The New Physics and Its EvolutionK. Paul, Trench, Trübner, & Company, Limited, 1907 - 344 pagini This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide. |
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Pagina 21
... effected in these fundamental measurements , and to see what precision these improvements have allowed us to attain . § 2. THE MEASURE OF LENGTH To measure a length is to compare it with another length taken as unity . Measurement is ...
... effected in these fundamental measurements , and to see what precision these improvements have allowed us to attain . § 2. THE MEASURE OF LENGTH To measure a length is to compare it with another length taken as unity . Measurement is ...
Pagina 24
... effected at the present time . The Toise du Châtelet , notwithstanding its evident faults , was employed for nearly a hundred years ; in 1766 it was replaced by the Toise du Pérou , so called because it had served for the measurements ...
... effected at the present time . The Toise du Châtelet , notwithstanding its evident faults , was employed for nearly a hundred years ; in 1766 it was replaced by the Toise du Pérou , so called because it had served for the measurements ...
Pagina 28
... effected by optical methods , measurements of the greatest precision , and no doubt further progress may still be made . A day may perhaps come when a material standard will be given up , and it may perhaps even be recognised that such ...
... effected by optical methods , measurements of the greatest precision , and no doubt further progress may still be made . A day may perhaps come when a material standard will be given up , and it may perhaps even be recognised that such ...
Pagina 29
... effected in their day could never be surpassed in precision ; and on the other hand , by borrowing from nature a definite basis , they thought to take from the defini- tion of the unit some of its arbitrary character , and to ensure the ...
... effected in their day could never be surpassed in precision ; and on the other hand , by borrowing from nature a definite basis , they thought to take from the defini- tion of the unit some of its arbitrary character , and to ensure the ...
Pagina 30
... effected in the art of measurement ; they know that geodesical processes , though much improved in our days , have still much to do to attain the precision displayed in the con- struction and determination of standards of the first ...
... effected in the art of measurement ; they know that geodesical processes , though much improved in our days , have still much to do to attain the precision displayed in the con- struction and determination of standards of the first ...
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absolute actinium action analogous appear atom becomes bodies calorific cathode rays charge chemical complete considerable considered constitution contrary Crookes tube discovery dissociated domain Edition effected elastic electric electrified electrolytes electromagnetic electrons endeavoured energy entropy equilibrium ether evolution exist experimental experiments fact fluid gaseous gases give Gustave Le Bon heat Hertz hydrogen hypothesis idea ionisation ions J. J. Thomson kinetic kinetic theory known laws light liquid Lucien Poincaré luminous Madame Curie magnetic field magnitude mass matter measure mechanics medium metals method millimetre molecules movement nature negative obtained optics ordinary osmotic pressure particles particular phenomena phenomenon physicists physics polarized precision pressure principle of Carnot produced Professor Rutherford propagation properties quantity question radiations radioactive radium regard relation remarkable researches scholars seems solid solution spectrum speed substances succeeded suppose telegraphy temperature theory thermodynamics tion transformations tube unit uranium variations velocity vibrations wave-lengths waves
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Pagina 19 - I often say that if you can measure that of which you speak, and can express it by a number, you know something of your subject ; but if you cannot measure it, your knowledge is meagre and unsatisfactory.
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