Introduction William Thomson, better known as Lord Kelvin, was one of the most influential scientists of the 19th century. His groundbreaking work in thermodynamics, electrical engineering, and physics laid the foundation for modern science and technology. From formulating the Kelvin scale of temperature to contributing to the success of the transatlantic telegraph cable, Kelvin’s genius shaped the world we live in today. This biography explores his early life, remarkable career, personal struggles, and enduring legacy—revealing the man behind the scientific legend. Early Life & Background Born on June 26, 1824, in Belfast, Ireland, William Thomson…