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SCHWABE, SAMUEL HEINRICH (1789–1875)

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Originally appearing in Volume V24, Page 388 of the 1911 Encyclopedia Britannica.
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SCHWABE, See also:SAMUEL HEINRICH (1789–1875) , See also:German astronomer, was See also:born on the 25th of See also:October 1789 at See also:Dessau, where he died on the 11th of See also:April 1875. At first an See also:apothecary, he turned his See also:attention to See also:astronomy, and in 1826 commenced his observations on See also:sun-spots. In 1843 he made the See also:suggestion of a probable ten See also:year See also:period (i.e. that at every tenth year the number of spots reached a maximum), but it met with scant approval, and he continued his observations, which were afterwards utilized in 1851 by See also:Humboldt in the third See also:volume of his Kosmos. The periodicity of sun-spots is now fully recognized (see SUN); and to Schwabe is thus due the See also:credit of one of the most important discoveries in astronomy. See H. H. See also:Turner, Astronomical See also:Discovery (1904).

End of Article: SCHWABE, SAMUEL HEINRICH (1789–1875)

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