 | Edward Nugent - 1870 - 304 pàgines
...and lead in the melted state, consists of definite rays separated by dark intervals from each other; but the number, position, and colours of the lines...metals may be readily distinguished from each other. The investigations of Pliicker, published in 1858-9, relating to the effects produced by transmitting... | |
 | 1871 - 602 pàgines
...electromagnet was employed. 2d. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results ; but the number, position, and color of the lines varies in each ease; the appearances are so different that, by this mode of examination,... | |
 | George Gore - 1878 - 688 pàgines
...Wheatstone examined the spectra of various highly heated metals, and says he ' found the appearances so different, that by this mode of examination the...metals may be readily distinguished from each other.' Angstrom, in 1855, comparing the solar spectrum with that of the electric arc, said : ' Eegarded as... | |
 | George Gore - 1878 - 694 pàgines
...Wheatstone examined the spectra of various highly heated metals, and says he ' found the appearances so different, that by this mode of examination the...metals may be readily distinguished from each other.' Angstrom, in 1855, comparing the solar spectrum with that of the electric arc, said t ' Regarded as... | |
 | Sir Charles Wheatstone - 1879 - 446 pàgines
...electro-magnet was employed. 2. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results ; but the...each other. A table accompanied the paper, showing the position and colour of the lines in the various metals used. The spectra of zinc and cadmium are... | |
 | Sir Charles Wheatstone - 1879 - 454 pàgines
...electro-magnet was employed. 2. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results ; but the...each other. A table accompanied the paper, showing the position and colour of the lines in the various metals used. The spectra of zinc and cadmium are... | |
 | Eneas Sweetland Dallas - 1870 - 532 pàgines
...electro-magnet was employed. znd. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results ; but the number, position, and colour of the lines varies in each case : the appearances are so different that, by this mode of examination,... | |
 | 1835 - 1076 pàgines
...electromagnet was employed. 2. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state, gives similar results; but the number, position, and colours of the lines varies in each case ; the appearances are so different, that, by this mode of examination, the metals... | |
 | 1836 - 460 pàgines
...electro-magnet was employed. 2. The spark taken in the same manner from zinc, cadmium, tin, bismuth, and lead, in the melted state. gives similar results; but the...each other. A table accompanied the paper, showing the position and colour of the lines in the various metals used. The spectra ot zinc and cadmium are... | |
 | 1862 - 670 pàgines
...a violet line." 2. "The spark taken in the same manner, from zinc, cadmium, tin, bismuth, and lead in the melted state, gives similar results ; but the...case. The appearances are so different that by this iñude of examination the metalx may be readily distinguished from each other." A table accompanied... | |
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... in each case; the appearances are so different, that, by this mode of examination, the metals may be readily distinguished from each other. 
