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Topic: Infrasonics

	Infrasound - Wikipedia, the free encyclopedia
		One of the pioneers in infrasonic research was French scientist Vladimir Gavreau, born in Russia as Vladimir Gavronsky.
		Concerning behavioral patterns of animals and the infrasonic effects of natural disasters, it is to be noted that animals can also recognize the infrasonic waves emitted from such natural disasters and can use these as an early warning.
		Infrasonic and Acoustic-Gravity Waves Generated by the Mount Pinatubo Eruption of June 15, 1991, Makoto Tahira, Masahiro Nomura, Yosihiro Sawada and Kosuke Kamo
	en.wikipedia.org /wiki/Infrasound (799 words)

	Bullroarers - an article by Bethe Hagens (Site not responding. Last check: 2007-10-08)
		Infrasonics and Consciousness Modification In the mid-1980s, a radical reassessment began when acoustic scientists determined that bullroarers produce a range of infrasonics, extremely low frequency sound waves (20 Hz.
		Infrasonics stimulate a wide array of euphoric, eerie, and/or deeply traumatic trance-like and hallucinogenic states, and serotonin nerves may be central to this process.
		Infrasonics fall within the same frequency range as brain waves, and brain waves have been experimentally linked to a variety of mood and thought patterns.
	www.duckdigital.net /FOD/FOD1049.html (1668 words)

	Infrasonic Symphony: Science News Online, Jan. 10, 2004 (Site not responding. Last check: 2007-10-08)
		Infrasonic research gained significant attention and funding in the 1950s, when the United States and the Soviet Union used infrasound to detect each other's atmospheric nuclear testing.
		The microphones constantly record infrasonic wavelengths that pass over the arrays, and once a week the researchers download the collected data.
		A Cassowary might pick up infrasonic signals with its casque, a mysterious head-top structure that is the subject of much scientific speculation but has no known function.
	www.sciencenews.org /articles/20040110/bob9.asp (2414 words)

	Infrasonics Coaching and Consulting
		Infrasonics refers to those sound waves that are below the frequencies available to the human ear.
		Most infrasonic sounds are changes in the earth or the sea.
		For facilitation, coaching, and consulting, Infrasonics means deep listening—listening beneath the words, creating the future within organizations, communities, and individuals.
	www.infrasonicsco.com (84 words)

	Anemaw [Animal Electromagnetism and Waves] : Infrasound and Seismic Communication Waves . © Elizabeth Gerrow 2002 .
		The study of infrasound waves may be known as "infrasonics" or "infra acoustics", a contemporary study in both biological and geological sciences (11).
		Infrasonic research is based upon frequencies of 10.0 Hz or below, to 0.0010 Hz (used in monitoring earthquakes), although the lower limit of infrasonic domain is not strictly defined (20).
		Infrasonic wavelengths possess the ability to travel through both water and air mediums, being measured in decibels (dB), however the measurement scale for decibels in air differs from the scale used for those in water (4).
	members.fortunecity.com /anemaw/infrasonic.htm (1817 words)

	NOAA ESRL Infrasonics Program
		The Infrasonics Network is a prototype system to assess the possibility of improving warnings of severe weather events.
		A 1995 observation of infrasound from an infrasonic observatory co-located with the CHILL Doppler radar in NE Colorado documented infrasound originating from the vicinity of rotation aloft, descending to the surface in the area of a tornado report.
		The lines are the county boundaries and the radii of the gray circles centered on the locations of the three infrasonic observatories indicate signal limiting noise level thresholds.
	www.esrl.noaa.gov /psd/programs/infrasound/isnet (665 words)

	CD Baby: THE INFRASONICS: Bad Guy Music
		The Infrasonics are an analog symphony orchestra, using moogs, farfisas, electric pianos, and other vintage instruments to create an electronic epic sound.
		The Infrasonics have been the Bad Guy's partners in crime since the turn of the millennium.
		To the average listener, Uncle Charles' broadcast of the Infrasonics' debut album, Bad Guy Music is an original treat to the ears.
	www.cdbaby.com /cd/infrasonics (471 words)

	Infrasonics Coaching and Consulting
		Infrasonics coaches and consultants are both supportive and challenging, active and still, reflective and practical.
		At Infrasonics, we work with individuals, teams, and work groups creating organizations that bring out the best in each individual and create value far beyond the sum of individual contributions.
		Coach training is for individuals interested in exploring coaching as a career, human resource professionals using internal or external coaches, managers coaching employees, or educators being asked to work differently with students and peers.
	www.infrasonicsco.com /coaching.html (416 words)

	Ultrasonics and Infrasonics
		Infrasonic frequencies refer to those which are lower than 25 Hz.
		Vibrations which are infrasonic or which are considered infrasonic in character may cause slow variations in air pressure or in the elasticity of any wave - transmitting material.
		The outgoing sound pulses are registered by the brain and compared to its echo, thus allowing many organisms to both see and catch prey in the dark.
	www.k12.nf.ca /gc/scienceweb/physicsweb/Physics2204/studentprojects/Project16/ultrasonics_and_infrasonics.htm (600 words)

