Low frequency sound waves as we've measured at 16 and 40 hz are very long (over 20 ft) they penetrate and go around obstacles. Whereas higher frequency "A" weighted noise is absorded in the material because their wave lengths are short . In the absence of the higher fequency stuff, the LF takes on a greater clairity. Also, once you reach the hearing threshold of LF, small changes in db have a much greater influence on annoyance. And, the sense varies and is time dependant on how the gas line operators are meeting their next day demand requirements.
On Apr 3, 4:36 pm, dboots <[email protected]> wrote: > Perhaps old solid brick > Maybe they have changed how they manufacture the brick and perhaps > the powder mixture, in the finished product has more air within the > molecules > The end product definitely is a lot lighter than bricks made 40 years > ago > Materials used in most products today are no where near as dense > nor as strong > And many home building supplies have a heck of a lot more > flexibility (elasticity) > designed into the end product > > And I don't think that is solely because the materials lower the > costs for > the end products at the manufacturing level > > I realize I am just a layperson, but it would seem that a lot more > end products seem designed to be more conductive to resonate > But that's just my opinion > > And I agree those are a few of the culprits that are part of the > bigger > equation But truthly the culprit (s) are messing with Mother Nature > and sooner than later something is going to give > > > This is why maybe why Schuman earth resonances, microwave foci and > > > Zero point energies figure high on many observers 'culprit list'. > > On Apr 3, 3:39 am, Trev <[email protected]> wrote: > > > > > Thinking about recent posts, where I agreed that sand in buildings is > > a potential candidate, I still reckoned that in solid brick it would > > be too compacted and unable to resonate signifcantly. > > However, in the case of sand and cement or concete mixes with air > > spaces {I'm not a builder so can't say how much % is used generally] > > there would be air gaps dependant on mix time/ method/ ratio of inputs > > and these could well allow cavity resonance like happens in radar and > > microwave EM effect sources.[Magnetron] > > This could also explain the wide variety of effects and human > > responses to them- but would need a very searching and powerful > > exciting source &/or mechanism[s]. > > This is why maybe why Schuman earth resonances, microwave foci and > > Zero point energies figure high on many observers 'culprit list'. > > > On Apr 3, 8:03 am, dboots <[email protected]> wrote: > > > > Hi Or perhaps it is some form of a building up of a ground wave > > > gaining strength > > > Or perhaps it vibrates within the house and not just on the house? > > > > Dee > > > > On Mar 26, 9:37 am, canadahum <[email protected]> wrote: > > > > > The more solid a house the worse the hum can be experienced. Bricks, > > > > concrete and glass all have one thing in common - their primary > > > > ingredient is Silicon. Could a hum be created when the transmitted > > > > microwave energy or energy source bounces or vibrates on the house > > > > building materials? > > > > > Often the hum sufferer has a "building up" time before a hearer > > > > "tunes" into the sound of the Hum. > > > > > Silicon semiconductors can be held on one finger. How many tons of > > > > silicon goes into build a house? > > > > > Wikipedia "The electrical resistance of single crystal silicon > > > > significantly changes under the application of mechanical stress due > > > > to the piezoresistive effect" > > > > > my email canadahum at yahoo dot ca- Hide quoted text - > > > > - Show quoted text -- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/hum-sufferers?hl=en.
