the world's longest exposure

david has been really into stumbleupon lately

so while i'm attempting to write one my tutorial papers

he sends me links like this, this, this and photos sometimes like this:

my favorite link that he's sent so far has been this:

the world's longest exposure photo,

taken for 6 months.

it was taken from dec 19, 2007 to june 21, 2008

from the winter to summer solstices

and the lines mark the sun's travel

it's so beautiful.

you can read the story behind it here