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OfflineSneezingPenis
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Resonant frequencies
    #3828792 - 02/24/05 07:52 PM (12 years, 1 month ago)

I posted the equivalent to this in the MAaL forum about a story i am writing, but i thought this forum would have more fun with it.....

Everything has a resonant frequency, from glass to your colon. There is a note called "the brown note" which is 4hz at 160 dB , which will cause your colon to spasm and you will shit yourself. Now what I was thinking along these lines was other resonant frequencies of other organs...like the Pineal gland, which secretes DMT. If we could find its resonant frequency and cause it to "spasm" or whatever will happen, there is a chance that DMT would be released into the body inducing a real hard core trip.... have at it.


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Invisiblez@z.com
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Re: Resonant frequencies [Re: SneezingPenis]
    #3828971 - 02/24/05 08:28 PM (12 years, 1 month ago)

I remember when I was living in a dorm and my roommate found a frequency that would make the entire building shake and it was very difficult to figure out exactly where the sound was coming from. Good times.


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"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." - C.S. Lewis

"I would rather be exposed to the inconveniencies attending too much liberty than to those attending too small a degree of it." - Thomas Jefferson


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InvisibleDNKYD
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Re: Resonant frequencies [Re: SneezingPenis]
    #3829709 - 02/24/05 10:13 PM (12 years, 1 month ago)

Mythbusters did a thing on the "brown note" and apparently it's just a myth.


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OfflineSneezingPenis
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Re: Resonant frequencies [Re: DNKYD]
    #3829909 - 02/24/05 10:38 PM (12 years, 1 month ago)

Mythbusters only did it at 140 dB if i remember correctly. It needs to be done at 160 dB.


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OfflineSeussA
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Re: Resonant frequencies [Re: SneezingPenis]
    #3831796 - 02/25/05 07:49 AM (12 years, 1 month ago)

> It needs to be done at 160 dB.

At 160 dB, it won't matter what frequency you use...

:rolleyes:


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InvisibleDNKYD
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Re: Resonant frequencies [Re: Seuss]
    #3832322 - 02/25/05 11:46 AM (12 years, 1 month ago)

They did it at 150 dB on the show, I think. So loud that if your eardrums are not protected they will be gone for good in a second.


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OfflineSeussA
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Re: Resonant frequencies [Re: DNKYD]
    #3832528 - 02/25/05 12:58 PM (12 years, 1 month ago)

> They did it at 150 dB

The dB scale is logrithimic, which means it increases faster the larger the number. The difference between 30 db and 40 db is very small compared to the difference between 150 db and 160 db. A 160 db of sound contains a lot of energy... enough to levitate objects using the compression waves producing the sound. (I have a NASA reference to levitating objects using sound if anybody is interested... and if I can find it again.)


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InvisibleDNKYD
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Re: Resonant frequencies [Re: Seuss]
    #3832615 - 02/25/05 01:22 PM (12 years, 1 month ago)

Yeah, post the link if you can find it. That seems pretty interesting.


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OfflineSeussA
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Re: Resonant frequencies [Re: DNKYD]
    #3832675 - 02/25/05 01:35 PM (12 years, 1 month ago)

Do a search for Servodrive, NASA, acoustic levitiation, etc...

http://www.prosoundweb.com/chat_psw/transcripts/danley.shtml:
Quote:

Charlie Hughes: What sort of power output & freq for the levitation, and what mass were you supporting?

Tom: Most of the levitation sources that I made ran at 21 KHz - a typical source that could produce a sound pressure of 165 dB @ 12 inches. An array of six can produce in excess of 175 dB at the center - which is enough to light a cigarette with acoustic friction.




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OfflineSneezingPenis
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Re: Resonant frequencies [Re: Seuss]
    #3833796 - 02/25/05 06:34 PM (12 years, 1 month ago)

every +6 dB is perceived as double the sound (amplitude).


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Offlinecb9fl
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Re: Resonant frequencies [Re: SneezingPenis]
    #3834924 - 02/25/05 11:30 PM (12 years, 1 month ago)

http://en.wikipedia.org/wiki/Decibel

Quote:

Under controlled conditions, in an acoustical laboratory, the trained healthy human ear is able to discern changes in sound levels of 1 dB, when exposed to steady, single frequency ("pure tone") signals in the mid-frequency range. It is widely accepted that the average healthy ear, however, can barely perceive noise level changes of 3 dB.

On this scale, the normal range of human hearing extends from about 0 dB to about 140 dB. 0 dB is the threshold of hearing in healthy, undamaged human ears; 0 dB is not an absence of sound, and it is possible for people with exceptionally good hearing to hear sounds at -10 dB. A 10 dB increase in the level of a continuous noise represents a perceived doubling of loudness; a 5 dB increase is a readily noticeable change, while a 3 dB increase is barely noticeable to most people.

Sound pressure levels are applicable to the specific position at which they are measured. The levels change with the distance from the source of the sound; in general, the level decreases as the distance from the source increases. If the distance from the source is unknown, it is difficult to estimate the sound pressure level at the source.




