Sound: A Course of Eight Lectures Delivered at the Royal Institution of Great Britain |
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Page 16
... sound - waves in the direction of the long sloping street , caused the strokes of the bell to be distinctly heard at all times . Ency . Met . art . ' Sound . ' ECHOES . 17 friends were thus made acquainted with secrets 16 LECTURE I.
... sound - waves in the direction of the long sloping street , caused the strokes of the bell to be distinctly heard at all times . Ency . Met . art . ' Sound . ' ECHOES . 17 friends were thus made acquainted with secrets 16 LECTURE I.
Page 22
... direction of motion being at right angles to the face of the wave , the two halves will now encroach upon each other . The convergence of the two halves of the wave is augmented on quitting the lens . For when o ' has reached o " , the ...
... direction of motion being at right angles to the face of the wave , the two halves will now encroach upon each other . The convergence of the two halves of the wave is augmented on quitting the lens . For when o ' has reached o " , the ...
Page 34
... direction , in which direction it would simply have to lift the weight of the atmosphere , Mayer attempted to calculate the precise amount of heat consumed in the raising of * In fact , the prompt abstraction of the motion of heat from ...
... direction , in which direction it would simply have to lift the weight of the atmosphere , Mayer attempted to calculate the precise amount of heat consumed in the raising of * In fact , the prompt abstraction of the motion of heat from ...
Page 40
... directions . But this is not the case when the body , whether unorganised like a crystal , or organised like a tree , possesses a definite structure . This is also true of other things than sound . Subjecting , for example , a sphere of ...
... directions . But this is not the case when the body , whether unorganised like a crystal , or organised like a tree , possesses a definite structure . This is also true of other things than sound . Subjecting , for example , a sphere of ...
Page 41
... directions through wood . It is most freely con- ducted along the fibre ; but across the fibre the power of wood to conduct ... direction a b . The foregoing table strik- ingly illustrates the influence of molecular structure . The great ...
... directions through wood . It is most freely con- ducted along the fibre ; but across the fibre the power of wood to conduct ... direction a b . The foregoing table strik- ingly illustrates the influence of molecular structure . The great ...
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Common terms and phrases
auditory nerve augmentation beats bell carbonic acid cause centre Chladni column of air condensation corresponding Crown 8vo density disc distance divides division Edition elasticity embouchure Eustachian tube experiment flame fork four fundamental tone glass harmonic hear heard heat Helmholtz higher tones human voice hydrogen illustrated inches instrument intensity interval lecture length light liquid membrane ments motion musical sound nodal lines nodes number of vibrations observed obtain octave open pipe organ-pipe orifice oscillate overtones particles pass pitch plate Post 8vo pressure produced prongs puffs pulse rapidity of vibration rarefaction rate of vibration ratio reed reflected rendered resonance resultant tone rotation sonorous wave square stopped pipe stretched string surface syren temperature tion tube tuning-fork tympanic membrane unison vein velocity in air velocity of sound ventral segments vibrating segments vibrating strings voice vols vowel wire Woodcuts
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