 | Benjamin Martin - Science - 1747 - 574 pages
...ALTITUDE for any given Day and Hour: BRING the Sun's Place to the Meridian; fetthe Hour-Index to the upper XII -, then turn the Globe till the Index points to the given Hour, where let it fland -, then fcrewing the Quadrant of Altitude in the Zenith, lay it over the Sun's Place,... | |
 | Isaac Watts - Astronomy - 1760 - 270 pages
...Night. . Set the Globe exadly North and South: Redtify it for the Latitude, and for the Sun's Place; then turn the Globe till the Index points to the given Hour. Thus every Star on the Globe will exactly anfwer the Appearance of the Stars in the Heavens ; and you... | |
 | John Pinkerton - Africa - 1804 - 694 pages
...the place, and bring the sun's place in the ecliptic to the brazen meridian.- and set the index to XII ; then turn the globe till the index points to the given hour, and in that position the globe represents the proper situation of all the heavenly bodies, in respect to... | |
 | William Nicholson - 1809 - 752 pages
...for any given day and hour." Bring the sun's place to the meridian ; set the hour-index to the upper xii; then turn the globe till the index points to the given hour, where let it stand ; then screwing the quadrant of altitude in the zenith, lay it over the sun's place,... | |
 | William Nicholson - Natural history - 1809 - 700 pages
...for any given day and hour." Bring the sun's place to the meridian ; set the hour-index to the upper xii; then turn the globe till the index points to the given hour, where let it stand ; then screwing the quadrant of altitude in the zenith, lay it over the sun's place,... | |
 | William Thackwray - Astronomy - 1810 - 160 pages
...proposed. RULE. § 113k Bring the place to the brass meridian, and set the index to the given hour ; then turn the globe till the index points to the given hour, and under the brass meridian will be the places required. If the hour at the required places be earlier... | |
 | William Enfield - Astronomy - 1811 - 476 pages
...XVII. To find all those places where it is noon, at any given hour of the dayt at any given place. Bring the given place to the brass meridian, and set the index to the uppermost 12 ; then turn the globe till the index points to the given hour, and it will be noon to all the places... | |
 | Thomas Keith - Astronomy - 1811 - 388 pages
...the day being given, to Jind all places on the globe -where it is then noon, or any other given hour. Rule. Bring the given place to the brass meridian* and set the index of the hour circle to Iz ; then, as the difference of time between the given and required places is... | |
 | J. Goldsmith - 1811 - 184 pages
...tfie sun at any given plact and hour. Rule. — Rectify for the latitude, zenith, and tun's place. Turn the globe till the index points to the given hour, and bring the quadrant of altitude to the sun's place at that hour, and the degrees counted ort that from... | |
 | George Adams - Astronomy - 1812 - 552 pages
...Jlnd all those places ivfiere if is noon, at any given hour of the day, at any given place. General rule. Bring the given place to the brass meridian,...turn the globe till the index points to the given honr, and it will be noon to all the places under the meridian. As the diurnal motion of the earth... | |
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... than the hour at the given place, turn the globe eastward till the index has passed over as many hours as are equal to the given... 
