Re: BBC's Pegasus spaceship

From: Rodney Kelp (Rodneykelp605_at_hotmail.com)
Date: 11/18/04 

Date: Thu, 18 Nov 2004 17:09:11 -0500

You might want to grow a few things to get fresh vitamins. Human waste is an
excellent fertilizer and moisture supply. It can be composted very fast.

"Jeff Findley" <jeff.findley@ugs.nojunk.com> wrote in message
news:H%6nd.1536$EM3.1516@fe37.usenetserver.com...
>
> "Andi Kleen" <freitag@alancoxonachip.com> wrote in message
> news:m3mzxfgf6z.fsf@averell.firstfloor.org...
>> "Jeff Findley" <jeff.findley@ugs.nojunk.com> writes:
>>
>> > Actually, it could. The food needed for that length of time can't
>> > weigh
>> > that much, especially if it's all freeze dried. The web site said the
> ship
>> > weighed 400 tons. Out of that 400 tons, the site says it contains "57
>> > tonnes of food and 80 tonnes of oxygen". You don't think 57 tons is
> enough
>> > food to last 8 people 6 years? That's 3.25 kg per day (over 7 pounds).
>>
>> Wouldn't it need much more water than that? I wonder how much is left for
> the
>> propellant and the rest of the hardware.
>> Or perhaps they're planning to mine some ice comets during the journey.
>> But if they did that they could as well mine the Oxygen there using
>> the power from their fusion reactor.
>
> This was "designed" for a BBC TV show, so there isn't much detail there,
> other than the pretty pictures.
>
> For a six year mission, you'd think that they would recycle H2O (from
> urine
> and from humidity in the air of the ship). I thought that when food an O2
> were metabolized, you got water as a byproduct. If this is so, then you'd
> think that recycling of H2O ought to take care of water requirements.
> Given
> the fusion reactor, you'd think they could also recycle H2O from solid
> wastes as well, by baking off the water in a furnace.
>
> Jeff
> --
> Remove icky phrase from email address to get a valid address.
>
>
> 

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