Dunes inside Victoria |
Dunes inside Victoria |
Nov 20 2006, 09:20 PM
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#46
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Member Group: Members Posts: 155 Joined: 8-February 04 From: Phoenix, AZ USA Member No.: 9 |
Just out in the most recent Earth and Planetary Science Letters:
Claudin, P., and Andreotti, B., 2006, A scaling law for aeolian dunes on Mars, Venus, Earth, and for subaqueous ripples: Earth and Planetary Science Letters, v. 252, p. 30-44. Read, discuss, and enjoy! -------------------- Tim Demko
BioLink site |
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Nov 20 2006, 09:32 PM
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#47
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Ambitious title and very interesting abstract. If only I had 30 dollars in my pocket . . .
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Nov 21 2006, 06:03 AM
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#48
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
It's truly unfortunate that it is so expensive for people to access scientific journals these days. It just isn't right. The scientists who did all of the hard work to advance human knowledge didn't intend for their discoveries to be hidden behind a veil of money. I suppose it could be argued that free access is available to those who have access to a good library. If you dig around on the net though, sometimes you can find what you are looking for. We need a new paradigm for the distribution of knowledge.
-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Nov 21 2006, 09:57 AM
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#49
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Gottit! Thanks CosmicRocker
tdemko thanks for your kind offer too. |
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Nov 21 2006, 02:44 PM
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#50
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Member Group: Members Posts: 240 Joined: 18-July 06 Member No.: 981 |
It is a bit hard to take. The cost of distribution is very low so why charge $30? Limited market perhaps. Most authors have rights to their own articles as well and can distribute them. We don't need these barriers.
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Nov 21 2006, 03:40 PM
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#51
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Member Group: Members Posts: 242 Joined: 17-February 04 From: Ohio, USA Member No.: 34 |
Tim,
Thanks very much for pointing us to that article and thanks Cosmicrocker for help finding it.. |
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Nov 22 2006, 01:51 AM
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#52
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Newbie Group: Members Posts: 17 Joined: 20-April 05 Member No.: 324 |
It's truly unfortunate that it is so expensive for people to access scientific journals these days. It just isn't right. Indeed! Taxpayers are unable to read about the work that they paid for without paying for it a third time. The first time is in the form of government grants that pay for the research. The second time in the form of government funding of univesities, who are the primary buyers of the scholarly works. Research is an expensive activity. And space science is very, very expensive. |
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Nov 22 2006, 06:15 PM
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#53
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Member Group: Members Posts: 128 Joined: 5-May 04 Member No.: 74 |
Also available on Arxiv.
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Nov 22 2006, 08:09 PM
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#54
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Member Group: Members Posts: 646 Joined: 23-December 05 From: Forest of Dean Member No.: 617 |
We need a new paradigm for the distribution of knowledge. Taxpayers are unable to read about the work that they paid for without paying for it a third time. The first time is in the form of government grants that pay for the research. The second time in the form of government funding of univesities, who are the primary buyers of the scholarly works. Good news, folks! http://en.wikipedia.org/wiki/Open_access http://www.doaj.org/doaj?func=expand We are not alone! -------------------- --
Viva software libre! |
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Nov 23 2006, 07:06 AM
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#55
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Member Group: Members Posts: 112 Joined: 17-November 05 From: Canberra Member No.: 558 |
Just out in the most recent Earth and Planetary Science Letters: Claudin, P., and Andreotti, B., 2006, A scaling law for aeolian dunes on Mars, Venus, Earth, and for subaqueous ripples: Earth and Planetary Science Letters, v. 252, p. 30-44. Read, discuss, and enjoy! As predicted, Martian aeolian bedforms are made of sand, albeit somewhat finer than on earth. Their prediction of 87 microns is close to the measured 100 microns. Unlike on earth, Martian aeolian sands also contain a singificant fraction of smaller grains, up to 500 microns, and are thus more poorly sorted. Jon |
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Nov 23 2006, 03:48 PM
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#56
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
http://hiroc.lpl.arizona.edu/images/TRA/TRA_000861_2580/
'North Polar Dunes' from HiRise showing a similar quasi-regular network structure to those in Victoria. |
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Dec 1 2006, 05:02 PM
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#57
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Member Group: Members Posts: 559 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
New detail in the dunes inside Endurance crater are visible in the new HiRISE images..
Backshell to Endurance image clip by Emily? The east-west crests appear to fan out from the 3-o'clock position, and trail off towards 7 o'clock in the 3 or 4 long ripples we saw when inside the crater. The bigger crest system broadly north-south seems to over-ride the little east-west ripples. Looks like a prevailing easterly wind involved? Kenny |
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