John Ambrose Fleming

John Ambrose Fleming was a British electrical engineer and physicist known for inventing the vacuum tube, called the "audion," in 1904. This device amplified electrical signals, playing a crucial role in early radio and communication technology. Fleming's work helped transition from fragile, inefficient devices to more reliable electronic components, enabling advancements in radio, television, and early computers. His contributions laid the foundation for modern electronics, earning him recognition as a pioneer in electronic engineering.