The Encyclopedia Americana, Volume 7Grolier, 1989 - Encyclopedias and dictionaries |
From inside the book
Results 1-3 of 8
Page 365
... comet derives from a Greek word meaning " long - haired , " which is descriptive of the flowing appearance of the tail of a bright E comet . Comets were formerly of interest to astrono- mers principally because of problems connected ...
... comet derives from a Greek word meaning " long - haired , " which is descriptive of the flowing appearance of the tail of a bright E comet . Comets were formerly of interest to astrono- mers principally because of problems connected ...
Page 367
... comets . Many of the observed molecules are composed of atoms of hydrogen , carbon , oxygen , and nitrogen in ... comets as Halley's and Encke's were named in this way . History of Comet Study . Bright comets have been subjects of ...
... comets . Many of the observed molecules are composed of atoms of hydrogen , carbon , oxygen , and nitrogen in ... comets as Halley's and Encke's were named in this way . History of Comet Study . Bright comets have been subjects of ...
Page 368
... Comets thus may follow one of several tracks as they age . The nucleus may gradually disinte grate as ices are lost ... comets were regularly a little early to perihelion ( comet Encke ) or a little late ( comet Halley ) could be and ...
... Comets thus may follow one of several tracks as they age . The nucleus may gradually disinte grate as ices are lost ... comets were regularly a little early to perihelion ( comet Encke ) or a little late ( comet Halley ) could be and ...
Other editions - View all
Common terms and phrases
19th century Africa American Atlantic cod became Bogotá born Britain British church civil Clark Clay Cleisthenes Cleveland climate clocks cloture cloud clubs coal coal tar Coast Guard coeducation coelacanth coffee coinage coins coke College Colombia colonies color Colorado Columbia Columbus comets comic commercial common cold common law Commonwealth COMMONWEALTH OF NATIONS Communist countries courts developed died early East economic elected Empire England English established European example federal France French higher education important India Indian industry institutions Island known land later latitudes major ment meters miles montmorillonite mountain Museum National North Ocean organization party period plants political Population president production programs region River Roman served social South southern Soviet Soviet Union species temperature tion trade treaties Union United University usually West western World World War II York