 | Edward Augustus Kendall - 1811 - 962 pages
...«. If a plate similar to this triangle be made as thick as the distance between the lines ac and bd, and set upright between them, touching at a and b; its hypothenuse ag will be parallel to the axis of the world, when the dial is truly set, and will cast a shadow on... | |
 | George Adams - 1813 - 576 pages
...similar to this triangle, of the thickness of the interval of the parallel lines acbd which must be made and set upright between them touching at a and...axis of the earth when the dial is fixed truly, and of course cast its shadow on the hour of the day. To make an erect south dial, take the complement... | |
 | George Adams - 1813 - 648 pages
...similar to this triangle, of the thickness of the interval of the parallel lines aebd which must be made and set upright between them- touching at a and b: its hypothenuse or axis ng will be parallel to the axis of the earth when the dial is fixed truly, and cf course cast its shadow... | |
 | James Ferguson - 1823 - 406 pages
...If a plate, similar to this triangle, be made as thick as the distance between the lines ac and bd, and set upright between them, touching at a and b, its hypothenuse a g' wUl be parallel to the axis of the world, when the dial is truly set ; and will cast a shadow... | |
 | James Ferguson - 1839 - 554 pages
...ia. If a plate similar to this triangle be made as thick as the distance between the lines ac and bd, and set upright between them, touching at a and b, its hypothenuse ag will be parallel to the axis of the world, when the dial is truly set ; and will cast a shadow on... | |
 | John Fry Heather - 1849 - 202 pages
...center at a draw the line ag for the axis of the gnomon agi, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there...made and set upright between them, touching at a and 5, its hypothenuse or axis ag will be parallel to the axis of the earth when the dial is fixed truly,... | |
 | John F. Heather - 1849 - 208 pages
...center at a draw the line ag for the axis of the gnomon agi, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there...thickness of the interval of the parallel lines ac and bd, being now made and set upright between them, touching at a and fc, its hypothenuse or axis ag will... | |
 | Lucius D. Gould - 1853 - 234 pages
...center at a draw the line ag for the axis of the gnomon agi, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there will be formed a triangle agi. A plate or triangular frame similar to this triangle, and of the thickness of the interval of... | |
 | Lucius D. Gould - 1857 - 464 pages
...center at a draw the line ag for the axis of the gnomon ag 1, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there will be formed a triangle ag 1. A plate or triangular frame similar to this triangle, and of the thickness of the interval of the... | |
 | John Fry Heather - 1859 - 198 pages
...agi, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there will he formed a triangle ag i. A plate or triangular frame...thickness of the interval of the parallel lines ac and bd, being now made and set upright between them, touching at a and b, its hypo then use or axis ay... | |
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From the center at a draw the line ag for the axis of the gnomon agi, and from g let fall the perpendicular gi upon the horizontal meridian line an, and there will be formed a triangle ag i. 