The Birth of Spy Tech: From the ‘Detectifone’ to a Bugged Martini
source: wired.com | image: pixabay.com
The urge to snoop is as old as time—and by the 1950s, the electronic listening invasion had begun.
This is excerpted from The Listeners: A History of Wiretapping in the United States by Brian Hochman published by Harvard University Press.
EAVESDROPPING TECHNOLOGIES OF various sorts have been around for centuries. Prior to the invention of recorded sound, the vast majority of listening devices were extensions of the built environment. Perhaps nodding to the origins of the practice (listening under the eaves of someone else’s home, where rain drops from the roof to the ground), early modern architects designed buildings with structural features that amplified private speech. The Jesuit polymath Athanasius Kircher devised cone-shaped ventilation ducts for palaces and courts that allowed the curious to overhear conversations. Catherine de’ Medici is said to have installed similar structures in the Louvre to keep tabs on individuals who might have plotted against her. Architectural listening systems weren’t always a product of intentional design. Domes in St. Paul’s Cathedral in London and the US Capitol building are inadvertent “whispering galleries” that enable people to hear conversations held on the other side of the room. Archaeologists have discovered acoustical arrangements like these dating back to 3000 BC. Many were used for eavesdropping.
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