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17 Tweets 9 reads Feb 12, 2025
During WWII, Hedy Lamarr, 'the most beautiful woman in the world,' invented tech to outsmart the Nazis.
Her idea became the foundation of Wi-Fi, GPS, and more.
A Hollywood star by day, she was a secret war hero by night.
Her brilliance saved livesโ€”yet few knew her true legacy. x.com
Hedy Lamarr was called "the most beautiful woman in the world" in her day
Her smoldering beauty and exotic accent made her a Hollywood icon
She starred alongside legends like Clark Gable and Spencer Tracy
But what most don't know is that she had the brains to match her beauty x.com
Most remember her face, not her talent or her mind.
Behind the glamour was a woman yearning for intellectual fulfillment, a side of her few truly knew.
Hedy said more than once, "her beauty was her curse."
And by that she meant, people never got past her face. x.com
During WWII, soldiers voted Hedy the most desirable pinup.
Her first movie Ekstase was so scandalous that the Pope banned the film.
But she wanted more than fameโ€”she sought to make a difference.
Her passion for invention became her escape from Hollywoodโ€™s shallow world. x.com
Hedyโ€™s most famous invention was a secret communication system for torpedoes.
Using "frequency hopping," prevented signals from being intercepted.
It was a maze of wires and switchesโ€”a masterpiece of engineering.
What was a Hollywood star doing inventing something so advanced? x.com
Hedyโ€™s life was like a Hollywood scriptโ€”glamorous by day, inventive by night
She set up a drafting room at home, filled with tools and engineering books
This was her sanctuary, a hobby she rarely shared
She was a creative problem-solver, always finding solutions to challenges x.com
Hedyโ€™s inventions, like a better Kleenex box, never took off.
She also invented during that period a tablet that would fizz up and make a Coca-Cola.
Only her frequency-hopping torpedo system earned a patent in 1940. x.com
Before Hollywood, Hedy married Fritz Mandl, a wealthy arms dealer in Austria.
She absorbed his knowledge of top-secret weapon systems during their marriage.
As the Nazis rose, Hedy fled her husband and homeland, escaping to Hollywood. x.com
Hedyโ€™s Hollywood career soared, but the war in Europe was never far from her mind.
Nazi U-boats had formed a deadly blockade around England, cutting off vital supplies.
Nazi submarines were evading The Alliesย attacks by jamming radio signals. x.com
The Allies were losing, and it felt like it was the end of the war
A dinner party with composer George Antheil changed everything
Antheil, known for synchronizing pianos, inspired Hedyโ€™s idea for frequency hopping
If pianos could hop between notes, why couldnโ€™t radio signals?
Hedyโ€™s idea was simple yet brilliant: synchronize transmitter and receiver to hop frequencies.
This would make it nearly impossible for enemies to jam the signal.
The invention was viable, and ahead of its time.
But when she presented it to the Navy, they dismissed it. x.com
The Navy laughed her off: โ€œYou want to put a player piano in a torpedo? That wonโ€™t work.โ€
They told Hedy to focus on raising war bonds instead of inventing
Heartbroken, she used her celebrity to raise millions for the war effort
Once again, her beauty overshadowed her brains. x.com
Hedy quietly signed her patent over to the Navy.
She gave the technology away, hoping for acknowledgment that never came.
Decades later, frequency hopping became the foundation for Wi-Fi and GPS.
Yet, Hedyโ€™s contribution remained largely unrecognized during her lifetime. x.com
In her later years, Hedy's star slowly faded.
Botched plastic surgery left her reclusive, and she lost her confidence.
She watched as others took frequency hopping to new heights.
Her story is one of unacknowledged genius and the cost of being underestimated. x.com
More than 50 years after her patent, Hedy finally received some recognition.
She was awarded for her invention but didnโ€™t show up to accept it.
By then, she had become a recluse, her life marked by loneliness.
Her obituaries focused on her beauty, leaving out her inventions. x.com
Hedy Lamarr died alone in Florida at 86.
Her legacy is a reminder that brilliance often goes unrecognized in its time.
She proved beauty and brains are not mutually exclusive.
Today, her invention powers the technology we rely on dailyโ€”a testament to her beautiful mind. x.com
At Usetrace, we automate functional end-to-end UI testing on website apps.
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