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 ...

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Appleton, 1862 - Physics - 450 pages

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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 34 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Page 238 - ... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged.
Page 279 - Vibrations striking a plane surface are reflected from it (like light and heat) in such a way as to make the angle of reflection equal to the angle of incidence. 733. Echoes. — When a sound is heard a second time by reflection, after a certain interval, an Echo is said to be produced. A sound is sometimes repeated more...
Page 94 - Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Page 174 - In that awful night, but for the little tube of mercury which had given 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 449 - Unquestionably the very best Dictionary of our language extant. Its great accuracy in the definition and derivation of " — ' words, gives it an authority that no other work on the subject possesses. It is constantly cited and relied on in our Courts of Justice, in our legislative bedies, and in public discussions, as entirely conclusive.
Page 173 - ... came to prepare with all haste for a storm. The barometer had begun to fall with appalling rapidity. As yet, the oldest sailors had not perceived even a threatening in the sky, and were surprised at the extent and hurry of the preparations: but the required measures were not completed, when a more awful hurricane burst upon them than the most experienced had ever braved.
Page 173 - 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 appalling rapidity. As yet, the oldest sailors...

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