I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium vapour in front of the slit. I then saw the dark lines D change into bright ones. Nature - Page 89edited by - 1873Full view - About this book
| Henry Watts - 1883 - 1160 pages
...the truth of the frequently asserted fact of the coincidence of the sodium-lines with the lines D, I obtained a tolerably bright solar spectrum, and brought a flame coloured by sodium-vapour in front of the slit. I then saw the dark lines D change into bright ones. The flame... | |
| George Frederick Chambers - Astronomical instruments - 1890 - 602 pages
...manner possible the frequently asserted fact of the coincidence of the sodium lines with the D lines, I obtained a tolerably bright solar spectrum, and...then saw the dark lines D change into bright ones. The flame of a Bunsen's lamp threw the bright sodium lines upon the solar spectrum with unexpected... | |
| Robert Routledge - Inventions - 1893 - 732 pages
...manner possible the frequently asserted fact of the coincidence of the sodium lines with trie D lines, I obtained a tolerably bright solar spectrum, and...then saw the dark lines D, change into bright ones. The flame of a Bunsen's lamp threw the bright sodium lines upon the solar spectrum with unexpected... | |
| James Edward Walker - Astronomy - 1894 - 240 pages
...order to test the frequently-asserted fact of the coincidence of the sodium lines with the lines D, he obtained a tolerably bright solar spectrum, and brought...flame, coloured by sodium vapour, in front of the slit.20 He then saw the dark lines change into bright ones. The flame of a Bunsen's lamp threw the... | |
| Robert Routledge - Inventions - 1896 - 780 pages
...manner possible the frequently asserted fact of the coincidence of the sodium lines with the D lines, I obtained a tolerably bright solar spectrum, and...flame coloured by sodium vapour in front of the slit. 1 then saw the dark lines D, change into bright ones. The flame of a Bunsen's lamp threw the bright... | |
| Hector Macpherson - Astronomie - 1926 - 220 pages
...manner possible the frequently asserted fact of the coincidence of the sodium lines with the lines D, I obtained a tolerably bright solar spectrum and brought...then saw the dark lines D change into bright ones. . . . In order to find the extent to which the intensity of the solar spectrum could be increased without... | |
| Astronomical Society of the Pacific - Astronomy - 1927 - 1028 pages
...the truth of the frequently asserted fact of the coincidence of the sodium lines with the lines D, I obtained a tolerably bright solar spectrum, and...then saw the dark lines D change into bright ones. The flame of a Bunsen's lamp threw the bright sodium lines upon the solar spectrum with unexpected... | |
| Harry Fawcett Buckley - Physics - 1927 - 288 pages
...the frequently asserted fact of the coincidence of the sodium lines with the lines D of Fraunhofer, I obtained a tolerably bright solar spectrum, and...in front of the slit. I then saw the dark lines D (of the solar spectrum) change into bright ones. The flame of a Bunsen's lamp threw the bright sodium... | |
| Children's literature - 708 pages
..."the truth of the frequently asserted fact of the coincidence of the sodium lines with the lines D, I obtained a tolerably bright solar spectrum and brought...flame coloured by sodium vapour in front of the slit. / then saw the dark lines D change into bright ones. The flame of a Bunsen's lamp threw the bright... | |
| |