a light glass vessel ...
... sulphuric acid . The glass bell but just passed over it , so that the base of the included column of air rested every where upon the acid . In the centre of the dish , was a stand with glass feet , which supported a light glass vessel ...
42 페이지
... sulphuric acid , under these circumstances , maintained . the air in a state of almost perfect dryness . EXPERIMENT 2. - The same trial was made with atmos- pheres variously rarefied , by means of the pump . No de- position of moisture ...
... sulphuric acid , under these circumstances , maintained . the air in a state of almost perfect dryness . EXPERIMENT 2. - The same trial was made with atmos- pheres variously rarefied , by means of the pump . No de- position of moisture ...
43 페이지
... sulphuric acid in a glass , of the diameter of 2.8 inches , so that its sur- face was very little more than equal to that of the water . The vessels were placed side by side , upon the plate of the air - pump , and covered with the ...
... sulphuric acid in a glass , of the diameter of 2.8 inches , so that its sur- face was very little more than equal to that of the water . The vessels were placed side by side , upon the plate of the air - pump , and covered with the ...
44 페이지
... sulphuric acid of nearly equal dimen- sions with its base . Upon a tripod of glass , standing in the acid , was placed a vessel containing a little water , into which the thermometer could be dipped and withdrawn by means of the sliding ...
... sulphuric acid of nearly equal dimen- sions with its base . Upon a tripod of glass , standing in the acid , was placed a vessel containing a little water , into which the thermometer could be dipped and withdrawn by means of the sliding ...
45 페이지
... sulphuric acid in the receiver , prevent its universal diffusion . This never - failing cause is inequality of temperature . As in the small experiment we found that the degree of dryness was proportioned to the energy of the ab ...
... sulphuric acid in the receiver , prevent its universal diffusion . This never - failing cause is inequality of temperature . As in the small experiment we found that the degree of dryness was proportioned to the energy of the ab ...
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action angle animals appears arrack ascertained atmosphere aurora borealis ball beds carbonic carbonic acid cause centre circumstances clay coco-nut coefficient colour conductor considerable contains copper crystals degree deposits diameter direction distance earth electricity employed equal Europe evaporation experiments exposed feet fissures fluid formation geognostical glass gneiss granite greywackes height hornblende hyæna hydrogen inches iron Klaproth labour larvæ latitude less light lignite limestone luminous magnetic manner mass means mercury metal miles mineral mixture mountains muriatic acid nature nearly needle nitric acid observed obtained oxide oxygen paratonnerre pass plate platinum poison porphyries portion present produced proportion Puracé quantity quartz rays remarkable rendered rocks selenium shock slate species specimens stone substance sufficient sulphuric acid surface syenite temperature term thermometer tion trachytes tree vapour vessel volcano whole wire zinc