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This Moon Hoax page is written by one Brad Guth - and it just goes on and on and on and on .....
Rip the next 3 hours out of your calendar - and chew your way through this Mother of Moon Hoax pages .... [img]/phpBB/images/smiles/icon_smile.gif[/img] URL: http://geocities.com/bradguth/moon-02.htm PS: I am looking forward to Jay debunking the page - sentence by sentence by sentence by sentence ... [img]/phpBB/images/smiles/icon_biggrin.gif[/img] [img]/phpBB/images/smiles/icon_biggrin.gif[/img] [img]/phpBB/images/smiles/icon_biggrin.gif[/img] PS2: A warning - The above page is truly gonna make your BS detector go off the scale !!! <font size=-1>[ This Message was edited by: Cyberspaced on 2002-06-15 19:16 ]</font> |
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Brad Guth posts the link to this picture
http://science.ksc.nasa.gov/mirrors/...7/10075941.jpg A picture for which, he has these comments: "This next official NASA photo (from the Apollo-17 mission, as that indirectly linked by the previous URL) may represent something like that infamous "C rock" image, as that representing yet another mistake or oversight that somehow released an image which NASA did not intend, as this official image (taken by an official Apollo camera using the very same film) clearly demonstrates that stars most certainty could and should have been sufficiently captured in most of the lunar landscape photos" "What can one say about this following image but "OOPS!" One can see the very same image at: http://science.ksc.nasa.gov/mirrors/...7/10075941.htm ... where the text informs us that "The white dots surrounding the Lunar Module are debris from the Saturn S-IVB stage separation" In other words: The white dots are not stars, but "debris from the Saturn S-IVB stage separation". However, please note that Brad Guth does NOT link to http://science.ksc.nasa.gov/mirrors/...7/10075941.htm, where one can read the description. No, he links to http://science.ksc.nasa.gov/mirrors/...7/10075941.jpg, where one can only see the image and not read the text, which explains the white dots. A coincidence ? I think not !! [img]/phpBB/images/smiles/icon_smile.gif[/img] <font size=-1>[ This Message was edited by: Cyberspaced on 2002-06-15 19:51 ]</font> |
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I hope it was worth it. Refuting the assertions isn't a big deal. It's the same old naive garbage. It's the tedium of having to read that whole thing that really gets you. It's so redundant. And he needs an editor worse than I do. Somewhere in a huge paragraph of invective and name-calling and extraneous verbage might live a statement that merits an answer, but you have to wade knee-deep through all that muck to see if it's there.
I find it very amusing that someone who goes on at length about albedo hasn't tried to see if it applies to any of the earthly surfaces he's been photographing with stopped-down lenses and split-second shutter speeds. He seems to think that 10% of the light from the sun is a very small amount, photographically speaking. Most assuredly it is not. Oh, there's an addendum to the issue of why you can't work on the earthlit nightside of the moon. The equipment does have to be kept at certain suitable temperatures. The ascent fuel, for example, has to stay at room temperature. In the dark all the heat will radiate away and there essentially won't be any. So for that equipment that has to stay above -250 F, you'd have to provide heaters. (You do anyway for some of it, but you'd need them everywhere.) That makes it heavier and use more electricity, and that means heftier batteries. It's not very hard to control how much radiant energy something absorbs. You have isolation techniques, coatings, etc. So the sun essentially provides free heat. For equipment like electronics which generate heat, heat rejection is something of a problem. (But it would be anyway.) For biological systems (i.e., astronauts) that generate heat, heat rejection is the same problem. (Again, solvable.) But for things that don't generate heat and, but for the influx of heat from some other source, would freeze solid, there's the sun. You simply apply whatever coating brings your equipment to the desired equilibrium. You don't need to heat the ascent fuel or the gaseous O2 tank or any of the other stuff that was intentionally placed where the sun would shine on it and impart some heat. |
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Cool. I never thought about needing heat in terms of why they didn't land in the dark. I always chalked it up to needing the light.
But that's why I read this section of the board. The HB's annoy me, but reading Jay's, et. al., rebuttals always educate me. Keep up the good fight, Jay. The HB's might not learn anything, but rest assured I will.
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Jeff Schwarz __________________________________________________ Argh!! They booby-trapped their sun!!****--Invader ZIM |
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I always chalked it up to needing the light.
That's the primary reason, but I realized I hadn't really addressed the author's argument, which was about thermal design. The problem is not always about getting rid of heat. The problem is about making sure you have the right amount of heat. That means rejecting it when you don't want it, and acquiring it when you do. When you have such a nice solar source of heat available, it's a simple matter of taking as much of it as you want and ignoring the rest. As I recall, the Voyager spacecraft cooled its electronics by simply letting the heat radiate away through vanes into space. But if things started getting too cold, the vanes would close and simply reflect the heat back into the interior of the spacecraft. I've seen spacecraft designs where a coolant loop simply takes heat from the sunlit side and radiates it out the shaded side. JRKeller is much more familiar than I am with the particulars and needs of thermal design, so I'll defer to him to elaborate or correct any of this. |
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I can't believe I was finally qualified to do that! [img]/phpBB/images/smiles/icon_smile.gif[/img] Great write up, Jay! I've started saving some of your stuff for my son to show his friends when this subject comes up,as it seems to do more and more among young people, unfortunately. I've said it before, your posts may not impress your target audience, but I appreciate the time you spend on them! <font size=-1>[ This Message was edited by: pvtpylot on 2002-06-16 01:49 ]</font> |
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While the the yoke will return to center when released, and the ailerons will return to a neutral position, the aircraft will remain in a bank until the pilot takes positive action (a reversal of the ailerons) to correct it.
