MSL - Stopover on the Road to Glenelg - Arm Commissioning, Commissioning Activity Period 2 - Sols 30 through 37 |
MSL - Stopover on the Road to Glenelg - Arm Commissioning, Commissioning Activity Period 2 - Sols 30 through 37 |
Sep 8 2012, 04:13 AM
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#46
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Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
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Sep 8 2012, 04:16 AM
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#47
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Junior Member Group: Members Posts: 36 Joined: 28-May 08 Member No.: 4152 |
There's a self-portrait taken with MAHLI up - just the camera mast, and upside-down and with the dust-covered lens-cover on, but it's most definitely a curious robot peering at itself.
(Quick flipped and colour-stretched version...) Edit: fredk beat me to it. Still, it's a Martian robot! |
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Sep 8 2012, 04:42 AM
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#48
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Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
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Sep 8 2012, 04:49 AM
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#49
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
Hello there! ... It's clearly a smarter robot. It recognizes itself.-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Guest_Oersted_* |
Sep 8 2012, 05:52 AM
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#50
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Guests |
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Sep 8 2012, 06:12 AM
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#51
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Member Group: Members Posts: 242 Joined: 21-December 04 Member No.: 127 |
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Sep 8 2012, 07:06 AM
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#52
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Member Group: Members Posts: 148 Joined: 9-August 11 From: Mason, TX Member No.: 6108 |
The original looked similar to issues with 40-year old color film I have successfully developed and recovered images from, so I used the same techniques: white balanced the most offensive color (the blue component), used a moderate stretch leaving the impression that we ARE looking through a dusty lens, applied a 3-pixel dust filter, resized smaller before sharpening (more apparent sharpness at that scale), and used a painting restorer's trick of using complementary flat colors to fill voids. I know we'll have a better image as soon as the dust cover is opened, but this left me feeling more like I was there--with dusty sunglasses.
(edit: re-associated the upload) -------------------- --
Don |
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Sep 8 2012, 11:16 AM
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#53
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Member Group: Members Posts: 276 Joined: 11-December 07 From: Dar es Salaam, Tanzania Member No.: 3978 |
I do believe she winked at me... Why would they need the LEDs in this case? -------------------- |
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Sep 8 2012, 11:22 AM
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#54
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Member Group: Members Posts: 276 Joined: 11-December 07 From: Dar es Salaam, Tanzania Member No.: 3978 |
Big crystals do have to form at depth, but you can have rocks with crystals that formed at depth but then the crystals were entrained in a liquid magma that reached the surface & cooled rapidly. (Look up "porphyritic") Interesting... thanks for the education Emily. -------------------- |
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Sep 8 2012, 12:14 PM
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#55
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Crystal size is a direct result of how fast the rock "solution" cooled. (In reality, it is more of a partial melt - I like the term "crystal mush").
Crystallization is all about competition. If you have a bunch of plagioclase molecular structures trying to crystallize out quickly you'll get a whole bunch of nucleation points all over the place. They compete with each other so that each nucleation site is trying to grab and assemble ions in the presence of a close neighbor. Lotsa competition, so the crystals stay really, really small. Many of them, but tiny. If you have the same plag-containing mush but cool it very slowly, then you get only a few nucleation points. The ions in solution can leisurely find their way to the nucleation point and they have the time to be able to build up a big honkin' crystal. Only a few nucleation points, but really big crystals. (For classifying grain sizes, it can be a sliding scale. During field work this summer we were using the term "granular groundmass dacite" for some of the teeny, but still evident, crystals under a 7x loupe. The official terms are dacite - no xtals present, and granodiorite - visible xtals present. All of these have the same composition range, it is just about crystal size, which is about crystalization speed, which is usually about depth.) [[Really fun home experiment - make ice cream using liquid nitrogen. From what I've heard the smaller ice crystal size due to the uber-rapid cooling makes it totally dreamy.]] -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Sep 8 2012, 12:20 PM
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#56
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Liquid nitrogen ice cream recipe here
http://chemistry.about.com/od/demonstratio.../n2icecream.htm -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Sep 8 2012, 02:32 PM
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#57
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Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497 |
Why would they need the LEDs in this case? To verify they were working. It also gives us some data on the dust loading on the cover. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Sep 8 2012, 02:53 PM
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#58
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Senior Member Group: Members Posts: 1619 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
This self-portrait pic, it's an amazing shot ! I hope that they will do one other, with the MAHLI lens dust cover removed.
My take. -------------------- |
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Sep 8 2012, 03:29 PM
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#59
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Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497 |
This self-portrait pic, it's an amazing shot ! Thanks. Note on terminology: this isn't what we call the self-portrait. That's a multi-image mosaic of the whole rover taken with MAHLI, still in the planning process. This image is usually nicknamed for a Pixar character that visually looked something like the RSM. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Sep 8 2012, 06:47 PM
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#60
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Junior Member Group: Members Posts: 31 Joined: 10-August 12 Member No.: 6526 |
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