International Exposition of Electricity

，1869年转为纯粹数学教授。在此期间，他培养出了索菲斯·李等数学家。 1881年9月，国际电力博览会（英语：International Exposition of Electricity）在巴黎召开。卡尔·皮耶克尼斯作为挪威代表，与维尔纳·冯·西门子、爱迪生、贝尔和威廉·汤姆森等著名人物受邀参加

Ampere: Pioneer of Electricity & Magnetism （页面存档备份，存于互联网档案馆） at the National High Magnetic Field Laboratory Ampère and the history of electricity （页面存档备份，存于互联网档案馆）

2001，第79頁. Barrett, John Patrick. Electricity at the Columbian Exposition; Including an Account of the Exhibits in the Electricity Building, the Power Plant in

House of Representatives. (2008). "Economic and Other Implications of Switching from Coal to Natural Gas at the Capitol Power Plant and at Electricity-Generating

(Edmund Taylor). A history of the theories of aether and electricity : from the age of Descartes to the close of the nineteenth century (1910). Internet