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#91
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![]() Klaus wrote: Inez wrote: don findlay wrote: Inez wrote: don findlay wrote: Inez wrote: don findlay wrote: Inez wrote: It's a bit silly for you to require your theory to be falisfied by geologists using specific methods. I should think any falsification that falsifies would be useful. It most certainly would. But what do you consider would falsify it? I haven't read all of your threads, but I should think it depends on what you're specifically proposing. For example, I shouldn't be at all surprised if the mass of the earth is slowly increasing from picking up meteorites and space dust, or what have you. If your theory is that the earth has mysteriously expanded by 1/16th of an inch in the last million years by growing from within, I'm sure I would have no idea how to falisfy that but would wonder what made you propose the theory in the first place. If your theory is that the earth is mysteriously expanding by a foot day, I would expect you could falsify that theory by using various sensitive instruments to measure. Logically though, I do not see the reason to falsify an unsupported theory. One does not generally propose that one's flowerbed is the magical realm of pixies and run around with a chip on one's shoulder daring everyone to falsify it unless one can produce a pixie or two by way of evidence. And what is the underlying premise/ assumption, ..that all matter was created in a big bang in four seconds flat? By 'Nature_in_a_white-coat'? (or was it minutes?) You know, ...as an underlying theory for physics I think that probably rates worse than the crust pushing the mantle down being the driving force for Plate Tectonics. ( If you want to talk about being silly, that is.) A pixel or two? Madam, ..I give you, ..The Earth, ..and trust it moves for you. And when it does, maybe you could enlighten this mob about why they shouldn't go chasing ageing whores in fishnet, just because they're sailors on the Good Ship Plate Tectonics. I'm sorry if my post got to you during your regular hour for bathtub gin. But now that last night's thrill is gone and all kidding aside, do you have an actual hypothesis? Or is just a general feeling that the earth is growing when no one's looking? I do not think you can ask for falsification until you can be specific about what you want falsified. Well, he did admit that the only person who keeps saying "the crust pushing the mantle down being the driving force for Plate Tectonics." is silly. It's not me saying it. That's the point. http://groups.google.com.au/group/sc...c7a6c81?hl=en& Your call. Now don't duck out, you're doing just fine with your assertion that phase change has nothing to do with the convective cycle. Keep going. Klaus |
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![]() Aidan Karley wrote: By the time I showed up in sci.geo.geology, he'd already worn out most respondants. ... or we'd decided that he was either delusional, or was deliberately trying to cause people to waste their time. Unlike some other posters to this group, I'm not *sure* that he's delusional. I am however sure that I have more interesting things to do with my life other than reply to his burblings. Killfile. Your patience is appreciated, if not shared. Go wiggle your butt at George, and spin your new knockers. Aidan Karley, FGS Aberdeen, Scotland Written at Fri, 16 Jun 2006 09:01 +0100, but posted later. |
#93
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![]() Kermit wrote: don findlay wrote: Kermit wrote: don findlay wrote: snip We pretty well understand convection. You have not yet explained why it's supposed to be a problem. No you don't. not if you incorporate phase-change. Ummm... transition from solid to liquid & back? Why is this a problem? Rock, like butter, steel, and many other substances, gets noticeably softer as it approaches the melting point. It's not an abrupt or complete transition at any one point. The mantle is also a mix of various substances, all of which react slightly differently at various temperatures and pressures. If this is a problem, then you are claiming that (if subduction were part of the process) there would be consequences which we don't see, or consequences which we see which we shouldn't. Could you be specific? Your innuendoes may work for gossip, but it's difficult to respond unless you say what the actual problem is supposed to *be. Come off it. It's you who says you understand convection, and who says I don't understand the first thing about it. And you're going to listen to what I say? Pull the other one. Right now we have a whole heap of informed people arguing about cornstarch and bottleglass and you want to introduce butter and steel? Look,, ..just shut up and wait for it to pass. Meanwhile get a good grip of your pencil, and listen to the teacher. OK? ( If he manages back up over the cliff, that is.) Come on Teach, ..we're waiting... snip Kermit |
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Aidan Karley .group wrote:
In article , Robert Grumbine wrote: Oldest known rocks show minerals of ca. 4 billion years age. Some evidence for a touch older than this - Jack Hills zircon cores may go up to 4.1 gigayears. Old parts (cratons) of the continents exceeed 2 billion years iirc. *Extensive* parts of continents. Let me take you hill walking on the Scottish fringe of the Laurentian Shield one of these days G. I live just south of the Canadian Shield thanks. To know it is to know scrub pine, muskeg and lichen. --D. |
