Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art, for -71, Exhibiting the Most Important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Geology, Biology, Botany, Mineralogy, Meteorology, Geography, Antiquities, Etc., Together with Notes on the Progress of Science ... a List of Recent Scientific Publications; Obituaries of Eminent Scientific Men, Etc. ...
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421 페이지 - Book of Facts in Science and Art, exhibiting the most important Discoveries and Improvements in Mechanics, Useful Arts, Natural Philosophy, Chemistry, Astronomy, Meteorology, Zoology, Botany, Mineralogy, Geology, Geography, Antiquities, etc.
ix 페이지 - I first entered this city, the whole of the machinery was executed by hand. There were neither planing, slotting, nor shaping machines, and, with the exception of very imperfect lathes and a few drills, the preparatory operations of construction were effected entirely by the hands of the workmen.
152 페이지 - The result of this would be a state of universal rest and death, if the universe were finite and left to obey existing laws. But as no limit is known to the extent of matter, science points rather to an endless progress through an endless space of action, involving the transformation of potential energy through palpable motion into heat, than to a single finite mechanism, running down like a clock and stopping forever.
xii 페이지 - THE BOYDEN PREMIUM URIAH A. BOYDEN, ESQ., of Boston, Mass., has deposited with THE FRANKLIN INSTITUTE the sum of one thousand dollars, to be awarded as a premium to "Any resident of North America who shall determine by experiment whether all rays of light,* and other physical rays, are or are not transmitted with the same velocity.
66 페이지 - ... the glasses are taken off and wiped every day, and before they are put on again, the match is applied to the lip of the burner, and the stopcock cautiously opened, so that no more gas escapes than is sufficient to make a ring of blue flame, the glasses being then put on quite straight, the stopcocks are gently turned, until the flames stand at three inches high. When this is done, few chimney-glasses will be broken, and the ceilings will not be blackened for years.
203 페이지 - Energia. It may be looked upon as the probable primary source of the force appearing in the phenomena of vitality. To the gradual manner in which colloidal changes take place (for they always demand time as an element), may the...
419 페이지 - POLITICAL ECONOMY ABRIDGED, and adapted to the use of Schools and Academies, by the Author.
420 페이지 - HEADSHIP OF CHRIST, and the Rights of the Christian People, a Collection of Personal Portraitures, Historical and Descriptive Sketches and Essays, with the Author's celebrated Letter to Lord Brougham.
203 페이지 - Another eminently characteristic quality of colloids, is their mutability. Their existence is a continued metastasis. A colloid may be compared in this respect to water while existing liquid at a temperature below its usual freezing point, or to a supersaturated saline solution.