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Page 6
... shown by taking hold of the end of a long vulcanized india rubber tube filled with sand , and having attached one end to the ceiling or other con- venient place , it is easy by a jerk to produce the appearance of a wave , which travels ...
... shown by taking hold of the end of a long vulcanized india rubber tube filled with sand , and having attached one end to the ceiling or other con- venient place , it is easy by a jerk to produce the appearance of a wave , which travels ...
Page 13
... by the oxy - hydrogen light . ( Figs . 10 , 11 , 12. ) The shadow pantomimic action of living figures visible on a. FIG . 12. - Effect in front of the Curtain . and are shown on the ceiling . Written by John. SOURCES OF LIGHT . 133.
... by the oxy - hydrogen light . ( Figs . 10 , 11 , 12. ) The shadow pantomimic action of living figures visible on a. FIG . 12. - Effect in front of the Curtain . and are shown on the ceiling . Written by John. SOURCES OF LIGHT . 133.
Page 16
... shown to be due to variations in the candle , and not in the lamp . In Arago's " Astronomy , " the author describes his photometer in the fol- lowing words : " I have constructed an apparatus by means of which , upon operating with the ...
... shown to be due to variations in the candle , and not in the lamp . In Arago's " Astronomy , " the author describes his photometer in the fol- lowing words : " I have constructed an apparatus by means of which , upon operating with the ...
Page 18
... ( shown in enlarged section at Fig . 3 ) . GB is a brass tube , blacked inside , having a piece , shown separate at D C , slipping into the end B. The sloping sides , D B , B C , are covered with a white reflecting surface ( white paper ...
... ( shown in enlarged section at Fig . 3 ) . GB is a brass tube , blacked inside , having a piece , shown separate at D C , slipping into the end B. The sloping sides , D B , B C , are covered with a white reflecting surface ( white paper ...
Page 22
... parallel rays from a convex mirror . The rays which are reflected become divergent , A very large number of the waves of light are. and are shown on the ceiling . Written by John Oxenford , Esq . FIG . 33.-. 22 ON LIGHT .
... parallel rays from a convex mirror . The rays which are reflected become divergent , A very large number of the waves of light are. and are shown on the ceiling . Written by John Oxenford , Esq . FIG . 33.-. 22 ON LIGHT .
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acid action air-pump angle apertures apparatus arrangement axis ball barometer battery bismuth body boiling brass called carbon cause charged chemical circuit coating coil colours condensing conductor connected constructed copper cylinder described diameter direction disc discharge dry pile effect elec electric current electrical machine electro-magnet electroscope engine equal experiments flame fluid force galvanometer gases glass heat hydrogen inch induction instrument insulated iron latent heat latter length lens Leyden jar light lines magnetic mercury metal mirror motion needle observed obtained paper particles pass piece piston placed plate platinum polarized pole Polytechnic position pressure prism produced pump quantity rays reflected refraction resistance rheostat screw shellac shown side silver Sir Charles Wheatstone sound spark spectrum steam string substance sulphuric acid surface telegraph temperature thermometer tinfoil tion tourmaline tricity tube valve vapour velocity vessel vibrations voltaic wheel whilst wire zinc