Elementary Lessons in Heat, Light & Sound |
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Page 20
... centre of the wheel . At the same time the direct expansion of the spoke pushes the rim outwards . These two effects can be made to compensate one another so as to keep the time of oscillation the same in summer as in winter . Fig . 13 ...
... centre of the wheel . At the same time the direct expansion of the spoke pushes the rim outwards . These two effects can be made to compensate one another so as to keep the time of oscillation the same in summer as in winter . Fig . 13 ...
Page 35
... centre contains enough coloured water to fill each limb to a height of a couple of inches . Each limb is connected by a short piece of rubber tubing with a glass tube having a bulb at the end . If one of the bulbs - say the left - hand ...
... centre contains enough coloured water to fill each limb to a height of a couple of inches . Each limb is connected by a short piece of rubber tubing with a glass tube having a bulb at the end . If one of the bulbs - say the left - hand ...
Page 128
... centre disappears , or very nearly So. It reappears as a dark spot if you overshoot the mark . Adjust the position of the candle so that the spot is as nearly as possible invisible on both sides of the disc . When this is the case the ...
... centre disappears , or very nearly So. It reappears as a dark spot if you overshoot the mark . Adjust the position of the candle so that the spot is as nearly as possible invisible on both sides of the disc . When this is the case the ...
Page 129
... centre of its socket . 1 15 Fig . 11 . The measurements required may also be made by using a beam - com- pass ( Fig . 12 ) , or even by holding a graduated scale alongside the apparatus . But it is a great convenience to have some form ...
... centre of its socket . 1 15 Fig . 11 . The measurements required may also be made by using a beam - com- pass ( Fig . 12 ) , or even by holding a graduated scale alongside the apparatus . But it is a great convenience to have some form ...
Page 139
... centre of the semi- circle . The mirror must be adjusted so that it is vertical and faces the o ° mark . Place the arm P so that the end of the slit in it lies exactly over one of the degree marks . Move the arm T until the image of the ...
... centre of the semi- circle . The mirror must be adjusted so that it is vertical and faces the o ° mark . Place the arm P so that the end of the slit in it lies exactly over one of the degree marks . Move the arm T until the image of the ...
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Common terms and phrases
A. W. VERRALL amount of heat angle of incidence Assistant Master beam boiling boiling-point bulb Cambridge candle centimetres CHEMISTRY coefficient coloured concave lens concave mirror condensation convex lens cooling cork distance diverge Edited ELEMENTARY English equal equation expansion experiment EXPT FASNACHT Fcap flame flask focal length front G. E. FASNACHT Geometrical grammes GREEK HISTORY Illustrated image is formed inches incident ray increases interval ISAAC TODHUNTER J. P. MAHAFFY latent heat lenses liquid LL.D M.A. Cr Mathematics melt mercury observer Owens College paper passes placed position pressure principal axis principal focus prism produced Prof Professor pulse radiation rarefaction ray of light real image reflected refracted ray revised School screen shown in Fig side sound source of light specific heat steam string surface temperature thermometer Translated TREATISE Trinity College University velocity vibration vibration-number volume water-vapour wire
Popular passages
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