Reversible flow (when I show this in class, minds are blown)...
The illustration & design work of Portland, OR based Zach Johnsen. New & improved version! This site showcases Zach's print and commercial projects and the worlds that inhabit his work.
Rapping down the roof pitch. El Capitan, Yosemite, California,Part of a gallery of color pictures of Mountain Adventure by professional photographer QT Luong, available as prints or for licensing.
A Showcase Gallery of Film Astrophotography