anybody know where i can find a study/info on sub-sonic frequencies effects on the human body??
and/or WHY we do what we do???
thanx
-Drew
Replies (5)
swez on 05/16/2007 06:43:34
The US Navy/Army has been working on sub-sonic frequency and high frequency devices for many years. If you can find out a bit about that group of projects via research, am sure there is a wealth of info to mine there. (Projects Argus & HAARP, Tesla E- bomb)
http://www.copi.com/articles/guyatt/aumii.html
Also, look up what you can find about Sperm Whales. They can emit a high energy blast that renders humans and squid helpless and stunned while hunting for food or when in danger.
Swez
cplkittle on 05/16/2007 16:21:44
why we do what we do?
Sub sonic frequencies are below our hearing, and most agree that the range of human hearing begins somewhere around 20Hz.
So your span of frequencies is very narrow. Most of the military weaponary focuses on high frequencies or above. DEW weapons are microwave range, and some 'blister guns' are in the same category as well as HAARP.
There is not much that can be done with sub sonic frequencies. Just some myths like the brown note. I am sure that the pressure changes in a sealed envornment could have some affect, like maybe bubbles in the blood (the bends or caisson disease) as well as altered heart rhythm, but these are more aspects of pressure on the body rather than sound. But they go hand in hand.
As far as a research paper goes, this may be too narrow of a topic depending on the length. It will be hard to find information on sound and how it affects the body, you may have to research pressure and show how it links to sound.
newB on 05/16/2007 22:31:55
well off topic
im almost done with my 6th box
http://i40.photobucket.com/albums/e216/saxwonder05/audio/T2box1.jpg
http://i40.photobucket.com/albums/e216/saxwonder05/audio/T2box2.jpg
=D
-Drew
Pinch on 05/17/2007 11:13:46
Apparently researchers are using subsonic freqs. as a form of pest control (they've been using supersonic freqs. for a while).
http://cru.cahe.wsu.edu/CEPublications/eb1663/eb1663.html
Here is my personal favorite though:
http://science.howstuffworks.com/lrad.htm
Just a real cool idea.
Peace,
Pinch
PS Has anyone else ever been in an anechoic chamber? It is friggan weird to hear your watch tick, or to hear your stomach growl. Man, sound is cool.
Pinch on 05/17/2007 11:22:08
Oh, and low frequency radiation does not typically have enough energy to ionize particles (ie completely remove an electron from orbit) but instead is capable of excitation (temporarially bumping an electron into a higher energy state). Since energy is given off after the electron falls to its normal energy state (often in the form of light or heat), damage is still possible to a human body.
http://en.wikipedia.org/wiki/Non-ionising_radiation
Because knowing is half the battle.
Peace,
Pinch
and/or WHY we do what we do???
thanx
-Drew
Replies (5)
swez on 05/16/2007 06:43:34
The US Navy/Army has been working on sub-sonic frequency and high frequency devices for many years. If you can find out a bit about that group of projects via research, am sure there is a wealth of info to mine there. (Projects Argus & HAARP, Tesla E- bomb)
http://www.copi.com/articles/guyatt/aumii.html
Also, look up what you can find about Sperm Whales. They can emit a high energy blast that renders humans and squid helpless and stunned while hunting for food or when in danger.
Swez
cplkittle on 05/16/2007 16:21:44
why we do what we do?
Sub sonic frequencies are below our hearing, and most agree that the range of human hearing begins somewhere around 20Hz.
So your span of frequencies is very narrow. Most of the military weaponary focuses on high frequencies or above. DEW weapons are microwave range, and some 'blister guns' are in the same category as well as HAARP.
There is not much that can be done with sub sonic frequencies. Just some myths like the brown note. I am sure that the pressure changes in a sealed envornment could have some affect, like maybe bubbles in the blood (the bends or caisson disease) as well as altered heart rhythm, but these are more aspects of pressure on the body rather than sound. But they go hand in hand.
As far as a research paper goes, this may be too narrow of a topic depending on the length. It will be hard to find information on sound and how it affects the body, you may have to research pressure and show how it links to sound.
newB on 05/16/2007 22:31:55
well off topic
im almost done with my 6th box
http://i40.photobucket.com/albums/e216/saxwonder05/audio/T2box1.jpg
http://i40.photobucket.com/albums/e216/saxwonder05/audio/T2box2.jpg
=D
-Drew
Pinch on 05/17/2007 11:13:46
Apparently researchers are using subsonic freqs. as a form of pest control (they've been using supersonic freqs. for a while).
http://cru.cahe.wsu.edu/CEPublications/eb1663/eb1663.html
Here is my personal favorite though:
http://science.howstuffworks.com/lrad.htm
Just a real cool idea.
Peace,
Pinch
PS Has anyone else ever been in an anechoic chamber? It is friggan weird to hear your watch tick, or to hear your stomach growl. Man, sound is cool.
Pinch on 05/17/2007 11:22:08
Oh, and low frequency radiation does not typically have enough energy to ionize particles (ie completely remove an electron from orbit) but instead is capable of excitation (temporarially bumping an electron into a higher energy state). Since energy is given off after the electron falls to its normal energy state (often in the form of light or heat), damage is still possible to a human body.
http://en.wikipedia.org/wiki/Non-ionising_radiation
Because knowing is half the battle.
Peace,
Pinch
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