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On 04/11/2003 07:03 AM, David Abineri wrote:
The question as to what the resonant frequency of a human ear drum might
be came up in my class yesterday.
Searching like this:
http://www.google.com/search?q=tympanic-membrane+mass+restoring-force
turns up things like this:
http://funsan.biomed.mcgill.ca/~funnell/AudiLab/damp86.html
NOTE: This makes contact with the recent thread on
"finding things on the internet".
Finding this requires some nontrivial searching.
-- Searching for resonance doesn't work as well as
searching for nitty-grittier physics terms such
as mass and restoring-force. In particular, searching
on resonance is risky because it presumes that the
system is resonant.
-- Searching for eardrum doesn't work as well as
searching for tympanic-membrane
==================================================
On 04/11/2003 07:46 AM, Karl Trappe wrote:
> Pediatricians are taught that the resonant frequency of the ear
> *exactly matches* the cry of a baby. Think about it, and it makes
> good biophysics sense.
On what planet is that? This brings new meaning to the
concept of "exactly".
Where I come from, neither ears nor cries are narrowband.
Searching on:
http://www.google.com/search?q=baby+cry+spectrogram
Leads immediately to:
http://www.clarku.edu/research/access/psychology/thompson/sound.html
which is about as wideband as anything you're ever going
to see.