Quote:

Since the human ear is not equally sensitive to all the frequencies of sound within the entire spectrum, noise levels at maximum human sensitivity?middle A and its higher harmonics (between 2,000 and 4,000 hertz)?are factored more heavily into sound descriptions using a process called frequency weighting.

The most widely used frequency weighting is the "A-weighting", which roughly corresponds to the inverse of the 40 dB (at 1 kHz) equal-loudness curve. Using this filter, the sound level meter is less sensitive to very high and very low frequencies. The A weighting parallels the sensitivity of the human ear when it is exposed to normal levels, and frequency weighting C is suitable for use when the ear is exposed to higher sound levels. Other defined frequency weightings, such as B and Z, are rarely used.

Frequency weighted sound levels are still expressed in decibels (with unit symbol dB), although it is common to see the incorrect unit symbols dBA or dB(A) used for A-weighted sound levels.




Quote:

A level difference of ?3 dB is roughly double/half power (equal to a ratio of 1.995). That is why it is commonly used as a marking on sound equipment and the like.




The second quote basically states that human hearing is most sensitive in the 2000-4000hz range. Within which the human voice neatly falls.


--------------------
It is better to be hated for what you are than to be loved for what you are not. -Andre Gide

"Generosity is nothing else than a craze to possess. All which I abandon, all which I give, I enjoy in a higher manner through the fact that I give it away. To give is to enjoy possessively the object which one gives."


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OfflineSneezingPenis
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Re: Resonant frequencies [Re: cb9fl]
    #3835632 - 02/26/05 03:20 AM (12 years, 1 month ago)

Yes, i was wrong, it is +3 dB as double. I havent taken my psychoacoustic classes in so long it all gets jumbled in my head. The average threshold for human hearing though is -1/4 dB to 140 dB. That is printed in almost every psychoacoustic book.
There is a relative and an actual level of noise. This is where you get the difference between Pink noise


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OfflineSneezingPenis
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Re: Resonant frequencies [Re: SneezingPenis]
    #3835641 - 02/26/05 03:22 AM (12 years, 1 month ago)

oops, and white noise


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InvisibleMagicRooms
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Re: Resonant frequencies [Re: SneezingPenis]
    #3835715 - 02/26/05 04:00 AM (12 years, 1 month ago)

You are correct when you say everthing has a resonant frequency. There are also many Harmonic Frequencies for everything.........

This site is interesting http://www.altair.org/natradio.htm


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Enjoy the world around you ...... Good Luck Hunting and Collecting. The future of shrooms depends on all of us.


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OfflineSneezingPenis
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Re: Resonant frequencies [Re: MagicRooms]
    #3835800 - 02/26/05 05:08 AM (12 years, 1 month ago)

Think of the resonant frequency of the heart being used for war. What if our military used high powered transducers to explode mass amounts of peoples heart using a certain frequency. You could immobilize entire fields of enemies.


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InvisibleautomanM
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Re: Resonant frequencies [Re: SneezingPenis]
    #3835844 - 02/26/05 06:27 AM (12 years, 1 month ago)

160db.... jesus christ... no matter what ear protection you had, how could you even breathe?


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Offlinecb9fl
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Re: Resonant frequencies [Re: automan]
    #3836050 - 02/26/05 09:55 AM (12 years, 1 month ago)

http://www.termpro.com/asp/leaderboard3.asp

My friend hit a 153dB in an extra cab Mazda pickup. Sitting in the truck when it was turned up was so incredibly loud. If you put your head in front of the port you could feel the air compressing and decompressing almost painfully.


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It is better to be hated for what you are than to be loved for what you are not. -Andre Gide

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OfflineChuangTzu
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Re: Resonant frequencies [Re: SneezingPenis]
    #3837498 - 02/26/05 04:41 PM (12 years, 1 month ago)

A highly coupled system has A resonant frequency. A loosely coupled system has A SET of resonant frequencies which depend on the individual resonant frequencies of all couplings in the system and the actual frequency they are oscillating at at any time. The efficiencies of these resonances in turn are less. A loosely coupled system loosely coupled to other loosely coupled systems (a pineal gland) is so inefficiently resonant and unstable that, even if you figured out which resonances were most efficient at that precise moment in time very little energy (relatively) would get transferred before the resonance shifted to its environment. Acoustically stimulating the pineal gland, and only the pineal gland, would be like trying to excite one atom of a water molecule in the middle of a lake...


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OfflineSneezingPenis
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Re: Resonant frequencies [Re: ChuangTzu]
    #3838325 - 02/26/05 07:58 PM (12 years, 1 month ago)

yes, i had this talk with someone already, but with the use of multiple out of phase sources pointed at different firections, in time you could figure out a way to isolate unphased waves in a certain spot.


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InvisibleMiddlemanM
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Re: Resonant frequencies [Re: SneezingPenis]
    #3865989 - 03/04/05 02:55 AM (12 years, 28 days ago)

read McKenna's True Halucinations and The Invisible Landscape... twice.

something about the buzzing sound of the insects, DMT + MAOI and superconductivity...


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