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 20
... holds the mirror 0 . Each morning in the year the sun appears on the hori- zon at a different point on the celestial sphere , so that on different days we have to give the mirror N a different tilt toward the sun . At the equinoxes ...
... holds the mirror 0 . Each morning in the year the sun appears on the hori- zon at a different point on the celestial sphere , so that on different days we have to give the mirror N a different tilt toward the sun . At the equinoxes ...
Página 30
... Hold the end of the wire in the left hand , and with the right hand draw the ball to one side . Let it go , and it will swing backward and forward like the pendulum of a clock . This kind of movement we call a pendulous or transverse ...
... Hold the end of the wire in the left hand , and with the right hand draw the ball to one side . Let it go , and it will swing backward and forward like the pendulum of a clock . This kind of movement we call a pendulous or transverse ...
Página 31
... Hold the end of the elastic in one hand , and with the other pull the ball gently downward , then let it go . It vibrates up and down in the direction of the length of the elastic . Hence we call this kind of motion a longitudinal ...
... Hold the end of the elastic in one hand , and with the other pull the ball gently downward , then let it go . It vibrates up and down in the direction of the length of the elastic . Hence we call this kind of motion a longitudinal ...
Página 47
... hold a lighted match under the thread . The thread will burn , and the bob will start off on its journey . Now , in place of swinging in a straight line , it follows a curve , and the sand traces this figure over and over . FIG . 13 ...
... hold a lighted match under the thread . The thread will burn , and the bob will start off on its journey . Now , in place of swinging in a straight line , it follows a curve , and the sand traces this figure over and over . FIG . 13 ...
Página 50
... the painter's a small quantity of French varnish , or clear spirit - varnish . Hold one of these pieces of glass level in the left hand by one corner , and , with the right , pour some of the varnish upon the glass . Let the 50 SOUND .
... the painter's a small quantity of French varnish , or clear spirit - varnish . Hold one of these pieces of glass level in the left hand by one corner , and , with the right , pour some of the varnish upon the glass . Let the 50 SOUND .
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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 181 - SOUND : a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the use of Students of every age.