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<blockquote data-quote="NDMstang65" data-source="post: 4911175" data-attributes="member: 544576">Son of a ***** it is infrasonic, sorry about that. But how could it not have anything to deal with the subsonic speed of sound? It&#039;s totally dependent on the density of the atmosphere in which a given wave form is in that you are considering...Whether it be motor oil, water, air, salt water, milk shake, ice cube, or even a car. Whatever it may be the speed and amplitude and frequency for a given scenario will change..If the wavelength is so long, and travels so slowly that you simply can&#039;t hear it...Put a elephant in the air on dry land in the middle of a desert and play a 12Hz tone at 120dB at however many feet 1 wavelength of 12Hz is and buzz his brain a little...Put that same elephant at the 1 wave length distance away from the source in water and play at the same amplitude and you&#039;ll kill it...But which one did it get there faster in? 12Hz is 12Hz, but there&#039;s a big difference in water and air...The speed changes...it just depends on the atmosphere in which it is considered.Just the way I look at it...I could be mistaken, but I could have sworn the speed changes.</blockquote>

[QUOTE="NDMstang65, post: 4911175, member: 544576"] Son of a ***** it is infrasonic, sorry about that. But how could it not have anything to deal with the subsonic speed of sound? It's totally dependent on the density of the atmosphere in which a given wave form is in that you are considering... Whether it be motor oil, water, air, salt water, milk shake, ice cube, or even a car. Whatever it may be the speed and amplitude and frequency for a given scenario will change.. If the wavelength is so long, and travels so slowly that you simply can't hear it... Put a elephant in the air on dry land in the middle of a desert and play a 12Hz tone at 120dB at however many feet 1 wavelength of 12Hz is and buzz his brain a little... Put that same elephant at the 1 wave length distance away from the source in water and play at the same amplitude and you'll kill it... But which one did it get there faster in? 12Hz is 12Hz, but there's a big difference in water and air... The speed changes...it just depends on the atmosphere in which it is considered. Just the way I look at it...I could be mistaken, but I could have sworn the speed changes. [/QUOTE]

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