Science, Volume 14John Michels (Journalist) American Association for the Advancement of Science, 1889 |
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Page 224
... object can be immediately read off , provided the side of the object con- tains the height ; if it does not , other means of triangulation have to be adopted , several methods of which can be readily improvised by one accustomed to such ...
... object can be immediately read off , provided the side of the object con- tains the height ; if it does not , other means of triangulation have to be adopted , several methods of which can be readily improvised by one accustomed to such ...
Page 348
... object from the eye , under proper conditions , the general as- sumption has been that the result depends on the size of the retinal image , or by the angle made at the centre of the eye by the extreme contours of the object . In the ...
... object from the eye , under proper conditions , the general as- sumption has been that the result depends on the size of the retinal image , or by the angle made at the centre of the eye by the extreme contours of the object . In the ...
Page 402
... object possesses the power of illumination , all the rays proceeding from the space occu- pied by the curve will , in an exceedingly short space of time , con- verge at one point after having been subjected to a double reflec- tion on ...
... object possesses the power of illumination , all the rays proceeding from the space occu- pied by the curve will , in an exceedingly short space of time , con- verge at one point after having been subjected to a double reflec- tion on ...
Contents
A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES | 35 |
Subscriptions United States and Canada | 60 |
Communications will be welcomed from any quarter Rejected manuscripts will | 236 |
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