Sound: A Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound : for the Use of Students of Every AgeAppleton, 1878 - 181 páginas |
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Página 16
... standing . There is an instru- ment so named , because it keeps a reflected beam of sunlight constantly pointing in the same direction . In " Light , " the first book of this series , we have given a de- scription of a simple heliostat ...
... standing . There is an instru- ment so named , because it keeps a reflected beam of sunlight constantly pointing in the same direction . In " Light , " the first book of this series , we have given a de- scription of a simple heliostat ...
Página 20
... stand more upright than at New York , and have the position marked " 42 ° 22 ′ , Boston . " Going south , say to New Orleans , we shall see the pole - star shining above the horizon , at a height which is one - fourth less than the ...
... stand more upright than at New York , and have the position marked " 42 ° 22 ′ , Boston . " Going south , say to New Orleans , we shall see the pole - star shining above the horizon , at a height which is one - fourth less than the ...
Página 34
... standing on a platform , and supporting a weight that hangs by a cord . AA is a flat board about 2 feet ( 61 centimetres ) long and 14 inches ( 35.5 centimetres ) wide . B B are two uprights so high that the distance from the under side ...
... standing on a platform , and supporting a weight that hangs by a cord . AA is a flat board about 2 feet ( 61 centimetres ) long and 14 inches ( 35.5 centimetres ) wide . B B are two uprights so high that the distance from the under side ...
Página 35
... standing upright on the platform . Get a lead disk , or bob , 3 inches ( 8 centimetres ) in diameter and inch ( 16 millimetres ) thick . In the centre of this is a hole 1 inch ( 25 millimetres ) in diameter . This disk may easily be ...
... standing upright on the platform . Get a lead disk , or bob , 3 inches ( 8 centimetres ) in diameter and inch ( 16 millimetres ) thick . In the centre of this is a hole 1 inch ( 25 millimetres ) in diameter . This disk may easily be ...
Página 36
... stand for two seconds , and one - half of it may stand for one second , and so on . Thus , we see how time may be recorded in the length of a line . Brush off the heaps of sand at the ends of the line , and bring the left - hand end of ...
... stand for two seconds , and one - half of it may stand for one second , and so on . Thus , we see how time may be recorded in the length of a line . Brush off the heaps of sand at the ends of the line , and bring the left - hand end of ...
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Términos y frases comunes
A-fork ball beats block blow bottle brate cardboard cause centi centimetres centre CHAPTER circle CO-VIBRATION compound sound cone cork curve diameter disk divide dots double pendulum draw drum-skin edge EXPERIMENT fastened feet figure flame funnel gamut give glass tube harmonic harmonic series heliostat holes horizontal inches length loudest ment metres millimetres mirror monic motion mouth move musical musical scale nodal line number of vibrations octave paper periments piece pipe piston pitch plate prongs pull rarefactions reflected relative numbers resonant tube resound rest rotator rubber tube sand screen screw sensation shown in Fig side silica simple sounds sings siren slide slit sonometer sonorous vibrations sonorous waves sound of 66 square string swing tions trace trumpet tumbler tune tuning-fork turn upright velocity of sound vibrate the fork vibrating body vibrating fork vibrations per second whistle wire wooden
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Página 183 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Página 181 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the use of Students of every age.