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Do we know of any species of bacteria or any species of mould which have become extinct, from whatever cause, except by deliberate and concerted human attempts at eradication?
GOOD GRIEF !!!!!!!
Hi Robert!
I'm a little rusty on my nuclear physics and wondered whether you might humour me by clarifying something?
You state: "Without anything to moderate the neutrons, uranium can't explode."
I thought the moderator was designed to harmlessly absorb neutrons before they can collide with another uranium nucleus and produce more neutrons. Hence, I thought that removing the moderator would allow more 'cascading' of the fission process and thus release more energy. From this, it seems to me that, without anything to moderate the neutrons, the risk of an explosion is increased .... or, at least, the reactor's heat output is increased.
From what you've said, I suspect I must have an oversimplified view of the controlled fission process. Where am I going wrong here?
Incidentally, a few months ago, I noticed an article about an Israeli physicist who advocated using an Americium based rocket engine. He was impressed at how a useful level of fission could be maintained in even quite thin strips of Americium. So he envisaged a core of long thin plates of it separated by spaces through which a steady stream of propellant could be passed. In the course of its passage between the Americium plates, the propellant would be heated to extremely high temperatures before being expelled.
Thus a simple, high-efficiency, continuous-thrust nuclear engine is created. I don't recall the ISp figures, unfortunately.
I recognise this is not the 'fission combustion' you postulate because the propellant and the fissile material are separate, but it sounds like the kind of continuous and efficient propulsion you're looking for.
Anticipating your objections(! ), the Americium-based engine's ISp is probably not much more than 1000 seconds, and I suppose you're looking for something closer to 10 times that figure(? ). Also, I suppose Americium is too rare and too expensive.
I like your idea for 'fission combustion', if it could be shown to be a valid means of employing fission's potential. If it could be made to work, it might be the answer to our prayers!
At the risk of labouring the point to death about a "!" followed by a ")" producing a smilie, I've found that if you introduce a space after the exclamation mark before closing the brackets ... (! ) , no problemo!!
Hi Cindy!
Thanks for your reply. I certainly see your point also!
The overwhelming majority of conspiracy theories are obviously nonsense. And your disdain for the paranoia that creeps into most of them is a very understandable reaction. I feel it too.
It's a fine line we tread in trying to filter out what COULD be a gem of truth in a pile of dirt ... that's the point I've been trying to make. There's a stubborn streak in my nature, too, which tends to make me dig my heels in if I see a new concept being laughed out of court because it doesn't quite fit in.
If it's nonsense, by all means let's throw it out! ... In fact, I insist that we do! But please, let's point out plain and simple reasons WHY it's nonsense, before we start throwing!
Incidentally, thank you for your kind compliments, which demonstrate the limitations of character judgment by keyboard(! ) 'Marvelous' ... I ain't! 'Fair' ... well, I can but try. As for being 'very smart', that's extremely easy to refute!
I'm next-door to computer illiterate! Lack of chivalry had nothing to do with my not providing a link for that website. The fact is, I'm still learning how to get computers to do what I ask them to do! Anything I do know (not much), I taught myself by trial and error.
But I've now mastered the art of producing reliable links (... pauses for thunderous applause from an appreciative audience!! ) and I apologise for any inconvenience I may have caused.
In addition to the above faults, I confess also that I very much enjoy compliments (even though thoroughly undeserved ) ... especially when they come from an unmistakably intelligent young lady! Madam, you are altogether too kind!
Thanks Josh!
It's good to know you're on the case! Now I can rest easy, knowing that soon this TEM thing will be examined by someone with the background to be able to separate the fact from the fiction.
Maybe when you come to explain it to us, you might avoid arcane acronyms and esoteric terminology so that we can follow your reasoning? Hard to believe, I know, but I understand even less about computer imaging techniques than I do about creating links!!
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Looks like my question has been answered!
They've done a spectral analysis of light from Earth's new 'moon' and found it exactly matches the spectrum of light reflected from titanium oxide paint.
Guess what kind of paint they used for the Saturn V upper stage?!
Peace, Josh!!
I was just amazed at the sheer number of hours Noel spent at TEM. I'm sure he's a nice guy and I don't have any solid evidence that he's a mole for NASA. All I've got is hearsay. You're probably quite correct that the whole thing is silly.
