The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 538
... effects . All of these effects have con- verse effects , but whereas the conversion of heat or light directly to electrical energy in a thermocouple or photo- cell is usually not a practical process for producing elec- tricity , the ...
... effects . All of these effects have con- verse effects , but whereas the conversion of heat or light directly to electrical energy in a thermocouple or photo- cell is usually not a practical process for producing elec- tricity , the ...
Page 560
... effects resulting from simple compression are limited to the polar crystal classes , but piezoelectric effects re- sulting from more general types of strain ( e.g. , shear ) can occur in a much wider class of crystals , those that lack ...
... effects resulting from simple compression are limited to the polar crystal classes , but piezoelectric effects re- sulting from more general types of strain ( e.g. , shear ) can occur in a much wider class of crystals , those that lack ...
Page 764
... effects . By pressing a bar or pedal , a rat can stimulate implanted parts of its own brain . For some brain loci , continuous , enthusiastic pressing is observed and for other locations , systematic avoidance of the pedal is noted ...
... effects . By pressing a bar or pedal , a rat can stimulate implanted parts of its own brain . For some brain loci , continuous , enthusiastic pressing is observed and for other locations , systematic avoidance of the pedal is noted ...
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activity Africa agriculture America became become body called capital caused central centre century changes Christian Church continued core countries cultural demand direction early Earth East Eastern eclipse economic effect established Europe example feet field Figure flow force groups growth important income increase industry internal investment Italy kilometres known labour Lake land later less living magnetic major mantle material means measurements ment metres miles mountains move movement nature North observed occur ocean organization origin Orthodox patriarch percent period planning Pleistocene political population position possible present problems production region relatively remained result rise River rocks social society South species structure surface theory tion trade traditional United West Western