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Libri Libri 1 - 10 di 10 su America, where the direction of the dipping-needle vas horizontal, a condition which....
" America, where the direction of the dipping-needle vas horizontal, a condition which was for some time erroneously supposed to be an indication of the minimum of magnetic force at the Earth's surface. From a comparison of the times of vibration of Mr. "
Kosmos: Entwurf Einer Physischen Weltbeschreibung - Pagina 172
di Alexander von Humboldt - 1858
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A Manual of Scientific Enquiry: Prepared for the Use of Officers in Her ...

Sir John Frederick William Herschel - 1851 - 503 pagine
...of the present century, at a station in South America where the direction of the dipping-needle was horizontal ; a condition which was for some time erroneously...surface. From a comparison of the times of vibration of M. de Humboldt's magnet in c South America and in Paris, the ratio of the magnetic force at Paris to...
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Cosmos: a sketch of a physical description of the universe

Alexander von Humboldt - 1858
...century, at a station in the Andes of South America, where the direction of the dipping needle was horizontal, a condition which was for some time erroneously...to what was supposed to be its minimum was inferred (1.348), and from the results so obtained, combined with a similar comparison made by myself between...
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Cosmos: essai d'une description physique du monde, Volume 4

Alexander von Humboldt - 1859 - 806 pagine
...South America, where the direction of the dipping-needle was horizontal, a condition which was forsome time erroneously supposed to be an indication of the...surface. From a comparison of the times of vibration of M. de Humboldt's needle in South America and in Paris, the ratio of the magnelie force af Paris to...
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A Manual of Scientific Enquiry: Prepared for the Use of Officers in Her ...

Sir John Frederick William Herschel, Robert 1808-1878 Main - 1859 - 429 pagine
...force at the Earth's surface. From a comparison of the times of vibration of M. de Humboldt's magnet in South America and in Paris, the ratio of the magnetic...to what was supposed to be its minimum was inferred ; and from the result so obtained, combined with a similar comparison made by myself between Paris...
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Kosmos: ontwerp eener natuurkundige wereldbeschrijving, Volume 4

Friedrich Wilhelm Heinrich Alexander von Humboldt - 1866
...at the Earth's //surface. Trom a comparison of the times of vibration of Mr. de //Humboldt's needie in South America and in Paris , the ratio of • ęthe...what was supposed to be its mini//mum, was inferred (1.348); and trom the resul ts so obtained , coin//bined with a similar comparison made bij myself...
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Cosmos: A Sketch of a Physical Description of the Universe, Volume 5

Alexander von Humboldt - 1868
...century, at a station in the Andes of South America, where the direction of the dipping-needle was horizontal, a condition which was for some time erroneously...surface. From a comparison of the times of vibration of M. de Humboldt's needle in South America and in Paris, the ratio of the magnetic force at Paris to...
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A manual of scientific enquiry, prepared for the use of her majesty's navy ...

Robert Main - 1871
...of the present century, at a station in South America where the direction of the dipping-needle was horizontal — a condition which was for some time...surface. From a comparison of the times of vibration of M. de Humboldt's magnet in South America and in Paris, the ratio of the magnetic force at Paris to...
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A Manual of Scientific Enquiry: Prepared for the Use of Officers in Her ...

Sir John Frederick William Herschel, Robert Main - 1871 - 392 pagine
...of the present century, at a station in South America where the direction of the dipping-needle was horizontal — a condition which was for some time...surface. From a comparison of the times of vibration of M. de Humboldt's magnet in South America and in Paris, the ratio of the magnetic force at Paris to...
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Kosmos: Entwurf einer physischen Weltbeschreibung. Mit einer ..., Volume 4

Alexander von Humboldt, Bernhard von Cotta - 1874
...century at a station in the Andes of South America , -where the direction of the dipping-needle was horizontal, a condition which was for some time erroneously...of Mr. de Humboldt's needle in South America and in Parie, the ratio of the magnetic force at Paris to what was supposed to be its minimum, was inferred...
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Cosmos, Volume 5

Alexander von Humboldt - 1883
...century, at a station in the Andes of South America, where the direction of the dipping needle was horizontal, a condition which was for some time erroneously...to what was supposed to be its minimum was inferred (1.348), and from the results so obtained, combined with a similar comparison made by myself between...
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