But I can't help but find it all fascinating! If, as you suggest, Hoagland is a nut, he has created an imaginary scene of extraordinary depth and complexity. If it's an illusion ... it's a beauty! And I'm enjoying every episode as it unfolds.
I want to be shown, by somebody much smarter than I am with computer imaging techniques (of which I know nothing), that the apparent angular, artificial-looking shapes in the enhanced IR pictures from Odyssey, are simply artifacts or 'noise'. I realise the uninitiated can be fooled easily. I'm ready, willing, and able to be shown the truth. But nobody's saying anything!
Hi MarkS!
Thankyou for correcting my dating of Eisenhower's statement. I'd thought he said all that earlier than '61 ... my mistake.
My interpretation of his mood at the time was that he was wary that too much non-accountability was creeping into the situation as far as the military was concerned. I was led to believe it was a warning of sorts, on his part.
If I am mistaken again, then again I apologise. I daresay you would know your own country's history better than I do!!
I was just thinking about Noel Gorelick spending 1000 hours on the Enterprise Mission website in a period of 3 months.
That's over 11 hours a day, 7 days a week, for 90 days!!
When did he have time to go to work? Does he have a family? (If so, do they still recognise him?! )
I guess it should be fairly straightforward to ascertain whether Gorelik, alias "Bamf", really did spend so much time at Enterprise Mission's website. If he did, I'd love to know why this NASA employee abandoned so much of his work and/or his home-life, in order to study the research of Richard Hoagland and converse with people interested in planetary SETI.
Maybe he's really taken with Hoagland's work and believes there may be something in it. Or maybe he IS the mole that Hoagland thinks he is!
Mark S, your suggestion that legal action be taken is probably what the Enterprise Mission team is considering at the moment.
I think it would probably be unwise to attempt such a thing, because of NASA's potentially unlimited funding and the military connection. Even if Hoagland has the evidence, I think he'd be up against very stiff legal opposition and could be in court for years. He could even end up bankrupted by it. And just suppose he's on the brink of victory, the military have only to plead "interests of National Security", and the case would be halted in its tracks.
If the government isn't hiding anything, a court case would be pointless. If they are hiding something, the average American has no hope whatever of finding out exactly what it might be, until the government is good and ready to tell!
This kind of power is what Eisenhower tried to warn America about as he left office at the end of 1959. He expressed concern at the burgeoning influence of what he coined "the military-industrial complex", which was rapidly, even then, rising above the law. ... Something he saw as potentially capable of ultimately undermining the fabric and freedoms of American society.
No. If there is a plot, Hoagland only gets the information he's supposed to get, and no more. Any attempt by him, or anyone else for that matter, to learn more than is deemed necessary, is doomed to failure for obvious reasons.
Incidentally (and this isn't the right Forum for this, I know), the 2003 Rovers might now be postponed until maybe 2008.
The sample-return mission (something I've long thought superfluous) could end up costing as much as $2 billion, and probably won't launch until 2016!!
At this rate, we'll all be dead before a manned mission gets off the drawing board!
Regarding the new "moon" we've acquired.
What if it's a small asteroid we've trapped in orbit around us? What if it's just a fluke that its orbit matches one that could be associated with an old Saturn V third stage?
If it's an asteroid full of volatiles, maybe it would be worth nudging it away from a collision with the Moon and steering it into a closer orbit for future utilisation(? ). I guess it depends on the mass of volatiles involved.
Anyway, my main point is to ask if it's possible to point the Hubble telescope at it for a positive identification. Or would those in the line waiting for 'telescope time' kick up a stink about it?
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A great first post, Tyr! Welcome to New Mars!
I really must look into buying some shares in Phobos/Deimos Mines Inc. Maybe if the price eases off a little bit ... !
Forget Voltaire, Cindy!
Recent research has shown he was an early NASA employee!!
Trust no-one!
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Sorry, Josh! I hadn't seen this question of yours until today.
I haven't given it a lot of thought, but the information looks a little scanty to me at first glance. It's not immediately obvious (at least to me! ) how to get a fair approximation for the amount of water we're talking about. If any flashes of inspiration occur, I'll be sure to come back to you on that one.
