JF Mezei wrote:

On 2016-11-26 10:05, Fred J. McCall wrote:

Except you weren't. You were automagically turning it all into
methane by waving your magic willie and then acting as if that's
useful.


So, what is your opinion on how a ship filled 100 people for months
should handle/process human waste ?


NASA is apparently doing studies about turning it into food.


When designers go through great strides to shave off a percent here and
there to reduce ship's mass, wouldn't the ability to generate fuel from
waste during the journey also help shave a percent here and there?


Yes, magic would be quite handy. Until you specify precisely how you
think you're going to turn solid human waste into methane, magic is
what you're talking about. You see, there is a lot of, well, crap in
human waste. You can't just wave your magic willie and turn it into
methane. Even if you could, how do you get it from the 'digester'
into a high pressure fuel tank?


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn