QUOTE (turbonium @ Nov 7 2007, 03:19 AM)

THAT...is perhaps the lousiest piece of AS-15 footage I have seen!
(I should contact Eric Jones about that thing in the hopes that he can get a cleaner version...)
Apollo 15 was magnificent, start-to-finish, an emotional experience and a wonder of human exploration. The TV was great, and this video clip is trash.
A little background on it:
The full sequence from which these few frames were taken is the flag setup at the end of EVA2 on AS-15. The entire sequence takes about 4.5 minutes.
If you had a good version of the TV, you would clearly see what was going on.
This version is crap and shows virtually nothing. Seeing the whole thing in context reveals alot.
What actually happens is that Jim gets the base pole of the flagstaff, a hollow cyliner about 2.5 feet long, and thrusts it into the ground about 8-9 inches with his hand, leaning on it. He then whacks it down six times with a tool, maybe another 4 inches or so.
What should be noted is that Jim has hammered the base pole at an angle to the verticle of perhaps 15 degrees or so, illustrated by the "tourist" photos that were taken ( which is what they did after the flag's erection (REF: AS15-88-11863 through 11866). Striking this hollow pole as he did, and an angle from the vertical (which is pertinent), has the effect of disturbing the receiving end of the shaft, and possibly knocking the shaft slightly out of round.
Dave then comes over with the deployed flag on it's pole, which inserts into the receiver tube, and puts it in there. He stuffs it into place, and you'll note the flag's movement from that activity, as the pole oscillates from his impulse. It continues to move for the next 35 seconds, as Jim get's into position right next to it (he walked right past it and stood maybe a foot away from the flag pole while having his picture taken). This close proximity motion didn't cause the flags movement to increase in the slightest. This is because the oscillation caused by Dave's impulse was dampening
in a vacuum.
Now, as Dave walks past the flag on his way toward the LM, we again see a small amplitude oscillation of the flag. In a good video one clearly sees the horizontal support of the flag move perceptibly in relation to the mountains in the distance (you cannot see that in this crappy version).
Now, Turb, you pilfered this clip from ALSJ. I shall assume that perhaps you read Mr. Jones' comments on that motion of the flag?
QUOTE
[Note the slight motion of the lower righthand corner of the flag after Dave passes. Journal Contributors have suggested a number of possible causes: (1) Dave could have brushed against the flag with his left arm as he went by; (2) he could have kicked some dirt with his boot that hit the bottom of the flag; (3) he could have pushed a mound of soil sideways with his boot that pushed against the flagstaff ; (4) the impact of his boots on the ground as he ran past could have shaken the flagstaff; (5) he might have been carrying a static charge which attracted the flag material; (6) the flag could have been disturbed by emissions from the backpack.]
[In thinking about these possibilities, numbers 5 and 6 are very unlikely, since there is no evidence of similar flag motions during the Apollo 14, 16, and 17 deployments for which we have good video or - in the case of Apollo 14 - film coverage. With regard to foot impacts, we can certainly see the ground move when flagstaffs and cores are hammered into the ground, but the motions extend only a few centimeters outward and, because the Apollo 14 flag points at the LRV TV camera, Dave problably doesn't get close enough to the flagstaff for his footfalls to have any noticeable effect. Similarly, it doesn't seem likely that he got close enough to the flagstaff to have moved it with a displaced mound of dirt.]
[The possibility that Dave kicked some dirt high enough to hit the bottom of the flag is not out of the realm of possibility, although in the many cases were we have goot TV coverage of sprays of dirt flying out ahead of running astronauts, most of the particles have relatively flat trajectories and land after traveling a meter or so. Indeed, Buzz Aldrin did some purposeful test kicks to see what happened and how the sprays looked under various lighting conditions. This is discussed after 110:18:31. Buzz comments, "Houston, it's very interesting to note that when I kick my foot (garbled) material, with no atmosphere here, and this gravity (garbled) they seem to leave, and most of them have about the same angle of departure and velocity. From where I stand, a large portion of them will impact at a certain distance out. Several (garbled) percentage is, of course, that will impact (garbled) different regions out (garbled) it's highly dependent upon (garbled) the initial trajectory upwards (garbled) determine where the majority of the particles come down, (garbled) terrain."]
[My impression is that few, if any, particles go above knee height.]
[A likely explanation is that Dave brushed the flag with his arm as he went running past. As can be seen in the TV, he is carrying the Hasselblad camera that he just got from Jim and it looks as though, if he brushed the flag at all, he did so with his left elbow. To check this possibility, I have compared three views of the scene: (1) Jim's fourth tourist picture of Dave, AS15-92-12451; (2) the TV view of Dave while Jim was taking that picture; and (3) the TV view of Dave as he went past the flag after the picture taking was complete. The results are summarized in a labeled detail from 12451.]
[Because the TV camera is not visible in 12451, I have estimated its location from Dave's fourth photo of Jim, AS15-92-12447. Using that estimated camera location, the four green lines show the relative vertical locations of the top of the flag where is is tied to the flagstaff, the top of the main body of Dave's PLSS, the bottom of the flag where it is attached to the flagstaff, and the bottom of Dave's PLSS. Relative vertical locations can be measured as the intersections of the lines with any vertical plane such as the left edge of the image.]
