Wednesday, October 17, 2007

why do stars twinkle?

Somebody once told me that stars twinkle because of things like pollution and dust particles, and that if one went out into space, then stars don't twinkle anymore..

More recently someone told me that some stars are so so far away that the twinkle is actually because we are catching only one photon at a time, and the delay between the photons is what causes twinkling.

I had a very interesting class the other day. We were trying to understand perception. We noticed that people's understanding of the world around them happens in waves, and not in a straight line. We tend to compare by forming ratios. Everything is measured as relative information and not in absolutes...This got me pretty excited... we noticed that we could immediately detect the difference between NO light and a Very small amount of light, but if we already had a lot of light in the room, and somebody let in just a small bit more, nobody could tell the difference.

So this means that extremes define the scope of perception... light and dark ... weightless to heavy ... black and white to color saturation ... and the inbetweens are ratios and relatives within that.

This got me thinking about beauty/art/poetry. An old experimental idea of mine.
That beauty lies approaching extremes... pushing the limit, but perhaps not crossing it.
Playing with the limits of perception.

I probably need to think this through a bit more...

2 comments:

Jadedism said...

A graphic designer into photography told me this...

"the camera lens can capture only part of the colours..while our eyes see the most of the palette..but there are parts that even our eyes cant visualise.."

The unsaid rule in photography is to capture reds or blues or & greens..extremes..the primary colours...and these really add to the beauty. Ever wondered why dusk looks more prettier than dawn...or how a sharp contrast in blue skies with greenery adds to a picture..and black & whites more real than the greys & colour?

Nice piece..beautiful thought..

dqerwin said...

there are other kinds of perception besides the 5 senses, and these are where waves really come into play. Like an ocean tide, we slowly become aware of some things (feelings, intuitions) over days or weeks, one minute perhaps being hypersensitive to it and the next minute becoming distracted by something more urgent, most likely more physical.
But like the small perturbations of individual wavelets in comparison to a rising tide, a widening consciousness will slowly, imperceptibly increase and encompass more and more despite the fact that some things shift in and out of view in the shorter term.