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Ah, classic Clovis point. Well done, that man!
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Friendly Rabid Atheists (mostly) |
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No we don't. That's why the fun & games section is around. Training. It's to be closed when someone comes up with something original and funny. My bet's on dark energy being found first.
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"Ignorance more frequently begets confidence than does knowledge" -- Charles Darwin "Your right to hold an opinion is not being contested. Your expectation that it be taken seriously is." -- Jason Thompson Meet the OOONG TOE. |
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The left hand knows full well what the right hand is doing, but quietly ignores it. |
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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Good example. I took some similar photographs using mountains some years ago to address the claim that foreground objects in lunar photographs can move significantly though the background remains unchanged. My first attempts actually overshot the mark. This is what laymen don't understand: parallax effects are not subtle. It requires surprisingly little movement between two vantage points in order to achieve a fairly large parallax shift.
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Ah geometry... one half of a lovely G&T.
That sort of stuff is often not as obvious as you might initially expect.
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The left hand knows full well what the right hand is doing, but quietly ignores it. |
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Yes, I was surprised myself. The distance between camera and stool/deck chair is approx. 20 m. The two vantage points were approx. a mere 80 cm apart.
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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(I didn´t have Gin and Tonic when taking the pictures! )
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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At a guess, geometry and trigonometry.
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Gillian "Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'" "You can't erase icing." "I can't believe it doesn't work! I found it on the internet, man!" |
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Sorry, yes, geometry & trigonometry.
They were paired up at my high school. I had assumed this was commonly done. Let that be a lesson to myself - assumptions will often lead to error. ETA - That'll teach me for going for the cheap jokes.
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The left hand knows full well what the right hand is doing, but quietly ignores it. |
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Rob |
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Of course! I should have found out myself. Gillianren did (as always, thanks)
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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Spread the Love! |
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I suspect that any misunderstanding is compounded by the MER panoramic camera's relatively narrow field of view of 16°. The lenses behave more like telephoto lenses than like the "50mm" lenses that most people are used to (which have a field of view in the neighborhood of 40°), and that tends to compound the problem of trying to intuit the three-dimensional arrangement of the objects in the picture since a tight field of view tends to compress apparent distances in the resulting photograph.
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FWIW the (mistaken) gin & tonic reference worked for me. I even smiled a little.
dhd40, it might work even better in grayscale, considering the rover pics are too.
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"Ignorance more frequently begets confidence than does knowledge" -- Charles Darwin "Your right to hold an opinion is not being contested. Your expectation that it be taken seriously is." -- Jason Thompson Meet the OOONG TOE. |
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Rather than making poorly informed visual guesses at the range to a rock in a MER stereoscopic image pair, a quantitative measurement tool exists. To determine range and distance between points in MER stereoscopic pairs (both PanCam and NavCam), use Clark Andersen's utility AlgorimancerPG v.4.0.5. found at
http://www.clarkandersen.com/RangeFinder.htm Many simple questions (Which camera took this image? Are these two images stereoscopic pairs taken simultaeously? How much time elapsed between when these images were taken? Which wavelength filter was used in this image?) can be answered by understanding the file naming convention. A basic breakdown is available at http://sse.jpl.nasa.gov/news/display.cfm?News_ID=7761 and a more comprehensive document with additional useful information is available at http://pds-geosciences.wustl.edu/mer...sers_guide.pdf |
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Year 12, full year - Applied Math, and Calculus. Apologies for the derailment, just wanted to close out that area of chit-chat.
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The left hand knows full well what the right hand is doing, but quietly ignores it. |
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psst! Don´t tell the Moon Hoaxers!
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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Although, grayscale isn´t that easy on Titan, as you can easily see from the typical Titan tint (that´s where my backyard is). My head explodes with dark forbodings that, again, I will be accused of faking ![]()
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If everyone had even a basic grasp of scientific principles, this planet would be a better place (Phil Plait) Die Lücke, die wir hinterlassen, ersetzt uns vollkommen [The gap we will leave behind will take our place entirely] (Carl Heinz Schroth) 1 + ei*pi = 0 |
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If you look closely, you can clearly see an artificial structure, it looks like it's in the shape of a humanoid face.
We need higher resolution photos! ![]()
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The left hand knows full well what the right hand is doing, but quietly ignores it. |
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Or do I need to wastefully devote my time to creating a web page which clearly explains and shows what I just described? I'm not trying to mess with you maggador. Your mind obviously has the "gift" of instantly spotting things which appear out of place. This is a left over built-in and hard-wired survival instinct within your brain. Specifically, to discern patterns which seem to be out-of-place (lion hiding in the grass or whatever). Now, relax your mind and put your thinking cap on, and look at the photos again. First, get an idea of the perspectives at which each photo was taken from by looking in general at the orientations of the various rocks and the overall depth-of-field. Look at the shadows to tell if it is a wide-angle or a telephoto zoomed photo. Here is the cool thing. You may have a wired mind which automatically lets things "stand out" to you. Thats good. Now you have to train your mind to properly interpret what you see. Yet the "stand out" thing is a good thing since you might spot something important, interesting and real which trained scientists might have missed. My mind works this way. Yet I have had to train my mind to not misinterpret what I am seeing. Have some fun and do a Google search on "optical illusions" for some pretty interesting examples of how our brains fool us in interpreting what we see. ![]()
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Check out my web page of my own processed versions of Apollo mission photos: Apollo ISD Photos |
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"Well I asked about the pics on BAUT and they say it's a lion hiding in the grass on Mars!"
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"Ignorance more frequently begets confidence than does knowledge" -- Charles Darwin "Your right to hold an opinion is not being contested. Your expectation that it be taken seriously is." -- Jason Thompson Meet the OOONG TOE. |
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