The Great Ideas TodayRobert Maynard Hutchins, Mortimer Jerome Adler Encyclopædia Britannica, 1963 |
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Стр. 335
... light radar , " wherein echoes are received back from some distant object and used to ascertain its position , motion , etc. Light echoes from a pulsed ruby optical maser have , in fact , been received back from the Moon . For such ...
... light radar , " wherein echoes are received back from some distant object and used to ascertain its position , motion , etc. Light echoes from a pulsed ruby optical maser have , in fact , been received back from the Moon . For such ...
Стр. 344
... light , that form of energy which stimulates visual sensation , affects photographic plates , and enables plants to grow . Isaac Newton ( 1642-1727 ) is usually said to have favored the view that light is a stream of corpuscles , while ...
... light , that form of energy which stimulates visual sensation , affects photographic plates , and enables plants to grow . Isaac Newton ( 1642-1727 ) is usually said to have favored the view that light is a stream of corpuscles , while ...
Стр. 347
... light were explained by Albert Einstein ( 1879-1955 ) in 1905 on the supposition that when an atom emits or absorbs light of wave number σ waves / cm , it always emits or absorbs a definite amount of energy , later called one photon ...
... light were explained by Albert Einstein ( 1879-1955 ) in 1905 on the supposition that when an atom emits or absorbs light of wave number σ waves / cm , it always emits or absorbs a definite amount of energy , later called one photon ...
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Adam Smith American analysis animal appear Aristotle Aschenbach atoms Australopithecine beauty century conquest of space critical culture Death in Venice drug earth effect electrons essay evil existence existentialist experience fact Godwin graft human ideas increase individual kidney kind knowledge labor land language laws light live man's mankind maser means of subsistence ment million mind modern Moon moral nations nature observed ontology optical maser orbit Paul Tillich perhaps period philosophical phocomelia physical planets political population possible present probably problems produce progress question reason religion revolution rocket satellite scientific scientists seems sense social society solar solar wind space exploration spacecraft species stature Syntopicon Tadzio thalidomide theory things thought tion tradition truth University Venus Villafranchian wave Western World writers York Zinjanthropus