An Elementary Handbook of PhysicsBlackwood, 1871 - 389 páginas |
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... passage , but at more length , in his ' Notes on Light , ' since published . Excepting figs . 112 and 113 ( for which I am indebted to Mr Browning ) , the drawings are my own , and are all original . W. R. WORKING MEN'S COLLEGE , 91 ...
... passage , but at more length , in his ' Notes on Light , ' since published . Excepting figs . 112 and 113 ( for which I am indebted to Mr Browning ) , the drawings are my own , and are all original . W. R. WORKING MEN'S COLLEGE , 91 ...
Página
... passage , but at more length , in his ' Notes on Light , ' since published . Excepting figs . 112 and 113 ( for which I am indebted to Mr Browning ) , the drawings are my own , and are all original . W. R. WORKING MEN'S COLLEGE , 91 ...
... passage , but at more length , in his ' Notes on Light , ' since published . Excepting figs . 112 and 113 ( for which I am indebted to Mr Browning ) , the drawings are my own , and are all original . W. R. WORKING MEN'S COLLEGE , 91 ...
Página 18
... passage , near one end of which an itinerant band was playing , I heard the sound of the music twice in almost equal power - once when passing the players , again when near the opposite end of the passage . Just at that spot the sound ...
... passage , near one end of which an itinerant band was playing , I heard the sound of the music twice in almost equal power - once when passing the players , again when near the opposite end of the passage . Just at that spot the sound ...
Página 29
... passage of sound - rays through a balloon of carbonic acid is precisely analogous to this . The ray that passes directly through the centre will be retarded most , and those passing through the edges least ; while intermediate rays will ...
... passage of sound - rays through a balloon of carbonic acid is precisely analogous to this . The ray that passes directly through the centre will be retarded most , and those passing through the edges least ; while intermediate rays will ...
Página 34
... BC . That is , the velocity of sound in air is increased by the effects of compression and expan- sion arising from the passage of the sound - wave . In the con- CONSERVATION OF FORCE IN SOUND . 35 densed space A 34 ACOUSTICS .
... BC . That is , the velocity of sound in air is increased by the effects of compression and expan- sion arising from the passage of the sound - wave . In the con- CONSERVATION OF FORCE IN SOUND . 35 densed space A 34 ACOUSTICS .
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absorbed acid action amount of heat angle antimony apparatus arrangement atoms attraction ball battery becomes bismuth body carbon chemical coil colour conducting conductor connection continuous copper current passes decomposed decreases density direction distance earth effect electric current electric force electrified electroscope equal ether excited galvanic galvanometer gases given glass greater hydrogen inches increase latent heat length less Leyden jar light falling light passing liquid magnet magnetised means measure medium mercury metal mirror motion move needle negative nitric acid number of vibrations ordinary oxygen parallel particles passage piece plate platinum polarised pole position prism produce quantity radiation ray of light refraction repulsion result side soft iron solid sound sound-wave spark specific heat spectrum string substance sulphuric acid surface temperature theory thickness tion tricity tube velocity velocity of sound weight whole wire zinc
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Página 54 - ... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged.
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Página 292 - ... before incidence. Hence the reflected rays, on being produced back, will meet at a point as far behind the reflector as the point of the object is in front of it.