* 1770 – Georg Wilhelm Friedrich Hegel, German philosopher ( d. 1831 )

For Friedrich Wilhelm Joseph Schelling, the philosophy of art is the " organon " of philosophy concerning the relation between man and nature.

Friedrich von Schlegel, August Wilhelm Schlegel, Friedrich Schleiermacher and Georg Wilhelm Friedrich Hegel have also given lectures on aesthetics as philosophy of art after 1800.

* Georg Wilhelm Friedrich Hegel ( 1975 ), Aesthetics.

The Arrhenius definition of acid – base reactions is a development of the hydrogen theory of acids, devised by Svante Arrhenius, which was used to provide a modern definition of acids and bases that followed from his work with Friedrich Wilhelm Ostwald in establishing the presence of ions in aqueous solution in 1884, and led to Arrhenius receiving the Nobel Prize in Chemistry in 1903 for " recognition of the extraordinary services ... rendered to the advancement of chemistry by his electrolytic theory of dissociation ".

Itten was heavily influenced in his teaching by the ideas of Franz Cižek and Friedrich Wilhelm August Fröbel.

It was based on an earlier code developed by Carl Friedrich Gauss and Wilhelm Weber in 1834.

61 Cygni is significant because Friedrich Wilhelm Bessel determined its parallax in 1838, the first star to have a known parallax.

* von Bismark, Friedrich Wilhelm, Graf, Beamish, North Ludlow, ( translator ), On the Uses and Application of Cavalry in War from the Text of Bismark: With Practical Examples Selected from Antient and Modern History, T. & W. Boone, London, 1855

The Ph. D. entered widespread use in the 19th century at the Friedrich Wilhelm University in Berlin as a degree to be granted to someone who had undertaken original research in the sciences or humanities.

One is his transformation of Georg Wilhelm Friedrich Hegel's idealistic understanding of dialectics into a materialist one, an act commonly said to have " put Hegel's dialectics back on its feet ".

Euripides's reputation was to take a beating early in the nineteenth century when Friedrich Schlegel and his brother August Wilhelm Schlegel championed Aristotle's ' biological ' model of theatre history, identifying Euripides with the moral, political and artistic degeneration of Athens.

His inventions were based on the printing mechanism from Hughes ' instrument, a distributor invented by Bernard Meyer during 1871, and the five-unit code devised by Carl Friedrich Gauss and Wilhelm Weber.

In 1876, Anna visited the Centennial Exhibition in Philadelphia and saw an exhibit of educational blocks created by Friedrich Wilhelm August Fröbel.

Wilhelm II initially supported the Nazi Party, and his four sons of the exiled German royal family, including Prince Eitel Friedrich and Prince Oskar, became members of the Nazi Party, in hopes that in exchange for their support, the Nazis would permit the restoration of the monarchy.

* 1849 – Friedrich Wilhelm Voigt German impostor who became famous as The Captain of Köpenick ( Der Hauptmann von Köpenick ) ( d. 1922 )

Friedrich Wilhelm Bessel ( 22 July 1784 – 17 March 1846 ) was a German mathematician, astronomer, and systematizer of the Bessel functions ( which were discovered by Daniel Bernoulli ).

He narrowly beat Friedrich Georg Wilhelm Struve and Thomas Henderson, who measured the parallaxes of Vega and Alpha Centauri in the same year.

* John Frederick William Herschel, A brief notice of the life, researches, and discoveries of Friedrich Wilhelm Bessel, London: Barclay, 1847 ( on-line )

an: Friedrich Wilhelm Bessel

In computability theory, the Ackermann function, named after Wilhelm Ackermann, is one of the simplest and earliest-discovered examples of a total computable function that is not primitive recursive.

In the late 1920s, the mathematicians Gabriel Sudan and Wilhelm Ackermann, students of David Hilbert, were studying the foundations of computation.

Among his 69 Ph. D. students in Göttingen were many who later became famous mathematicians, including ( with date of thesis ): Otto Blumenthal ( 1898 ), Felix Bernstein ( 1901 ), Hermann Weyl ( 1908 ), Richard Courant ( 1910 ), Erich Hecke ( 1910 ), Hugo Steinhaus ( 1911 ), and Wilhelm Ackermann ( 1925 ).

In 1928, David Hilbert and Wilhelm Ackermann posed the question in the form outlined above.

In 1928, Hilbert and Wilhelm Ackermann published Grundzüge der theoretischen Logik ( Principles of Mathematical Logic ), an introduction to first-order logic in which the problem of completeness was posed: Are the axioms of a formal system sufficient to derive every statement that is true in all models of the system?

* March 29 – Wilhelm Ackermann, German mathematician ( d. 1962 )

* December 24 – Wilhelm Ackermann, German mathematician ( b. 1896 )

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