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Message: <blockquote data-quote="erikvw" data-source="post: 158284" data-attributes="member: 547050">It's a harmonic, and the 7hz was in reference to the frequency of the tone produced by the contraction of the heart muscles. Correct it is the measure of the "power" of a wave, no matter the type. In the case of sound it is a measure of SPL. In radio waves it is a measure of "gain". All I was saying is that if this wave is imparting enough energy on the heart to stop it from beating it is imparting the same force on the rest of the soft tissue in your body. Look it up //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif<a href="http://www.howstuffworks.com/radio.htm" target="_blank">http://www.howstuffworks.com/radio.htm</a> Thus a microwave oven excites the molecules of water in an object and "heats" it. Try it, put a pyrex glass dish in the microwave and nuke it, empty, it will remain cool due to the fact that  *nearly* all moisture has been removed to make it suitable for cooking. Glass not suitable for cooking still has a moisture content which will expand and contract quickly in sudden temperature changes and crack the vessel. Same for "Freeze Dried" food and flour and numerous other "perfectly dry" items. In all truth though nothing I suppose is perfectly dry due to humidity present in the air in the microwave to begin with. Still, try it sometime, let me know how it works out for you. I think you'll be surprised.A microwave oven uses microwaves to heat food. Microwaves are radio waves. In the case of microwave ovens, the commonly used radio wave frequency is roughly 2,500 megahertz (2.5 gigahertz). Radio waves in this frequency range have an interesting property: they are absorbed by water, fats and sugars. When they are absorbed they are converted directly into atomic motion - heat. Microwaves in this frequency range have another interesting property: they are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, which is why metal pans do not work well in a microwave oven.  (Taken from <a href="http://www.howstuffworks.com/microwave.htm" target="_blank">http://www.howstuffworks.com/microwave.htm</a>) No, sound waves compress atoms physically. (each molecule of air hits the next one and so on for the sound to travel to your ears.)Radio waves do no such thing. You hear sound waves because they compress your eardrum, nuking your head will not make a noise. This is where I am confused, I see "hold it still" and think physical force. Earlier you said that 170db is snough to "disrupt" the "muscle action" I am not sure that either of these is possible but I am sure it is two different scenarios, the second being the only one worth debating.... and ...I think a ducumented case of someone dying from "loudness" would have come up by now. Although maybe it is entirely possible but the only means of creating a noise so deadly is lethal in itself with todays knowledge and thus untestable. It's a harmonic and this is straight from the mouth of several electrical engineers. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifNever said anything about voltage or amperage, the cycle rate makes the difference in whether you "stick" to an electrical source, the power lines outside will toss you, the wall outlet will not.I must admit that I know very little of car stereo and stumbled upon this by sheer dumb luck as I want to replace the factory stereo in my car. I just can't pass up a good argument. I did know a kid in high school with like 6 or 10 large subs in the bed of a pickup and the bed joined to the cab by some "cut thru" thing and he made several peoples noses bleed (I'm assuming from the bass).</blockquote>

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