The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
From inside the book
Results 1-3 of 84
Page 121
... produced depend on the temperature and density at which helium is burned . Carbon and oxygen burning . At temperatures between 5 X 1080 K and 109 ° K , pairs of carbon and oxygen nu- clei can fuse to produce such elements as magnesium ...
... produced depend on the temperature and density at which helium is burned . Carbon and oxygen burning . At temperatures between 5 X 1080 K and 109 ° K , pairs of carbon and oxygen nu- clei can fuse to produce such elements as magnesium ...
Page 122
... produced in stars in the galactic lifetime . The second reason for interest in the big - bang theory is the discovery that very short radio waves , microwaves , are observed to be reaching the Earth from all directions in space ...
... produced in stars in the galactic lifetime . The second reason for interest in the big - bang theory is the discovery that very short radio waves , microwaves , are observed to be reaching the Earth from all directions in space ...
Page 131
... produced either together with acetylene or with propylene . It gives rise to a large number of products , many in large volume . Some of the more im- portant have been lumped together in a box ( Figure 2 ) : acetaldehyde , acrylonitrile ...
... produced either together with acetylene or with propylene . It gives rise to a large number of products , many in large volume . Some of the more im- portant have been lumped together in a box ( Figure 2 ) : acetaldehyde , acrylonitrile ...
Other editions - View all
Common terms and phrases
acid activity addition administration appear atoms became become bonds called carbon cause central centre century charge Charles chemical chemistry Chess China Chinese combined common complete compounds containing continued cultural drugs early economic effect electrons elements energy established example Figure forces four give given groups hydrogen important increased industry involved ions Italy king known land later less literature living major mass materials ment metal methods molecular molecules move natural occur officials orbitals organic original party percent period play political population position possible present properties provinces reaction region remained represented result river rule separation social species structure substances successful temperature tion types United usually various