What I was wanting to know at this point, relates to the Martian northern hemisphere.
The CO2 "hood", as I think it's known, which forms over much of the north of Mars during winter, has been blamed for the lack of data about water there.
But surely that "hood" must be nearly gone by now. Has anyone heard anything yet about results from Odyssey in the Vastitas Borealis area? You would imagine that, since it's lower and is probably where the ocean used to be, and since it doesn't get as hot as the southern hemisphere in summer, it should have even MORE water ice near the surface.
Has all the returned lunar material been examined yet? Could any of it be from here, full of fossils, without us knowing?
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Food is always important, of course. And there will be something very comforting about taking off your helmet in the Hab, after a day working outside, and smelling the beautiful aroma of a well-cooked meal!
I'm sure Phobos is right that s/he who grows the food and/or prepares it, will be "like unto a God" !!
But, unlike Antarctica in winter, I'm hoping Mars will be far more amenable to frequent field-trips out on the surface. I'm hoping there will be lots of absorbing and challenging things to do, almost all the time.
Maybe in that sense, the claustrophobia-induced manias that plague Antarctic researchers won't be as much of a problem(? )
There has been so much written lately about how they're persuading carbon nanotubes to grow longer and longer. It's surely just a matter of time until we can make strings, ropes, and cables out of pure uninterrupted lengths of nanotube.
Might such fibres be useful in the building industry to reinforce tall structures? I know they'd need to be bonded to some form of fire-retarding material because of their susceptibility to flame. But imagine the strength and lightness of such reinforcing!
In the same way that kevlar stops bullets, could skyscrapers perhaps be made more resistant to massive impacts? Even if the integrity of a structure could just be maintained long enough to get everybody out, that would certainly justify the effort.
But what if we could make tall buildings so strong that even a fully-laden 747 couldn't topple them? Would that eliminate such buildings as a terrorist target all together?
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[Quote from Ranger 2833: "... beat them with the bat until they woke up ..."]
Funny ... I'd always imagined beating someone with a baseball bat would tend to put them to sleep .... Permanently!!
Just kidding around here! Ranger's idea is VERY understandable. In fact, why wait until we're all doomed? Hell, let's get the bats now and get the show on the road!!
If you look into the tenure of Heinrich Himmler as Reichsfuhrer SS in the Nazi regime, you learn he had an obsessive interest in rituals.
There was a building like a castle with a stone room, in which the hierarchy of the SS would meet to discuss the mystical nature of "Blood and Honour" and devotion to the ideals of the National Socialist state. Runic symbols out of an idealised teutonic history played a part in a cult-like atmosphere reminiscent of ancient pagan religions.
Himmler and company were also very much involved in producing future generations with the same devotion to the National Socialist ideals. They mixed all this with a liberal dose of eugenics, of course, and put the whole scheme into operation with the "Lebensborn" project.
Your highly stylised ritual inseminations in a building modelled on that of an ancient pantheistic, pagan religion, with an emphasis on the continuation through the generations of devotion to an ideal, just happened to put me in mind of Heinrich Himmler.
I think you'll have to agree, the parallels are obvious.
But I concede that there are also differences, and I made a point of saying so in my last post.
In retrospect, I should have qualified my comments about 'dehumanising the relationship between men and women' by saying that it was merely my opinion. Again I concede that others may not find it so.
I also hasten to add that I do not compare you with the evil Himmler, but I still think of him when I think of the ceremonial scene you describe. I just can't help it!
You raise a most interesting point in asserting that much of what is worst in human nature stems from the brevity of our lives:-
Quote from Nirgal82: "... our pettiness, shortsightedness and pursuit of power. ... things that become unnecessary traits when you live forever."
I wonder whether wisdom would come from even just the contemplation of ages of existence ahead of you, or whether you were saying the very process of living so long would imbue us all with the wisdom that so few of us today live long enough to achieve?
On a more prosaic level, just returning to the question of retaining humanity in an artificial body, I suppose it would depend on the sophistication of the body.
In a purely mechanical body, without the subtleties of smell and taste and touch, I imagine we would become something other than human eventually. Because much of what we are is still, I think, dependent on subtle biological input and interactions. We are still largely animals, with a veneer of cerebral cortex superimposed on top!
