Sir William Thompson (Lord Kelvin)

Sir William Thomson, known as Lord Kelvin, was a British physicist and engineer who made significant contributions to thermodynamics and the study of heat. He developed the concept of absolute temperature (Kelvin scale), which measures temperature from absolute zero, where all molecular motion stops. Kelvin also helped improve the design of electrical devices and worked on understanding the Earth's age and internal heat. His work laid the foundation for modern physics and engineering, influencing how we understand energy, heat transfer, and the physical limits of technology.