An Introduction to the Use of the Globes ... 3. Ed. Corr. and EnlBaldwin, 1816 |
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Side viii
... upper XII , to the given place , and then opposite to any other place on the clock , is the hour required . When it is noon at Great Britain , what is the hour at Mexico , Otaheite , and Bengal ? Answer , 5 at Mexico , nearly 2 at ...
... upper XII , to the given place , and then opposite to any other place on the clock , is the hour required . When it is noon at Great Britain , what is the hour at Mexico , Otaheite , and Bengal ? Answer , 5 at Mexico , nearly 2 at ...
Side 42
... twelve , or twenty - four hours , answering to a natural day , and to the time that the earth performs its daily motion on its axis . The upper XII represents noon , the lower XII represents midnight ; the hours on the eastern side show ...
... twelve , or twenty - four hours , answering to a natural day , and to the time that the earth performs its daily motion on its axis . The upper XII represents noon , the lower XII represents midnight ; the hours on the eastern side show ...
Side 52
... upper XII , turn the globe until the index points to the lower XII ; and the place under the mark is the periœci required . Given London ; required its periœci ? Answer , under 51 ° 30 ' N. lat . and 180 ° E. or W. lon . in the sea of ...
... upper XII , turn the globe until the index points to the lower XII ; and the place under the mark is the periœci required . Given London ; required its periœci ? Answer , under 51 ° 30 ' N. lat . and 180 ° E. or W. lon . in the sea of ...
Side 53
... upper XII , turn the globe till the index points to the lower XII ; and the place under the same degree of latitude on the opposite side of the equator , to that which the given place lies , is the antipodes required . Given London ...
... upper XII , turn the globe till the index points to the lower XII ; and the place under the same degree of latitude on the opposite side of the equator , to that which the given place lies , is the antipodes required . Given London ...
Side 64
... upper XII , turn the globe until the other place comes under the meridian , and the index will . * The difference of time may be found by subtracting the longitudes of the given places , if on the same side of the meridian , or adding ...
... upper XII , turn the globe until the other place comes under the meridian , and the index will . * The difference of time may be found by subtracting the longitudes of the given places , if on the same side of the meridian , or adding ...
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An Introduction to the Use of the Globes ... 3. Ed. Corr. and Enl John Greig Uten tilgangsbegrensning - 1816 |
Vanlige uttrykk og setninger
20th of March 21st of June analemma Answer Argo Navis Aries Armillary Sphere brass meridian Bring the given bring the sun's Canis Major Canis Minor Cape Cape Frio centre climate compass constellations diameter difference of latitude distance sailed diurnal motion divide earth eastern verge ecliptic English miles equal equator equinoctial fix the quadrant given day given latitude Given London given place graduated edge hemisphere horizon hour hour-circle index points index will point latitude and longitude length Lizard Point longest day longitude mark meri meridian altitude midnight month moon moon's noon number of degrees oblique ascension orbit parallels of latitude pass planets polar circles PROBLEM quadrant of altitude reckoned Rectify the globe required the place Required the sun's right angles right ascension rising and setting round set the index ship sails side south point stars sun rises sun's place swer turn the globe upper XII vertical
Populære avsnitt
Side 11 - Things which are halves of the same are equal to one another. 8. Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another. 9. The whole is greater than its part. 10.
Side 140 - On the plate is represented a total lunar eclipse ; the moon being in the midst of the earth's shadow. Now it will be apparent that in the situation of the sun, earth, and moon, as represented in the figure, this eclipse will be visible from all parts of that hemisphere of the earth which is next the moon, and that the moon's disk will be equally obscured, from whatever point it is seen.
Side 11 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals the wholes are equal. 3. If equals be taken from equals the remainders are equal. 4. If equals be added to unequals the wholes are unequal. 5. If equals be taken from unequals the remainders are unequal. 6. Things which are double of the same are equal to one another.
Side 107 - ANGLE OF POSITION between two places on the terrestrial globe, is an angle at the zenith of one of the places, formed by the meridian of that place, and a vertical circle passing through the other place...
Side 10 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.
Side 66 - ... bring the given place to the meridian, and set the index to the given hour. Turn the globe till the index points to...
Side 128 - Sun's centre, which is 49,000 miles, is within less thin a third part of the Sun's semi-diameter from his surface. In that part of its orbit which is nearest the Sun, it flies...
Side 47 - PERKECI are those who live in the same latitude, but in opposite longitudes ; when it is noon with the one, it is midnight with the other; they have the same length of days, and the same seasons of the year. The inhabitants of the poles can have no Perioeci.
Side 69 - Rectify the globe for the latitude of the place. Bring the sun's place in the ecliptic to the meridian, and set the index at 12.
Side 140 - ... small portion of the hemisphere on which the moon's shadow falls, it happens that for any particular place on the earth, lunar eclipses are more frequently...