Optics Without MathematicsSociety for promoting Christian knowledge, 1883 - 124 páginas |
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Página 3
... Light ! And well might He thus open His wonderful and beautiful creation . We are so accustomed to the blessing of Light that we are scarcely able to value it as we ought . But let us try to think what our condition would be were light ...
... Light ! And well might He thus open His wonderful and beautiful creation . We are so accustomed to the blessing of Light that we are scarcely able to value it as we ought . But let us try to think what our condition would be were light ...
Página 4
... light with all the processes of animal and vegetable existence ; but at any rate it could only be a condition of ... Light is one of the very best and chiefest gifts of Him who is pleased to describe Himself under the name of Light . To ...
... light with all the processes of animal and vegetable existence ; but at any rate it could only be a condition of ... Light is one of the very best and chiefest gifts of Him who is pleased to describe Himself under the name of Light . To ...
Página 5
Thomas William Webb. is called the Undulatory Theory of Light . This supposes light to consist of 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 ...
Thomas William Webb. is called the Undulatory Theory of Light . This supposes light to consist of 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 ...
Página 6
... light that enters the eye ; for it is considered certain that lengthways , or straight from the source of light , there is no undulation at all . So much for size . Now we have to learn something about their rapidity . How many of these ...
... light that enters the eye ; for it is considered certain that lengthways , or straight from the source of light , there is no undulation at all . So much for size . Now we have to learn something about their rapidity . How many of these ...
Página 7
... light - vibrations are rather slower , others are more rapid still . Are we really expected to admit such mar- vellous statements ? Yes , we are ; for this plain reason , that no other supposition has been . found to account for all the ...
... light - vibrations are rather slower , others are more rapid still . Are we really expected to admit such mar- vellous statements ? Yes , we are ; for this plain reason , that no other supposition has been . found to account for all the ...
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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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