For those of you that have Kindles, iPads, Nooks, computers, etc. NASA has a large collection of free ebooks. They cover anything from aeronautical history to memoirs of researchers. http://www.nasa.gov/connect/ebooks/index.html I browsed through the one on pressure suit design through the years. About half of it made my eyes bleed, but the other half was fascinating. Dan -- Daniel Holmes, danielh@holmesonics.com "Laugh while you can, monkey boy!" -- Lord John Whorfin