GUSTAV HEINRICH See also:

• GUSTAV HEINRICH WIEDEMANN (1826-1899)

WIEDEMANN (1826-1899)  , See also:

• GERMAN
• GERMAN, DUTCH AND SCANDINAVIAN

German physicist, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born at See also:

• BERLIN
• BERLIN, CONGRESS AND TREATY OF
• BERLIN, ISAIAH (1725–1799)

Berlin on the 2nd of See also:

• OCTOBER

October 1826 . After attending the See also:

• COLOGNE (Ger. Koln, or officially, since 1900, Coln)

Cologne gymnasium, he entered the university of Berlin in 1844, and took his See also:

• DOCTOR (Lat. for " teacher ")

doctor's degree there three years later . His thesis on that occasion was devoted to a question in organic See also:

• CHEMISTRY
• CHEMISTRY (formerly "chymistry"; Gr. xvµela; for derivation see ALCHEMY)

chemistry, for he held the See also:

• OPINION (Lat. opinio, from opinari, to think)

opinion that the study of chemistry is an indispensable preliminary to the pursuit of physics, which was his ultimate aim . In Berlin he made the acquaintance of H. von See also:

• HELMHOLTZ, HERMANN LUDWIG FERDINAND VON (1821-1894)

Helmholtz at the See also:

• HOUSE
• HOUSE (O. Eng. hiss, a word common to Teutonic languages, cf. Dut. huis, Ger. Haus; in Gothic it is only found in gudhiss, a temple; it may be ultimately connected with the root of " hide," conceal)

house of H . G . See also:

• MAGNUS, HEINRICH GUSTAV (1802-1870)

Magnus, and was one of the founders of the Berlin See also:

• PHYSICAL

Physical Society . In 1854 he See also:

• LEFT

left Berlin to become See also:

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

professor of physics in See also:

• BASEL (Fr. Bale)
• BASEL (Fr. Belle, but Basle is a wholly erroneous form; Ital. Basilea)
• BASEL, CONFESSION OF
• BASEL, COUNCIL OF

Basel University, removing nine years afterwards to See also:

• BRUNSWICK
• BRUNSWICK (Ger. Braunschweig)
• BRUNSWICK, KARL WILHELM FERDINAND, DUKE OF (1735-18o6)

Brunswick See also:

• POLYTECHNIC (Gr. aroWus, many, and rEXvn, an art)

Polytechnic, and in 1866 to See also:

• KARLSRUHE, or CARLSRUHE

Karlsruhe Polytechnic . In 1871 he accepted the See also:

• CHAIR (in. Mid. Eng. chcere, through O. Fr. chaire or chaiere, from Lat. cathedra, later caledra, Gr. xaOi3pa, seat, cf. "cathedral"; the modern Fr. form chaise, a chair, has been adopted in English with a particular meaning as a form of carriage; chaire

chair of physical chemistry at See also:

• LEIPZIG

Leipzig . The See also:

• ATTENTION (from Lat. ad-tendo, await, expect; the condition of being " stretched " or " tense ")

attention he had paid to chemistry in the earlier See also:

• PART

part of his career enabled him to hold his own in this position, but he found his See also:

• WORK

work more congenial when in 1887 he was transferred to the professorship of physics . He died at Leipzig on the 24th of See also:

• MARCH
• MARCH (1) (from Fr. marcher, to walk; the earliest sense in French appears to be " to trample," and the origin has usually been found in the Lat. marcus, hammer; Low Lat. marcare, to hammer; hence to beat the road with the regular tread of a soldier: cf.
• MARCH, AUZIAS (c. "1395-1458)
• MARCH, EARLS OF
• MARCH, FRANCIS ANDREW (1825– )

March 1899 . His name is probably most widely known for his See also:

• LITERARY

literary work . In 18i7 he undertook the editorship of the Annalen der Physik and Chemie in See also:

• SUCCESSION (Lat. successio, from succedere, to follow after)

succession to J .

C . See also:

• POGGENDORFF, JOHANN CHRISTIAN (1796-1877)

Poggendorff, thus starting the See also:

• SERIES (a Latin word from serere, to join)

series of that scientific periodical which is familiarly cited as Wied . See also:

• ANN

Ann . Another monumental work for which he was responsible was See also:

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

Die Lehre von der Elektricitht, or, as it was called in the first instance, Lehre von Galvanismus and Elektromagnetismus, a See also:

• BOOK

book that is unsurpassed for accuracy and comprehensiveness . He produced the first edition in 186r, and a See also:

• FOURTH

fourth, revised and enlarged, was only completed ashort See also:

• TIME (0. Eng. Lima, cf. Icel. timi, Swed. timme, hour, Dan. time; from the root also seen in " tide," properly the time of between the flow and ebb of the sea, cf. O. Eng. getidan, to happen, " even-tide," &c.; it is not directly related to Lat. tempus)
• TIME, MEASUREMENT OF
• TIME, STANDARD

time before his See also:

• DEATH

death . But his See also:

• ORIGINAL

original work was also important . His data for the thermal conductivity of various metals were for See also:

• LONG, GEORGE (1800-1879)
• LONG, JOHN DAVIS (1838– )

long the most trustworthy at the disposal of physicists, and his determination of the See also:

• OHM, GEORG SIMON (1787-1854)

ohm in terms of the specific resistance of See also:

• MERCURY
• MERCURY (MERCU1uus)
• MERCURY (symbol Hg, atomic weight = 2oo)

mercury showed remarkable skill in quantitative See also:

• RESEARCH (O. Fr. recerche, from recercher, re- and cercer, mod. chercher, to search; Late Lat. circare, to go round in a circle, to explore)

research . He carried out a number of magnetic investigations which resulted in the See also:

• DISCOVERY

discovery of many interesting phenomena, some of which have been,rediscovered by others; they related among other things to the effect of See also:

• MECHANICAL

mechanical See also:

• STRAIN (through O. Fr. straindre, estraindre, mod. i treindre, from Lat. stringere, to draw tight, related to stress, stretch, string, &c.)

strain on the magnetic properties of the magnetic metals, to the relation between the chemical See also:

• COMPOSITION
• COMPOSITION (Lat. compositio, from componere, to put together)

composition of See also:

• COMPOUND
• COMPOUND (from Lat. componere, to combine or put together)

compound bodies and their magnetic properties, and to a curious See also:

• PARALLELISM, PSYCHOPHYSICAL

parallelism between the See also:

• LAWS

laws of torsion and of See also:

• MAGNETISM
• MAGNETISM, TERRESTRIAL

magnetism . He also investigated See also:

• ELECTRICAL
• ELECTRICAL (or ELECTROSTATIC) MACHINE

electrical endosmosis and the electrical resistance of electrolytes . His eldest son, Eilhard See also:

• ERNST, HEINRICH WILHELM (1814–1865)

Ernst Gustav, born at Berlin on the 1st of See also:

• AUGUST (originally Sextilis)

August 1852, became professor of physics at See also:

• ERLANGEN

Erlangen in 1886, and his younger son, See also:

• ALFRED

Alfred, born at Berlin on the 18th of See also:

• JULY

July 1856, was appointed to the extraordinary professorship of Egyptology at See also:

• BONN

Bonn in 1892 .