Re: Are politicians averse to leaving LEO?

In sci.space.policy message <5491f$497494b8$927a2cda$8976@xxxxxxxx>,
Mon, 19 Jan 2009 09:56:56, Jeff Findley <jeff.findley@xxxxxxxxxxxxxx>
posted:

Of course there will be a net loss of oxygen as you go along due to the
amount of energy extracted from it the body uses.

True.

Not so.

Oxygen taken in from breath will predominantly go out as CO2; but oxygen
taken in from food will in part be eliminated as water from which
breathable oxygen can be obtained. With efficient recycling of all bar
dry faeces, and with little wastage, food alone can in principle supply
all the material needed to make up losses. But not yet, no doubt, in
practice.

--
(c) John Stockton, near London. *@merlyn.demon.co.uk/?.?.Stockton@xxxxxxxxxxx
Web <URL:http://www.merlyn.demon.co.uk/> - FAQish topics, acronyms, & links.
Correct <= 4-line sig. separator as above, a line precisely "-- " (SoRFC1036)
Do not Mail News to me. Before a reply, quote with ">" or "> " (SoRFC1036)
.

Relevant Pages

  • Re: Arrrgh. Freeman Dyson on topic for uba
    ... the national cut in the amount of CO2 due to your holding your breath ...
    (uk.business.agriculture)
  • Re: Dry Ice Box?
    ... If you breath pure N2 the first breath you pass out and the second breath brain damage and the third death. ... That means you'd need to evaporate sufficient N2 to equal the volume inside the boat, and you'd have to do it without ventilation. ... You'd require the same volume of subliming CO2 as evaporating N2 to cause O2 deprivation issues. ...
    (rec.boats.cruising)
  • Re: School helmet compulsion
    ... in the air but CO2 itself isn't toxic. ... CO2 is toxic because even if there is sufficient O2, if you breath a gas ... CO is toxic because not only does it prevent the blood picking up O2 ...
    (uk.rec.cycling)
  • Re: co2 - safe handling?
    ... Regarding CO2 cyllinders ... staff welding the pot had gone for lunch and had turned off the extraction ... still plenty of oxygen in your lungs but the rising CO2 says: BREATH! ...
    (rec.crafts.metalworking)
  • Re: Help a guy out?
    ... >>>rebreathers is that your body only gets a signal to breath from CO2 ... If the CO2 is being scrubbed then you would not notice the O2 ... to breathe whether you are breathing pure O2, air, pure nitrogen, or ...
    (rec.scuba)
Quantcast