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The Passive Bug: Leon Theremin and the Great Seal. Microwaves, Espionage, and the Battery-Less Listening Device That Fooled the US Embassy for Seven Years
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- Nombre de pages191
- FormatePub
- ISBN978-3-565-46664-1
- EAN9783565466641
- Date de parution29/05/2026
- Protection num.pas de protection
- Taille878 Ko
- Infos supplémentairesepub
- ÉditeurEmphaloz Publishing House
Résumé
How did the Soviet Union manage to listen to the most highly classified, top-secret conversations inside the United States Ambassador's private study in Moscow for seven consecutive years, without ever hiding a microphone, a power wire, or a battery in the room? The Great Seal Bug, invented by the musical genius Leon Theremin, was a masterpiece of impossible engineering.
In 1945, Soviet schoolchildren presented the US Ambassador with a beautiful, hand-carved wooden replica of the Great Seal of the United States as a gesture of friendship.
Inside the wood was a tiny, utterly simple metallic antenna and a silver membrane. Because it had no power source and emitted no signal of its own, American security sweeps detected absolutely nothing. The bug only functioned when Soviet spies in a building across the street aimed a specific, high-frequency microwave beam at the plaque. The sound waves of the Ambassador's voice vibrated the membrane, modulating the reflected beam and broadcasting every word back to the KGB. This fascinating historical narrative deconstructs the golden age of Cold War espionage.
It explores the tragic, coerced life of inventor Leon Theremin, the eventual accidental discovery of the bug by a British radio operator, and the sheer elegance of passive surveillance. Discover the ultimate Trojan Horse. The story of the Great Seal Bug proves that the most brilliant and devastating technological espionage is often hidden in absolute simplicity.
Inside the wood was a tiny, utterly simple metallic antenna and a silver membrane. Because it had no power source and emitted no signal of its own, American security sweeps detected absolutely nothing. The bug only functioned when Soviet spies in a building across the street aimed a specific, high-frequency microwave beam at the plaque. The sound waves of the Ambassador's voice vibrated the membrane, modulating the reflected beam and broadcasting every word back to the KGB. This fascinating historical narrative deconstructs the golden age of Cold War espionage.
It explores the tragic, coerced life of inventor Leon Theremin, the eventual accidental discovery of the bug by a British radio operator, and the sheer elegance of passive surveillance. Discover the ultimate Trojan Horse. The story of the Great Seal Bug proves that the most brilliant and devastating technological espionage is often hidden in absolute simplicity.