Danish physicist, he discovered the diversion of a magnetic needle by electric current, becoming the founder of the rule of electromagnetism. DS, in his native language, signed “H. Oersted,” one page, 8.5 x 11, Royal Danish society of the Sciences letterhead, September 1, 1847. Oersted transmits academic publications to the secretary of the Gottingen Royal Society of Sciences. In fine condition, with a bisecting horizontal fold, several ink notations, and scattered foxing. COA John Reznikoff/PSA/DNA and R&R COA.
