 | Sir Norman Lockyer - 1871 - 662 Seiten
...double bright line D. 3. That when vapour of sodium is at a high enough temperature to become it-elf a source of light, each atom executes these two fundamental...light from another source is propagated, its atoms, accoiding to a well-known general principle of dynamics, are set to vibr, te in either or bo h of those... | |
 | 1871 - 1024 Seiten
...the two slightly different yellow lights constituting the double bright line D. (3) That when vapor of sodium is at a high enough temperature to become...constituting the double bright line D. (4) That when vapor of sodium is present in space across which light from another source is propagated, its atoms,... | |
 | Sir Norman Lockyer - 1871 - 540 Seiten
...sodium is at a high enough temperature to become itself a source of light, each atom executes ibese two fundamental vibrations simultaneously ; and that...light from another source is propagated, its atoms, accoiding to a well-known geneial principle of dynamics, are«! Io vibr te in either or bo h of those... | |
 | Sir Norman Lockyer - 1871 - 546 Seiten
...when vapour of sodium is at a high enough temperature to become itself a source of light, each aiom executes these two fundamental vibrations simultaneously...that therefore the light proceeding from it is of the tsvo qualities constituting the double bright line D. 4 That when vapour of sodium is present in space... | |
 | Elkanah Billings, Bernard James Harrington, James Thomas Donald - 1872 - 534 Seiten
...instrument with two strings tuned to approximate unison, or an approximately circular elastic disc, it has two fundamental notes or vibrations of approximately...(4) That when vapour of sodium is present in space acrosr which light from another source is propagated, its atoms, according to a well-known general... | |
 | 1872 - 520 Seiten
...the periods of the two slightly different yellow lights constituting the double bright line D. i3) That when vapour of sodium is at a high enough temperature...atoms, according to a well-known general principle of dynamies, are set to vibrate in either or both of those fundamental modes, if some of the incident... | |
 | British Association for the Advancement of Science - 1872 - 716 Seiten
...when vapour of sodium is at a high enough temperature to become itself a source of light, each ntom executes these two fundamental vibrations simultaneously...of the two qualities constituting the double bright lino 1). (5) That i'raunhofer's double dark line D of solar and stellar spectra is due to the presence... | |
 | Sir Norman Lockyer - 1874 - 726 Seiten
...instrument with two strings tuned to approximate unison, or an approximately circular elastic disc, it has two fundamental notes or vibrations of approximately...two qualities constituting the double bright line D. other ; so that the energy of the waves of those particular CHAI-.XII. qualities of light is converted... | |
 | Elkanah Billings, Bernard James Harrington, James Thomas Donald - 1872 - 518 Seiten
...approximately circular elastic dise, it has two fundamental notes or vibrations of approximately equal piteh ; and that the periods of these vibrations are precisely...atoms, according to a well-known general principle of dynamies, are set to vibrate in either or both of those fundamental modes, if some of the incident... | |
 | Sir Norman Lockyer - 1887 - 488 Seiten
...instrument with two strings tuned to approximate unison, or an approximately circular elastic disc, it has two fundamental notes or vibrations of approximately...is propagated, its atoms, according to a well-known principle of dynamics, are set to vibrate in either or both of these fundamental modes, if some of... | |
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... it has two fundamental notes or vibrations of approximately equal pitch ; and that the periods of these vibrations are precisely the periods of the two slightly different yellow lights constituting the double bright line D. (3) That when vapour of... 