	Project Statement of Work
		The Infrasonic Project is being pursued under the BAA and Mina Project Grants and Contracts.
		In a portable infrasonic noise system it is necessary to record wind speed, wind direction, temperature, absolute barometric pressure, relative humidity, and acoustic noise levels.
		The spatial and frequency characteristics of ambient and wind generated infrasonic noise will be recorded at three different locations such that various noise reducing structure designs may be tested and a better specification for infrasonic recorders may be developed.
	www.geology.smu.edu /~hayward/Projects/Infrasonics/assets/sow.html (1142 words)

	Infrasonics - Ghostly Talk
		Symptoms of exposure to infrasonic frequencies: - uneasiness, feeling of being watched, general paranoia, nausea, headaches, feelings of being cold or clammy, blurred vision.
		There are lots of other man made sources of infrasonic sounds that we have to deal with, tires on a car, train wheels, wind blowing over a chimney or pipe, airplanes, the sources are numerous.
		There are also many sources for natural infrasonic sounds: meteors, volcanoes, earthquakes, ocean waves, the jet stream, severe storm systems, tornadoes, auroras, sprites (an effect associated with lightening), wind in the mountains and many animals (elephants, whales, giraffe…).
	www.ghostlytalk.com /node/560 (888 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		One destructive example of infrasonics are waves that come about during earthquakes.
		Infrasonics are also created by fast moving vehicles.
		It is beleived that people that get motion sickness are particularly sensitive to the infrasonics created by the vehicle.
	hamline.edu /~arundqui/phys1140/summary/dataold/cbergstedt/920-summary (168 words)

	Infrasonics Coaching and Consulting
		Karen V. Bading, M.A., is founder and principal of Infrasonics Coaching and Consulting, dedicated to hearing beneath the words and creating the future in technical, manufacturing, and non-profit environments such as Agilent, EDS, and Urban Learning Centers.
		Karen created Infrasonics Coaching and Consulting to develop business leaders who want to expand their definition of good work and lead satisfying, balanced lives; leaders who strive, in the words of Peter Senge, "to think with their hearts and feel with their minds." Infrasonics refers to sounds below the frequency audible to the human ear.
		And in her spare time, Karen serves as President of the Board of Directors of Angel Interfaith Network and is developing her skills as a knitter.
	www.infrasonicsco.com /who.html (511 words)

	Nellcor Puritan Bennett and Infrasonics File Joint Proxy Statement/Prospectus Business Wire - Find Articles (Site not responding. Last check: 2007-10-08)
		In addition, stockholders of Nellcor Puritan Bennett are being asked to approve an increase in the number of authorized shares of Nellcor Puritan Bennett common stock and a two-for-one split of the Nellcor Puritan Bennett common stock.
		The Registration Statement under the Securities Act of 1933, as amended, for this transaction was filed with the Securities and Exchange Commission on May 29, 1996 and declared effective on May 31, 1996.
		Infrasonics Inc., headquartered in San Diego, Calif., is a respiratory equipment manufacturer of neonatal, pediatric and adult ventilators and accessories.
	www.findarticles.com /p/articles/mi_m0EIN/is_1996_June_3/ai_18349576 (278 words)

	NOAA ESRL Infrasonics Program
		Infrasonics is the study of sound below the range of human hearing.
		We are engaged in the development and deployment of infrasonic instruments for detection and monitoring of low-frequency sound generated by several important anthropogenic and geophysical processes.
		Seismic Response of Infrasonic Microphones A.J. Bedard, Journal of Research of the National Bureau of Standards, C.
	www.esrl.noaa.gov /psd/programs/infrasound (444 words)

	Cabinet Magazine Online - The Acoustics of War
		Eventually, engineers traced the problem to an improperly installed motor-driven ventilator that activated an infrasonic resonance in a large duct where it sat.
		The motor, coupled with the rest of the concrete building, itself a large enclosure, formed an infrasonic amplifier.
		Shutting the windows altered the resonance of the building and shifted its infrasonic pitch.
	www.cabinetmagazine.org /issues/5/acousticsofwar.php (2129 words)

	Infrasonic Weapons--No Zap Guns Need Apply (Site not responding. Last check: 2007-10-08)
		The views expressed in these papers are those of the authors and do not reflect the official policy or position of the United States Air Force, Department of Defense, or the United States Government.
		Infrasonics would be relatively silent, as rugged as most audio equipment, and would require far less energy than lasers.
		Commercial Applications: Low-powered infrasonics could be used as security devices such as in office buildings and shops (`sonic eyes`).
	csat.au.af.mil /2025/concepts/900289.HTM (202 words)

