 | David Jennings - 1766 - 218 oldal
...(which is the Sun's Declination at that time ;) then bring the given Place to the Meridian, and fet the Index to the given Hour ; turn the Globe till the Index points to 12 at Noon, and the Place on the Globe, which lies under that Degree of the Meridian that was before... | |
 | Thomas Hogg - 1806 - 130 oldal
...at any given time. Having found the sun's declination, bring the place for which the hour is given to the meridian, and set the index to the given hour ; turn the globe till the index point-to the upper XII, and the place under the sun's declination on the meridian has the sun at that... | |
 | J. Goldsmith - 1811 - 184 oldal
...the sun's place, found in the ecliptic for that day, to the meridian, which shews its declination ; then bring the given place to the meridian, and set the index to the given Lour. ' Turn the globe till the index points to twelve at noon, and the place exactly under the sun's... | |
 | John Greig - 1816 - 224 oldal
...then vertical.* Bring the sun's place for the given day to the meridian, and mark the degree over it, then bring the given place to the meridian, and set the index to the upper XII, turn the globe to the right if the time is in the afternoon, and to the left if the time... | |
 | 1820 - 352 oldal
...for that day, to the meridian, which shews his declination : elevate the pole to that declination j then bring the given place to the meridian, and set the index to twelve o'clock at noon. Turn the globe till the index points to the given hour ; and the place exactly... | |
 | Sir Richard Phillips - 1821 - 256 oldal
...the sun's place, found in the ecliptic for that day, to the meridian, which shows its declination ; then bring the given place to the meridian, and set...the globe till the index points to twelve at. noon, find the place exactly under the sun's declination, on the brazen meridian, will have the sun vertical... | |
 | Edward Bruce (bookseller.) - 1821 - 418 oldal
...and setting for any given day, at any given place. 1. Elevate the globe for the sun's declination, bring the given place to the meridian, and set the index to 12. 2. Turn the globe till the given place come to the eastern edge of the horizon, and the index will... | |
 | James Ryan - 1827 - 408 oldal
...not in the frigid zones, being given, to find the sun's declination and the day of the month. RULE I. Bring the given place to the meridian, and set the index to twelve ; turn the globe eastward till the index has passed over as many hours as are. equal to half... | |
 | James Charlton - 1829 - 250 oldal
...given, to find what hour it it at any other plaee. RULE.—Bring the place where the time is given to the meridian, and set the index to the given hour; turn the globe until the other place conies to the meridian, and the index will shew the time required. , 1., When... | |
 | Hervey Wilbur - 1831 - 170 oldal
...place for the given day to the brass meridian; mark its declination) bring the given place to the brass meridian, and set the index to the given hour ; turn the globe till the index points to 12 ; the degree of the Sun's declination for that day shews the place to which it is vertical at the... | |
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... then bring the given place to the meridian, and set the index to the given hour. Turn the globe till the index points to twelve at noon ; and the place exactly under the sun's declination on the brazen meridian will have the sun vertical at the given... 