[Although Fendell moves his aim to the right and then up by small amounts between the time Jim takes 12451 and the time Dave crosses between the camera and the flag, the relative locations and spacing of the top and bottom of the flag do not change and, conseuqently, these can be used to place the top and bottom of Dave's PLSS as seen in the TV image onto 12451. Because DAve stood with his PLSS erect while Jim was then taking his picture but then assumed a more normal posture by leaning forward about 10 degrees while he was running, I have adjusted the apparent locations of the top and bottom of the PLSS (red lines) so show where the PLSS would have been had it been perfectly vertical.]
Finally, I placed the PLSS (red rectangle) where it would have been in 12451 had Jim taken the picture at the moment Dave was running past the flag. There are two ways the PLSS can be placed. In the first, I measured the apparent height of Dave's PLSS as seen in 12451 and found the place the top and bottom red lines are that far apart. This marked the location of the side of the PLSS nearest to the TV camera. The rest of the PLSS outline was then drawn to scale. Alternatively, we note that, in the TV record, the apparent long dimension of Dave's PLSS - measured along a line titled 10 degrees to vertical - when he ran past the flag was 2.4 times the apparent long dimension of his PLSS when JIm was taking 12451. This means that the near face of the PLSS at the former time is 2.4 times as far from the TV as it was at the latter time. This would put the PLSS a bit closer to the TV camera than I have placed it in the labeled detail.]
[The result is not clear-cut. The estimated PLSS locations makes it possible that Dave's elbow could have touched the flag; but just barely, if at all. This may be consistent with the low amplitude of the observed motion, in that the low amplitude suggests only a slight perturbation, as might have happen if Dave barely brushed the flag with his elbow.]
I think perhaps you might have...maybe (at least I HOPE SO).
It's a fairly good analysis, but I am not in agreement with it in toto.
I cannot determine if Dave actually touched the flag. The TV camera was approximetely 20 feet from the flag, and was zoomed in. I think it's almost impossible to determine Dave's distance from the LRV camera or the flag given those circumstances.
I do think what happened is this:
Due to the angle of the flag from the vertical, and the flag's obvious yaw away from the angle of the pole to the vertical, and the probability that the insert pole wasn't perfectly seated in the receiver tube, it moved, under the force of gravity ever so slightly, as such things would be inclined to do. The mass of the flag was acting at an angle to the pole, and a slight settling or turn toward the gravity vector, as I'll call it, made the flag oscillate a slight amount, and it just happened to coincide with Dave moving past the flag. It might have been 1/8" or less of rotation of the insert member withing the receiver tube, a slight settling. That's enough to cause the flag to move perceptibly.
Now Eric discussed six possibilites as put forth by contributors to the Journal. I just added #7, which in my mind makes as much, if not more sense than the others. I don't think any of them can ever be stated as a fact uncategorically. And, it doesn't really matter. It is inconsequential.
The pertinent fact is that none of those seven possibilites includes a wind gust. The reason for that should seem rather obvious:
We were on the Moon, in a vacuum.
Now I fully realize that you'd like to assume, or believe, as you have, that this is
conclusive evidence of a gust of wind. But, you are once again wrong in that assumption.
Why, you ask (and I know you are asking that)?
Well, you see, presenting tiny snippets, sans context or full content, which you are inclined to do, lend themselves to
not presenting the whole picture. And not presenting the whole picture often lends itself to being wrong, as has also been illustrated many times in these Moon hoax arguments.
If you actually look at the
whole sequence, you will see clear evidence that these men are in fact on the Moon in 1/6 g.
About 15-20 seconds prior to the flag deployment, Dave, get's to that location... where where he thinks the flag should go. When concurrence is received, he seems to deliberately kick his right foot backwards,
spreading out the lunar dust behind him visibly.
It moves out in a linear fan behind him, settling softly to the ground in a most unearthly fashion...there is no dust cloud, not a single particulate is suspended. It moves away, and falls in nice ballistic arcs.
That, is
IMPOSSIBLE where there is air. You will have some dust cloud where the microfine particles are suspended in the air. There is none in this case...as there are never any in any Apollo video where dust is kicked up in one fashion or another.
That alone is adequate evidence that these men are in a vacuum, and the velocity of the motion of these cloudless dust masses is evidence that they are in a 1/6 g gravity field.
Of course there is only one place we know of where such conditions exist...the Moon.
You are wrong.
This was no wind gust.
Watch the whole EVA, especially this sequence of flag erection and tourist shots at the end of AS-15 EVA 2 and you will see clearly the whole picture.
It was a nice try. But no joy.
********************************************************************************
*
p.s...
to POSTIE:
Noting your prior post, vis:
QUOTE
It was indeed rough and ready, but it's so conclusive I don't see the need to refine it. It's also so simple that anyone can do it. Nylon flag 3' x 5' (same size as Apollo flags IIRC) bought off eBay for about £3. Set it up. Hold bottom corner, give it a small displacement similar to that seen after the astronaut has walked/bounced/trotted/skipped past (3 or 4 inches). Compare motion of flag being heavily dampened by thick atmosphere to the continued motion of flag in the Apollo footage. Conclusion: the Apollo footage was not filmed in an atmosphere.
Try different levels of displacement. Dampening is still very obvious. Motion of flag is nothing like that seen in the Apollo footage.
No need to take my word for it, try it yourself. The effect is very pronounced.
NOTE: this isn't trying to replicate what actually caused the flag to move, it simply and effectively demonstrates that the scene could not possibly have been filmed in an atmosphere - the dampening on the flag after it has been moved would have been muc
I see you have addressed some of this...
Thus, to give credit where credit is due, I quote you (as always, nice work!

)