Hans Christian Ørsted, a Danish physicist, made a groundbreaking discovery in 1820 that electricity and magnetism are linked, a finding that laid the foundation for electromagnetism. During a lecture, Ørsted observed a compass needle deflect near a current-carrying wire, revealing that electric currents create magnetic fields. This discovery inspired advancements by scientists like André-Marie Ampère and Michael Faraday, leading to the development of modern electric technologies such as motors and generators. Beyond his scientific contributions, Ørsted founded the Technical University of Denmark and was also a poet and philosopher. His work symbolized the unity of science and philosophy and continues to impact physics, engineering, and our understanding of nature's interconnected forces.

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