Well, yes a lot of the time. I chose the Arrow specifically because it's got enough dihedral to do half-pipes on a skateboard. And I'm talking about small bank angles, not necessarily ones that would indicate a turn. (Perhaps a high-wing aircraft would have been a better example because of the pendulum effect.) With the ailerons neutral in a shallow bank, the higher wing generates a horizontal force component. This causes the aircraft to slip. The slip alters the slipstream vector, which causes a lesser angle of attack on the upper wing and thus induces a corrective roll moment. Now this doesn't happen on all aircraft types and at all airspeeds and air densities. This is because directional stability (chiefly the vertical stabilizer) yaws the aircraft into the new slipstream. It simply becomes a race between lateral stability and directional stability (i.e., roll moment versus yaw moment). For fighter jets (e.g., the F-104) we introduce anhedral (the opposite of dihedral) so that the wings appear to droop. This helps induce faster roll rates. It also helps eliminate Dutch roll when the lateral stability exceeds directional stability in other aircraft. That's why we have yaw dampers on jet aircraft. And, while in a bank if there is no pitch up on the Arrow's stabilator the plane will enter a downward spiral Quite true, but I hadn't intended this to be a complete flying lesson, just a discussion of the factors that affect aerodynamic stability. There's more than just computers tweaking the control surfaces 20 times a second. |
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[img]/phpBB/images/smiles/icon_smile.gif[/img] |
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Jay, you truly are one amazing dude !!
Thanks for this extremely thorough debunking of Brad Guth´s Moon Hoax page. There is - as always - so many good points in your debunking, so .... Have you considered or would you consider to save these gems, debunkings of specific webpages, on Clavius ? Sort of what you have done with: Sibrel (http://www.clavius.org/bibsibrel.html) and Collier (http://www.clavius.org/bibcollier.html) I would hate if some technical error occurred in Phil´s forum software and we lost all your debunkings posted here at the BA forum. Could you "mirror" some of your best stuff, such as the above Brad Guth debunking, on Clavius ? <font size=-1>[ This Message was edited by: Cyberspaced on 2002-06-16 10:07 ]</font> |
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Much more complete explanation of dihedral stability than any I'd received to date.
Aerodynamics sounded really simple when I was in ground school. And then when I started talking to people who practiced it for a living, I realized there was much more depth to it. Everything affects everything else. My first day on the job was a day-long seminar on supersonic airfoil flutter modes. I just sat there thinking, "Oh, crap, I'm in over my head." As you can imagine, the Wright flyer had very poor lateral stability (no fuselage). And so the Wrights built it with anhedral wings. We tend to think of the Wrights as some bicycle makers who got lucky. On the contrary they knew a lot about what they were doing. And, apologies for an unnecessary addition to your point. Not at all. In truth I haven't flown an Arrow in years, so I could be remembering its handling characteristics wrong. In any case it's not hard to find other examples of passive aerodynamic stability. |
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Can they land on their own, or do they need a pilot?
They need a pilot. It's not an impossible problem to program a computer to land an aircraft. What happens aerodynamically and dynamically are well enough understood. But the big problem is finding the ground. Commercial airports use very sensitive and complicated equipment to provide radio "glide slopes" that can be followed by instruments on the aircraft. That's so that commercial aircraft can carry out scheduled operations even in abysmal weather (i.e., when you can't see the ground). The sort of regularity is not as important to military operations. And there is actually a big difference in the software required for attitude control and envelope management. That's pretty simple software. But of course approach and landing requires more intelligent software. Never fear: there is an ongoing research effort to remove the pilot from the fighter cockpit. Pilots aren't necessarily happy about this, but the problem is that aerial combat is approaching the point where the pilot's fragility is an impediment. Airframes are capable of manuevers that would injure the pilot or render him unconscious. The "edge" in future combat may be keeping the pilots on the ground and letting the high-performance aircraft duke it out. |
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Have you considered or would you consider to save these gems, debunkings of specific webpages, on Clavius ?
Yes, Clavius started out as a collection of such specific refutations. But in that it tends to get very repetitive I've determined only to specifically address essays that are less ephemeral. Collier's and Milne's articles appear widely and were in print. Web pages are here today, gone tomorrow. Of course it's probably a good idea to keep something I spent hours on, whether it's ephemeral or not. |
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I am sure that telefactoring is the way of the future in combat aircraft. The first time a fighter pilot goes against an RPV (remotely piloted vehicle) capable of 20+ g's in any direction will convince him. Whether he will live long enough to tell anybody is another story.
