Wilhelm Gottlieb Hankel

Wilhelm Gottlieb Hankel (born May 17, 1814 in Ermsleben , † February 17, 1899 in Leipzig ) was a German physicist .

Hankel studied at the University of Halle . In 1840 he received his habilitation in physics and chemistry . In 1847 he received an extraordinary professorship. In Halle he was accepted into the Masonic lodge "To the three swords" in 1839. From 1849 to 1889 he worked as a full professor of physics in Leipzig . Since 1849 he was a full member of the Royal Saxon Society of Sciences . In 1864 he was elected a corresponding member of the Göttingen Academy of Sciences .

Hankel was particularly concerned with the thermoelectric properties of crystals and demonstrated that crystals with poorly electrically conductive minerals become electrical through temperature changes, the hemimorphic ones with opposite poles at the ends of the hemimorphic axes, the symmetrical ones with poles of the same name at the ends of the same axes the two polarities are distributed on the different axes. He discovered the fluorspar the photovoltaic cell . Further investigations dealt with the thermoelectric currents between metals and conductive minerals, with the electrical behavior of the flame , with the electrical phenomena that occur during gas development, and with the electrical currents that arise when the light acts on metals immersed in water and salt solutions, and with the magnetic ones Effect of the discharge system.

Wilhelm Gottlieb Hankel died on February 17, 1899 in Leipzig.

Web links

Overview of the courses of Wilhelm Gottlieb Hankel at the University of Leipzig (summer semester 1850 to winter semester 1886)
Wilhelm Gottlieb Hankel in the professorial catalog of the University of Leipzig

Individual evidence

↑ Holger Krahnke: The members of the Academy of Sciences in Göttingen 1751-2001 (= Treatises of the Academy of Sciences in Göttingen, Philological-Historical Class. Volume 3, Vol. 246 = Treatises of the Academy of Sciences in Göttingen, Mathematical-Physical Class. Episode 3, vol. 50). Vandenhoeck & Ruprecht, Göttingen 2001, ISBN 3-525-82516-1 , p. 102.

personal data
SURNAME	Hankel, Wilhelm Gottlieb
BRIEF DESCRIPTION	German physicist
DATE OF BIRTH	May 17, 1814
PLACE OF BIRTH	Experience
DATE OF DEATH	February 17, 1899
Place of death	Leipzig

[1] Holger Krahnke: The members of the Academy of Sciences in Göttingen 1751-2001 (= Treatises of the Academy of Sciences in Göttingen, Philological-Historical Class. Volume 3, Vol. 246 = Treatises of the Academy of Sciences in Göttingen, Mathematical-Physical Class. Episode 3, vol. 50). Vandenhoeck & Ruprecht, Göttingen 2001, ISBN 3-525-82516-1 , p. 102.