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![]() David Iain Greig wrote: Aidan Karley .group wrote: In article , Robert Grumbine wrote: Oldest known rocks show minerals of ca. 4 billion years age. Some evidence for a touch older than this - Jack Hills zircon cores may go up to 4.1 gigayears. Old parts (cratons) of the continents exceeed 2 billion years iirc. *Extensive* parts of continents. Let me take you hill walking on the Scottish fringe of the Laurentian Shield one of these days G. I live just south of the Canadian Shield thanks. To know it is to know scrub pine, muskeg and lichen. Come on you two sailors, ..away from your romantic walks, scrub pine, muskeg and lichen, and come back to the point of global geology, ...which underpins how we see stratigraphic sequence, species correlation and evolution which is supposed to be what talk.origins is about. Why is the Canadian Shield full of Canadian Shield, whilst Eurasia which is more than twice as big, only got a little fringe showing along its western edge? --D. |
#96
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In article oup,
Aidan Karley .group wrote: In article , Robert Grumbine wrote: Oldest known rocks show minerals of ca. 4 billion years age. Some evidence for a touch older than this - Jack Hills zircon cores may go up to 4.1 gigayears. Old parts (cratons) of the continents exceeed 2 billion years iirc. *Extensive* parts of continents. Let me take you hill walking on the Scottish fringe of the Laurentian Shield one of these days G. Sure. Then come back here and go for a stroll around the north american Laurentians. Oldest sea floor, however, is only around 200-250 million years. ... under the NW Pacific. By the time I showed up in sci.geo.geology, he'd already worn out most respondants. ... or we'd decided that he was either delusional, or was deliberately trying to cause people to waste their time. Unlike some other posters to this group, I'm not *sure* that he's delusional. I am however sure that I have more interesting things to do with my life other than reply to his burblings. Killfile. There's plenty of that from the t.o. regulars too. Rather more folks here know geology than are responding. Your patience is appreciated, if not shared. Have to do something while the runs for my next paper are grinding away ... -- Robert Grumbine http://www.radix.net/~bobg/ Science faqs and amateur activities notes and links. Sagredo (Galileo Galilei) "You present these recondite matters with too much evidence and ease; this great facility makes them less appreciated than they would be had they been presented in a more abstruse manner." Two New Sciences |
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don findlay wrote:
Klaus wrote: Inez wrote: don findlay wrote: Inez wrote: don findlay wrote: Inez wrote: don findlay wrote: Inez wrote: It's a bit silly for you to require your theory to be falisfied by geologists using specific methods. I should think any falsification that falsifies would be useful. It most certainly would. But what do you consider would falsify it? I haven't read all of your threads, but I should think it depends on what you're specifically proposing. For example, I shouldn't be at all surprised if the mass of the earth is slowly increasing from picking up meteorites and space dust, or what have you. If your theory is that the earth has mysteriously expanded by 1/16th of an inch in the last million years by growing from within, I'm sure I would have no idea how to falisfy that but would wonder what made you propose the theory in the first place. If your theory is that the earth is mysteriously expanding by a foot day, I would expect you could falsify that theory by using various sensitive instruments to measure. Logically though, I do not see the reason to falsify an unsupported theory. One does not generally propose that one's flowerbed is the magical realm of pixies and run around with a chip on one's shoulder daring everyone to falsify it unless one can produce a pixie or two by way of evidence. And what is the underlying premise/ assumption, ..that all matter was created in a big bang in four seconds flat? By 'Nature_in_a_white-coat'? (or was it minutes?) You know, ...as an underlying theory for physics I think that probably rates worse than the crust pushing the mantle down being the driving force for Plate Tectonics. ( If you want to talk about being silly, that is.) A pixel or two? Madam, ..I give you, ..The Earth, ..and trust it moves for you. And when it does, maybe you could enlighten this mob about why they shouldn't go chasing ageing whores in fishnet, just because they're sailors on the Good Ship Plate Tectonics. I'm sorry if my post got to you during your regular hour for bathtub gin. But now that last night's thrill is gone and all kidding aside, do you have an actual hypothesis? Or is just a general feeling that the earth is growing when no one's looking? I do not think you can ask for falsification until you can be specific about what you want falsified. Well, he did admit that the only person who keeps saying "the crust pushing the mantle down being the driving force for Plate Tectonics." is silly. It's not me saying it. That's the point. http://groups.google.com.au/group/sc...c7a6c81?hl=en& Your call. Now don't duck out, you're doing just fine with your assertion that phase change has nothing to do with the convective cycle. Keep going. The link you posted did not support your point at all. In fact, the quotes ALL confirmed that natural convection