The initial impression of wind turbines is upon our senses of eyes and ears. By the light of day, the impression is visual. And, once the blades start turning, the impression is also auditory. These initial impressions are made through our senses of vision and hearing. As with the vast majority of our daily experiences, we tend to also consider wind turbines simply as an 'audio-visual' experience.
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Our sense of sight is based on our eyes being sensitive to certain frequencies of electromagnetic radiation. Most of us realize that our eyes recognize only those frequencies of electromagnetic radiation known as visible light, and that the full spectrum of electromagnetic radiation also includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
 In today's technologically enriched world, most of us are aware that radio frequencies of electromagnetic radiation provide much of our means of distant communications, that microwave frequencies of electromagnetic radiation conveniently heat our food, that infrared frequencies of electromagnetic radiation reheat convenience foods, that ultraviolet frequencies of electromagnetic radiation make some substances fluoresce and also causes sunburn, that X-ray frequencies of electromagnetic radiation provides penetrating medical insights, and that gamma ray frequencies of electromagnetic radiation are destructive to flesh. |
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Our sense of hearing is based on our ears being sensitive to certain frequencies of atmospheric compressions. Most of us know that our ears recognize those frequencies of atmospheric compressions known as audible tonal sound, and that there are higher and lower frequencies beyond this acoustic range of frequencies..
However, in today's visually pre-occupied world, our familiarity with extreme frequencies of atmospheric compression beyond acoustic sound is actually quite limited. Typically, most people are aware that 'dog whistles' utilize extremely high frequencies to get response from dogs' higher frequency range of hearing, and that 'movie theatre sound systems' utilize extremely low frequencies to produce 'ground-shaking vibrations'.  Society's limited appreciation of the potential of extreme frequencies of atmospheric compression has led to the entertainment, manufacturing, medical and environmental industries focusing the majority of their attention to the fully audible or 'acoustic' frequencies .. to the extreme practice of purposely filtering out non-tonal or 'inaudible' compression frequencies by using the 'dBA' filter in establishing production standards, legislation and regulations. Society's general ignorance of the great energy that low frequencies of atmospheric compression can impart and of the health impacts these compressions can inflict, has allowed the wind turbine industry to produce and install increasingly larger and larger turbines with concerns only for the acoustic frequencies being produced. This societal bias has allowed the wind turbine industry to proceed unchecked so far, to the point where it is today. |
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The study of infrasound (low frequencies of atmospheric compression) has been conducted sporadically over recent decades by numerous unconnected disciplines .. from the study of animal communications to nuclear-test detection.
However, serious study of the effects of low frequencies of atmospheric compression on the human body has only been started recently, in part as a result of numerous rural populations being adversely impacted by the operation of industrial wind turbines. The irony of this situation is that only after the industrial wind turbine industry has become established and is supported by official government policies, does it belatedly become the subject of environmental health testing. |
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senses.htm (July 2, 2009) | |