Updated 2003-12-11 with new URL for Balloon 1.0 project report.
Balloon v1.0 -- "This is the story of how I designed, built, launched, and recovered a high-altitude weather balloon."
This "weather" balloon project is really fascinating. I was especially interested in its ability to take pictures, reminding me of an old bookmark I've got for Kite Aerial Photography (Google search). Now if I just had more spare time...
[Via Q Daily News]