Hedy Lamarr
Actress and co-inventor of a radio guidance system.
via Wikipedia: Hedy Lamarr · see source
Hedy Lamarr was an Austrian and American actress and inventor, recognized both for her successful film career and for co-inventing a radio guidance system during World War II. Born Hedwig Eva Maria Kiesler in Vienna, she was the only child of a father who worked as a deputy director of a bank and a mother who was a pianist from Budapest. Her father, from a Galician-Jewish family, often explained the workings of devices to her on walks, sparking an early interest in technology. She also showed an early passion for acting, winning a beauty contest in Vienna at age twelve. After taking acting classes, she forged a note from her mother to get hired as a script girl at a film studio, eventually securing small roles in comedies. A producer brought her to Berlin, where she met a Russian theatre producer who cast her in his film debut. She then starred in the internationally famous film *Ecstasy* at age eighteen, playing a neglected young wife. The film was notorious for showing her face in orgasm and brief nudity, which she later claimed was done without her full knowledge. It won an award at the Venice Film Festival but was banned in America and Germany. After a successful stage role in Vienna, she attracted the attention of Friedrich Mandl, a wealthy Austrian arms merchant with ties to Mussolini and Hitler. Despite her Jewish parents’ disapproval, she married him at eighteen. Mandl was extremely controlling and objected to her acting career. She eventually fled from him, secretly moving to Paris. Traveling to London, she met Louis B. Mayer, who offered her a Hollywood contract. She became a star with the romantic drama *Algiers* and achieved further success with *Boom Town* and *White Cargo*. Her most successful film was the religious epic *Samson and Delilah*. She also acted on television before her final film in 1958, and received a star on the Hollywood Walk of Fame in 1960. At the start of World War II, she co-invented a radio guidance system for Allied torpedoes with composer George Antheil. Their "Secret Communication System" used spread spectrum and frequency hopping to prevent Axis radio jamming. Though patented, the technology was not used operationally until 1962, after the patent had expired. Frequency hopping, which existed before their patent, became foundational for spread spectrum communications used in secure wireless networking, including Bluetoo
- field
- Actress, Inventor
- nationality
- Austrian, American
- known_for
- Film stardom; co-invention of a radio guidance system using spread spectrum and frequency hopping
Verified Timeline
Quick Facts
- Birth Name
- Hedwig Eva Maria Kiesler
- Birth Date
- mf=yes · 1914 · 11 · 9
- Birth Place
- Vienna, Austria-Hungary
- Citizenship
- Austria (until 1938) / Stateless (1938–1953) / US (from 1953)
- Death Date
- mf=yes · 2000 · 1 · 19 · 1914 · 11 · 9
- Death Place
- Casselberry, Florida, US
- Occupation
- Actress · inventor
- Years Active
- 1930–1958
- Children
- 3
Facts from the source article.
Lore & Background
Her father, a bank director, and her mother, a pianist, raised her in Vienna as an only child. From a young age, she was drawn to theater and film, and at twelve she won a local beauty contest. Her father nurtured her curiosity about technology by explaining how mechanical devices worked during their walks. After a brief early film career in Europe, including the controversial erotic drama *Ecstasy*, she fled her first husband, an arms merchant with ties to fascist leaders, and secretly moved to Paris. She then traveled to London, where she met Louis B. Mayer and secured a Hollywood contract. Lamarr became a major film star with *Algiers* (1938), followed by successes in *Boom Town* (1940) and *White Cargo* (1942). Her most commercially successful film was the religious epic *Samson and Delilah* (1949). Beyond acting, during World War II she co-invented a radio guidance system for torpedoes that used spread spectrum and frequency hopping to prevent enemy jamming. Though the patent expired before military adoption in 1962, this technology later became foundational for secure wireless systems like Bluetooth and early Wi-Fi. She received a star on the Hollywood Walk of Fame in 1960 and made her final film appearance in 1958.
Reader's Guide
At the beginning of World War II, along with composer George Antheil, Lamarr co-invented a radio guidance system for Allied torpedoes that used spread spectrum and frequency hopping technology to defeat the threat of radio jamming by the Axis powers. This approach, conceptualized as a 'Secret Communication System', was intended to provide secure, jam-resistant communication for weapon guidance by spreading the signal across multiple frequencies. Frequency hopping, which existed and was utilized before the Lamarr–Antheil patent, is a foundational technology for spread spectrum communications. Its principles are utilized for secure wireless networking, including Bluetooth and early versions of Wi-Fi, which use variants of spread spectrum to protect data from interception and interference. Lamarr's legacy thus extends beyond her film career into foundational contributions to modern wireless communication.
Did You Know?
- Lamarr co-invented a radio guidance system for Allied torpedoes during World War II.
- Her invention used spread spectrum and frequency hopping to defeat radio jamming.
- Frequency hopping principles are used in Bluetooth and early versions of Wi-Fi.
Common Misconceptions (Editorial)
Some people think Hedy Lamarr was only an actress, but she was also an inventor who co-invented a radio guidance system using spread spectrum and frequency hopping. Others mistakenly believe her invention was unrelated to modern technology, when in fact frequency hopping principles are used in Bluetooth and early versions of Wi-Fi.
Why It Matters (Editorial)
Hedy Lamarr endures as a symbol of underestimated genius, proving that creativity and technical brilliance can thrive outside expected fields. Her wartime invention not only aimed to protect Allied torpedoes but also laid groundwork for wireless communication technologies we rely on today, reminding us that innovation often comes from unexpected sources.
Notable Quotes (Wikiquote)
"Any girl can be glamorous. All you have to do is stand still and look stupid." — Hedy Lamarr "Quotes of Lamarr from the New York Times article "Would You Believe I Was Once A Famous Star? It's the Truth!" — Hedy Lamarr "First he married Joan Bennett, then he married me, then he married Myrna Loy. I had a wonderful first love affair. I like men. Gene Markey was the only civilized man. He used to spit into a spittoon." — Hedy Lamarr "The most horrible whores are famous. I did what I did for love. The others did it for money." — Hedy Lamarr
Frequently Asked Questions
What did Hedy Lamarr invent?
She co-created a radio guidance system during World War II that relied on spread spectrum and frequency hopping technology. The system was designed to protect torpedo radio signals from enemy jamming.
Why is Hedy Lamarr important?
She proved that a celebrated film star could also make a serious technical contribution to engineering and defense. Her frequency-hopping concept remains a landmark in the history of wireless communication.
What was Hedy Lamarr's role in World War II?
She turned her inventive mind toward the war effort by co-developing a guidance system that used frequency hopping to shield radio-controlled torpedoes from interference.
More in Great Inventors 1-22
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