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#21
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"ahh" writes:
There searching for past water evidence be examing rocks (pretty simple). I keep wondering why they're looking for evidence of water, while they admit that that there's ubiquitous visual evidence of it. What else could explain the huge gully cutting through the wall of Guseve crater? All rocks come from bedrock. It is better to get bedrock that is broken up than bedrock that is one big sheet. The lander can only "shave" It can not dig. I'm not sure what difference you have in mind, but the rover can lock 5 wheels and spin the 6th down at least 30 cm. They did imply they didn't want to go in the crater on Spirit. When? I think you implied on landing earlier, which wasn't the concern I heard raised. They were mostly worried about landing with a high horizontal speed, which was apt to tear the bounce bags. That it might also have also taken them into that crater would have been bad luck probably if it was deep and didn't have a good way out, unlike the lucky Opportunity. One reason is perfectly clear by looking at Opportunity pictures is all the fine material collects in the hole. Dirt blows in but doesn't blow out. Good point. I've been wondering why nobody has brought that up with them. I'm thinking that all smallish craters on Mars should have in them pretty-much the same wind-blown mixture of stuff from everywhere else, based on my memories of the Viking-era dust storms. But it's an unfamiliar environment; maybe there's just a small amount of very fine stuff that blows around, giving a dense fog that slowly settles out to a thin coat and sand-type drifts only shift back and forth fairly near the area from which they originated (as on Earth, though the Sahara blows at least as far as England). They might also be happy that luck put them in a crater where they would not dare to drive, as long as they think they can get out. |
#22
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#23
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#25
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"Gary W. Swearingen" wrote in message
briefings. (I have no doubt that the "mission control" TV is staged because I saw one of the bosses start some "spontaneous" applause as an obvious response to some wispering in his ear from the TV floor director, in a TV wide shot not aimed at them. That's how rumours and stories get started and spread. You have no idea who the guys were, what was "whispered" by the "TV director", or why he was clapping. Geez, give the assumptions and ridiculous suspicion a rest. You're not being brainwashed. Jon |
#26
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Cardman wrote:
A lava flow according to them, but yes there is water everywhere. Does not that ground look a touch wet to you? No. BTW, liquid water cannot exist over almost all the Martian surface -- the pressure is too low. I believe that's the case at that location. Paul |
#27
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"Jon Berndt" writes:
That's how rumours and stories get started and spread. You have no idea who the guys were, what was "whispered" by the "TV director", or why he was clapping. Geez, give the assumptions and ridiculous suspicion a rest. You're not being brainwashed. Good of you to point that out, and I well-considered that before sharing my conclusions. But I'm not worried about being brainwashed; I thought everying knew their (and anyone's) celebrations were affected by the presence of public cameras. I just thought it was funny and sad evidence of the ineptitude of NASA PR. Here are more details that might give slightly more credibility to my interpretation: The floor director was obviously that -- frequently seen scurrying around and wispering to the on-air hostess and her guests, with that typical ducking under the camera motion. The director scurried over to the boss who had earlier been an on-air guest and was then standing away from the hostess among the consoles. The rather minor event which obviously prompted the whispering occurred just before the whispering without any spontaneous applause which didn't come until the whisperer scurried away from the boss (after only 1 or 2 seconds of whispering) who then immediately roused his crew. |
#28
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Stephen Souter wrote in message ...
In article , (Hobbs aka McDaniel) wrote: Maybe part of the problem is just how they communicate with the public. Their press conferences are geared up for people with only a 7th or 8th grade education. It comforts that audience to hear the kinds of stuff spouted at the press conference. Somebody like you needs a higher level of info to think about. Press briefings are geared towards those who are not specialists in the field(s) in question. That includes those with university degrees in other fields. Someone with a doctorate in medicine or physics or media studies watching on NASA TV, for example, can be expected to have had more than a 7th or 8th grade education, but that does not necessarily mean they would not also be at sea if Squyres et al started spouting at them the specialist jargon of the practicising geologist. I picked 7th/8th grade because in the mainstream movie business that is considered to be the understanding level of the majority of viewers and it seems to me that NASA has added a lot of showbiz techniques to their public presentations. Those who want the more technical details will need to wait for the scientific papers to be published, -McDaniel |
#29
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On Tue, 27 Jan 2004 12:57:41 +1100, Stephen Souter
wrote: In article , (Hobbs aka McDaniel) wrote: Those who want the more technical details will need to wait for the scientific papers to be published, What! You want us to have patience! This is the twenty first century man! We got 24 hour new channels that display rover updates every two hours! Tom Merkle |
#30
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It's the LAYERING of the rocks which is getting the scientists excited.....
http://science.nasa.gov/headlines/y2...ianiplanum.htm " If the hematite occurs as a thin layer within a pile of layers, then it's likely to have formed in a long-ago lake" |
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