 | Thomas Keith - 1811 - 388 σελίδες
...brass meridian, and set the index of the hour circle to twelve ; turn the globe westward till the given day of the month, on the analemma, comes to the western edge of the horizon, and the hours passed over by the index will show the time of the sun's setting, or the beginning ot... | |
 | Thomas Keith - 1819 - 380 σελίδες
...analemma to the brass meridian, and set the index of the hour circle to twelve ; turn the globe westward till the day of the month on the analemma comes to the western semi-circle of the horizon, and the number of hours passed over by the index, will be the time of the... | |
 | James Ryan - 1827 - 408 σελίδες
...analemma to the meridian, , and set the index of the hour circle to twelve ; turn the globe westward till the day of the month on the analemma comes to the western part of the horizon, and the number of hours passed over by the index, will be the time of the sun's... | |
 | Joseph Guy - 1832 - 412 σελίδες
...analemma to the brass meridian, and set the index of the hour-circle to twelve ; turn the globe westward till the day of the month on the analemma comes to the western semicircle of the horizon, and the number of hours passed over by the index will be the time of the... | |
 | Joseph Guy - 1845 - 370 σελίδες
...analemma to the brass meridian, and set the index of the hour-circle to twelve -, turn the globe westward till the day of the month on the analemma comes to the western semicircle of the horizon, and the number of hours passed over by the index will be the time of the... | |
 | Thomas Keith - 1848 - 486 σελίδες
...of the analemma to the brass meridian, and set the index of the hour-circle to 12 ; turn the globe till the day of the month on the analemma comes to the eastern or western semicircle of the horizon, and the index will show the time of the sun's rising,... | |
 | James M'Intire - 1850 - 352 σελίδες
...analemma to the brass meridian, and set the index of the hour circle to 12 ; turn the globe westward till the day of the month on the analemma comes to the western edge of the horizon, and the number of hours passed over by the index, will be the time of the sun's setting, &c. NOTE.... | |
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Find the latitude of the given place, and elevate the north or south pole, according as the latitude is north or south, the same number of degrees above the horizon ; bring the middle of the analemma to the brass meridian, and set the index of the hour... 