PhysicsAppleton, 1878 - 149 páginas |
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... rays Recapitulation Nature of Heat ( second notice ) ELECTRIFIED Bodies . Conductors and Non - conductors . Two kinds of Electricity — their mutual action They exist combined in unexcited bodies Action of excited on unexcited bodies The ...
... rays Recapitulation Nature of Heat ( second notice ) ELECTRIFIED Bodies . Conductors and Non - conductors . Two kinds of Electricity — their mutual action They exist combined in unexcited bodies Action of excited on unexcited bodies The ...
Página 63
... rays of light and heat which they give out travel through the air . eye . : 49. Expansion of bodies when heated.- When a body is heated , it almost always expands ; that is to say , it gets larger in all directions . To prove to you ...
... rays of light and heat which they give out travel through the air . eye . : 49. Expansion of bodies when heated.- When a body is heated , it almost always expands ; that is to say , it gets larger in all directions . To prove to you ...
Página 89
... rays of heat , but those rays are dark rays , and do not affect the eye . As the heating process goes on , a few of the rays which it gives out begin to affect the eye and the body becomes red hot ; it next acquires a yellow heat , next ...
... rays of heat , but those rays are dark rays , and do not affect the eye . As the heating process goes on , a few of the rays which it gives out begin to affect the eye and the body becomes red hot ; it next acquires a yellow heat , next ...
Página 92
... ray of light strikes a polished surface , the reflected ray rises from the surface with the same slope as the ray that strikes the surface falls towards it , and both rays , if you could imagine them squeezed flat against the surface ...
... ray of light strikes a polished surface , the reflected ray rises from the surface with the same slope as the ray that strikes the surface falls towards it , and both rays , if you could imagine them squeezed flat against the surface ...
Página 94
... rays of heat from the fire in the one focus strike the mirror near it , and are reflected from it in lines that bring them to the other reflector , and they are then again reflected in such lines as to bring them all to- gether into the ...
... rays of heat from the fire in the one focus strike the mirror near it , and are reflected from it in lines that bring them to the other reflector , and they are then again reflected in such lines as to bring them all to- gether into the ...
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