Proceedings of the American Association for the Advancement of Science, Volume 29 |
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Page iv
... Substances . By WILLIAM A. NORTON . Illustrated On the Force of Effective Molecular Action ; and the Mechanical Properties and Laws dependent on it . Abstract . By WILLIAM A. NORTON On a Simple Device for Projecting Vibrations of a ...
... Substances . By WILLIAM A. NORTON . Illustrated On the Force of Effective Molecular Action ; and the Mechanical Properties and Laws dependent on it . Abstract . By WILLIAM A. NORTON On a Simple Device for Projecting Vibrations of a ...
Page 3
... mechanical work of an engine is measured by the loss of its heat and not of its substance . So the mechanical or intellectual work of a living being is measured by the amount of carbon rather than the amount of PRESIDENT BARKER . 3.
... mechanical work of an engine is measured by the loss of its heat and not of its substance . So the mechanical or intellectual work of a living being is measured by the amount of carbon rather than the amount of PRESIDENT BARKER . 3.
Page 6
... substances of which the tissue is built up ; the maintenance of this charge being effected by chemical changes going on constantly in the substance of the muscle , by which the carbon dioxide is produced , which is shown to be a measure ...
... substances of which the tissue is built up ; the maintenance of this charge being effected by chemical changes going on constantly in the substance of the muscle , by which the carbon dioxide is produced , which is shown to be a measure ...
Page 8
... substance , discovered by Liebreich 42 and called protagon , the specific characters of which have lately been confirmed by Gamgee.43 In function , the nerve- cell and the nerve fibre are occupied solely in the production , the ...
... substance , discovered by Liebreich 42 and called protagon , the specific characters of which have lately been confirmed by Gamgee.43 In function , the nerve- cell and the nerve fibre are occupied solely in the production , the ...
Page 10
... substance itself , contained in the nerve- tubes , spreading along the tubes both ways from any point where the equilibrium has been disturbed . " And Spencer has advanced the view that " a nervous disturbance travels as a wave of ...
... substance itself , contained in the nerve- tubes , spreading along the tubes both ways from any point where the equilibrium has been disturbed . " And Spencer has advanced the view that " a nervous disturbance travels as a wave of ...
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Common terms and phrases
acid action Albany Alexis Caswell apparatus Association astronomers ATURE B. A. Gould battery beam binary stars Born Boston Cambridge cell Charles Chem chemical Cincinnati COEFF College color comet Conn determination Died discovery disk distance effect electric empty pipette energy ether experiments F. W. Putnam forest FRIC friction George Haven heat Henry Henry's inch instrument Iowa James John light liquid Louis magnet Mass measures mechanical metal method molecular molecules motion muscle Nashville O. C. Marsh observations Observatory Ohio P. O. Box Permanent Secretary PERMANENT SUBSECTION phenomena Philadelphia plant plate President produced Prof protoplasm required to empty researches Saratoga Springs schools scientific Seconds required sections selenium Spindle Standing Committee stars substance surface tellurium TEMPER temperature Tenn theory tion Univ Washington William wire Yale College York
Popular passages
Page 92 - Concerning each of which, many seem to have fallen into very great errors ; for by invention, I believe, is generally understood a creative faculty, which would indeed prove most romance writers to have the highest pretensions to it ; whereas by invention is...
Page 80 - ... which certainly form a new era in the history of electricity and magnetism, should not have been more fully described before this time in some of the English publications; the only mention I have found of them is the following short account from the Annals of Philosophy for April, under the head of Proceedings of the Royal Institution :
Page 131 - A large number of trials of this apparatus have been made with the transmitting and receiving instruments so far apart that sounds could not be heard directly through the air. In illustration, I shall describe one of the most recent of these experiments. Mr. Tainter operated the transmitting instrument, which was placed on the top of the Franklin School House in Washington, DC, and the sensitive receiver was arranged in one of the Fio.
Page 73 - Around this horse-shoe 540 feet of copper bell-wire were wound in nine coils of 60 feet each ; these coils were not continued around the whole length of the bar, but each strand of wire (according to the principle before mentioned) occupied about two inches, and was coiled several times backward and forward over itself. The several ends of the wires...
Page 92 - By genius I would understand that power, or rather those powers of the mind, which are capable of penetrating into all things within our reach and knowledge, and of distinguishing their essential differences.
Page 131 - Mr. Bell, if you hear what I say, come to the window and wave your hat.
Page 93 - But facts were important to me, and saved me. I could trust a fact, and always cross-examined an assertion. So when I questioned Mrs. Marcet's book by such little experiments as I could find means to perform, and found it true to the facts as I could understand them, I felt that I had got hold of an anchor in chemical knowledge, and clung fast to it.
Page 122 - ... telephone from one place to another without the necessity of a conducting wire between the transmitter and receiver. It was evidently necessary, in order to reduce this idea to practice, to devise an apparatus to be operated by the voice of a speaker, by which variations could be produced in a parallel beam of light, corresponding to the variations in the air produced by the voice.
Page 78 - Kritik, Ohm's theory was named a web of naked fancies, which can never find the semblance of support from even the most superficial observation of facts ; ' he who looks on the world/ proceeds the writer, ' with the eye of reverence must turn aside from this book as the result of an incurable delusion, whose sole effort is to detract from the dignity of nature.
Page 118 - To ensure that temperature was in no way affecting the experiments, one of the bars was placed in a trough of water so that there was about an inch of water for the light to pass through, but the results were the same ; and when a strong light from the ignition of a narrow band of magnesium was held about nine inches above the water the resistance immediately fell more than two-thirds, returning to its normal condition immediately the light was extinguished.