The Physics of G-Suits

http://en.wikipedia.org/wiki/G-suit
http://www.transaeroinc.com/life%20support/cat/anti-g%20suits
http://wiki.answers.com/Q/Why_do_jet_fighter_pilots_need_to_wear_G-suits?#slide=1
http://inventors.about.com/library/inventors/blflightsuit.htm