A Natural Philosophy: Embracing the Most Recent Discoveries in the Various Branches of Physics, and Exhibiting the Application of Scientific Principles in Every-day Life : Adapted to Use with Or Without Apparatus, and Accompanied with Full Descriptions of Experiments, Practical Exercises, and Numerous Illustrations

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D.Appleton and Company, 1884 - 455 pages
 

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Page 34 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Page 34 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Page 392 - Asteroids are comparatively so diminutive that the force of gravity on their surfaces must be very small. A man placed on one of them would spring with ease 60 feet high, and sustain no greater shock in his descent than he does on the earth from leaping a yard.
Page 377 - Venus a pea, on a circle 284 feet in diameter ; the Earth also a pea, on a circle of 430 feet ; Mars a rather large pin's head, on a circle of 654 feet...
Page 173 - The marine barometer has not yet been in general use for many years, and the author was one of a numerous crew who probably owed their preservation to its almost miraculous warning. It was in a southern latitude. The sun had just set with placid appearance, closing a beautiful afternoon, and the usual mirth of the evening watch was proceeding, when the captain's order came to prepare with all haste for a storm. The barometer had begun to fall with appaling rapidity.
Page 174 - In that awful night, but for the little tube of mercury which had given the warning, neither the strength of the noble ship, nor the skill and energies of the commander, could have saved one man to tell the tale.
Page 36 - A sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within called the centre.
Page 35 - C D. 10. The circumference of every circle is divided into 360 equal parts, called Degrees. One fourth of the circumference contains 90 degrees, and is called a Quadrant. 11. An Angle is the difference in direction of two straight lines that meet or cross each other. 12. The Vertex (plural, vertices) of an angle is the point at which its sides meet; as, D in Fig.
Page 2 - Advanced Course of Composition and Rhetoric A Series of Practical Lessons on the Origin, History, and Peculiarities of the English Language, Punctuation, Taste, the Pleasures of the Imagination, Figures, Style and its essential Properties, Criticism, and the various Departments of Prose and Poetical Composition.
Page 184 - This is shown by placing some hot water under a receiver and exhausting the air. The pressure of the atmosphere being removed from its surface, the water soon boils ; but it comes to rest the moment that air is readmitted. For the same reason, water boils at a lower temperature on the top of a mountain than at its base, as has often been observed by travellers. 442. If beer is placed under a receiver and the air exhausted, it begins to foam. This is owing to the elasticity of the carbonic acid in...

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