See also:

• AUGUST (originally Sextilis)

AUGUST See also:

• FERDINAND
• FERDINAND (1577-1650)
• FERDINAND (COLOGNE)
• FERDINAND (Span. Fernando or Hernando; Ital. Ferdinando or Ferrante; in O. H. Ger. Herinand, i.e. " brave in the host," from O. H. G. Heri, "army," A. S. here, Mod. Ger. Heer, and the Goth. nan]jan, " to dare ")
• FERDINAND, MAXIMILIAN KARL LEOPOLD MARIA

FERDINAND See also:

• AUGUST FERDINAND MOBIUS (1790-1868)

MOBIUS (1790-1868)  , See also:

• GERMAN
• GERMAN, DUTCH AND SCANDINAVIAN

German astronomer and mathematician, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born at Schulpforta on the 17th of See also:

• NOVEMBER (Lat. novem, nine)

November 1790 . At See also:

• LEIPZIG

Leipzig, See also:

• GOTTINGEN

Gottingen and See also:

• HALLE (known as HALLE-AN-DER-SAALE, t0 distinguish it from the small town of Halle in Westphalia)
• HALLE, SIR CHARLES (originally KARL HALLE) (1819-1895)

Halle he studied for four years, ultimately devoting himself to See also:

• MATHEMATICS (Gr. /saBnµar1Kil, Sc. vOcvn or E7rlQTt'µn; from p iN.La, "learning" or "science ")

mathematics and See also:

• ASTRONOMY (from Gr. &arpov, a star, and v ,usiv, to classify or arrange)

astronomy . In 1815 he settled at Leipzig as privatdocent, and the next See also:

• YEAR

year became extraordinary See also:

• PROFESSOR (the Latin noun formed from the verb profiteri, to declare publicly, to acknowledge, profess)

professor of astronomy in connexion with the university . Later he was chosen director of the university See also:

• OBSERVATORY

observatory, which was erected (1818–1821) under his superintendence . In 1844 he was elected See also:

• ORDINARY (med. Lat. ordinarius, Fr. ordinaire)

ordinary professor of higher See also:

• MECHANICS

mechanics and astronomy, a position which he held till his See also:

• DEATH

death on the 26th of See also:

• SEPTEMBER (Lat. septem, seven)

September 1868 . His See also:

• DOCTOR (Lat. for " teacher ")

doctor's dissertation, De computandis occultationibus fixarum per See also:

• PLANET (Gr. ssXavirrns, a wanderer)

planet as (Leipzig, 1815), established his reputation as a theoretical astronomer . See also:

• DIE
• DIE (Fr. de, from Lat. datum, given)

Die Hauptsatze der Astronomie (1836), Die Elemente der Mechanik See also:

• DES

des Himmels (1843), may be noted amongst his other purely astronomical publications . Of more See also:

• GENERAL
• GENERAL (Lat. generalis, of or relating to a genus, kind or class)

general See also:

• INTEREST

interest, however, are his labours in pure mathematics, which appear for the most See also:

• PART

part in Crelle's See also:

• JOURNAL
• JOURNAL (through Fr. from late Lat. diurnalis, daily)

Journal from 1828 to 1858 . These papers are chiefly geometrical, many of them being developments and applications of the methods laid down in his See also:

• GREAT

great See also:

• WORK

work, Der barycentrische Calcul (Leipzig, 1827), which, as the name implies, is based upon the properties of the mean point or centre of See also:

• MASS (O.E. maesse; Fr. messe; Ger. Messe; Ital. messa; from eccl. Lat. missa)
• MASS, IN

mass (see See also:

• ALGEBRA (from the Arab. al-jebr wa'l-mugabala, transposition and removal [of terms of an equation], the name of a treatise by Mahommed ben Musa al-Khwarizmi)

ALGEBRA: Universal) . This work abounds in suggestions and foreshadowings of some of the most striking discoveries in more See also:

• RECENT

recent times—such, for example, as are contained in H . Grassmann's Ausdehnungslehre and See also:

• SIR

Sir W . R .

See also:

• HAMILTON
• HAMILTON (GRAND or ASHUANIPI)
• HAMILTON, ALEXANDER (1757-1804)
• HAMILTON, ANTHONY, or ANTOINE (1646-1720)
• HAMILTON, ELIZABETH (1758–1816)
• HAMILTON, EMMA, LADY (c. 1765-1815)
• HAMILTON, JAMES (1769-1831)
• HAMILTON, JAMES HAMILTON, 1ST DUKE OF (1606-1649)
• HAMILTON, JOHN (c. 1511–1571)
• HAMILTON, MARQUESSES AND DUKES OF
• HAMILTON, PATRICK (1504-1528)
• HAMILTON, ROBERT (1743-1829)
• HAMILTON, SIR WILLIAM
• HAMILTON, SIR WILLIAM (1730-1803)
• HAMILTON, SIR WILLIAM ROWAN (1805-1865)
• HAMILTON, THOMAS (1789-1842)
• HAMILTON, WILLIAM (1704-1754)
• HAMILTON, WILLIAM GERARD (1729-1796)

Hamilton's See also:

• QUATERNIONS

Quaternions . MSbius must be regarded as one of the leaders in the introduction of the powerful methods of See also:

• MODERN

modern projective See also:

• GEOMETRY

geometry . His Gesammelten Werke have been published in four volumes at Leipzig (1885-1887) .