Member 223
8 entries

Cucamonga, US
Immortal since Dec 11, 2007
Uplinks: 0, Generation 2

Professor Elliot's Cabinet
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    From Lateralis
    Found and Lost: a poem
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    Kangaroo Rats
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    Robotics & Mechanized...
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    Where forward thinking terrestrials share ideas and information about the state of the species, their planet and the universe, living the lives of science fiction. Introduction
    Featuring Powers of Ten by Charles and Ray Eames, based on an idea by Kees Boeke.
    I have a question that I have asked many other people...
    Do you believe that the human race can achieve peace on the entire planet?
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    ...rarely drink water. Instead, they have a highly water-efficient metabolism (their kidneys are at least four times more efficient at retaining water and excreting salt than those of humans) and manufacture water through a metabolic process called oxidative phosphorylation.

    One special feature of the kangaroo rat is the animal's efficient kidneys. The kangaroo rat has a longer loop of Henle in the nephrons which permit a greater magnitude of countercurrent multiplication and thus a larger medullary vertical osmotic gradient. As a result, these rodents can produce urine that is concentrated up to an osmolarity of almost 6,000 mosm/liter, which is five times more concentrated than maximally concentrated human urine at 1,200 mosm/liter. Because of this tremendous concentration ability, kangaroo rats never have to drink; the H2O produced metabolically within their cells during oxidation of foodstuff (food plus O2 yields CO2 + H2O + energy) is sufficient for their body. Kangaroo rats lose so little water that they can recover 90% of the loss by using metabolic water gaining the remaining 10% from the small amount of water in their diet. Kangaroo rats lose water mainly by evaporation during gas exchange and gain water mainly from cellular metabolism.


    So if kangaroo rats can do this, would there be a way to create an artificial way of getting access to clean water this way? Or am I just being too hopeful?
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