10. Hedy Lamarr
Hedy Lamarr, renowned Hollywood actress, was also a brilliant inventor whose work changed the course of technology. Alongside composer George Antheil, she co-created a frequency-hopping communication system designed to prevent the jamming of Allied torpedoes. Though unheralded in her lifetime, Lamarr’s pioneering technology became the foundation for modern Wi-Fi and Bluetooth. Her legacy reminds us that ingenuity knows no boundaries.
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