Humboldt, Alexander von: Kosmos. Entwurf einer physischen Weltbeschreibung. Bd. 4. Stuttgart u. a., 1858.
solstice, and a return from west to east between the southern and the northern solstice, the amplitude being about 5 minutes of arc. The turning periods of the year are not, as many might be disposed to anticipate, those months, in which the temperature at the surface of our planet, or of the subsoil, or of the atmosphere (as far as we possess the means of judging of the temperature of the atmosphere) attains its maximum and minimum. Stations so diversely situated would indeed present in these respects thermic conditions of great variety: whereas uniformity in the epoch of the turning periods is a not less conspicuous feature in the annual variation than similarity of character and numerical value. At all the stations the solstices are the turning periods of the annual variation at the hour of which we are treating. -- The only periods of the year in which the diurnal or horary variation at that hour does actually disappear, are at the equinoxes, when the sun is passing from the one hemisphere to the other, and when the magnetic direction in the course of its annual variation from east to west, or vice versa, coincides with the direction which is the mean declination of all the months and of all the hours. -- The annual variation is obviously connected with, and dependent on, the earth's position in its orbit relatively to the sun, around which it revolves; as the diurnal variation is connected with and dependent on the rotation of the earth on its axis, by which each meridian successively passes through every angle of inclination to the sun in the round of 24 hours." Sabine on the annual and diurnal variations, in dem noch nicht erschienenen 2ten Bande der Observations made at the magn. and meteorol. Observatory at Toronto p. XVII-XX. Vergl. auch seine Abhandlung on the annual variation of the magnetic Declination at different periods of the Day in den Philos. Transact. for 1851 P. II. p. 635, und die Einleitung in die Observ. made at the Observatory at Hobarton Vol. I. p. XXXIV-XXXVI. 81 (S. 80.) Sabine on the means adopted for determining the absolute values, secular change and annual variation of the terrestrial magnetic Force, in den Phil. Transact. for 1850 P. I. p. 216. Auch in Sabine's Eröffnungsrede der Versammlung zu Belfast (Meeting of the
solstice, and a return from west to east between the southern and the northern solstice, the amplitude being about 5 minutes of arc. The turning periods of the year are not, as many might be disposed to anticipate, those months, in which the temperature at the surface of our planet, or of the subsoil, or of the atmosphere (as far as we possess the means of judging of the temperature of the atmosphere) attains its maximum and minimum. Stations so diversely situated would indeed present in these respects thermic conditions of great variety: whereas uniformity in the epoch of the turning periods is a not less conspicuous feature in the annual variation than similarity of character and numerical value. At all the stations the solstices are the turning periods of the annual variation at the hour of which we are treating. — The only periods of the year in which the diurnal or horary variation at that hour does actually disappear, are at the equinoxes, when the sun is passing from the one hemisphere to the other, and when the magnetic direction in the course of its annual variation from east to west, or vice versa, coincides with the direction which is the mean declination of all the months and of all the hours. — The annual variation is obviously connected with, and dependent on, the earth's position in its orbit relatively to the sun, around which it revolves; as the diurnal variation is connected with and dependent on the rotation of the earth on its axis, by which each meridian successively passes through every angle of inclination to the sun in the round of 24 hours.« Sabine on the annual and diurnal variations, in dem noch nicht erschienenen 2ten Bande der Observations made at the magn. and meteorol. Observatory at Toronto p. XVII-XX. Vergl. auch seine Abhandlung on the annual variation of the magnetic Declination at different periods of the Day in den Philos. Transact. for 1851 P. II. p. 635, und die Einleitung in die Observ. made at the Observatory at Hobarton Vol. I. p. XXXIV-XXXVI. 81 (S. 80.) Sabine on the means adopted for determining the absolute values, secular change and annual variation of the terrestrial magnetic Force, in den Phil. Transact. for 1850 P. I. p. 216. Auch in Sabine's Eröffnungsrede der Versammlung zu Belfast (Meeting of the
