OK, so I was watching Smallville last nite and in the opening credits there is a shot of Clark hanging onto a rocket as it takes off. And it got me thinking. Ignoring all factors such as extreme heat from the rockets and extreme cold from the altitude......... Breathable altitude is normally about 10000ft. If you held (or were strapped) onto the outside of a rocket like the space shuttle as it took off, and took a deep breath just as you reached approx 10000ft, could you hold your breath long enough to last until you burnt to a crisp at the earth's atmosphere, or would you pass out before then from lack of air? How fast can the shuttle travel the distance between 10000ft to the atmosphere? I'm reckoning that the fit lady who does the deep sea diving and can hold her breath for about 5mins might make it as far as burger king. Me, judging by the struggle I had up a hill yesterday, probably wouldn't! Any of you reckon you could make it?