Optics Without MathematicsSociety for promoting Christian knowledge, 1883 - 124 páginas |
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Página 1
... COMMON TELESCOPES . " PUBLISHED UNDER THE DIRECTION OF THE COMMITTEE OF GENERAL LITERATURE AND EDUCATION APPOINTED BY THE SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE . LONDON : SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE , NORTHUMBERLAND ...
... COMMON TELESCOPES . " PUBLISHED UNDER THE DIRECTION OF THE COMMITTEE OF GENERAL LITERATURE AND EDUCATION APPOINTED BY THE SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE . LONDON : SOCIETY FOR PROMOTING CHRISTIAN KNOWLEDGE , NORTHUMBERLAND ...
Página 5
... common carpenter's rule will not help us , be- cause he wants half - quarters , or eighths . But we shall find the inch divided into tenths on the scales in the cases of mathematical instru- ments . Now let us take a straight narrow ...
... common carpenter's rule will not help us , be- cause he wants half - quarters , or eighths . But we shall find the inch divided into tenths on the scales in the cases of mathematical instru- ments . Now let us take a straight narrow ...
Página 14
... common conversation , and sometimes so ignorantly , that I am anxious that you should know the real meaning of the word . An angle , then , is the mutual inclination or slope of two lines which meet one an- other , or would meet if they ...
... common conversation , and sometimes so ignorantly , that I am anxious that you should know the real meaning of the word . An angle , then , is the mutual inclination or slope of two lines which meet one an- other , or would meet if they ...
Página 33
... faces re- flected by a spoon . But the same law is pre- served , even in its most perverted applications . Reflection however is not confined to polished D surfaces ; which are not the most common . Every OPTICS WITHOUT MATHEMATICS . 33.
... faces re- flected by a spoon . But the same law is pre- served , even in its most perverted applications . Reflection however is not confined to polished D surfaces ; which are not the most common . Every OPTICS WITHOUT MATHEMATICS . 33.
Página 34
Thomas William Webb. surfaces ; which are not the most common . Every object around us , except such as may be self - luminous , or black from reflecting no light , is seen no otherwise than by the light which it reflects , and which ...
Thomas William Webb. surfaces ; which are not the most common . Every object around us , except such as may be self - luminous , or black from reflecting no light , is seen no otherwise than by the light which it reflects , and which ...
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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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