WCL (Wet Chemistry Lab) sample |
WCL (Wet Chemistry Lab) sample |
Jun 25 2008, 12:18 AM
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
We'll soon know what kinds of crops we can grow on Mars! Bonus, the fruits will be already freeze-dried!
Handy list of preferred pH's of common garden plants. -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jul 13 2008, 10:20 AM
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#2
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Member Group: Members Posts: 524 Joined: 24-November 04 From: Heraklion, GR. Member No.: 112 |
Some tidbits from the July 1st entry of Dr Tom Pike's diary for the BBC News website :
QUOTE "In particular, if the soil is alkaline this may go a long way to explaining the Viking experiment. Fifteen years ago, one of my Phoenix colleagues, Richard Quinn, worked out that just such a soil would explain the Viking results." and QUOTE "The data streams down, filing up our computer screens with scans from all the sensors. There's a quiet smile on Richard's face as he concentrates on just one of these lines - the soil is just about as alkaline as he expected. It looks like one of the biggest mysteries from previous missions to Mars has been cracked by Phoenix. It was the chemical reactions of nutrients with the chemistry of the soil, not life, that Viking saw back in 1976. " Before touchdown, Dr. Quinn was quoted in an article at the SETI site : QUOTE When asked, "What would be the best possible outcome from these experiments?" Quinn replied, "A sample with high salt content and reasonable ph which would reveal a history of water, coupled with results from the Thermal Evolved Gas Analyzer that found organics in the soil." Then, you'd have both water and organics. Perhaps evidence of life? So, If the alkaline pH supports the "superoxides in soil" Viking explanation, why were teran gardeners encouraged to have high hopes for martian asparagus ? Anyone care to enlighten us ? |
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