Annual Report of the Board of Regents of the Smithsonian InstitutionThe Institution, 1914 |
З цієї книги
Результати 1-3 із 84
Сторінка 176
... light and the slit of the spectroscope , a great number of absorption lines will be found at the corresponding places . Also in the spectra of the sun and of many of the stars there occur dark lines corresponding exactly in place to the ...
... light and the slit of the spectroscope , a great number of absorption lines will be found at the corresponding places . Also in the spectra of the sun and of many of the stars there occur dark lines corresponding exactly in place to the ...
Сторінка 183
... light - years . The stellar distances are considered up to such enormous quantities as a thousand or more light - years . It is also customary to speak of the parallaxes of stars . By this is meant the angle which the radius of the ...
... light - years . The stellar distances are considered up to such enormous quantities as a thousand or more light - years . It is also customary to speak of the parallaxes of stars . By this is meant the angle which the radius of the ...
Сторінка 736
... light partly penetrates them , certain rays being then reflected and certain absorbed according to the hue . A blue pigment , for example , absorbs all constituent rays of white light except the blue and the hues which border on blue in ...
... light partly penetrates them , certain rays being then reflected and certain absorbed according to the hue . A blue pigment , for example , absorbs all constituent rays of white light except the blue and the hues which border on blue in ...
Зміст
The Smithsonian Institution | 1 |
National Museum | 26 |
Astrophysical Observatory | 32 |
37 інших розділів не відображаються
Інші видання - Показати все
Загальні терміни та фрази
abalone acid Aleš Hrdlička American animals appear birds black abalone boiler bones building bureau carried cent coal collection color combustion deposits diameter direction earth effect electric electrons energy existence fact feet film France furnace gases heat hues human important increase interest June June 30 Kilauea Krapina LA CHAPELLE-AUX-SAINTS laboratory land lava less lines magnetic field material method Minoan motion Mousterian Mycenae Mycenaean National Museum nature Neanderthal nitrogen observations Observatory obtained period Pithecanthropus erectus plants PLATE precipitation present Prof proper motion Publ publications radiation recent region remains represent River scientific Secretary Shintoism skeleton skull SMELTER Smithsonian Institution Smithsonian Report solar South species specimens stars steam sun spots surface temperature theory thickness tion tons tubes turbine United van't Hoff velocity Washington waves whales wire