rickjump1 0 #26 June 19, 2004 Nice response Beerlight.Do your part for global warming: ban beans and hold all popcorn farts. Quote Share this post Link to post Share on other sites
Beerlight 0 #27 June 19, 2004 Thanks Rick...... I do....what I can.... Buck Quote Share this post Link to post Share on other sites
mjosparky 4 #28 June 20, 2004 QuoteQuoteI was wondering how, as gemini said, you can go unconcious at 40,000 feet in 15 seconds, when a person could hold their breath for that long (and get NO oxygen) without passing out? Anytime any of you guys wish to go through an altitude chamber course, I teach one here at NASA in Houston, TX. Price: FREE And to answer the 40,000 feet, I can hold my breathe theory? Not happening...... A. You have approx. 14 seconds of surplus oxygen in your circulatory system. (I would luv to meet the guy who figured that out, but anyways, that's what we teach). Some people will say, well I can hold my breath for a minute at sea level, so I can do that at altitude, right? -- Reason why you can't hold your breath at that altitude? At 40K, your oxygen partial pressure in your blood will be extremely low( if your not using supplemental oxygen under pressure), and your blood hemoglobin is actually "giving up" it's oxygen back to the lungs and you are exhaling it.......ie. it's called "reverse diffusion gradient" And YES, going to altitude severals times in a day WILL make you fatiqued due to each hypoxia cycle your body is undertaking during the day. Adrenaline "let-down" is also a factor...... This response was directed at no one in particular.. Buck Buchanan Aerospace Physiologist NASA, Johnson Space Center Listen to what he says. You go high you will suffer. There is no other answer. Sparky Houston, TXMy idea of a fair fight is clubbing baby seals Quote Share this post Link to post Share on other sites
