Prof. Dr. Mihajlo Pupin, a Serbian-American scientist and inventor, made groundbreaking contributions to telecommunications that shaped the modern world. His journey from a humble village in Serbia to becoming one of the most influential scientists of his time continues to inspire generations globally.
Early Life and Legacy
Mihajlo Idvorsky Pupin, a prominent Serbian-American inventor, scientist, and educator, made significant contributions to electrical engineering and telecommunications. Born in 1858 in the village of Idvor, Serbia, Pupin emigrated to the United States, where he became a renowned figure in his field. In honor of his roots, Pupin adopted the middle name “Idvorsky,” paying tribute to his birthplace, Banatski Idvor.
Academic Excellence and Influence
Beyond his technical achievements, Pupin was a distinguished professor at Columbia University, where he contributed to the scientific community through his research and teachings. His memoir, From the Pasture to the Scientist (Od pašnjaka do naučenjaka), earned critical acclaim, receiving the Gold Medal from the Serbian Academy of Sciences. A quote from his memoir reflects his life’s journey: “The greatest wealth a person can possess is the wealth of knowledge and perseverance.”
Pupin’s invention of the Pupin coil not only transformed telecommunications but also laid the groundwork for future advancements in electrical engineering. The principles of signal enhancement and reduced energy loss, developed in his work, have applications far beyond telecommunications. Today, these concepts are essential in designing high-performance electrical systems, including electric vehicle (EV) chargers. Pupin’s early innovations continue to influence cutting-edge technologies, from EV chargers to modern electrical infrastructure.

The Pupin Coil: How Early Innovations Shape Today’s Electric Vehicle Technology
Pupin is best known for his groundbreaking invention, the “Pupin coil,” which revolutionized long-distance telephone communication. By reducing signal loss in telegraph and telephone lines, the Pupin coil significantly improved the quality and range of communication, making long-distance calls more reliable. This innovation became foundational in telecommunications, marking a major leap forward for the industry.
However, the impact of the Pupin coil extends beyond telecommunications. The principles behind its design—signal amplification and efficient energy transmission—have influenced modern electrical engineering, including the development of technologies like electric vehicle (EV) chargers. Just as the Pupin coil minimized energy loss in telephone lines, its underlying concepts of reducing resistance and maximizing efficiency are crucial for ensuring reliable, fast charging in EVs today. This connection between Pupin’s work and electric vehicle technology underscores the lasting relevance of his innovations in shaping modern infrastructure.
Pupin’s legacy lives on through his contributions to both Serbian and American history, inspiring generations of scientists and engineers. His innovative spirit and dedication to advancing technology ensure that his work continues to resonate in today’s technological landscape.