The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 252
Organic molecules in space Cosmic rays Evolution of the Galaxy Models of the universe Topogra- phy. The Sun is a quite average star , but it can be studied in great detail and provides an excellent standard to com- pare with other stars ...
Organic molecules in space Cosmic rays Evolution of the Galaxy Models of the universe Topogra- phy. The Sun is a quite average star , but it can be studied in great detail and provides an excellent standard to com- pare with other stars ...
Page 253
... cosmic rays are the relative numbers with different energies ( energy spectrum ) and the chemical composition ( or charge and mass distribu- tion ) . Cosmic rays include some electrons ( and a few positrons ) , and their energy spectrum ...
... cosmic rays are the relative numbers with different energies ( energy spectrum ) and the chemical composition ( or charge and mass distribu- tion ) . Cosmic rays include some electrons ( and a few positrons ) , and their energy spectrum ...
Page 376
... cosmic rays , which consist mainly of very energetic protons ( more than 1,000,000 electron volts ) . THE AURORAL SUBSTORM AND AURORAL STORM If one looked down on the Earth to observe the be- haviour ( or activity ) of the aurora in the ...
... cosmic rays , which consist mainly of very energetic protons ( more than 1,000,000 electron volts ) . THE AURORAL SUBSTORM AND AURORAL STORM If one looked down on the Earth to observe the be- haviour ( or activity ) of the aurora in the ...
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aesthetic ancient appear areas arms artists aschelminths Asia Asian associated atmosphere atoms become body called Central centre century changes China continued countries criticism culture early Earth East economic effect electrons elements energy example exist field forces France function Games groups head human important increase India individual industrial influence Italy Japan known later less light lines living lower major mass means ment metres military mountain nature North objects observations occur organization original painting particular percent period physical Pleistocene political population position possible practice present produced radiation range region relatively remains represent result schools social society sometimes sources South Soviet species stars structure style surface temperature theory tion traditional types United usually various West western