In an extremely sophisticated body, created to relay every nuance of the senses to the appropriate centres in our brains, perhaps we could remain essentially human ... whatever that means.
But then, in order to rise above the pettiness Nirgal82 describes, perhaps we need to lose at least some of our humanity.(? )
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I know, Cindy, it's easy to get caught up in conspiracy theories. But it's also very easy to join in with a group of people ridiculing a new idea or concept. I'm still amazed that, some years after the Wright brothers' first controlled powered flight, people were refusing to believe it had happened.
Considering the potentially enormous significance of finding artificial structures on Mars, isn't it worth some time and effort to study what is being claimed, fairly and openly, so that it can be either proven correct or duly refuted?
I've seen the evidence. I'm not a complete idiot (I hope! ). There is a case to answer here. Neither ridicule nor silence is an adequate response.
Try this site for an interesting viewpoint which, incidentally, mirrors my own:-
http://www.marsnews.com/news/20020910-fakedata2.html
P.S. Sorry. Can't seem to get a direct link for you. You'll have
to type it in!
Scott, I can't believe you're serious about all this!
There's a surreal atmosphere to what you're describing here with all this socially-structured breeding-in-public stuff.
Forgive the analogy, but when I read your contributions in this topic, I can't get the image of Heinrich Himmler out of my head. There was a similar feel to his 'Lebensborn' breeding program to create a so-called 'super-race'. In that nightmarish episode in history, women were treated pretty much like cattle and placed in breeding farms.
I recognise that (at least so far) you haven't advocated selective breeding. But the rest of your suggestions are just as effective at dehumanising the relationship between men and women as anything the Nazis managed to invent.
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Cindy writes: "... it'd be folly not to ensure women have the same access to education and working knowledge as men .."
This is absolutely indisputable in the Martian context. But it is also a point that has been raised in connection with studies of western social and economic development, versus that of strict Islamic states.
It is readily apparent that most or all fundamentalist Islamic states, which routinely deny women access to basic human rights including education, are economically backward. In fact, it is hard to deny a direct cause-and-effect relationship between fundamentalist Islam and economic retardation.
How this relationship comes about has been attributed to the obvious loss of the talents and abilities of fully half the population of these countries!
Even a cursory glance at a typical western democracy, reveals the enormous contribution made by women in almost all walks of life. My own family has attended the practices of female doctors, physiotherapists and dentists, for instance. Half the optometrists in Australia are women. And the contribution made by women to nursing is legendary ... I'm proud to say my wife is a nurse! I could go on and on about extremely capable and talented women in demanding careers all over the western world.
All of this incalculable benefit to the well-being of society is denied to the people in a strict Islamic state. And it's difficult to argue with the premise that such states will, by their own hand, continue to fall further behind liberal democracies in terms of economic advancement. You can't choke off half the potential of your people and expect to prosper!
Here on Earth, it's madness. On Mars, it would be suicide.
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I guess I'm a bit of a Johnny-come-lately to this topic, so I hope it's O.K. to throw in my two cents worth!
Phobos, your idea of scanning the human brain with such precision that every last neural connection could be duplicated in a machine, thus endowing the machine with the intellect of the individual so copied, might not work. As far as I know, the brain stores memories in chemical form as well as in inter-neural connections. The connections tend to give us the reflexes and the everyday skills we need to balance while we walk, run, catch a ball etc., while the chemical storage system gives us memories of things like a nice day at the beach when we were kids. To complicate things, the storage of either or both types of memory is apparently holistic. In other words, the destruction of an area of the brain which is normally associated with a particular activity or motor skill, will sometimes only affect that activity temporarily, or memories will gradually reappear, as though dredged from another region where they were kept for emergencies only!!
What I'm trying to say is that it looks like the brain is far more complicated than even its staggeringly complex inter-neural connection network makes it appear. It's like the proverbial 'ghost in the machine'. It's like there's more to it than just plumbing, and reproducing that plumbing won't give you the individual you were trying to copy.
I know I'm verging on religion here, but I don't know how else to express this. Call it consciousness, if you prefer to avoid nebulous terms like spirit or soul ... though defining any one of these terms is probably just as difficult as defining any other.
