What is BROWN NOTE? What does BROWN NOTE mean? BROWN NOTE meaning, definition & explanation

What is BROWN NOTE? What does BROWN NOTE mean? BROWN NOTE meaning - BROWN NOTE definition - BROWN NOTE explanation.

Source: Wikipedia.org article, ad...

What is BROWN NOTE? What does BROWN NOTE mean? BROWN NOTE meaning - BROWN NOTE definition - BROWN NOTE explanation.

Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license.

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The brown note is a hypothetical infrasonic frequency that would cause humans to lose control of their bowels due to resonance. Attempts to demonstrate the existence of a "brown note" using sound waves transmitted through air have failed.

The name is a metonym for the common color of human feces. Frequencies supposedly involved are between 5 and 9 Hz, which is below the lower frequency limit of human hearing. High power sound waves below 20 Hz are felt in the body, not heard by the ear as sound.

Jรผrgen Altmann of the Dortmund University of Technology, an expert on sonic weapons, has said that there is no reliable evidence for nausea and vomiting caused by infrasou...