<TEI> <text> <body> <div n="1"> <div n="2"> <div n="3"> <div n="4"> <div n="5"> <note xml:id="ftn80-text" prev="ftn80" place="end" n="80"><pb facs="#f0181" n="176"/> solstice, and a return from west to east between the southern and the northern solstice, the amplitude being about 5 minutes of arc. The <hi rendition="#g">turning periods of the year</hi> are not, as many might be disposed to anticipate, <hi rendition="#g">those months, in which the temperature at the surface of our planet, or of the subsoil, or of the atmosphere</hi> (as far as we possess the means of judging of the temperature of the atmosphere) <hi rendition="#g">attains its maximum and minimum.</hi> Stations so diversely situated would indeed present in these respects <hi rendition="#g">thermic conditions</hi> of great variety: whereas uniformity in the epoch of the <hi rendition="#g">turning</hi> periods is a not less conspicuous feature in the annual variation than similarity of character and numerical value. At all the stations the <hi rendition="#g">solstices</hi> are the turning periods of the annual variation at the hour of which we are treating. — The only periods of the year in which the diurnal or horary variation at that hour does actually disappear, are at the <hi rendition="#g">equinoxes,</hi> when the sun is passing from the one hemisphere to the other, and when the magnetic direction in the course of its annual variation from east to west, or vice versa, coincides with the direction which is the mean declination of all the months and of all the hours. — The <hi rendition="#g">annual variation</hi> is obviously connected with, and dependent on, the <hi rendition="#g">earth's position</hi> in its orbit relatively to the sun, around which it revolves; as the <hi rendition="#g">diurnal variation</hi> is connected with and dependent on the <hi rendition="#g">rotation of the earth</hi> on its axis, by which each meridian successively passes through every angle of inclination to the sun in the round of 24 hours.« <hi rendition="#g">Sabine on the annual and diurnal variations,</hi> in dem noch nicht erschienenen 2ten Bande der <hi rendition="#g">Observations made at the magn. and meteorol. Observatory at Toronto</hi> p. XVII-XX. Vergl. auch seine Abhandlung <hi rendition="#g">on the annual variation of the magnetic Declination at different periods of the Day</hi> in den <hi rendition="#g">Philos. Transact.</hi> for 1851 P. II. p. 635, und die Einleitung in die <hi rendition="#g">Observ. made at the Observatory at Hobarton</hi> Vol. I. p. XXXIV-XXXVI.</note> <note xml:id="ftn81-text" prev="ftn81" place="end" n="81"> (S. 80.) <hi rendition="#g">Sabine on the means adopted for determining the absolute values, secular change and annual variation of the terrestrial magnetic Force,</hi> in den <hi rendition="#g">Phil. Transact.</hi> for 1850 P. I. p. 216. Auch in Sabine's Eröffnungsrede der Versammlung zu Belfast <hi rendition="#g">(Meeting of the </hi></note> </div> </div> </div> </div> </div> </body> </text> </TEI> [176/0181]
⁸⁰ solstice, and a return from west to east between the southern and the northern solstice, the amplitude being about 5 minutes of arc. The turning periods of the year are not, as many might be disposed to anticipate, those months, in which the temperature at the surface of our planet, or of the subsoil, or of the atmosphere (as far as we possess the means of judging of the temperature of the atmosphere) attains its maximum and minimum. Stations so diversely situated would indeed present in these respects thermic conditions of great variety: whereas uniformity in the epoch of the turning periods is a not less conspicuous feature in the annual variation than similarity of character and numerical value. At all the stations the solstices are the turning periods of the annual variation at the hour of which we are treating. — The only periods of the year in which the diurnal or horary variation at that hour does actually disappear, are at the equinoxes, when the sun is passing from the one hemisphere to the other, and when the magnetic direction in the course of its annual variation from east to west, or vice versa, coincides with the direction which is the mean declination of all the months and of all the hours. — The annual variation is obviously connected with, and dependent on, the earth's position in its orbit relatively to the sun, around which it revolves; as the diurnal variation is connected with and dependent on the rotation of the earth on its axis, by which each meridian successively passes through every angle of inclination to the sun in the round of 24 hours.« Sabine on the annual and diurnal variations, in dem noch nicht erschienenen 2ten Bande der Observations made at the magn. and meteorol. Observatory at Toronto p. XVII-XX. Vergl. auch seine Abhandlung on the annual variation of the magnetic Declination at different periods of the Day in den Philos. Transact. for 1851 P. II. p. 635, und die Einleitung in die Observ. made at the Observatory at Hobarton Vol. I. p. XXXIV-XXXVI.
⁸¹ (S. 80.) Sabine on the means adopted for determining the absolute values, secular change and annual variation of the terrestrial magnetic Force, in den Phil. Transact. for 1850 P. I. p. 216. Auch in Sabine's Eröffnungsrede der Versammlung zu Belfast (Meeting of the
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| Zitationshilfe: | Humboldt, Alexander von: Kosmos. Entwurf einer physischen Weltbeschreibung. Bd. 4. Stuttgart u. a., 1858, S. 176. In: Deutsches Textarchiv <https://www.deutschestextarchiv.de/humboldt_kosmos04_1858/181>, abgerufen am 03.05.2024. |
