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.
Read more about this topic: Life Support System
Famous quotes containing the word food:
“This is the only “wet” community in a wide area, and is the rendezvous of cow hands seeking to break the monotony of chuck wagon food and range life. Friday night is the “big time” for local cowboys, and consequently the calaboose is called the “Friday night jail.””
—Administration in the State of Texa, U.S. public relief program (1935-1943)
“Feed him ye must, whose food fills you.
And that this pleasure is like raine,
Not sent ye for to drowne your paine,
But for to make it spring againe.”
—Robert Herrick (1591–1674)
“For much of the female half of the world, food is the first signal of our inferiority. It lets us know that our own families may consider female bodies to be less deserving, less needy, less valuable.”
—Gloria Steinem (b. 1934)