of the mantle drives plate tectonics. The only dispute is which of the two legs , hot or cold, has greater effect on the Earth's surface features. Professor Uyeda seems to think subduction has a greater role. That is what he was talking about when he said subduction drives plate tectonics. However, he never made the silly statement that "the crust pushing the mantle down being the driving force for Plate Tectonics.". That is a silly mischaracterization of his quotes. People, including me, have repeatedly asked you to learn about natural convection. Are you proud of your ignorance? Are you too stubborn to spend 5 minutes looking up information (especially when you have been given links with good diagrams)? Perhaps you actually did learn about natural convection and feel you are too invested in your idea. Natural convection is simply heat transfer be circulation in a fluid, caused by gravity acting on fluids of differing density. There is a heat source at the bottom and a heat sink at the top. Hot fluid is generally less dense than cold fluid. The hot fluid rises, and the cold fluid sinks. These motions usually spontaneously set up currents. This can easily be oserved in a pot of water being heated on a stove, prior to boiling. The material of the mantle is hot enough to flow slowly as a fluid; it can undergo plastic deformation indefinitely. The Tectonic plates float on top of the surface currents of tha mantle. Klaus |
#98
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![]() Robert Grumbine wrote: ... or we'd decided that he was either delusional, or was deliberately trying to cause people to waste their time. Unlike some other posters to this group, I'm not *sure* that he's delusional. I am however sure that I have more interesting things to do with my life other than reply to his burblings. Killfile. There's plenty of that from the t.o. regulars too. Rather more folks here know geology than are responding. Whew! Well that's a relief, and in line with what I thought must be, .... I was beginning to wonder, .. At least that justifies posting to talk.origins. Well, with *that* confirmed all we need now is winkling them out and confirmation that they can actually read for what is it? ...'comprehension' - rather than just confirming or denying bias. Your patience is appreciated, if not shared. Have to do something while the runs for my next paper are grinding away ... ....And even an insight into what I've been calling for yonks the real machinery of science - publishing papers. (I wonder what sand grain Aidan is publishing on this year.) Thanks Bob. Kick you heels up and be sharp about it, ..and whatever you do , don't be controversial, or you could find yourself having to do it aaAAll over again, ..and that would never do, would it? Why, if you're really controversial (why not treat them to your great idea about 'flat') you might get yourself demoted to Kook and have to bash some corn starch with a recondite spoon for a while. Robert Grumbine http://www.radix.net/~bobg/ Science faqs and amateur activities notes and links. Sagredo (Galileo Galilei) "You present these recondite matters with too much evidence and ease; this great facility makes them less appreciated than they would be had they been presented in a more abstruse manner." Two New Sciences |
#99
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![]() Klaus wrote: don findlay wrote: It's not me saying it. That's the point. http://groups.google.com.au/group/sc...c7a6c81?hl=en& Your call. Now don't duck out, you're doing just fine with your assertion that phase change has nothing to do with the convective cycle. Keep going. The link you posted did not support your point at all. In fact, the quotes ALL confirmed that natural convection of the mantle drives plate tectonics. The only dispute is which of the two legs , hot or cold, has greater effect on the Earth's surface features. Professor Uyeda seems to think subduction has a greater role. That is what he was talking about when he said subduction drives plate tectonics. However, he never made the silly statement that "the crust pushing the mantle down being the driving force for Plate Tectonics.". That is a silly mischaracterization of his quotes. You are wrong. It's not his quote at all. Read the post. It is jpl nasa. But it could equally well be USGS and a dozen other institutionalised gets. One thing is certain, and I repeat this, it is *NOT ME* saying it. I happen to think it is as stupid as you. Though I have absolutely no doubt that once you clue on to who is behind it you could find it in you to rearrange your position on that one, couldn't you? But something needs to push that plate down, to stop it floating and start it sinking. What can it be? ( If it's not the crust pushing it down.) People, including me, have repeatedly asked you to learn about natural convection. Are you proud of your ignorance? Umm, ..you have just spectacularly demonstrated that you are not only ignorant of the consensus position of Plate Tectonics, but that you cannot read. You win the big wooden spoon. Go beat some corn starch with it. Are you too stubborn to spend 5 minutes looking up information (especially when you have been given links with good diagrams)? Perhaps you actually did learn about natural convection and feel you are too invested in your idea. And the Moorlands School science page is your reference too for Plate Tectonics? (Oh dear...) Natural convection is simply heat transfer be circulation in a fluid, caused by gravity acting on fluids of differing density. There