The actress who helped invent Wi-Fi!

16 Mar 2026 · 1 min

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In this brief narrated segment, Dan Novaes highlights Hedy Lamarr’s lesser‑known contribution to technology. While celebrated as a Hollywood star, Lamarr co‑invented a frequency‑hopping communication system during World War II to prevent radio‑guided torpedoes from being jammed. The military did not adopt the invention at the time, leaving it dormant for decades. Eventually, the same principle underpinned modern wireless standards such as Wi‑Fi, Bluetooth, and GPS. Novaes emphasizes that Lamarr received little recognition for her engineering work during her life, framing her as an overlooked engineer whose ideas were ahead of their era, awaiting future technological maturity.

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Hedy Lamarr was known as a Hollywood actress, but her most important work happened off-screen. During World War II, Lamarr co-invented a communication system designed to prevent radio-guided torpedoes from being jammed. The idea was called frequency hopping. Instead of sending a signal on one frequency, it rapidly switched between many. Harder to intercept, harder to block. The military did not immediately adopt it. For years, the invention sat largely unused. Decades later, the same concept became foundational for technologies like Wi-Fi, Bluetooth, and GPS. Lamarr did not receive widespread recognition during her lifetime. Her contribution was technical, ahead of its time, and overlooked. Hedy Lamarr was not just a film star; she was an engineer of possibility. Sometimes inspiration is not the role the world assigns you; it is the quiet capability you develop beyond it, waiting for the future to catch up.