CompuServe Thread

#Radio Animation?

33 messages in this thread
#150229From: James Coulter[Mindscape]Jan 31, 1995 8:48 AM
>> I have trouble accepting Choas theory as an explanation for anything… >Really. I think its a very interesting explanation for how things happen which otherwise don't make sense. The idea that a little thing can have a profound impact on the overall scheme of things is very powerful. < In the early days of modern science, the general observation was that the universe is approaching a grand form of organization, or unification. Take for example, the assemblance of life from a random scatter of elements. The top. Now, Choas theory suggests that the universe is a chain of mathematically unpredictable events that ultimatley lead to disorganization. The bottom. Reality is either both or neither. 😉 — James — Choreo Motion —
#150258From: David RhotenJan 31, 1995 11:13 AM
James, PMJI and PMCY <Pardon My Contradicting You> <g> but I don't think that Chaos theory really "suggests that the universe is a chain of mathematically unpredictable events that ultimatley lead to disorganization." What Chaos theory REALLY says is that there IS ORDER in events which might at first seem random. That there is a specific reason and point at which a system might change from linear to non-linear (chaotic). That while specific events may be unpredictable over the long term, short-term events and medium-term trends CAN be predicted with reasonable accuracy. In fact, many (though not all) GOOD events/systems are those that ARE chaotic. For example, a heart-attack (ie the transition from sinus rythmn to fibrillation) is an example of BAD chaos (a linear system becoming non-linear). On the other hand, one's brainwave activity while solving a problem is highly-chaotic — and this is good. In fact, studies show that a normal person's brain waves are chaotic and their heart functions are linear. That same person, under the influence of drugs (I don't remember for sure, but I THINK it was cocaine) shows a LINEAR brain wave and a CHAOTIC heart rythmn. There are some med schools where they've got chaos theorists working with cardiologists! I'd really recommend picking up James Gleik's book on Chaos. It's a pretty easy read, and VERY interesting. Also, there was a NOVA episode several years ago that you might be able to find. Chaos theory, IMHO, is more a COMFORT than a threat. Dave
#150327From: Don LandisJan 31, 1995 9:24 PM
That's right, David. I found that an understanding of Chaos relationships may help predict weather patterns very accurately into the next century, but our data collection methods need to improve. Chaos theory is very enlightening. It helps explain things that do seem chaotic at first glance.
#150287From: John EllisJan 31, 1995 4:05 PM
>> Now, Chaos theory suggests that the universe is a chain of mathematically unpredictable events that ultimatley lead to disorganization. The bottom. << The first part I can partially accept, because there is unpredictability, but there is a higher degree of predictability. So it does not follow that everything leads to disorganization. For instance if water gets below a certain temperature it freezes. That is quite predictable. But how water molecules in the air react depends on the circumstances, which vary, which accounts for changing weather patterns from day to day. Weather patterns are predictable to a certain degree for a certain time of year, but can also deviate considerably, ie snow in Paris once every 10 to 20 years. If you were god, and had to think of a scheme by which there would be order in the universe and at the same time allow for change, (not necessarily decay) you would have to build in a "chaos" factor, or a random uncertainty. Otherwise everything would be predictable. Chaos theory explains the uncertainty by accepting the non-linearity of predictability. Mostly in math we deal with linearity because it is neat and orderly, but there is a whole side to math which is not, and that is non-linear equations. But even within that non-linearity there are patterns, and these patterns while random are at the same time orderly. Clouds are one of many good examples. I recently learned that all of mankind that is alive today is related to the same original mother some 50 million years ago. Anthropologists have discovered a portion of the DNA strand which is unique to us, which we all have in common, that can be traced back that far. Peking man, for instance, is no longer thought to be a pre-chinese ancestor, but an extinct species of man. Several others have had to be reclassified as well. That one small twist (a random mutation) in the DNA strand, caused the dominance of our species of mankind. Of all the benign mutations, and some not so benign, none was a significant as this one. A butter fly that caused a typhoon. So while there is order and a certian degree of predictability, say in how a DNA gene is passed on, there is also room for a mutation, an element of unpredictability and that is what Chaos theory attempts to accounts for. John
#150328From: Don LandisJan 31, 1995 9:24 PM
As data on our universe approaches infinity, all events within our universe become predictable, given that we are able to tabulate that data. I believe this can be true including thought and behavior of animals. Chaos theory assumes that there are no unpredictable events, only events that we don't have enough data to predict the outcome that seem chaotic. Your clouds example is a perfect example. If we had all the data required to predict the size and shape of the cloud we could predict it. It's like a pool break. When the Q ball hits the balls react in a very predictable manner but to one who has no understanding of the laws of physics the balls reactions seem chaotic and unpredictable. Water vapour molecules in a cloud, wind molecules, gravity, heat, etc. help shape the future events of cloud formation and motion and weather. If we had all the data and could tabulate it we could predict all future events.
