Food
Life support systems could include a plant cultivation system which allows food to be grown within buildings and/or vessels. However, no such system has flown in space as yet. Such a system could be designed so that it reuses most (otherwise lost) nutrients. This is done, for example, by composting toilets which reintegrate waste material (excrement) back into the system, allowing the nutrients to be taken up by the food crops. The food coming from the crops is then consumed again by the system's users and the cycle continues.
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Famous quotes containing the word food:
“Civilization means food and literature all round. Beefsteaks and fiction magazines for all. First-class proteins for the body, fourth-class love-stories for the spirit.”
—Aldous Huxley (1894–1963)
“Most vegetarians I ever see looked enough like their food to be classed as cannibals.”
—Finley Peter Dunne (1867–1936)
“I really don’t think this war will end soon. We are completely aware of the difficulties, no food or fuel, the danger, but we want to be stronger than all that. With each child, we are fighting back with our love of life.”
—Tina Bajraktarebic (b. 1965)