 | David Brewster - 1831 - 412 Seiten
...sixth. That man should be able to measure with certainty such minute portions of space and time is not a little wonderful ; for it may be observed, whatever...nothing hypothetical but the names here given them." Colours of the Spectrum. Lengths of an Undulation in parts of an Inch. Number of Undulations in an... | |
 | Denison Olmsted - 1832 - 402 Seiten
...the pale of human thought, our author (perhaps the most competent judge of our times) avers, " that whatever theory of light we adopt, these periods,...nothing hypothetical but the names here given them."] Table showing the correspondence of certain undulations to the several colors of the spectrum. Colors... | |
 | Denison Olmsted - 1835 - 374 Seiten
...the pale of human thought, our author (perhaps the most competent judge of our times) avers, " that whatever theory of light we adopt, these periods,...nothing hypothetical but the names here given them."] Table showing the correspondence of th» undulations to the several colors of the spectrum. Colors... | |
 | Thomas Webster - 1837 - 512 Seiten
...time, or an inch of space, as is exhibited by Herschel in the following table. But we may remark that whatever theory of light we adopt, these periods and...existence, being in fact deduced by Newton from direct measurement, and involving nothing hypothetical but the names here given them. 253. Nature of Light.... | |
 | David Brewster - 1841 - 432 Seiten
...That man should be able to measure with certainty such minute portions of space and time, is not a little wonderful ; for it may be observed, whatever...nothing hypothetical but the names here given them." •Taking the velocity of light at 192,000 miles per second. Colon or the Spectrum. Unglh. of an Indijl.liuii... | |
 | Encyclopaedia - 1845 - 876 Seiten
...That man should be able to measure, with certainty, such minute portions of space and time, is not a little wonderful ; for it may be observed, whatever...nothing hypothetical but the names here given them. The direction of a ray in the undulatory system is a line perpendicular to the surface of the wave... | |
 | David Brewster - 1845 - 436 Seiten
...That man should be able to measure with certainty such minute portions of space and time, is not a little wonderful ; for it may be observed, whatever...measurements, and involving nothing hypothetical but the namea here given them." Colon of tlje Spectrum. Lengths of sn n.ilulalion in partNumber of L' adulations... | |
 | Archibald Tucker Ritchie - 1850 - 642 Seiten
...' That man should be able to measure with certainty such minute portions of space and time is not a little wonderful ; for it may be observed, whatever...nothing hypothetical, but the names here given them." "* We shall follow up these evidences, as to the velocity and the minuteness of the vibrations of light,... | |
 | William Sharp - 1853 - 286 Seiten
...HERSCHELL, " should be able to measure with certainty such minute portions of space and time is not a little wonderful ; for it may be observed, whatever...and involving nothing hypothetical, but the names which have been given them." Whether, therefore, light be viewed as material particles emitted continuously,... | |
 | David Brewster - 1854 - 440 Seiten
...That man should be able to measure with certainty such minute portions of space and time, is not a little wonderful ; for it may be observed, whatever...light we adopt, these periods and these spaces have a rrtd existence, being in fact deduced by Newton from direct measurements, and involving nothing hypothetical... | |
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That man should be able to measure with certainty such minute portions of space and time, is not a little wonderful ; for it may be observed, whatever theory of light we adopt, these periods and these spaces have a real existence, being in fact deduced... 
