Johann Christian Poggendorff

Johann Christian Poggendorff
Born	(1796-12-29)29 December 1796 Hamburg
Died	24 January 1877(1877-01-24) (aged 80) Berlin, German Empire
Known for	Poggendorff cell Poggendorff illusion Mirror galvanometer Potentiometer
Family	Valentin Rose (son in-law)

Johann Christian Poggendorff (29 December 1796 – 24 January 1877), was a German physicist born in Hamburg. By far the greater and more important part of his work related to electricity and magnetism.^[1] Poggendorff is known for his electrostatic motor which is analogous to Wilhelm Holtz's electrostatic machine. In 1841 he described the use of the potentiometer for measurement of electrical potentials without current draw.^[2]