Hedy Lamarr. The Most Beautiful Woman in Science

Written by Margot Cleverly

A Hollywood star whose beauty captivated millions of viewers simultaneously worked on wireless communication technology used today in smartphones worldwide. Hedwig Eva Maria Kiesler changed her name to Hedy Lamarr, but her contribution to the development of modern technologies remained unknown to the general public for decades.

Viennese Childhood and Scandalous Debut

Hedwig came into the world in Vienna in November 1914 as the only child of banker Emil Kiesler and pianist Gertrud Lichtwitz. Her parents came from assimilated Jewish backgrounds, though her mother adopted Catholicism and the daughter grew up without connections to Judaic tradition. Young Hedwig took acting lessons from the famous Berlin director Max Reinhardt, who recognized her stage talent.

The 1933 film Ecstasy directed by Gustav Machatý brought her international notoriety and condemnation simultaneously. The Czechoslovak-Austrian production contained nudity scenes that caused scandal in conservative circles. The controversial role permanently marked the young actress’s public image.

Marriage to an Arms Dealer

Friedrich Mandl, a wealthy Austrian ammunition dealer, married Hedwig in 1933 and proved to be a pathologically jealous husband. He tried to buy up all copies of Ecstasy to destroy the compromising film material. His business contacts included representatives of fascist regimes, including Benito Mussolini.

His wife accompanied him during meetings concerning military transactions and weapons systems. She listened to discussions about torpedo guidance technologies and other advanced military solutions. This knowledge proved invaluable when years later she engaged in work on her own invention.

Her escape from her husband in 1937 brought her to London, where she began a new life. Mandl represented everything she longed to break free from – control, isolation, and connections with regimes that would soon plunge Europe into war. Freedom opened the path to Hollywood before her.

Metamorphosis into MGM Star

Louis B. Mayer, head of MGM studios, met the Viennese actress in London and offered her a contract on unfavorable terms. She rejected the offer but boarded the same transatlantic liner SS Normandie on which Mayer was sailing to America. During the voyage, she negotiated much better terms of cooperation with the powerful film producer.

Mayer suggested changing her name to Hedy Lamarr, referencing silent film star Barbara La Marr. The new pseudonym was meant to cut her off from the scandalous reputation associated with the European film. The studio crafted her as the embodiment of beauty, promoting her with the slogan about the world’s most beautiful woman.

Algiers from 1938 alongside Charles Boyer secured her immediate success in America. Subsequent MGM productions strengthened her position – Boom Town with Clark Gable and Spencer Tracy in 1940, then Ziegfeld Girl with James Stewart a year later. Her greatest commercial triumph came with the role in Cecil B. DeMille’s biblical epic Samson and Delilah from 1949.

Invention Born at Hollywood Party

The outbreak of war in Europe stirred in Lamarr the desire to use knowledge gained alongside her former husband. She knew that radio guidance of torpedoes had a fundamental weakness – the enemy could easily jam the control signal. At a party in film circles, she met avant-garde composer George Antheil, who experimented with synchronizing multiple self-playing pianos called player pianos.

Together they developed a frequency-hopping system where transmitter and receiver synchronously change transmission channels. The concept used 88 different frequencies corresponding to piano keys, with synchronization ensured by identical perforated paper tapes working like rolls in player pianos. The mechanism would prevent the enemy from intercepting or disrupting the torpedo guidance signal.

They received patent number 2,292,387 in August 1942 under the names Hedy Kiesler Markey and George Antheil – the actress was then using her second husband Gene Markey’s surname. Lamarr transferred the patent free of charge to the National Inventors Council, offering it to the Navy. Military officials rejected the invention, deeming the paper roll mechanism too complicated for implementation in torpedoes.

From War Bonds to Satellite Technology

Instead of developing her system, the Navy suggested using the actress’s fame to promote war bonds. Lamarr engaged in the campaign, raising 7 million dollars during one evening for the war effort. The patent expired unused in 1959, but the story didn’t end there.

Engineers from Sylvania Electronic Systems found the patent in 1957 during work on a spread spectrum system. They replaced mechanical rolls with transistor electronics, creating a practical implementation of Lamarr and Antheil’s concept. American ships utilized this technology during the Cuban Missile Crisis in 1962.

The FHSS principle became the foundation of modern wireless communication in GPS, Bluetooth, and Wi-Fi standards. Lamarr’s film career faded in the fifties, with The Female Animal from 1958 being her last film. Her autobiography Ecstasy and Me appeared in 1966, written by a ghostwriter.

Lawsuits and Solitary Years

The actress sued the autobiography’s publisher, claiming the book contained distorted and fabricated information, but lost the case in court. Arrests on charges of petty shoplifting occurred in 1966 and 1991. Six marriages ended in divorce, and she spent her final years in isolation away from Hollywood.

Recognition for her inventive work came late in life – the Electronic Frontier Foundation awarded her and Antheil the Pioneer Award in 1997. The National Inventors Hall of Fame admitted her to the ranks of inventors in 2014. She died in Casselberry, Florida in January 2000, and her ashes rest at the Central Cemetery in Vienna.

SELECTED BIBLIOGRAPHY:

Margot Cleverly

+ posts

Margot's journey into women's history began with a box of forgotten letters in a Cambridge archive – suffragettes whose voices had been silenced for over a century. Since then, she's been on a mission to uncover the stories history overlooked.

What she writes about: Queens who ruled from the shadows. Scientists whose male colleagues took credit. Revolutionaries who risked everything. But also ordinary women – those who survived wars, raised families through upheaval, and shaped their communities in ways no one bothered to record.

Margot turns historical figures into real people. She writes with warmth and detail, making centuries-old stories feel surprisingly relevant. Rigorous research meets accessible storytelling – no dusty academic jargon, just compelling narratives backed by solid facts.

When she's not writing, you'll find her in regional archives, collecting oral histories, or visiting sites connected to the women she writes about.