The scientist known for his groundbreaking work on electricity is Thomas Edison. He was an American inventor and businessman who played a significant role in the development of electric light and power systems. Edison is often credited with the invention of the practical electric light bulb, which revolutionized the way people live and work. Beyond the light bulb, he also contributed to the creation of the phonograph and numerous other devices that transformed modern technology. His dedication to experimentation and innovation laid the foundation for the electrification of industries and homes across the globe.