An Elementary Handbook of PhysicsBlackwood, 1871 - 389 páginas |
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Página 5
... light , a gas - light , a table , a chair , a book , & c . But we see a light by virtue of its own power of acting ... falls on my face , so on that it falls on the book and picture . From the surfaces of these the force is reflected in ...
... light , a gas - light , a table , a chair , a book , & c . But we see a light by virtue of its own power of acting ... falls on my face , so on that it falls on the book and picture . From the surfaces of these the force is reflected in ...
Página 6
... light and shade is what gives us the idea of a human face . But whether I look straight at the man , or whether I look at him in the glass , I see him by precisely the same means — the radiation from his features of the light falling on ...
... light and shade is what gives us the idea of a human face . But whether I look straight at the man , or whether I look at him in the glass , I see him by precisely the same means — the radiation from his features of the light falling on ...
Página 22
... falls depends on the distance through which it has moved , and its velocity . A ... falling body the force becomes greater with the distance through which it ... light and heat , is inversely as the square of the distance - i . e . , at ...
... falls depends on the distance through which it has moved , and its velocity . A ... falling body the force becomes greater with the distance through which it ... light and heat , is inversely as the square of the distance - i . e . , at ...
Página 23
... light , is a transfer of mo- tion and not of matter , it might be enough to ... falling on the coast , it is difficult to realise that the waves are but the ... light , sound , & c . , the original impulse is given to the first wave only ...
... light , is a transfer of mo- tion and not of matter , it might be enough to ... falling on the coast , it is difficult to realise that the waves are but the ... light , sound , & c . , the original impulse is given to the first wave only ...
Página 25
... fall- from the bell at a , and I hear nothing ; but at b , all the ing from a upon A , and thence transmitted to B ... light enough to affect my eye with the sensa- tion of sight . So with the rays of sound proceeding from A to B , the ...
... fall- from the bell at a , and I hear nothing ; but at b , all the ing from a upon A , and thence transmitted to B ... light enough to affect my eye with the sensa- tion of sight . So with the rays of sound proceeding from A to B , the ...
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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.