Optics Without MathematicsSociety for promoting Christian knowledge, 1883 - 124 páginas |
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Página 5
... undulations or waves 1 , so minute and so rapid as to pass our power of conception . Still , we had better try . We may get some notion in this way . We can easily divide an inch into 10 parts . The common carpenter's rule will not help ...
... undulations or waves 1 , so minute and so rapid as to pass our power of conception . Still , we had better try . We may get some notion in this way . We can easily divide an inch into 10 parts . The common carpenter's rule will not help ...
Página 6
... undulations , some being rather larger and some less , as we shall see hereafter ; but generally speaking an inch ... undulation at all . So much for size . Now we have to learn something about their rapidity . How many of these little ...
... undulations , some being rather larger and some less , as we shall see hereafter ; but generally speaking an inch ... undulation at all . So much for size . Now we have to learn something about their rapidity . How many of these little ...
Página 7
... undulations are set in motion by everything that we can see . Light proceeds , not only from shining bodies , such as the sun or a candle , but from everything that surrounds us , excepting of course in the dark for all that we see is ...
... undulations are set in motion by everything that we can see . Light proceeds , not only from shining bodies , such as the sun or a candle , but from everything that surrounds us , excepting of course in the dark for all that we see is ...
Página 9
... undulations that I cause will fill it everywhere ; if it were in the midst of St. Paul's Cathedral the same thing would happen , only so wide a spreading of the undulations would render them very feeble at the ends of the building ; in ...
... undulations that I cause will fill it everywhere ; if it were in the midst of St. Paul's Cathedral the same thing would happen , only so wide a spreading of the undulations would render them very feeble at the ends of the building ; in ...
Página 11
... undulations which form light , and the velocity of its transmission , when formed , from place to place . Something like the going of a watch when we journey by railway ; the rate of ticking and the rate of the train in which the watch ...
... undulations which form light , and the velocity of its transmission , when formed , from place to place . Something like the going of a watch when we journey by railway ; the rate of ticking and the rate of the train in which the watch ...
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Términos y frases comunes
angles of incidence aperture axis beautiful called candle circle cloth boards colour concave lens concave mirror conjugate foci converging convex lens course crossing crystal crystalline lens curious curves dark direction dispersion distance Double Refraction edge equal angles equi-convex eye-lens Fcap feet focal image focal length form an image fraction front happens hole inches larger lenses look looking-glass magnifying power microscope minute moon Newtonian reflector NORTHUMBERLAND AVENUE object object-glass opposite optical parallel rays perfect perfectly picture plane mirror polarised position prism produce PROMOTING CHRISTIAN KNOWLEDGE properties of light proportion radiant radius rainbow ray passes reflected rays reflecting telescopes refraction retina reverse right angles seen shorter focus side sideways sine Sir EDMUND BECKETT spectrum speculum sphere spherical spherical aberration straight line suppose surface telescope thing tion turned undulations violet waves wonderful
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