The Art of Scientific Discovery: Or, The General Conditions and Methods of Research in Physics and ChemistryLongmans, Green, and Company, 1878 - 648 páginas |
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Página 18
... equal to the same are equal to each other . There can be no square root to a negative quan- tity . A figure which possesses three equal sides must have three equal angles . A substance cannot be and not . be at the same time in the same ...
... equal to the same are equal to each other . There can be no square root to a negative quan- tity . A figure which possesses three equal sides must have three equal angles . A substance cannot be and not . be at the same time in the same ...
Página 20
... equal in strength to that supplied by ordinary experiments in those sciences . Faraday , a devout man , was a firm believer in this doctrine of Conservation of Energy and of Matter . The minds of many men are ever restless , and man's ...
... equal in strength to that supplied by ordinary experiments in those sciences . Faraday , a devout man , was a firm believer in this doctrine of Conservation of Energy and of Matter . The minds of many men are ever restless , and man's ...
Página 24
... equal masses of matter , the proportion- ate strength has been estimated to be a mere fraction of 1 to 1,000 millions.1 The extremely limited extent of our faculties also keeps us in ignorance of many things . There is good reason for 1 ...
... equal masses of matter , the proportion- ate strength has been estimated to be a mere fraction of 1 to 1,000 millions.1 The extremely limited extent of our faculties also keeps us in ignorance of many things . There is good reason for 1 ...
Página 29
... space is not infinite is equal to affirming that there is a place where space does not exist . Geological considerations and J 阴 1 the phenomena of ancient eclipses carry us back towards periods THE IMMENSITY AND COMPLEXITY OF NATURE.
... space is not infinite is equal to affirming that there is a place where space does not exist . Geological considerations and J 阴 1 the phenomena of ancient eclipses carry us back towards periods THE IMMENSITY AND COMPLEXITY OF NATURE.
Página 42
... equal in brightness to the image of the sun itself , nor is that of a mountain propor- tioned in size to the mountain . For every important existence , real or imaginary , a representative idea is usually sooner or later discovered . 6 ...
... equal in brightness to the image of the sun itself , nor is that of a mountain propor- tioned in size to the mountain . For every important existence , real or imaginary , a representative idea is usually sooner or later discovered . 6 ...
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Términos y frases comunes
¹ Whewell acid action appear astronomical beliefs bodies Caroline Herschel cause chemical chemical affinity chemistry circumstances classification complete conclusions covery Crown 8vo degree detect discovered DISCOVERY BY MEANS earth effect electric electric current elementary bodies employed enabled error evidence excite existence experiments extensive facts false Faraday forces G. C. Lewis galvanometer heat History of Chemistry hydrogen hypotheses ideas important impressions Inductive Sciences inference instance intellect invention kind known labour large number laws less Leyden jar light magnetism matter ment mental method mind motion nature Newton nitric acid observation obtained original research oxygen perceive perception persons pheno phenomena phenomenon phlogiston physical possess probably produce properties proposition proved qualitative quantitative R. W. Dale reason requires Royal Society rubidium scientific discovery scientific research scientific truths senses similar statement substances temperature thallium theory things thought tion tricity true usually various voltaic whilst
Pasajes populares
Página 372 - One science only will one genius fit ; So vast is art, so narrow human wit : Not only bounded to peculiar arts, But oft in those confined to single parts.
Página 600 - Avogadro's law states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules...
Página 275 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Página 96 - I think it may not be amiss to take notice, that however faith be opposed to reason, faith is nothing but a firm assent of the mind : which if it be regulated, as is our duty, cannot be afforded to any thing but upon good reason ; and so cannot be opposite to it. He that believes, without having any reason for believing, may be in love with his own fancies; but neither seeks truth as he ought, nor pays the obedience due to his Maker...
Página 293 - It is a pleasure to stand upon the shore and to see ships tossed upon the sea; a pleasure to stand in the window of a castle and to see a battle and the adventures thereof below; but no pleasure is comparable to the standing upon the vantage ground of truth...
Página 649 - Price 3$. 6d. On the STRENGTH of MATERIALS and STRUCTURES : the Strength of Materials as depending on their quality and as ascertained by Testing Apparatus ; the Strength of Structures, as depending on their form and arrangement, and on the materials of which they are composed. By Sir J. ANDERSON, CE &c.