Transactions of the Royal Scottish Society of Arts, Volumen4Neill & Company, 1856 Vol. 1- includes the proceedings of the society. |
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Página 3
... tion . The diverging rays falling upon the first or inner side of the zone are refracted , and pass on to the second or upper side , where they suffer total reflection and then emerge after a second refraction at the third or outer side ...
... tion . The diverging rays falling upon the first or inner side of the zone are refracted , and pass on to the second or upper side , where they suffer total reflection and then emerge after a second refraction at the third or outer side ...
Página 7
... tion from metallic specula , induced me to attempt further improvements in the Holophotal system of illumination . M. L. Fresnel found that the totally reflecting prisms p , figs . 11 and * A small temporary light for Morecambe Harbour ...
... tion from metallic specula , induced me to attempt further improvements in the Holophotal system of illumination . M. L. Fresnel found that the totally reflecting prisms p , figs . 11 and * A small temporary light for Morecambe Harbour ...
Página 8
... tion in every plane . In the holophotal apparatus , figs . 3 and 4 , Plate I. , if we retain the lens and the spherical mirror , and in place of the paraboloid , we conceive the arc between the lens and the spherical mirror to be filled ...
... tion in every plane . In the holophotal apparatus , figs . 3 and 4 , Plate I. , if we retain the lens and the spherical mirror , and in place of the paraboloid , we conceive the arc between the lens and the spherical mirror to be filled ...
Página 9
... tion round the horizontal axis of the instrument of triangles similar to a b c , fig . 10 , with a radius equal to a f . The angle formed by the radius with the horizontal axis of the instru- ment varies from nearly 90 ° down to zero ...
... tion round the horizontal axis of the instrument of triangles similar to a b c , fig . 10 , with a radius equal to a f . The angle formed by the radius with the horizontal axis of the instru- ment varies from nearly 90 ° down to zero ...
Página 17
... tion ; and where dioptric action was employed there would also be a risk of the light being disfigured by prismatic colours . These difficulties I have found to exist to a greater or less extent in repeated experiments which were begun ...
... tion ; and where dioptric action was employed there would also be a risk of the light being disfigured by prismatic colours . These difficulties I have found to exist to a greater or less extent in repeated experiments which were begun ...
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Términos y frases comunes
Alex Alexander angle apparatus applied arch architect axis ball caisson canal carriage centre Chair coal colour colour-blind Committee constructed Convener David DAVID LANDALE decimal Description diameter disc Donations were laid Drawings Edinburgh effect engineer farthings feet fixed following Donations George George Wilson Glasgow glass Haarlem harbour holophotal improvement inches instrument iron James JAMES TOD John KEITH PRIZE Leith light lighthouse London magnet means method Minie ball Minutes of last motion paper placed plane Plate present President Prizes Professor pumps Railway Railway Signal rays read and approved Read and exhibited Report revolving river River Clyde Robert rotation Royal Scottish Society Sang screw Session side signal Society of Arts Society's Silver Medal spandril steam Stevenson Stornoway Street surface Thanks voted theodolite Thomas Thomas Grainger Thomas Stevenson tion tons Torbane vessels weight wheel William WILLIAM SWAN Wilson
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