why is the sky blue?

you might be wondering why i am asking this question....see, one saturday morning, i was jogging in UP.....and then i looked up, and as expected there above me was the sky....it was just the normal sky, not clear blue but blue. smoky blue.

one good thing about jogging is that you remember to ask yourself questions about things you used to be curious about but forgot about them along the way. somehow it brings you closer to yourself when other things in your life seems to pull you away.

okay now, laugh.