The Riddle of Mars the Planet
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In our eReader you can find the full English version of the book. Read The Riddle of Mars the Planet Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Riddle of Mars the Planet
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It remains to be seen whether the water avail- able from the melting caps is likely to suffice for the full irrigation of all Mars' blue-green areas.
CHAPTER V WATER FROM POLAR CAPS INSUFFICIENT A GOOD portion of the water available from a melting polar snow cap would, on its being used for irrigation, be lost by sinking into the soil and entering into chemical combination and also in the production of vegetation, and would not in con- sequence be again evaporated into the martian air as water ...vapour. The polar caps should therefore decrease in size year by year. They have, however, so far not been seen to do so.
This annual loss of water, as well as the deficiency from the north polar cap referred to in the last chapter, is, therefore, made good in some way, and an additional water supply other than that derived from the melting polar caps must, for these reasons alone, be, consequently, somewhere available on Mars.
It was suggested in the paper referred to in the preface that such extra supply is obtainable in the extensive blue-green areas, and more especially WATER FROM POLAR CAPS 41 so in the desert ' Oases ' of Mars, either as natural springs or more likely from underground supplies artificially brought to the surface of the planet by artesian or deep bore wells.
What to read after The Riddle of Mars the Planet?
You can find similar books in the "Read Also" column, or choose other free books by C E Housden to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It remains to be seen whether the water avail- able from the melting caps is likely to suffice for the full irrigation of all Mars' blue-green areas.
CHAPTER V WATER FROM POLAR CAPS INSUFFICIENT A GOOD portion of the water available from a melting polar snow cap would, on its being used for irrigation, be lost by sinking into the soil and entering into chemical combination and also in the production of vegetation, and would not in con- sequence be again evaporated into the martian air as water ...vapour. The polar caps should therefore decrease in size year by year. They have, however, so far not been seen to do so.
This annual loss of water, as well as the deficiency from the north polar cap referred to in the last chapter, is, therefore, made good in some way, and an additional water supply other than that derived from the melting polar caps must, for these reasons alone, be, consequently, somewhere available on Mars.
It was suggested in the paper referred to in the preface that such extra supply is obtainable in the extensive blue-green areas, and more especially WATER FROM POLAR CAPS 41 so in the desert ' Oases ' of Mars, either as natural springs or more likely from underground supplies artificially brought to the surface of the planet by artesian or deep bore wells.
What to read after The Riddle of Mars the Planet?
You can find similar books in the "Read Also" column, or choose other free books by C E Housden to read onlineMoreLess
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