Proceedings of the American Academy of Arts and Sciences, Band 15Metcalf and Company, 1880 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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abacus absolute acheniis air thermometer alcohol ammonia amount apparatus architrave astragal boiling Boston bracteis bromine bulb Calculated calorimeter Cambridge capital capitulis cent Choisy-le-Roi chronograph cm.³ coefficient color column compared comparison constant corolla correction crystals curve determined diameter dimethyluric Egyptian error experiments foliis formula gave Geissler give glass H₂O Hence hydrate hydrochloric acid Ibid ignition inch involucro iodine jacket Joule Kilogramme length Lepsius light longis lotus magnesic chloride mixture magnesic sulphate mixture mean measured mercurial thermometer meters method Mètre mometer N. S. VII Na₂O nearly nitric acid oblongis observations obtained P₂O paper pappo papyrus phosphate phosphoric oxide pier plate platinum plinth precipitate present Professor radiation Regnault salt San Luis Potosi scale SECTION shaft Siemens unit sodic soluble solution specific heat standard stem surface TABLE temperature tion toluol torsion tube tungstate weight yard zero
Beliebte Passagen
Seite 273 - ... the reader is referred to the references at the end of this chapter for further information.
Seite 274 - Pendulum vibrating Seconds of Mean Time in the Latitude of London in a Vacuum at the Level of the Sea...
Seite 19 - So far as I am aware, no attempt has been made to agitate coarse sand.
Seite 306 - Narrative of the Origin and Formation of the International Association for obtaining a Uniform Decimal System of Measures, Weights, and Coins.
Seite 378 - Philadelphia, and after taking his degree in Arts at the University of Pennsylvania, in 1815, he entered his father's counting-room, and was for a time engaged in the East India trade. But he soon found this uncongenial work, and, leaving the office, he again entered the University and took his degree in medicine in 1820. In 1827 he was appointed on the editorial staff of the Philadelphia Journal of the Medical and Physical Sciences, which afterward became the American Journal of Medical Sciences,...
Seite 321 - Beni-Hassan, from which it is most indubitably copied. As a work of art, it fails from excess of strength, a fault common to most of the efforts of a rude people, ignorant of their own resources, and striving, by the expression of physical strength alone, to obtain all the objects of their art.
Seite 347 - I could, and discover the causes of the distemper ; but it is easier to say what it is not, than what it is.
Seite 291 - It was also recognized as a desirable principle, that the bar should be subject to as little strain as possible, and, therefore, that it should be supported at numerous points. Great facility is given to the arrangements for supporting a bar with definite pressures applied at special points, by the use of levers. Thus, if any portion of the bar rest upon two rollers which are placed at the ends of a lever, and if the fulcrum of a lever (whether movable or not) be in its centre, the pressures upwards...
Seite 274 - May one thousand eight hundred and twenty-five, the Straight Line or Distance between the Centres of the Two Points in the Gold Studs in the Straight Brass Rod, now in the Custody of the Clerk of the House of Commons, whereon the Words and Figures
Seite 306 - VATTEMARE. — Letters to Hannibal Hamlin, accompanied by an historical popular Description, in English and French, of the Metrical Decimal System, by WW Mann, and Reports by Mr. Silbermann and by Mr. Durand on the Standard Weights, Measures, and Coins exchanged between the Governments of France and the United Slates. Paris, 1853.