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CUEI Infrasound generator, low frequency stable pulse generator with DC 5V 0.5A 7.83Hz Schumann resonance and office cabinet

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Rood, G. (1 August 1977). "Book Review: Infrasound and low frequency vibration. 1977, W. Tempest. London: Academic Press Inc. (London) Ltd". Journal of Sound and Vibration. 53 (4): 605–606. Bibcode: 1977JSV....53..605R. doi: 10.1016/0022-460X(77)90533-8 . Retrieved 12 March 2022. Many simple oscillator circuits have already been discussed here at Bright Hub, so you may choose any one of them to generate and feed the specified frequency of around 15 Hz to the above amplifier inputs. The information regarding various oscillator circuits are provided at the end of this article. Beningnus VA, Otto DA, Knelson JH (1975) Effect of low-frequency random noises on performance of a numeric monitoring task. Percept Mot Skills 40:231–239 a b c NASA Langley Researchers Nab Invention of the Year for Infrasound Detection System By Joe Atkinson, 2014, NASA Langley Research Center

Living systems, including the human species, have evolved within a natural environment whose properties are complex but not intractable to measurement and understanding. Although the partitioning of the formal description of natural phenomena by different scientific disciplines may have satisfied the conditions of human cognition, the subsequent traditions may have obscured the essential relationships between human adaptation and the natural environment that is optimally discerned through true interdisciplinary approaches. The precision of description and the prediction of characteristics of phenomena are strongly dependent upon the instrumentation. As cogently argued by Alves-Pereira ( 1999) and Costelo Branco and Alves-Pereira ( 2004), the average db level that is displayed by most conventional instruments designed to detect sound pressure can underestimate the total potential energy. A measure that reflects frequency distribution (spectra) of the average amplitude of acoustic energy present in the environment, not just what is heard, is essential to understand the biobehavioral impact. Conventional procedures indicated the average (hearing) acoustic pressure within a moving vehicle was measured to be ~70 db while the total acoustic pressure within the band of critical frequencies in the environment was actually 100 db. We have measured, while standing in a 25-m hallway on the first floor that continued into the stairwell of a 7-story university building, infrasound pressure fluctuations of 70 db (C-weighting). The traditional A-weighting recorded less than 50 db. The anomalous pressure waves originated from desynchronized exhaust units on the roof that were maintaining the “balanced pressure” for the multistory complex of fume hoods. a b "Sounds like terror in the air". The Sydney Morning Herald. 9 September 2003 . Retrieved 12 March 2022.Gavreau V, Condat R, Saul H (1966) Infra-sons: generateurs, detecteurs, properietes physiques. Effets biologiques. Acustica 17(1):1–10 Whitman JC, Ward LM, Woodward TS (2013) Patterns of cortical oscillations organize neural activity into whole-brain functional networks evident in MRI BOLD signal. Front Hum Neurosci 7 The energy within a volume from a magnetic field can be estimated by J = (B 2 × (2 × 4πμ) −1 multiplied by volume, where B is the strength of the field and μ is permeability. Direct measurements by a power meter (AC Milligauss Meter: Model UHS2 from AlphaLab Inc) of the average magnetic field strengths from “ear buds” through which music is generated from portable devices (iPOD-touch for example) show field strengths between 10 −7 T (1 mG) and 10 −6 T (10 mG), depending upon the adjusted “loudness.” Employing the above equation for the weakest intensity, the energy would be 4 × 10 −15 J and with a median frequency of 1 kHz (s −1), the power would be 4 × 10 −12 W. With an approximate area of 10 −4 m 2 for the tympanic membrane, the equivalent power density (“intensity”) would be 4 × 10 −8 W m −2 or about 40 db. At very loud levels, the magnetic field intensity from the buds is 10 −6 T so the resulting energy equivalent to acoustic pressure would be about 80 db. Phase modulation of these electromagnetic fields could facilitate the transmission of information other than that contained within the “sound patterns.” Infrasound is sound that is below your hearing threshold which general drops off at 20-30hz, i.e. lower than big booty bass. It can have a profound effect on your body, and should be experimented with carefully! Infrasound is used by the military as a weapon, or science to monitor earthquakes, whales ect.. In this instructable we will walk you through the process of building your own Infrasonic Subwoofer. Matterhorn". 13 January 2008. Archived from the original on 13 January 2008 . Retrieved 12 March 2022.

Persinger MA, Lavalee CL (2012) The ∑n = n concept and the quantitative support for the cerebral-holographic and electromagnetic configurations of consciousness. J Conscious Studies 19:128–153Gorham R, Persinger MA (2012) Emergence of partial complex epilepsy-like experiences following closed head injuries: personality variables and neuropsychological profiles. Epilepsy Behav 23:152–158 In a study at Ibaraki University in Japan, researchers said EEG tests showed that the infrasound produced by wind turbines was "considered to be an annoyance to the technicians who work close to a modern large-scale wind turbine". [45] [46] [47] Cifra M, Fields JT, Farhadic A (2011) Electromagnetic cellular interactions. Prog Biophys Mol Biol 105(3):223–246

Appropriate instrumentation to discern the influence of infrasound is essential. Most building and industrial engineers utilize the A-weighting shapes for sound pressure meters. These correspond to the sensitivity of human hearing as reflected in the response of inner hair cells. Full-spectrum (unweighted) measures require the C-weighted measurements that include the lower frequencies. Salt and Kaltenbach ( 2011) found that G-weighted measures include more infrasound components. Cherry N (2002) Schumann resonances: a plausible biophysical mechanism for the human health effects of solar/geomagnetic activity. Nat Hazards 26:279–331 Persinger MA (2010) 10 −20 Joules as neuromolecular quantum in medicinal chemistry: an alterative approach to myriad molecular pathways. Curr Med Chem 17:3094–3098

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Brown Note". Meyer Sound. 2000. Archived from the original on 6 September 2006 . Retrieved 30 August 2006. A Study of Low Frequency Noise and Infrasound from Wind Turbines" (PDF). Ia.cpuc.ca.gov . Retrieved 12 March 2022. Science Question of the Week - 07 April 2000". 2 November 2004. Archived from the original on 2 November 2004 . Retrieved 12 March 2022. The superlative research of Salt and Hullar ( 2010) highlights the importance of understanding the technical features of microanatomy of the inner ear. The cochlea is a series of fluid-filled cylindrical spaces that spiral around the auditory nerve and are sensitive to differential pressures changes. The membrane between the spaces, the organ of Corti, contains a row of inner hair cells and three rows of outer hair cells. The latter cells display stereocilia with variable lengths. Some of these cilia are embedded in the overlaying gelatinous membrane. At low frequencies, the inner cells respond to the velocity of the displacement of the basilar membrane while the outer cells respond to the actual displacement. The speakers used are specifically “woofers” to enable the handling of the produced low frequencies (infra-level) efficiently. Preferably use 12-inch models with 40 watts of power handling capacity. The pipes also need to be of the same diameter.

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