Friday, October 5, 2012

Curiosity Rover Prepares for Internal Sandblasting - Scientific American [fornadablog.blogspot.com]

Curiosity Rover Prepares for Internal Sandblasting - Scientific American [fornadablog.blogspot.com]



[fornadablog.blogspot.com], Curiosity Rover Prepares for Internal Sandblasting - Scientific American

Curiosity Rover Prepares for Internal Sandblasting
Enlarge NASA/JPL-Caltech/MSSS MORE IMAGES
 Hottah Water: Curiosity Traverses an Ancient Martian Streambed

NASA’s Curiosity rover has an unwanted film lining its mouth. But instead of swishing around some water or mouthwash as a human might, the Mars-cruising robot plans to use a bit of Red Planet sand.

The rover, which landed on Mars in August, is approaching a patch of sand named Rocknest [to the right of the black rock outcrop in the photo above]. In a few weeks’ time mission managers plan to fire up Curiosity’s onboard chemistry labs to analyze soil samples from the area.

But first the rover must expunge the faint but lingering taste of its home planet. “By virtue of just being on Earth you get a residual oily film that is impossible to avoid,” Daniel Limonadi, the lead systems engineer for the rover’s surface sampling and science system at the NASA Jet Propulsion Laboratory in Pasadena, Calif., said during an October 4 teleconference with reporters.

Limonadi later explained in an e-mail that the film is technically known as adventitious carbon. “It turns out we don’t really have a good handle of where this film comes from,” he wrote. “We just know that when surfaces are exposed to air environments on Earth they quickly accumulate this very thin film.”

To scrub away that film, he said in the teleconference, the rover will scoop up sand from Rocknest with its robotic arm, then use a vibration device to shake the sand around inside the sample-collecting hardware at a “tooth-rattling” 8 g’s. “We take the sand sample, this fine-grained material on this dune ripple, and we effectively use it to rinse our mouth three times and then spit out,” Limonadi said.

After the completion of the sand cleanse, which is expected to take a week or more, Curiosity will be ready to transfer samples from its scoop to the SAM (Sample Analysis at Mars) and CheMin (Chemistry and Mineralogy) instruments to analyze the chemical composition of the sand.

â€"John Matson

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Question by cant_think_today: Will "Jack and Water" vs. "Jack on The Rocks" prevent a hangover? I LOVE "Jack Daniels," but sometimes I get a hangover from drinknig too much. If I switch from "Jack on The Rocks" to "Jack and Water," will that prevent the hangover? Hey DZRTJUL, is that surgery or sugary... Just checking. In my condition, I would hate to go in for surgery! Best answer for Will "Jack and Water" vs. "Jack on The Rocks" prevent a hangover?:

Answer by tank546down
Maybe if Jill Got on Jack once in awhile then he wouldn't have to cheat on her!

Answer by DZRTJUL
It will help for sure. With the Jack and water you are getting more water which is always a good thing. You are smart not to mix it with Coke or something else surgery, that is always a mistake!! Cheers:)

Answer by Rich
Dont water it down, it does not taste the same, and if you enjoy the taste you will be disappointed. Make sure you eat before you drink, and about a half hour before you go to bed, drink 2 full glasses of water. Also, decent hangover cure.... Chicken Nuggets from Mcdonalds. I hate mcdonalds, but the chemicals settle your stomach. Need best answers please :)

Answer by JJ
Most of a hangover is supposedly dehydration so jack and water should help stop you from having as much of a hangover.

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