The Kitchen Junk Drawer, Exchanges that need to be put somewhere |
The Kitchen Junk Drawer, Exchanges that need to be put somewhere |
Oct 11 2010, 05:54 PM
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Member Group: Members Posts: 754 Joined: 9-February 07 Member No.: 1700 |
Re: SF Valley -- My McMansion will be on the approaching side of Endeavour. In Mars gravity, maybe I could hit a golf ball all the way to Stu's Crater!
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Feb 10 2013, 09:43 AM
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Senior Member Group: Members Posts: 1045 Joined: 17-February 09 Member No.: 4605 |
The Oxford dictionary defines water as a colourless, transparent, odourless, liquid which forms the seas, lakes, rivers, and rain ..... By definition the other H2O phases, ice and vapour, are not water. Ice and water vapour have been identified, but to the best of my knowledge water has not been detected on mars other than maybe perhaps on the Phoenix strut which was not a native Martian event and really should not count. But the evidence of water in the past, of varying pH, is pretty convincing.
The elementary high school chemistry argument is something of a red herring. Early on Martian water may well he had a reasonably high pH. In the later, volcanic period then it is true that acidic water weathers basalt and basalt buffers acidic water. But in a system where acid is being constantly replenished by volcanic influences then regardless of the presence of basalt we can end up with acidic water near the surface and deeper alkaline water. The plethora of potential mixing relationships can result in products such as hematite concretions and Calcium sulphate deposition. |
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