> Because of the differential scatter rate possessed by photons at
> the red end of our frequency spectrum vs. at the blue end, when
> penetrating our atmosphere.
> Joe E. Dees
> Poet, Pagan, Philosopher
...to reconfigure the childish question in adult terms:
why is it that our perceptive field interprets electromagnetic frequency variation of light from the sun on interaction with the terran atmosphere as an experience posessing the qualia 'blueness' and what does this signify?