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action amount animal appears Association astronomers become body Born Boston called Cambridge cause Charles chemical College color comet Committee complete condition Conn determined Died direction distance effect electric energy equal experiments fact feet figure force friction George give given glucose heat Henry important inch increase interest James John knowledge known light Louis magnet March Mass matter means measures mechanical meeting metal method minute molecules motion Nashville Nature object observations obtained Ohio organic original passed Permanent Philadelphia plant position present President produced Prof properties question relations Report researches says schools scientific Secretary selenium shown sound stars substance surface temperature Tenn theory tion University Washington wire York
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 xix - Science," for the purpose of receiving, purchasing, holding and conveying real and personal property, which It now is, or hereafter may be possessed of, with nil the powers and privileges, and subject to the restrictions, duties and liabilities set forth in the general laws which now or hereafter may be in force and applicable to such corporations. SECTION 2. Said corporation may have and hold by purchase, grant, gift or otherwise, real estate not exceeding one hundred thousand dollars In value,...
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 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...
Page 93 - Chemistry,' which gave me my foundation in that science. "Do not suppose that I was a very deep thinker, or was marked as a precocious person. I was a lively, imaginative person, and could believe in the 'Arabian Nights' as easily as in the 'Encyclopaedia.
Page xxi - The objects of the Association are, by periodical and migratory meetings, to promote intercourse between those who are cultivating science in different parts of...
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 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 82 - It appears from the May number of the Annals of Philosophy that I have been anticipated in this experiment of drawing sparks from the magnet by Mr. James D. Forbes of Edinburgh, who obtained a spark on the 30th of March; my experiments being made during the last two weeks of June. A simple notification of his result is given, without any account of the experiment, which is reserved for a communication to the Royal Society of Edinburgh; my result is therefore entirely independent of his and was undoubtedly...
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.