I've even wondered about Star Trek's transporter system. When Kirk and Spock dematerialise, are their atoms actually moved through space and reassembled? Or are their atoms discarded, and new ones used at the destination to recreate them from an information matrix? Either way, I've wondered whether it would in fact be a means of finally proving there's more to us than a complicated set of molecules. Just suppose that the first time they tried it on a human, an exact duplicate of the human appeared on cue, but had no personality! A living creature, apparently human, and perfect in every detail but one ... it wasn't the same person! In fact, what if it wasn't really a person at all? ... Everything there except the consciousness we knew and loved in the original man or woman. Sounds like the script for a sci-fi horror movie, doesn't it?!
Incidentally, there is a common theme in a number of old sci-fi stories, where races have produced the technology to transfer their brains into mechanical bodies. A great idea in principle, since you can swap the aging body at intervals for a newer model with, say, a high-performance turbo-charged engine and traction control! (Just kidding.) That way you can practically live forever ... at least in theory.
Almost invariably, though, the creature thus modified loses its 'humanity' in some way. It becomes machine-like and lacking in emotions because it's no longer in touch with a living, breathing, 'natural' body. (Actually, it usually becomes cruel and power-crazy and tries to conquer Earth, too! But that's not really the point of my post.)
Anyhow, what I'm trying to say is that there may be more to being a human than just connections. And we might be getting close to the day when we can either prove or disprove the notion once and for all.
Does anyone know the timetable for this experiment?
Is it due soon?
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I know exactly what you mean, turbo.
I feel it too!
When you feel something so passionately, it's SOOO hard to understand why others don't feel it the way you do!!
RobS, I'm inclined to agree with Phobos about the relative excitement value of the Moon and Mars v. LEO. I don't think the public has really been given a choice ... they're STUCK with LEO, whether they want it or not!
It's good to hear, though, that Michael Duke et al. at NASA are doing some innovative thinking. I look forward to hearing more about their work in the near future. If you are tuned in to their channel, perhaps you would do us the honour of keeping us informed of new developments, as they eventuate?
Thanks Mark, Josh, and Nirgal!
It's good to get feedback on this because it's such a potentially amazing topic that reality checks at regular intervals are advisable!
Josh, I've been reading bits and pieces of Hoagland's stuff over the years. Some of it seems preposterous to me, especially the claims that some Apollo Moon photos show artificial structures in the background - with the best will in the world, I could honestly see nothing in the pictures remotely resembling anything artificial. Enterprise Mission does tend to look too hard for what it wants to see, and ends up seeing it ... even when it's not really there!
This could conceivably be the case again with the IR pictures from Cydonia, although they look suspiciously artificial to my eyes. But your understandable implication, Josh, that Richard Hoagland deliberately fakes pictures, with the express intention of misrepresenting the facts, is, at least in my view, probably wrong.
The people at Enterprise Mission may be mistaken. They may be misguided and self-deluding. But I get the impression they honestly believe what they preach. In other words, they might well be crazy, but they're not bare-faced liars!
There is no question that the Enterprise Mission website was almost inaccessible for nearly two days after this affair started, and, when it became accessible, most of the all-important images were difficult to download and impossible to magnify. I'm no computer/internet expert so I'm in no position to make assertions. But this kind of difficulty would seem to be consistent (at least to the layman) with a damaged website, and maybe a deliberately sabotaged website. So far, nobody in New Mars with expertise in this field has made any comment on this point.
Nirgal's post appears to bolster the case for a deliberate and malicious attack on the Enterprise site, and immediately and inevitably raises the question: Why? I suppose those in Josh's camp would suggest a deliberate attempt by Hoagland to dramatise things by causing this site damage himself, to make it look like 'they' are out to get him!
It's interesting that none of the online space 'magazines', such as Space.com, Spaceref.com, and SpaceDaily has made any reference to all of this, even in an attempt to ridicule it. I hope this isn't the beginning of 'the silent treatment' by the scientific establishment as well.
I confess to being very curious about these latest IR images and I'd like to know more. I find it hard to understand why some people seem happy to ignore what could be one of the most exciting revelations in history. I don't care if you go about trashing the Cydonia thing ... that's fine, if you do it properly. But how can you ignore it?!
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