"He made the photo not with a fancy digital camera but with an extremely rude, homemade device — a pinhole camera made from an empty soda can with a .25mm hole punched in it and one sheet of
[COLOR=blue ! important][COLOR=blue ! important]photo [COLOR=blue ! important]paper[/color][/color][/color] inside. He strapped it to a telephone pole and left it there for six months, from December 19, 2007 to June 21, 2008. If those dates sound familiar (or astronomically significant), they are — they’re the winter and summer solstices, respectively."
Read more here:
http://www.mentalfloss.com/blogs/archives/21666
I think this is one of the most awesome things ever. I really want to try it.