An Elementary Handbook of PhysicsBlackwood, 1871 - 389 páginas |
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Página 14
... substance exposed to it and pushed them apart . In the first stage of this expansion , the repulsion effected by the heat is not sufficient to overcome the cohesion of the particles ; and the body , though increased in size , is still ...
... substance exposed to it and pushed them apart . In the first stage of this expansion , the repulsion effected by the heat is not sufficient to overcome the cohesion of the particles ; and the body , though increased in size , is still ...
Página 16
... substance is said to be solid when all its particles are so held together by attraction as to require some force to separate them . But it must not be supposed that these atoms are in ab- solute contact in any substance , whether solid ...
... substance is said to be solid when all its particles are so held together by attraction as to require some force to separate them . But it must not be supposed that these atoms are in ab- solute contact in any substance , whether solid ...
Página 28
... substance . The balloon of carbonic gas refracts the rays of sound because the velocity of sound - vibrations through carbonic gas is less than through air . But why should it be so ? For precisely the same reason that walking through ...
... substance . The balloon of carbonic gas refracts the rays of sound because the velocity of sound - vibrations through carbonic gas is less than through air . But why should it be so ? For precisely the same reason that walking through ...
Página 44
... substance but of the same thickness ; and we find this to be the case . If we have on a board several wires of equal lengths and thicknesses and stretched by equal weights , but of different densities - say of silver , alumi- nium ...
... substance but of the same thickness ; and we find this to be the case . If we have on a board several wires of equal lengths and thicknesses and stretched by equal weights , but of different densities - say of silver , alumi- nium ...
Página 45
... substance , he could draw one block of some heavy substance which would be of the same weight as the whole hundred others ; and , as far as the horse was concerned , it would be immaterial whether he drew a large number of the light or ...
... substance , he could draw one block of some heavy substance which would be of the same weight as the whole hundred others ; and , as far as the horse was concerned , it would be immaterial whether he drew a large number of the light or ...
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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
Passagens conhecidas
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.
Página 391 - A Manual of Palaeontology, for the Use of Students. With a General Introduction on the Principles of Palaeontology.
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.