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Egressing The Dune, ... soon
akuo
post May 6 2005, 11:24 AM
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I decided to add a new topic since we are all following it closely and something is bound to happen soon. Jim Erickson said that earliest Oppy would be making her move would be on Friday, but Steve's update might be read that it isn't happening so soon. I doubt they will be doing anything during the weekend, so Monday maybe?

Anyway the Planetary Photojournal (http://photojournal.jpl.nasa.gov/gallery/snt) has some images from sandbox testing at JPL.


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djellison
post May 6 2005, 11:34 AM
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A nice slope in the background from testing Spirit's cilmbing-up-the-hills ability smile.gif

Note the 7 degree toe-in on the FR wheel smile.gif

Doug
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TheChemist
post May 6 2005, 12:00 PM
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Even the sand is stuck on the wheels covering their outside almost completely !
This is the mother of all realistic martian simulations smile.gif
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Nix
post May 6 2005, 12:23 PM
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They indeed found a very good match for the soil. Hope they manage to avoid it in times coming. smile.gif


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tedstryk
post May 6 2005, 01:07 PM
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QUOTE (NIX @ May 6 2005, 12:23 PM)
They indeed found a very good match for the soil. Hope they manage to avoid it in times coming.  smile.gif
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At this rate, when we finally have a human Mars landing in the year 2105, MGS will provide CPROTO coverage! biggrin.gif


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Tman
post May 6 2005, 01:14 PM
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Great images, but it's more a sand trap like the sand-holes at Gusev than a dune huh.gif
Probably it was impossible to simulate such a dune.


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dot.dk
post May 6 2005, 01:15 PM
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QUOTE (tedstryk @ May 6 2005, 01:07 PM)
QUOTE (NIX @ May 6 2005, 12:23 PM)
They indeed found a very good match for the soil. Hope they manage to avoid it in times coming.  smile.gif
*



At this rate, when we finally have a human Mars landing in the year 2105, MGS will provide CPROTO coverage! biggrin.gif
*



And Spirit has just reached the top of Husband Hill tongue.gif

Regarding the sandbox pictures. I think it looks like the rover is in a hole, not much room to drive out of the dune. How come?


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Gray
post May 6 2005, 01:46 PM
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Thanks for supplying the link to those images. I'm really curious as to what they're using as a proxy for the Martian dust. At first I thought it might be talcum powder, then I wondered if it might be lime. (What IS that white powder?).
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Burmese
post May 6 2005, 02:38 PM
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In one of the photos you can partially see a box that probably containes some of the stuff they are laying down the word "Pure..." can be made out. Anyone able to do some more detective work?

http://photojournal.jpl.nasa.gov/jpeg/PIA07894.jpg
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jaredGalen
post May 6 2005, 03:13 PM
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QUOTE (Burmese @ May 6 2005, 03:38 PM)
In one of the photos you can partially see a box that probably containes some of the stuff they are laying down  the word "Pure..." can be made out.  Anyone able to do some more detective work?

http://photojournal.jpl.nasa.gov/jpeg/PIA07894.jpg
*

Almost looks like powder for making custard. tongue.gif


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dot.dk
post May 6 2005, 03:28 PM
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How do they compensate for the 1/3 gravity on Mars? The test rover does not look like it's much lighter than the real ones.

Strap some helium balloons to the thing biggrin.gif


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aldo12xu
post May 6 2005, 03:32 PM
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I'm reminded of two things, both sold in those types of bags: lime and drywall powder........

Lime is sold as quicklime, which is calcium oxide (CaO) and as hydrated lime, which is calcium hydroxide Ca(OH)2.

Drywall is gypsum, which is a calcium sulfate CaSO4*2(H2O)


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Burmese
post May 6 2005, 04:00 PM
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A blow up of the TIFF version of the photo gets oh-so-close to displaying the mfgr. name on the box. Anyone recognize that logo?
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TheChemist
post May 6 2005, 04:13 PM
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Anyone from the States recognize the logo on the box ?
rolleyes.gif
Attached thumbnail(s)
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djellison
post May 6 2005, 04:14 PM
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'

Doug
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