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Common terms and phrasesaction air-pump angle aperture apparatus appear applied ascertained atmosphere atmospheric pressure attraction ball body cause centre of gravity centrifugal force circumstances colours common compressed concave construction convex convex lens cylinder degree density depend descend described diameter direction distance earth effect elastic electricity equal exhibited experiments Fahrenheit falling feet figure fluid force friction glass glottis heat Hence hydrostatic pressure inches inclined plane influence instrument latter length lens lenses lever light liquid machine magnetic manner mass means mercury metal mirror motion moving Natural Philosophy nature object observed pass peculiar pendulum phenomena philosophers piston plate pole pounds pressure principle produced proportion pyrometer quantity rays reflected refraction relative resistance retina screw side solid sound space specific gravity string substances Suppose surface takes place temperature thermometer tion tones tube valve velocity vertical vessel vibrations voltaic pile weight wheel wire zinc Popular passagesPage 488 - ... eye hath not seen, ear hath not heard, neither hath it entered into the heart of man to conceive. Page 28 - Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it. Page 63 - For since the time of vibration is to the time of descent through half the length of the pendulum, as the circumference of a circle to its diameter... Page 489 - GENERAL VIEW OF THE GEOLOGY OF SCRIPTURE, In which the unerring truth of the Inspired Narrative of the early events in the world is exhibited, and distinctly proved, by the corroborative testimony of physical facts, on every part of the earth's surface. By George Fairholme, Esq. Page 493 - We have great pleasure in directing the attention of our readers to this little work . . . bearing as it does on one of the most important aspects of physiological medicine, as well as on education in the highest sense of the word. Page 429 - ... of the whole quantity of matter in the earth. But the attraction of a quantity of matter at the earth's centre would be more powerful on a body at the bottom of a mine than on one at the top, in the inverse ratio of the squares of the distances... Page 454 - They have subsequently constructed another, which will sustain 2063 pounds. It consists of a bar of soft iron, bent into the form of a horse-shoe, and wound with twenty-six strands of copper bell-wire, covered with cotton threads, each thirty-one feet long; about eighteen inches of the ends are left projecting, so that only, twenty-eight feet of each actually surround the iron. The aggregate length of the coils is therefore 728 feet. Each... Page 503 - THE HOME BOOK OF HEALTH AND MEDICINE, being a popular treatise on the means of Avoiding and Curing Diseases, and of Preserving the Health and Vigour of the Body to the latest period : including a full account of the Diseases of Women and Children. Page 362 - At the extremity of the vast shadow which Etna projects across the island, appeared a perfect and distinct image of the mountain itself, elevated above the horizon, and diminished as if viewed in a concave mirror. Where or what the reflector could be which exhibited this image, I cannot conceive : we could not be mistaken in its appearance, for all our party observed it, and we had been prepared for it beforehand by our Catanian friends. It remained visible about ten minutes, and disappeared as the... Page 439 - Thus, in a battery composed of zinc, diluted sulphuric acid, and copper, the acid acts upon the zinc, and not on the copper. The galvanic fluid proceed, therefore, from the zinc to the acid, from the acid to the copper, &c. Bibliographic information
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