The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 76
... measurement of the fundamental unit of charge ( e ) by Robert A. Millikan , a physicist in the United States . From about 1907 to 1917 he carried out his now - famous oil - drop experiment to determine e . In this method , the ...
... measurement of the fundamental unit of charge ( e ) by Robert A. Millikan , a physicist in the United States . From about 1907 to 1917 he carried out his now - famous oil - drop experiment to determine e . In this method , the ...
Page 77
... measured c by reflecting light between a rotating mirror with a number of faces and a fixed mir- ror some 35 kilometres ( 22 miles ) away . A second measurement using essentially the same method but in a 1.6 - kilometre ( one - mile ) ...
... measured c by reflecting light between a rotating mirror with a number of faces and a fixed mir- ror some 35 kilometres ( 22 miles ) away . A second measurement using essentially the same method but in a 1.6 - kilometre ( one - mile ) ...
Page 504
... measurement , interpretation , or assumptions made . Measurement errors can be made in many ways . Most of the daughter isotopes of importance are present in exceedingly small amounts - for example , often at mi- crogram levels - and ...
... measurement , interpretation , or assumptions made . Measurement errors can be made in many ways . Most of the daughter isotopes of importance are present in exceedingly small amounts - for example , often at mi- crogram levels - and ...
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