The Microwave Scream Inside Your Skull
The Microwave Scream Inside Your Skull
Hyper_microwave_22_gr The U.S. military bankrolled early development of a non-lethal microwave weapon that creates sound inside your head. But in the end, the gadget may be just as likely to wind up in shopping malls as on battlefields, as I report in New Scientist.
The project is known as MEDUSA – a contrived acronym for Mob Excess Deterrent Using Silent Audio. And it should not be confused with the Long Range Acoustic Device and similar gadgets which simply project sound. This one uses the so-called “microwave auditory effect”: a beam of microwaves is turned into sound by the interaction with your head. Nobody else can hear it unless they are in the beam as well.
The effect has long been a laboratory curiosity, with no application. But, over the years, the military has been intrigued. The idea (dubbed “the telepathic ray gun”) was mentioned in a 1998 US Army study, which turned up in a recent Freedom of Information Act document dump. Five years later, the Navy decided to put some R&D dollars into the project. Now, as I note on the New Scientist website, Dr. Lev Sadovnik of the Sierra Nevada Corporation has provided more details.
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