stackyFACTSDuring the height of espionage, intelligence agencies attempted to develop silent acoustic weapons capable of transmitting devastating low-frequency sound waves.
During the height of espionage, intelligence agencies attempted to develop silent acoustic weapons capable of transmitting devastating low-frequency sound waves. These experimental devices were designed to induce extreme nausea, vertigo, and visual hallucinations in targets without leaving any physical trace. Though highly classified, many acoustic research projects were ultimately abandoned because the sound waves were too difficult to aim precisely.
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