Natural Philosophy, popularly explained, etcCassell, Petter, and Galpin, 1867 - 266 pàgines |
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Altres edicions - Mostra-ho tot
Frases i termes més freqüents
angle Archimedes atmosphere attraction auditory nerve axis bell Boyle's law C₁ C₂ called centre of gravity centrifugal force circle circumference compression constant cord cross section denote diameter direction distance earth elasticity equal and opposite equation equilibrium experiments feet per second fluid force acting force applied force of gravity friction gases given harmonic horizontal hydrometer inches inclined plane inertia interval inversely IRISH SEA latent heat lever light liquid means measured mercury molecular forces molecules moon motion move Nitrous oxide number of vibrations observed octave original particles pendulum perpendicular piston placed plate Power pressure principle produced proportional proved pulley quadrisection radius rays repulsion Resistance river scale-pan screw shown in Fig solid bodies specific gravity spheres square surface temperature triad tube velocity of sound vertical vessel volume weight wheel and axle
Passatges populars
Pàgina 165 - Harp of my Country! in darkness I found thee, •*— ' The cold chain of silence had hung o'er thee long, When proudly, my own Island Harp, I unbound thee, And gave all thy chords to light, freedom, and song ! The warm lay of love and the light note of gladness Have wakened thy fondest, thy liveliest thrill ; But, so oft hast thou echoed the deep sigh of sadness, That even in thy mirth it will steal from thee still.
Pàgina 120 - All the rivers run into the sea; yet the sea is not full; unto the place from whence the rivers come, thither they return again.
Pàgina 97 - ... that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun.
Pàgina 256 - Price 6d. Natural History, Cassell's Popular. Profusely Illustrated with splendid Engravings and Tinted Plates. Complete in Two Volumes, bound in cloth, 30s. Do., Two Volumes, half-calf, full gilt back, 45s. Do., Two Volumes, halfmorocco, full gilt, 50s.
Pàgina 261 - Little Songs for Me to Sing. Illustrated by JE MILLAIS, RA ; with Music composed expressly for the Work by HENRY LESLIE. Square Crown (Dedicated, by express permission, to Her Royal Highness the PRINCESS OF WALES) 6s. The Child's Garland of Little Poems ; Rhymes for Little People. With Exquisite Illustrative Borders by GIACOMELLI.
Pàgina 145 - Wollaston called attention to the sound, or susurrvs, produced by the muscles when in a state of contraction. He states correctly that this sound is best produced by inserting gently the extremity of the finger into the ear, bringing at the same time the muscles of the hand and fore-arm into strong contraction. The...
Pàgina 141 - Trunk Piston types. Plunger steam engine. The internal combustion engine is usually single-acting, so its piston is of the trunk type. A trunk-type piston is one which has the shape of a short cylinder closed at one end, and open at the other. The closed end forms the piston face, in contact with the working medium. The remainder of it is the skirt of the piston, and is provided to align the piston properly in the cylinder, to support the wrist pin, and to provide bearing area on the cylinder wall...
Pàgina 261 - DEDICATED TO THE PRINCESS BEATRICE. The Children's Garden, and What they Made of it. By AGNES and MARIA E. CATLOW. With several Illustrations.
Pàgina 97 - The line joining the planet to the sun sweeps out equal areas in equal times.
Pàgina 262 - MORGAN . . is. The Boat Club. By OLIVER OPTIC. And other Tales ........ is. The Little Peacemaker. By MARY HOWITT . is.