Monthly Archives: October 2010

Big Trains, Long Tracks.

I’m lying here relaxing in the bright Sunday sun, listening to the overwhelming sounds from the trains that pass right outside my apartment every few minutes.  It makes me think of the of Big Bang, and its Fourier Transform.  Considering the Big Bang as the Big Impulse, and then moving the observation into the frequency domain, what can we know?  Is there a clue to the temporal structure of the singularity in the frequency distribution of residual energy in the universe?  Are the gamma frequencies observed in nature at the top of the spectrum somehow akin to the risetime of the Bang?  Yes, non-linear processes create new spectral distributions.  Still, one might reasonably expect that the general shape of the frequency distribution of energy in the universe has its origins in the primordial event, as surely as the spatial shape of or universe is considered to. 
But, back to the trains.  I was ruminating about DC and low frequencies, and how ubiquitous they are in the physical world.  Observing downwind of the sound, one gets a clue at how dominant the DC component of the Big Impulse might have been.  Within the sound spectrum we hear and sense, longer wavelengths tend to dominate the distributions.  On top of this, I can readily absorb, reflect and scatter only the shorter wavelengths if I am not in the mood to embrace the sound.   And, a lower-still frequency, wind, carries its shorter relatives past the bouncer into whatever rooms and parties it wants to be at. 
Closing windows, sealing door jams frustrates the wind as well as the airborne components of the train sounds, but it is hard to frustrate the barometer. These influential frequencies are lower still, and almost beyond human means to address.  It can be done, I suppose, at great cost. I have seen entire guitar painting and semiconductor factories that maintained positive barometric pressure with respect to the local ambient, in an attempt to keep this deepest of bass from assisting maliciously. 
And what is lower in frequency than the barometer?  Perhaps the presence and characteristic of the atmosphere itself; its temperature, its cycles, its stability.  And we all know where that is going.
Note:  this is just playful, poetical musing.  It’s fun, not serious or insane.  (I hope.)