A Memoir of Joseph Henry: A Sketch of His Scientific WorkCollins, printer, 1879 - 142 páginas |
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A Memoir of Joseph Henry: A Sketch of His Scientific Work: Second Part William Bower Taylor Vista previa limitada - 2023 |
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Academy action Agricultural Report Albany Academy annual apparatus appears application archæology Association aurora battery circuit coil conductor connected copper copper wire diameter direction discharge discovery distance effect electricity electro-magnetic employed established exhibited experiments extended fact Faraday feet force galvanic current galvanic element galvanometer greater heat helix Henry's horse-shoe important inches increase induction intensity interesting investigations James Smithson Jour knowledge labors lard-oil length Leyden jar Light-house Light-house Board magnet memoirs ment meteorological miles miles per hour Natural Philosophy nature needle observations obtained organic original phenomena Phil Philosophical Society physical plate portion pounds Princeton Review Proceed Proceedings produced Prof Professor Henry published quantity Read Regents remarkable researches ribbon Romeyn Beck scientific shock Silliman's single Smithsonian Institution Smithsonian Report soft iron sonian sound spark station steam Sturgeon's telegraph tion Trans vessel vibrations wind zinc
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Página 282 - That, so soon as the Board of Regents sh'all have selected the said site, they shall cause to be erected a suitable building, of plain and durable materials and structure, without unnecessary ornament, and of sufficient size, and with suitable rooms, or halls, for the reception and arrangement, upon a liberal scale, of objects of natural history, including a geological and mineralogical cabinet; also a chemical laboratory, a library, a gallery of art, and the necessary lecture rooms...
Página 246 - Before having any knowledge of the method given in the above account, I had succeeded in producing electrical effects in the following manner, which differs from that employed by Mr. Faraday, and which appears to me to develop some new and interesting facts. A piece of copper wire, about thirty feet long and covered with elastic varnish, was closely coiled around the middle of the soft iron armature of the galvanic magnet described in Vol.
Página 239 - In a very early stage of electro-magnetic experiments it had been suggested that an instantaneous telegraph might be established by means of conducting wires and compasses. The details of this contrivance are so obvious, and the...
Página 321 - ... between stars in a probably different state of condensation or of specific gravity. A. few years later, he continued his investigation of this subject of radiation, more especially with reference to Rumford's "Observations relative to the means of increasing the quantities of Heat obtained in the Combustion of Fuel :" published in Great Britain in 1802.
Página 227 - The Society for the Promotion of Useful Arts in the State of New York,
Página 237 - In this manner we formed an experimental magnet on a large scale, with which several combinations of wire could be made by merely uniting the different projecting ends. Thus if the second end of the first wire be soldered to the first end of the second wire, and so on through all the series, the whole will form a continued coil of one long wire. By soldering different ends, the whole may be formed into a double coil of half the length, or into a triple coil of one-third the length, &c. The horse-shoe...
Página 233 - And in another later paper, he repeated to the same effect: "After reading an account of the galvanometer of Schweigger, the idea occurred to me that a...
Página 349 - Aspect he rose, and in his rising seemed A pillar of state. Deep on his front [forehead] engraven Deliberation sat and public care, And princely counsel in his face yet shone— Majestic though in ruin ! Sage he stood With Atlantean shoulders fit to bear The weight of mightiest monarchies ; his look Drew audience and attention still as night Or summer's noontide air...
Página 298 - Ephemerides and volumes of Observations, and in other collections not coming under any of the preceding heads. The Catalogue would not comprise separate works. The Catalogue should begin from the year 1800. There should be a Catalogue according to the names of authors, and also a Catalogue according to subjects...
Página 305 - ... positions, to unprovoked attack and injurious misrepresentation. Many instances of this, it may be remembered, occurred about two years ago, during the discussions relative to the organic policy of the Institution ; but, though very unjust, they were suffered to pass unnoticed, and generally made, I presume, no lasting impression on the public mind. During the same controversy, however, there was one attack made upon me of such a nature, so elaborately prepared and widely circulated, by my opponents,...