From your own quoted article: Five factors determine stability and mobility: http://www.humankinetics.com/excerpts/excerpts/five-factors-determine-stability-and-mobility 1. In summary, high stability (low mobility) is characterized by a large base of support, a low center of gravity, a centralized center of gravity projection within the base of support, a large body mass, and high friction at the ground interface. 2. Low stability (high mobility), in contrast, occurs with a small base of support, a high center of gravity, a center of gravity projection near the edge of the base of support, a small body mass, and low friction. The Apollo astronauts stability was characterized by #2. They were in a very unstable mode to begin with - and then let's add the impossible stances that they were in as well... Backpack FAIL: https://www.youtube.com/watch?v=vb1BBGh2NzM We went over this in Post #10: Of course, I think what you are trying to say here is that animals can sense when they are off-balance and can take corrective action - and try to get their COG back over their BOS before they fall over - but this does not have much to do with the basic argument. You are using yoga photos to illustrate backpack issues? I think it must have been too late for serious thinking and you always like to have the last and quickly posted word... Your yoga photos illustrate nothing of importance. The laws of physics are working fine in them. As I have stated many times previously - the COG must be over the BOS - and no problem in those images. And your point was?????
Hogwash. The body mass of a suited astronaut with PLSS/OPS and thermal garment is almost double a normal human being! Again hogwash. Who says they were in unstable mode? We're still waiting for you to show why a 22lb offset of a few inches is impossible to maintain upright with a body flex of the back or a small knee bend. You haven't because you don't know what you are doing. Pathetic example. Hopeless. Once again you demonstrate the inability to understand the simple concept of leverage and torque applied to a human being. The laws of physics are working quite correctly in them. But what we see is a total imbalance of weight and COG, can you explain this?. Can you explain this photograph? http://soldiersystems.net/blog1/wp-content/uploads/2015/05/IMG_4751.jpg Can you explain this one? https://bradflurry.files.wordpress.com/2015/10/heavy-pack-1-5-official-1024x661.jpg I answer pretty much every point raised. You have some unanswered points to respond to.
Yes, and the center of that mass is high which makes the astronauts TOP HEAVY! top-heav·y adj. top-heav·i·er, top-heav·i·est 1. Likely to topple because of an uneven distribution of weight, with the majority being at the top. Once again, I will say that It is not about weight - it is about balance! Funny, though! Leverage and torque? I think we are talking about balance... I think I said that. Let's see; the ladies are in a balanced position with their COG off of the ground - what exactly is there to explain? You are saying they are imbalanced - but they are obviously balanced. Yep, I can explain those...
Ahhh yes, so your claim about a lower body mass was wrong and instead of doing the honorable thing you sidestep it with yet another ignorant claim! Show how they are "top heavy"! Show where the new COG is! You won't do it, you don't know what you're doing, you are just pulling things out of your butt. Such breath taking ignorance again. I don't care what you "say", 22lbs weight is nothing that the human body flexing cannot deal with. Repeating your claim and ignoring every point is what conspiracy theorists do best. Oh for heaven's sake! You really haven't got any idea have you. Balance is all about a leverage system in the body. Torque is the rotation of forces around the lever. http://faculty.educ.ubc.ca/sanderson/courses/HKIN151/notes/aknn3.htm But didn't explain it, nor can you. As I said, you can't explain it. THAT wasn't an explanation, that was you saying they are in balance. What we "see" is misleading in this case, but YOU don't know why. Dodge noticed. "Unlike you, I will answer that question."
I was just quoting from your article: 2. Low stability (high mobility), in contrast, occurs with a small base of support, a high center of gravity, a center of gravity projection near the edge of the base of support, a small body mass, and low friction. The Apollo astronauts stability was characterized by #2. The term "small body mass" is a relative term. The astronauts have a small body mass relative to a car or truck but a large body mass relative to a dog or cat for example. It is relative... It is not about weight or flexing - it is about balance My point was that we do not need to bring any other physics into this because it is not necessary. We dont need to do calculus here. Any elementary school child knows when something is in balance and when it is not because when something is not in balance it falls over! What do we see that is misleading? because I am not seeing it... And I will... Dont let me stop you!
