Over the past month I have constructed a number of detectors all tuned to the same frequency but having various sizes of mass and spring constant. I have observed that the Hum energy transfer, or if you like, the sensitivity depends upon the size of the vibrating mass. If the mass is very small or large, the Hum energy transfer is small, there is a response curve where the energy transfer reaches a maximum. In this experiment the optimum values were o.3 grams for the mass and 29 Newton/metres for the spring constant.
As the concept of these detectors were based on the cilia of the inner ear it is most probable that the inner ear also has a response curve and only those people who have cilia tuned to this response curve will hear the Hum, others will not. It is also evident that this ratio of mass to spring constant is not permanently fixed, this will explain why people suddenly begin hearing the Hum, usually with age, and why others, having heard the Hum for years, just as suddenly find it gone. -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers. For more options, visit https://groups.google.com/groups/opt_out.