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Any day you wake up on "the right side of the dirt" is a good day. T. Anderson |
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The problem is providing a ground-based pilot with sufficient information to build situational awareness of the battle. Immersive environments seem to be the best tool, but that requires considerable sensory capability in the remote vehicle and considerable communication bandwidth.
This reminds me of the ongoing debate whether manned or unmanned space exploration is better. Each side has very good points. You can send remotes much farther than humans, and much more cheaply. But the quality of the exploration benefits immeasurably from the onsite presence of an adaptive human explorer. I'm also reminded of Wernher von Braun's comment that a human pilot was the most effective computer you could put in a spacecraft, and how they could be mass produced with relatively unskilled labor. But of course combat and exploration have different goals and therefore different requirements. |
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Ah, once again! Match over, scores:
Jay 100 Guth 0 I worry about Jay not being here one day - where else will we find someone who can debunk so effectively? An archive of his rebuttals would be a public resource. Lang may his lum reek.
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Garlic Bread?!?! |
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It's quite interesting what can be done with autonomous aircraft. At Linköping University, where I study, there is at least one project going on that deals with autonomous aircraft. As my field is artificial intelligence, I've been in contact with this project a couple of time, although I haven't been involved in it directly. But the results are very impressive.
Of course, what I've seen is for civilian (traffic control, for instance) use, and not a replacement for military fighter aircraft, so it might not be entirely relevant here. |
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(Jay, this is not intended as encouragement to retire from the field. It's just in case your CIA-employers find something dangerous for you to do. [img]/phpBB/images/smiles/icon_wink.gif[/img] )
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Never attribute to malice what can be adequately explained by ignorance or stupidity. Isaac Asimov |
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http://www.avweb.com/newswire/news0128a.html about building the one of the replicas of the Wright Flyer to be flown at next year's celebration. Seems that no one wants to fly it as originally designed, a quote from one pilot stating, "It's like balancing a yardstick on one finger, two at one time. If you lose it, it goes -- quickly." Does make you admire the Wrights all the more, since by all accounts after their glider tests they were fully aware of the problems. |
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Here is an article from Popular Science diccussing the project commissioned by the Experimental Aircraft Association of Oshkosh, Wisconsin, to reconstruct the Wrights' plane for an anniversary flight at precisely 10:35 on December 17, 2003.
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The wright flyers was a hoax, it was made by
us martians and given to you earthlings as a birthday present. your goverment then covered it up by saying some drunkards made it.
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<marquee> the guy that has come from mars, for no reason (no reason, or you think for no reason......) </Marquee> |
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The article says the French believed the Wrights' flight was a hoax.
Modern flight management systems are quite impressive. The pilot performs the takeoff and shortly thereafter the FMS flies the aircraft from Point A to Point B at the correct altitude and keeps it from crashing. In fact, the joke goes like this: a modern airliner can be flown by a single man and a dog; the man's job is to feed the dog and the dog's job is to bite the man if he tries to touch the controls. The FMS can even line the plane up to the correct runway at the destination airport and execute most of the landing. We are on the cusp of having ground-based flight controllers directing aircraft by means of connecting via radio to a FMS and giving the airplane commands to ascend, descend, turn, etc. Of course this automation is a mixed blessing. While it vastly improves safety by relieving the pilot of tedious flying and by its capacity to maintain a safe flying attitude with senses and reflexes dozens of times more acute than any human pilot, at the same time it cannot (and probably should not yet try) to replace human intuition in the case of an emergency. Numerous airliner incidents have been averted or ameliorated by the human pilot's ability to defy common sense, seize the absurd, and from it extract a measure of survival. This again speaks to the question of manned versus unmanned space exploration. The ability of a human to adapt to the situation and reach back through a lifetime of experience and alter the parameters of control in an unforeseen way is a key advantage to the exploration of unknown territory. |
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Well, after much thought I went to this website. Boy was it bad. Some thoughts on the "extreme thermal cycling"
I don't know if I would agree with Jay when he states "The case for such cycling is based on a very naive thermal model." I think he's being too nice. To achieve the results that Brad Guth claims his thermal model would need to have no mass, no conduction to (or from) anything, no thermal radiation to (or from) anything, absorb the same amount of solar energy as the lunar surface and emit the same amount of infrared energy as the lunar surface. I wouldn't even call these poor assumptions. This is, I need an answer, so I'll make assumptions which will give me the answer I need. One might as well just use a print statement. On to thermal control systems. I would say that Jay is correct in stating that the landings occurred during the day at least in large part for thermal control system considerations. Once the sun stops shinning the temperature of the surface drops off quickly to -155°C (-247°F) and stays that way for the entire lunar night. At least during the lunar day, the temperature increases slowly and predictably. In the early 1990's NASA did some lunar base studies and we found that at least for the thermal control system, the night side presented more problems than the daylight. Add the fact that power from solar energy isn't available during the 14 day nights for things like heaters made for some interesting conceptual designs. <font size=-1>[ This Message was edited by: jrkeller on 2002-06-18 23:01 ]</font> |
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