This is just too tedious for words. In summary what we have is a hoax believer who googles some physics, looks at some pictures then uses his "common sense" to blow air out of his butt, claiming that all the world's experts on physics can't see balance problems and only he can! Whatever. He fails at every request to answer numerous questions and problems with his claim and this after boasting that he answers things. More importantly he ignores the very important request to show where the COG is on an astronaut. No need for figures he jests! No clue how to do them is the reality. It has been correctly pointed out that the PLSS has a balance point somewhere between 3 to 4 inches away from the spacesuit. It has been pointed out that simple ankle, knee and trunk flexes alter the body balance point and it has also been pointed out that the human frame can cope with instability up to a reasonable amount. Maybe we should ask one multiple choice question! A man stands reasonably vertical. He is wearing a backpack, does he topple over at:- 1. Any imbalance over 1lb. 2. Between 1lb and 10lb. 3. Between 10lb and 20lb. 4. Between 20lb and 30lb. 5. More than 30lb. Assume he is able to flex his back, his trunk, adjust his ankle and knee angles slightly. If he is not too cowardly to answer, he will not be able to explain his answer.
Why dont you tell us what it is exactly in these yoga photos that you find "misleading"? I am curious as to what it is. I am not understanding why you think these ladies are not in balance. It really is simple... Try to stand up straight with a 60lb bag of cement strapped to your back - it is going to be very difficult - and then get on a trampoline and try this: Young: Yeah, I jumped flat-footed straight in the AIR! Freudian Slip, maybe? and if he jumped "flat-footed" "straight" in the air - doesn't that mean he was on a level surface?
Oh but you know the question of what we are seeing was addressed to YOU! Now answer what was requested. Explain what we are seeing. Their trunk and head appear not to be over their base of support. You have now resorted to deception it appears. Strap a 22lb bag to your back, jump up and lean forward as we clearly see being done. I posted a picture of my buddy with a 120lb boy on his back. You came up with crap about his legs, conveniently forgetting the hands clasped behind in support. So what, he jumped up straight and fell backwards because he was now no longer able to use his muscular reactions and joints to offset. You have nothing but hot air.
So what? Their trunk and head appear not to be over their base of support? That is not a requirement for being in balance. If I was on the moon that would be a valid experiment - but on the earth we would need to use 132lbs now wouldn't we? I think I counted 8 vertical jumps before he fell over backwards - how do you account for the first 7 ? BTW - AFAIK, this is the only video that shows the astronauts jumping at "higher than earth" heights. Do you notice something is a little fishy here?
I await answers to literally dozens of counter points, but the major one, where is the astronaut's COG is the most vital. Your "common sense" crap doesn't wash. Without a COG it is impossible to determine if there is a balance issue. The rest of your posts are basically you venting butt air.
No it means his boots did not have the flexibility to bend so that the foot can push from the stronger part of the foot!
Surely you jest! That is the most famous clip of them all and to anyone with eyes he is bending forward at the hips as he jumps! He is also on a gentle down slope. [video=youtube;d0OS26q20R0]https://www.youtube.com/watch?v=d0OS26q20R0[/video] Hoax film makers are corrupt. Dishonesty seems to be a thing that conspiracy theorists are good at.
