The document discusses Hedy Lamarr's contributions and life experiences. It provides a brief biography of Lamarr, noting her early life and career as an actress. It then explains her collaboration with composer George Antheil to develop a spread spectrum technique for radio guidance of torpedoes during World War II. This became the basis for modern technologies like Bluetooth and Wi-Fi. The summary concludes by mentioning Lamarr's later life, including her film career and marriages, before dying in 2000 still communicating via cell phone technology that benefited from her invention.