Sound can exist even without a material medium through technological devices like contact mics and hydrophones, showcasing its physical nature beyond human perception.
Sound can be produced even in the absence of a material medium through technologies like contact mics and hydrophones that can capture vibrations otherwise inaudible to the human ear. For example, sound waves can be present in objects such as a vibrating table even if they are not heard by the human ear.
However, these vibrations may not be perceived as sound unless they interact with a medium or are detected by specialized devices. This demonstrates that sound is a physical phenomenon that can exist independently of human perception.
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