	Ghostly Designs's blog - Ghostly Talk (Site not responding. Last check: 2007-10-08)
		To make a long story short, he discovered that a bad bearing in a ventilator motor was causing the infrasonic noise, once repairs were made, no more haunting.
		It has also been shown that infrasonic waves at frequencies between 18 and 19Hz will cause vibrations (resonance) in our eyes causing us to see things that are not there.
		The most common items in a household that can cause infrasonic noise are small horsepower motors.
	www.ghostlytalk.com /blog/2409 (754 words)

	The Infrasonics (Site not responding. Last check: 2007-10-08)
		The Infrasonics will be playing the Wednesday Affair at the Tonic Room.
		The Infrasonics will be opening up for RabiRabi (Japan) and Salvo Beta (Chicago) Thursday, June 1st, 2006 at the Abbey Pub.
		The Infrasonics' song Passport has been selected to be a part of Hostage Radio's 2005 Compilation.
	www.caffeinatedrecordings.com /web/theinfrasonics (657 words)

	ISSW - International Snow Science Workshop
		This project is researching the use of an array of infrasonic sensors to determine if information regarding the magnitude and location of avalanches can be obtained in real time.
		At stop #1 the location of the Infrasonics Sensors, a new method of detecting avalanche activity, will be pointed out.
		The Infrasonics sensors were tested the winter of 02-03 and are operational the winter of 03-04.
	www.avalanche.org /~issw2004/activities.htm (1072 words)

	COMPANY NEWS;NELLCOR BENNETT TO SWAP STOCK FOR INFRASONICS - New York Times
		Nellcor Puritan Bennett Inc. of Pleasanton, Calif., said yesterday that it planned to acquire Infrasonics Inc. in a $66 million stock swap.
		Infrasonics stockholders would receive 0.095 share of Nellcor Puritan Bennett for each Infrasonics share, with a minimum stock value of $6.25 a share.
		Infrasonics, based in San Diego, had revenue of $23 million in the year ended in June.
	query.nytimes.com /gst/fullpage.html?res=9C00E0D91639F931A25750C0A960958260 (133 words)

	Noise from BX63 - Lansing Heritage Forums
		I assumed that these were infrasonics due to poor filtering in the original mastering and only audible because of the extended frequency response of the BX460.
		If you set the BX460 at the correct volume for the genuine sounds, the infrasonics are a load on the ears.
		Ten years later, there is home theatre with exaggarated infrasonics where the BX460 may be OK, but not for hifi.
	www.audioheritage.org /vbulletin/showthread.php?t=561 (1847 words)

	2004-2005 UAF Catalog
		Advanced study at the graduate level is offered in various areas of physics and applied physics, including many of the research specialties found at the UAF’s Geophysical Institute.
		Faculty and student research programs currently emphasize investigations of auroral, ionospheric, magnetospheric and space plasma physics, the physics and chemistry of the upper and middle atmosphere, radio-wave propagation and scattering, solar-terrestrial relations, condensed matter physics, complex dynamics of non-linear systems, ice physics and infrasonics.
		The physics department is also responsible for the graduate degree programs in general science, computational physics and space physics.
	www.uaf.edu /catalog/catalog_04-05/programs/physics_grad.html (211 words)

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	online-mystery-shopper.com /batteries/acid_infrasonics_concept_101.asp (775 words)

	Infrasonics Program
		Locations of infrasonic stations in the International Monitoring System
		Infrasonic signals on 24 February 1994 from an avalanche on Gothic Mountain, Colorado
		Infrasonic data from the epicenter of the California earthquake of 28 June 1992 measured at the BAO observatory
	www.etl.noaa.gov /about/review/as/bedard (107 words)

	Iowa Neonatology Handbook: Pulmonary: High Frequency Ventilation (HFV)
		INFRASONICS INFANT STAR High-Frequency Ventilator: We are currently using the Infrasonics Infant Star ventilator at a frequency of 15 Hz (900 breaths/minute) in premature infants who develop PIE while on conventional mechanical ventilation.
		The Infant Star is a flow interrupter, not a true oscillator, but its physiological effects and advantages are similar to those of true oscillators.
		AMPLITUDE: a rough representation of the volume of gas flow in each high frequency pulse or "breath." Adjust the amplitude until you achieve vigorous chest wall vibrations, usually occurs at an amplitude of 20-30.
	www.uihealthcare.com /depts/med/pediatrics/iowaneonatologyhandbook/pulmonary/highfrequencyhfv.html (1059 words)

	Battery Laptop Camcorder - 26Ah Sealed Lead Acid F2 Terminal, Acid Infrasonics and Concept 101 - Best Bargain Retailer!
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	www.online-mystery-shopper.com /batteries/acid_infrasonics_concept_101.asp (775 words)

	Interviews - Infrasonics
		Apart from our web site, the science of infrasonics has a pretty fascinating history.
		Before we started the Infrasonics, I never believed a cold sterile machine like a computer could merge with passionate music, to the point where we can even be spontaneous or improvisational within the context of our songs.
		For example, a song like Airliner, with its note-for-note guitar solo is three minutes and change on the record, and pretty much stays that way live.
	www.chicagomusicguide.com /interview_infrasonics.htm (2274 words)

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