The New Encyclopaedia Britannica, Volumes 1-10Encyclopaedia Britannica, 1974 - Reference [1] Propaedia: outline of knowledge and guide to the Britannica.--[2]-[11] Micropaedia: ready reference and index.--[12]-[30] Macropaedia: knowledge in depth. |
From inside the book
Results 1-3 of 35
Page 234
... wavelengths that are absorbed under other conditions . Perhaps the purest natural example of such radiance at discrete wavelengths ( bright lines ) is the aurora borealis , the northern lights produced in the up- per atmosphere by fast ...
... wavelengths that are absorbed under other conditions . Perhaps the purest natural example of such radiance at discrete wavelengths ( bright lines ) is the aurora borealis , the northern lights produced in the up- per atmosphere by fast ...
Page 237
... wavelengths ; the Fabry - Perót inter- ferometer is most useful for detailed exploration of a single line for profiles or Doppler shifts . For the infrared above 10,000 - angstroms wavelength , an old device , the Michelson ...
... wavelengths ; the Fabry - Perót inter- ferometer is most useful for detailed exploration of a single line for profiles or Doppler shifts . For the infrared above 10,000 - angstroms wavelength , an old device , the Michelson ...
Page 247
... wavelengths much longer than those of visible light . Better resolution can be provided by interferom- eters . In an interferometer two or more often widely separated apertures are used together ; this arrangement can give the effect of ...
... wavelengths much longer than those of visible light . Better resolution can be provided by interferom- eters . In an interferometer two or more often widely separated apertures are used together ; this arrangement can give the effect of ...
Other editions - View all
The New Encyclopaedia Britannica, Volumes 1-10 Encyclopaedia Britannica Publishers, Inc. Staff No preview available - 1974 |
Common terms and phrases
19th century aesthetic ancient areas armour army arthropods artiodactyls artists aschelminths Asia Asian Assam Asterales astronomical atheism Athens atheriniforms Atlantic atmosphere atoms Basin beryciforms Cenozoic Central centre China climate countries criticism culture early Earth East economic effect electrons elements energy exosphere Finland forces forest fossil France function galaxies Games gases gastrotrichs German Greek groups Gt.Brit heterosphere Hittite homosphere hydrogen important increase India Indonesia industrial Italy Japan kilometres layer lines literature mass ment metres miles military modern molecules mountain North occur Ocean Olympic orbit organization original oxygen painting particles percent period planets Pleistocene political population priapulids produced radiation radio range region religion result rotifers Siberia social society solar South Southeast Southeast Asia southern Soviet species spectra spectrum stars structure style surface Sweden temperature theory tion tradition ture types usually wavelengths western zone