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Post by LunarOrbit on Jun 4, 2005 15:58:45 GMT -4
Unknown
Discuss this intelligently or leave. The others have given you answers to your questions which you have ignored.
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Post by unknown on Jun 4, 2005 17:04:09 GMT -4
The others have given me unintelligent answers to my questions. Please go to marsrovers.jpl.nasa.gov/gallery/video/movies/spirit/243Sols.movie.movAt the end of that movie you can see the shadow of Spirit that extends for large part and it is almost close to the horizon. Since Spirit is using wide-angle lens (for what reason?)looking at the ground, that means Spirit pojects a shadow of many kilometers. Don't you think that movie is faked?Mars looks like a little balloon. Ridiculous. ;D ;D ;D
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Post by JayUtah on Jun 4, 2005 19:09:58 GMT -4
At the end of that movie you can see the shadow of Spirit that extends for large part and it is almost close to the horizon.
No, it doesn't. It extends, at most, a couple meters. That's based on using the rover's wheelbase as a rough estimate of scale in the picture.
Since Spirit is using wide-angle lens (for what reason?)
For the same reason you have side windows in your car. The video comes from the camera used to navigate the rover across the terrain, not the one used to acquire scientific imaging.
looking at the ground, that means Spirit pojects a shadow of many kilometers.
Show your computation proving the shadow is "many kilometers" long.
Don't you think that movie is faked?
No.
Mars looks like a little balloon. Ridiculous.
That's what everything looks like in a wide-angle lens pointed downwards from the horizontal. How many wide-angle lenses have you personally used?
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Post by sts60 on Jun 4, 2005 19:56:53 GMT -4
And, yes, we can "drive" a probe there, or to Jupiter, Saturn, and beyond, with great accuracy. That's because there are people who actually learn and do things". With compliments. But explain how you can do it. Start with orbital elements of Earth and Mars (both quite well known, based on principles going back to Newton and Kepler). Select a transfer orbit based on your launch vehicle's capability. Since you usually spend the least money possible for a reasonable trip time, the orbits actually used tend to look much the same, and the windows occur every two years. Launch into Earth orbit. Pick your departure time to match your transfer orbit, point in the right direction and burn for the appropriate time. Coast. Update your observed position based on radio tracking of the spacecraft, and make course corrections as necessary. Make a burn at the appropriate time to convert your transfer orbit to a Mars orbit. You can also do things like aerobraking to save on propellant needs, or even direct insertion into the atmosphere if you want to be spectacular about it. That's it. I suggest you read the Basics of Space Flight primer if you're really interested.
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Post by Data Cable on Jun 4, 2005 21:40:55 GMT -4
Yes, I have no desire to learn craps. Nor do I... but then again, I've never had much interest in dice games or gambling. ;D ;D ;D
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Post by unknown on Jun 5, 2005 2:45:44 GMT -4
Finally I have found the proof that the movies of Spirit are faked. ;D ;D ;D
Go to: marsrovers.jpl.nasa.gov/gallery/press/spirit/20050308a.html and save the movie on your desktop. Run Corel Photo-Paint and open that movie. Go to frame 60: look at that strange stone almost in the middle of the scene. Go to frame 64: look at the same strange stone only a little bigger.
Can stones on Mars procreate other identical stones?
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Post by Data Cable on Jun 5, 2005 6:02:03 GMT -4
Can stones on Mars procreate other identical stones? [/b][/quote] Why, yes they can. As a matter of fact, entire groups of stones on Mars procreate not only other identical stones, but other identical formations of stones, and identical sand patterns on which for them to sit. That, or it's just the same patch of ground shot from slightly different angles. Your pick. ;D ;D ;D
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Post by unknown on Jun 5, 2005 6:44:40 GMT -4
With compliments. You also have seen the second scene shows the identical "formations of stones".
There is only a little problem: if the camera is moving on the right and that strange stone has gone out of the scene on the left, how could the camera film it "from slightly different angles" in a shortest time?
Does also the camera jerk along?
In 1969, at the beginning of the space race, cameras were not yet reliable and jerk along. But today why does Nasa use 6 frame per second and not the standard (30 frame per second?). Have not they enough money to buy better cameras?
Why does Nasa use that orrible wide-angle lens?
INTELLIGENT ANSWER: to musk their films are faked.
Nasa would have gone to Mars to demonstrate that USA are the most powerful country in the world.
But movies of Spirit are too ridiculous: only children see they are faked. ;D ;D ;D
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Post by Data Cable on Jun 5, 2005 7:33:10 GMT -4
if the camera is moving on the right and that strange stone has gone out of the scene on the left, how could the camera film it "from slightly different angles" in a shortest time? The vehicle onto which the camera is being built would have rotated, causing the rock to come into the frame again. Only a child can be thinking of such a simple answer. ;D ;D ;D
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Post by LunarOrbit on Jun 5, 2005 10:47:27 GMT -4
This has already been explained to you. The Mars rovers use wide angle lenses for navigation... they need to see not just what is in front of them but also to their sides. It's the same reason people have peripheral vision.
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Post by LunarOrbit on Jun 5, 2005 10:49:15 GMT -4
But movies of Spirit are too ridiculous: only children see they are faked. ;D ;D ;D So you're admitting that you're a child then? Just as we suspected.
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Post by sts60 on Jun 5, 2005 11:38:35 GMT -4
In 1969, at the beginning of the space race, cameras were not yet reliable and jerk along. But today why does Nasa use 6 frame per second and not the standard (30 frame per second?). Have not they enough money to buy better cameras? Another basic error of fact. The cameras take still images. The PR-type images you're looking at are placed together so you see time-lapse animation, just like the famous flower-unfolding series of still images.
The fact that you think the images are taken by a video camera rather tells us, once again, that you don't understand the most basic facts about your subject. Aren't you embarassed by making claims based on such obvious ignorance? Aren't you interested in learning anything?
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Post by unknown on Jun 5, 2005 13:34:47 GMT -4
I wrote: "But movies of Spirit are too ridiculous: only children see they are faked".
I wanted to say: "also children see they are faked" obviously. ;D ;D ;D
LunarOrbit wrote: "This has already been explained to you. The Mars rovers use wide angle lenses for navigation... they need to see not just what is in front of them but also to their sides. It's the same reason people have peripheral vision".
Spirit looks like a human eyed ostrich. It can turn its head in all directions. It doesn't need wide-angle lens to move safely. This is the biggest crap I have heard till now. ;D ;D ;D
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Post by LunarOrbit on Jun 5, 2005 13:40:41 GMT -4
Like I said before, children are pretty gullible. They believe in Santa Claus and the Tooth Fairy, so they aren't exactly the best examples you could use.
On the other hand, I could say that scientists and engineers from around the world (including countries hostile towards the United States) believe the moon landings really happened. I think their opinions carry a bit more weight than those of children.
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Post by unknown on Jun 5, 2005 13:53:18 GMT -4
datacable wrote: "The vehicle onto which the camera is being built would have rotated, causing the rock to come into the frame again".
You don't understand anything about images and movies: to film the same stone from slightly different angles, Spirit had to move quickly on the left since the strange stone has gone out of the scene on the left. Spirit could not do it so quickly. ;D ;D ;D
And I repeat: LunarOrbit wrote: "This has already been explained to you. The Mars rovers use wide angle lenses for navigation... they need to see not just what is in front of them but also to their sides. It's the same reason people have peripheral vision".
Spirit looks like a human eyed ostrich. It can turn its head in all directions. It doesn't need wide-angle lens to move safely. This is the biggest crap I have heard till now. ;D ;D ;D
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