is a heat source at the bottom and a heat sink at the top. Hot fluid is generally less dense than cold fluid. The hot fluid rises, and the cold fluid sinks. These motions usually spontaneously set up currents. This can easily be oserved in a pot of water being heated on a stove, prior to boiling. The material of the mantle is hot enough to flow slowly as a fluid; it can undergo plastic deformation indefinitely. ('viscous', ..it's viscous) (not plastic) So, ..again, ..the burning question which everyone wants to know the answer to, is (wait for it) ....why does the oceanic plate sink when it reaches continental crust? (which is the point of the quotes.) Have you got it now? Once it reaches the continental crust it gets pushed down, and the falling slab then drives convection, ..which drives plate tectonics. (We'll deal with the silly heat aspect breaking up the crust later) The Tectonic plates float on top of the surface currents of tha mantle. Klaus |
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Strip away all the polished prose and you are still working with a
stationary Earth mechanism for crustal motion,personally I would be genuinely embarrassed to be caught discussing something which has equal validity as an 'expanding earth' when a more satisfactory link can be made between the dynamics behind the Earth's shape and the motion of the component fractured plates. All this crank calling must be getting in the way of the intuitive processes which will affirm,even in rough outlines,that differential rotation of the flexible interior of the Earth along the entire length of the axis conditions the planetary shape and also the motion of the fractured crust. I can stand back and watch you make fools of yourselves unecessarily but then again if intelligence was present I would not have to keep demonstrating the fundamental basics of rotational dynamics and its affect on terrestial surface features to an audience which actually celebrates stationary Earth mechanism with no link to the planetary shape. I will know when you reach my level of understanding on this matter and indications are that for the usual dumb reasons,mantle convection/stationary Earth models are now being forced through aggresively when intelligent men should be running away from it. So Rob,I will not be unkind and call you one thing or another except misguided but you can draw satisfaction that there are many more just like you. Robert Grumbine wrote: In article . com, don findlay wrote: Robert Grumbine wrote: [snip, also snip of most personal attacks] Have to do something while the runs for my next paper are grinding away ... ...And even an insight into what I've been calling for yonks the real machinery of science - publishing papers. Thanks Bob. ...and whatever you do , don't be controversial, or you could find yourself having to do it aaAAll over again, ..and that would never do, would it? Why, if you're really controversial you might get yourself demoted to Kook ... The paper I was referring to there is relatively uncontroverial. I'll be applying a known technique (from a different field than mine) to a known problem and getting a somewhat better answer than was previously possible. And get it more easily. The purpose being more one of introducing the new technique to my field, as it has good general characteristics for what we do. This one is only controversial insofar as some people are resistent to ideas from outside. Aside from being sure to explain the new technique well enough, it isn't a difficult paper to write. Another one I've been working on, on my own time, _will_ be controversial. Knowing that, I'm doing what's normal in science -- beating on it to make sure that it really does hold up as well as it seemed to at first glance. Amazingly, as I collect more information, it holds together even better and has _more_ general application than I thought at the start. But I still haven't gotten all the details documented, nor ensured that the magnitudes of the effects ultimately work out. There are still some gulfs between correlation and causation that need to be filled. So I am filling them. It's work, but that's what makes it science rather than self-admiration. If it does hold up, it'll solve a problem that has been outstanding for over a century. Not Nobel kind of work, but if you can solve a problem that's stood for over a century, you've done somethng pretty good. Claiming to solve such a problem is immediately controversial. Turns out, if my notion works, that it will also have interesting implications far from that particular problem, which makes it even more probably controversial. Both mean that I, like anyone claiming to resolve long standing problems, have some extra requirements to ensure that the work is truly solid. After publication (assuming it withstands my own attacks that long), it will then be beaten on by the professionals in the relevant fields some more. If it stands up to those attacks as well, _then_ we'll know that I really did have a good idea. I require much more of my own work than some pretty pictures followed by 'looks right to me'. I see no reason to give you an easier standard. -- Robert Grumbine http://www.radix.net/~bobg/ Science faqs and amateur activities notes and links. Sagredo (Galileo Galilei) "You present these recondite matters with too much evidence and ease; this great facility makes them less appreciated than they would be had they been presented in a more abstruse manner." Two New Sciences |
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