To be clear, I was being facetious...
How will we know, when the morning comes, we are still human? - 2D
Don't worry, my friend. If this be the end, then so shall it be.
Don't worry, my friend. If this be the end, then so shall it be.
Oxygen..
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To be clear, I was being facetious...
How will we know, when the morning comes, we are still human? - 2D
Don't worry, my friend. If this be the end, then so shall it be. RE: Oxygen..
November 9, 2014 at 6:20 am
(This post was last modified: November 9, 2014 at 6:23 am by Aractus.)
(November 8, 2014 at 5:18 pm)lifesagift Wrote: I asked a similar question about blood and the circulatory system the other day and got a very fulfilling answer, so trying again.Diffusion is very very quick, it has to be because blood is continually flowing through the capillaries. O2 is picked up by haemoglobin in the RBCs and transported to cells around the body. Oh and the capillaries around the alveoli are so thin that RBCs only just fit through and thus brush against the membrane maximising diffusion to (CO2) and from (O2) the alveoli.
For Religion & Health see:[/b][/size] Williams & Sternthal. (2007). Spirituality, religion and health: Evidence and research directions. Med. J. Aust., 186(10), S47-S50. -LINK
The WIN/Gallup End of Year Survey 2013 found the US was perceived to be the greatest threat to world peace by a huge margin, with 24% of respondents fearful of the US followed by: 8% for Pakistan, and 6% for China. This was followed by 5% each for: Afghanistan, Iran, Israel, North Korea. -LINK "That's disgusting. There were clean athletes out there that have had their whole careers ruined by people like Lance Armstrong who just bended thoughts to fit their circumstances. He didn't look up cheating because he wanted to stop, he wanted to justify what he was doing and to keep that continuing on." - Nicole Cooke (November 8, 2014 at 9:57 pm)Heywood Wrote:(November 8, 2014 at 7:54 pm)Chuck Wrote: Also, if the air you breath has no oxygen content, your body would not alert you to the fact that you are suffocating. You just pass out peacefully and die. Helium is an expensive way to execute someone, why not use nitrogen, much cheaper. I saw a film where they had volunteers in a chamber with oxygen masks on, some had the oxygen reduced and replaced with nitrogen... they didn't notice, just went to sleep. A low cost and painless way to kill someone if that's what you really need to do.
The meek shall inherit the Earth, the rest of us will fly to the stars.
Never underestimate the power of very stupid people in large groups Arguing with an engineer is like wrestling with a pig in mud ..... after a while you realise that the pig likes it! (November 9, 2014 at 1:30 pm)zebo-the-fat Wrote:Helium gas must be extracted as a mining and drilling byproduct. Available mines that produced helium in useful quantities have mostly been exhausted. There are a lot of practical uses for helium and a very finite total inventoy without realistic prospect of serious replenishment in the near future. What is available shouldn't be wasted.(November 8, 2014 at 9:57 pm)Heywood Wrote: This is true (November 9, 2014 at 3:17 pm)Chuck Wrote:(November 9, 2014 at 1:30 pm)zebo-the-fat Wrote: Helium is an expensive way to execute someone, why not use nitrogen, much cheaper. I saw a film where they had volunteers in a chamber with oxygen masks on, some had the oxygen reduced and replaced with nitrogen... they didn't notice, just went to sleep. A low cost and painless way to kill someone if that's what you really need to do.Helium gas must be extracted as a mining and drilling byproduct. Available mines that produced helium in useful quantities have mostly been exhausted. There are a lot of practical uses for helium and a very finite total inventoy without realistic prospect of serious replenishment in the near future. What is available shouldn't be wasted. I hear that a significant amount of the world's stick of helium is going to be used to cool ITER's superconducting coils... but it's ok, ITER will generate helium as a byproduct of fusion. |
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