It is a misleading appearance of balance however. Effectively we have x amount of body weight outside the base of support, hence the question asked and avoided by you about what was possible. Why would we?! The body effort to control 21lbs is what is in question. I suspect the LRV wasn't level for starters:- View attachment 41248 None of the jumps were perfectly vertical except the last two. Only Duke overbalanced as he was facing upslope. http://www.space.com/images/i/000/0...949?interpolation=lanczos-none&downsize=640:*
I love the way you ask me side issues that mean nothing whatsoever to your claims, whilst you have literally dozens of unanswered points:- Totally ignored Totally ignored Ignored http://www.politicalforum.com/showthread.php?t=441083&page=4&p=1065849393#post1065849393 You really struck out with this dumb comment - never did acknowledge where it was shown that it WAS a good idea! Sidestepped with arm waving - 100lbs(not including lower legs) behind and standing upright http://www.politicalforum.com/showthread.php?t=441083&page=5&p=1065853167#post1065853167 To this you gave the comedy reply of "illogical physics", without explaining how the picture contradicts that claim! Ignored completely Ignored completely Too cowardly to answer it would appear Now once again, show me where the astronauts' COG is on a simple picture. Your failure to do this FIRST step of a scientific process is obvious.
No, it is NOT a misleading appearance of balance - any more than this is: I already addressed your faulty reasoning on this here: and here: How do you know? I thought nothing was level? You have talked a lot about your "proof of something?" yoga photo - why don't you answer the question I asked here? Since you seem to be an expert on "Center of Gravity" (COG) NO! WE DON'T SEE A TOTAL IMBALANCE OF WEIGHT AND COG! You are absolutely wrong here - and we are just talking about a simple yoga photo. Where do you think the COG is in your "misleading" yoga image here? You know, the one with "x amount of body weight outside the base of support" and a "total imbalance of weight and COG" ????? For an expert on COG's like yourself - should be pretty simple... View attachment 41255
There's a large post above with dozens of things cowardly avoided by you. The yoga pose was used merely to illustrate an apparent imbalance. Trust you to pretend that weight outside the balance of support is not significant. I suggest you go back to page one where you claimed everything falls over in such conditions. You appear fixated about something that has no direct relevance to your claim, in favor of avoiding massive points that contradict it. Meanwhile you've proven nothing amiss with any piece of video or picture. Your useless opinion is dismissed.
OK, I am on page one and I NEVER SAID SUCH A THING! - what I said was this: Here we have weight outside the base of support - but we have balance, right? No Problem! View attachment 41259 You are the one fixated on the yoga pose. YOU are the one who brought it up to support your claims. YOU are the one who posted it. And YOU are the one who has stated that this photo contradicts what I have said about COG and BOS. So, tell us where the COG is in that photo... View attachment 41260 I will answer everything I have said I will answer as I get to it. As I have said before, I don't monitor this group 24/7 like you seem to do - nor do I devote all my time to this...
Can't read your own hogwash now? You said x amount of weight makes you unstable, you said you only have to be off balance for a second and "over ya goes" Thanks in no small part to the ability of the lady and the strength in her muscles. Crap! It was posted as a means to show how balance and poise are not straightforward, you dishonestly claim now that it looks perfectly ok. Between bosom and knee and nowhere did I say that!! It contradicts what you said about "over ya goes". I said it shows a misleading balance. Crap, some of this stuff has already been "got to"! You just cowardly avoided it. Answer the points raised, mainly the astronaut COG and some confirmed examples with terrain checked, where this is supposed to be breached. Your failure to do this is pathetic.
Do you suffer from short term memory loss? I ask, because we covered that EXACT piece of footage on the first page! Is this your wake up post crap moment? Then later, get home from work and realise you really aren't paying attention? As for your continual avoidance of the most important aspect to your inane claim, it was already studied and assessed. Maybe you would like the link to the document? This may be news to you, but for those of us who understand the subject matter it isn't!
That suit uses a slightly heavier life support system than Apollo. Not only do humans have the ability to offset imbalance from skeletal adjustments and muscular exertion, these adjustments need not even be apparent when performed inside a bulky space suit. In short, we have a LOG that is a few degrees off vertical when static and a human that can compensate if they stand vertically. And you have avoidance of major points, no COG/LOG calculations and no examples of breach that must include terrain assessment. Your last example was an example of the kind of "rigor" we can expect from conspiracy claimants. Not only did you repeat a previous claim, you ignored the original response and failed to assess it to ANY degree. It was on a slope! Maybe you should stick to watching Ninja Turtle movies""
