An Elementary Handbook of PhysicsBlackwood, 1871 - 389 páginas |
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Página
... MAGNETIC ELECTRICITY , 257-261 THERMO - ELECTRICITY , 262-264 RADIATION , 265-276 ABSORPTION , 277-284 REFLECTION , 285-306 REFRACTION , 307-318 TRANSMISSION , 319-320 POLARISATION , 321-332 CONDUCTION , 333-338 CONVECTION , 339-342 ...
... MAGNETIC ELECTRICITY , 257-261 THERMO - ELECTRICITY , 262-264 RADIATION , 265-276 ABSORPTION , 277-284 REFLECTION , 285-306 REFRACTION , 307-318 TRANSMISSION , 319-320 POLARISATION , 321-332 CONDUCTION , 333-338 CONVECTION , 339-342 ...
Página 11
... magnet , to be bought at any toy - shop , will attract small iron or steel bodies . A larger magnet has greater attractive force . An ordinary piece of steel may be made into a magnet by being stroked several times with another magnet ...
... magnet , to be bought at any toy - shop , will attract small iron or steel bodies . A larger magnet has greater attractive force . An ordinary piece of steel may be made into a magnet by being stroked several times with another magnet ...
Página 137
... magnet - i . e . , will tend to set itself north and south , and will at- tract very light iron bodies or another magnet like itself . This also is more easily and extensively done by voltaic electricity , and I will therefore discuss ...
... magnet - i . e . , will tend to set itself north and south , and will at- tract very light iron bodies or another magnet like itself . This also is more easily and extensively done by voltaic electricity , and I will therefore discuss ...
Página 139
... magnet , one end being positive and the other negative . While it cools the poles of the magnet are re- versed , but it is still really a magnet . If it be broken , each part is a magnet , showing that the polarisation extends ...
... magnet , one end being positive and the other negative . While it cools the poles of the magnet are re- versed , but it is still really a magnet . If it be broken , each part is a magnet , showing that the polarisation extends ...
Página 142
... power , and that the rapidity or direction of the vibration determines in which it shall be manifested ? Again , the vibrations of an electric NATURE OF ELECTRICITY . 143 current deflect a magnetic needle 142 ELECTRICITY .
... power , and that the rapidity or direction of the vibration determines in which it shall be manifested ? Again , the vibrations of an electric NATURE OF ELECTRICITY . 143 current deflect a magnetic needle 142 ELECTRICITY .
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Palavras e frases frequentes
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.