Which famous person invented and patented a frequency-hopping communication system during WWII that later became foundational technology for Bluetooth, WiFi, and GPS?

Beyond their fame in entertainment, some celebrities have made surprising contributions to product innovation. These stars leveraged their unique perspectives to create solutions to problems they encountered, resulting in successful product launches and patents. Test your knowledge about these famous innovators who went beyond their public personas to develop useful products.

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Hedy Lamarr, Hollywood actress of the Golden Age
Albert Einstein, renowned theoretical physicist
Audrey Hepburn, iconic actress and humanitarian
Walt Disney, entertainment pioneer