Interesting that whales and elephants, particularly use long distance LF sound to communicate. This takes large area transmitters [ie: bodies] to excite air and water and must also include quite a sensitive pick up mechanism to be effective. No way of telling whether these animals would hear the hum- but high probability!
On Apr 13, 1:42 am, Steve K <[email protected]> wrote: > 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 -- 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.
