Natural Philosophy: For High Schools and Academies |
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Natural Philosophy: For High Schools and Academies William James Rolfe,Joseph Anthony Gillet No preview available - 2015 |
Common terms and phrases
absorb acting allowed angle appear atmosphere ball beats becomes body called cause centre colors combination connected dark direction distance earth effect electric equal experiment fact fall feet Figure flame focus force fork give glass gravity greater heard heat Hence inches increases intensity iron length lens less light lines liquid luminous magnet means medium meet mercury mirror molecules motion move musical sound object obscure opposite ordinary particles passing piece pipe pitch placed plane plate polarized pole portion position pound pressure prism produced radiations raised rapidity rays receiver reflected refracted rest resultant rings rise round screen seen shown in Figure shows side solid sound space spectrum string substances surface temperature tone transmitted tube turn velocity vibrations waves weight wheel wire
Popular passages
Page 28 - ... that it is the pressure of the atmosphere on the surface of the water in the dish which keeps the water in the inverted jar.
Page 209 - Through the high wood echoing shrill; Sometime walking, not unseen, By hedge-row elms, on hillocks green, Right against the eastern gate Where the great Sun begins his state Robed in flames and amber light, The clouds in thousand liveries dight...
Page 18 - This result gives the weight of a bulk of water equal to that of the specimen, and by dividing the weight of the specimen in air by this number, the specific gravity is obtained.
Page 220 - Her ivory forehead full of bounty brave, Like a broad table did itself dispread, For Love his lofty triumphs to engrave, ' And write the battles of his great godhead : All good and honour might therein be read; For there their dwelling was.
Page 214 - ... seems to be secured, so that for ourselves and for long generations after us we have nothing to fear. But the same forces of air and water, and of the volcanic interior, which produced former geological revolutions, and buried one series of living forms after another, act still upon the earth's crust. They more probably will bring about the last day of the human race than those distant cosmical alterations of which we have spoken...
Page 218 - I observed that the flame of the last-mentioned burner exhibited pulsations in height which were exactly synchronous with the audible beats. This phenomenon was very striking to every one in the room, and especially so when the strong notes of the violoncello came in. It was exceedingly interesting to observe how perfectly even the trills of this instrument were reflected on the sheet of flame. A deaf man might have seen the harmony.
Page 16 - There are various ways of agitating the air at the ends of pipes and tubes, so as to throw the columns within them into vibration. In organ-pipes this is done by blowing a thin sheet of air against a sharp edge. This produces a flutter, some particular pulse of which is then converted into a musical sound by the resonance of the associated column of air.
Page 209 - It remains for a short time when formed in the lower parts of the atmosphere and near other clouds, and longest when alone in the sky, and at a great height. When streaks of cirrus run quite across the sky in the direction in which a light wind happens to blow, the wind will probably...
Page 214 - ... bloomed, and dropped its costly gum on the earth and in the sea ; when in Siberia, Europe, and North America groves of tropical palms flourished ; where gigantic lizards, and after them elephants, whose mighty remains we still find buried in the earth, found a home? Different geologists, proceeding from different premises, have sought to estimate the duration of the above-named...
Page 89 - This point will therefore appear to be just as far behind the mirror as A is in front of it.