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 5
... can furnish . The teacher is called on to supply this , and to give it as his share in the work of bringing the teaching of experimen- tal science into our schools . When the teacher has once obtained the mastery over the.
... can furnish . The teacher is called on to supply this , and to give it as his share in the work of bringing the teaching of experimen- tal science into our schools . When the teacher has once obtained the mastery over the.
Página 6
... once obtained the mastery over the experiments he will never after be willing to teach without them ; for , as an honest teacher , he will know that he cannot teach without them . Well - made experiments , the teacher's clear and sim ...
... once obtained the mastery over the experiments he will never after be willing to teach without them ; for , as an honest teacher , he will know that he cannot teach without them . Well - made experiments , the teacher's clear and sim ...
Página 18
... the heavens appears to revolve once in a day . The knowledge of this motion of the sun ena- bles us to construct an instrument with a movable mirror which will reflect his beams in one direction from sunrise 18 SOUND .
... the heavens appears to revolve once in a day . The knowledge of this motion of the sun ena- bles us to construct an instrument with a movable mirror which will reflect his beams in one direction from sunrise 18 SOUND .
Página 35
... cord through the hole at G , to the bob , and fasten it there to the cords . Then get a small bit of copper wire and bend it once round the two cords just above the knot , as at r in the figure NATURE OF VIBRATORY MOTIONS . 35.
... cord through the hole at G , to the bob , and fasten it there to the cords . Then get a small bit of copper wire and bend it once round the two cords just above the knot , as at r in the figure NATURE OF VIBRATORY MOTIONS . 35.
Página 45
... once , it is best to keep the card with the slit still and move the glass over it , and then the audience will see on the screen a white spot on a dark ground , moving with precisely the motion of a pendulum . BLACKBURN'S DOUBLE ...
... once , it is best to keep the card with the slit still and move the glass over it , and then the audience will see on the screen a white spot on a dark ground , moving with precisely the motion of a pendulum . BLACKBURN'S DOUBLE ...
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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.