The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 205
... origin at low energies . Extremely interesting solar components are the neutri- nos ( particles that , since they have no mass or charge , can penetrate undisturbed through large amounts of mat- ter ) . As solar energy is provided by ...
... origin at low energies . Extremely interesting solar components are the neutri- nos ( particles that , since they have no mass or charge , can penetrate undisturbed through large amounts of mat- ter ) . As solar energy is provided by ...
Page 938
... origin of cultivated plants , Vavilov investigated the geo- graphical locales of wild ancestors of modern cultivated plants . He called these locales " genecentres " and distin- guished between primary genecentres , regions where the ...
... origin of cultivated plants , Vavilov investigated the geo- graphical locales of wild ancestors of modern cultivated plants . He called these locales " genecentres " and distin- guished between primary genecentres , regions where the ...
Page 939
... origins of domesticated organisms . The rise of cultivated crop plants . Wheat . Cytogenetics helped to establish the origin of wheat , one of the world's most important food crops . Species of wheat differ in the degree of ploidy - i.e ...
... origins of domesticated organisms . The rise of cultivated crop plants . Wheat . Cytogenetics helped to establish the origin of wheat , one of the world's most important food crops . Species of wheat differ in the degree of ploidy - i.e ...
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19th century Africa American animals areas became bee-eaters cells centimetres central centre century Church collagen conifers connective tissue conodonts conservation conservatism constitution continental continental drift copper Coraciiformes coral cosmic rays countries court covenant Cretaceous Crete cricket crime criminal Cro-Magnon crocodiles Crusade cultural deposits disease early Earth economic effect energy England Europe federal forest fossil France French function genera geosynclines groups hoopoes hornbills illus important industrial Iráklion island King known land later Le Corbusier legislation major ment metres minerals modern natural North Nyssaceae occur ocean Ordovician organized original Parliament particles party percent period plants political pollution population problems protection reefs region result River rock Roman Saladin sediments social South Soviet species structure theory tion town trade traditional trees tropical trouvères Union United usually western