#150349From: EDWARD HARVEYFeb 1, 1995 12:23 AM
PMFJI < If we had all the data required to predict the size and shape of the cloud we could predict it.> Dosnt the Hiesenburg Principle state that in the process of collecting all the data, the data is changed? Ed (in over my head but interested) Harvey
#150400From: David RhotenFeb 1, 1995 10:12 AM
The Heisenberg Uncertainty principle really only applies at the sub-atomic level (the micro-scopic as opposed to the macro-scopic), and basically states that you can not know, with complete accuracy, both the position and velocity of a particle. You can know absolutely where a particle is, but nothing about its velocity — or you can have a rough idea of both its position and velocity — or alsolutely know its velocity but have no idea of its position. The more you know about one, the less you can know about the other. Yes, Quantum Mechanics DOES state that the act of observing a system alters that system. The most famous example of this is the mind experiment known as Schroedinger's Cat. You put a cat in a box, along with a mechanism for releasing a poison gas. The poison-trigger is an isotope that has a 50/50 chance of decaying by half in a minute, say. So, if the isotope decays, the cat dies — if not, the cat lives. Now, the question is, what happens if you don't open the box. The theory goes that all the possibilities (in this case two: cat=dead / cat=alive) co-exist simultaneously as wave functions as long as the system (cat/poison) remains unobserved. So until the VERY moment that you open the box, the cat is both alive AND dead. At that precise instant, one waveform collapses and the other is actualized. (Although, in the many-worlds theory, BOTH events happen, as the universe constantly fractures at every decision-point into multiple realities — so suddenly there would be two universes — one where the cat lived and one where the cat died. Again, remember that this is a THOUGHT experiment, and just meant to illustrate a concept. Again, the real theory only applies at the sub-atomic level, so don't try this at home, kids!<g> For those interested in Quantum Mechanics, I'd reccommend the book "The Dancing Wu Li Masters". Dave
#150522From: EDWARD HARVEYFeb 1, 1995 8:37 PM
I was thinking about the way that any "our scale" attempt to get enough data points to, for example, predict the weather would inevitably change the data collected if only slightly, in the same manner that putting a themometer in a glass of water will change the temp of the water. My overall point would be that whether or not it is theoretically possible to collect enough data to to predict the weather it will always be practically impossible.Another thing that interests me is how we have the experience of choice, not the feeling that every thing we think or do is determined. I couldnt help sending this message.<G> Ed
#150634From: David RhotenFeb 2, 1995 12:17 PM
No, there are some systems, like the weather, that I think are just too large to be able to collect enough data about. I seem to recall an example in the Chaos, the Making of a New Science book that said even if you covered the globe with a grid of sensors at 1' intervals both horizontally and vertically, that the variations in between would still be enough to scramble your long-range forcasts. The more initial info you have, the better you can predict the short-range stuff, but the further into the future you look, the more those predictions just go awry. And you're right, sticking a thermometer/sensor somewhere absolutely has an effect on the ambient temperature it measures. I knew exactly where your message would be, but not at what velocity! Dave
#150705From: david W. mennenohFeb 2, 1995 6:21 PM
Thanks a lot David for the info on Quantum Mechanics. Ever since reading a few of Richard Bach's books I've had an interest. That's where I first heard of Schroedinger's Cat but until now never knew what it was. Sure is an interesting theory. If you haven't read it Bach's book "One" is a distillation of the many worlds theory into a fascinating story, great reading. DM
#150810From: David RhotenFeb 3, 1995 10:58 AM
I think the only Bach book I ever read was JL Seagull. Take a look at "The Dancing Wu Li Masters" — it's an exploration of Quantum Mechanics with nods toward ancient eastern philosophies, and how, in many ways, the two are quite similar. I think you'll like it. Dave
#151101From: david W. mennenohFeb 4, 1995 10:57 PM
I'm actually going to Barnes and Noble tonight to see if I can pick up a copy. Can't wait to read it. Bach's books are wonderful IMO. They don't actually deal with Quantum Mechanics but they are based somewhat in it. Well worth reading, I've read just about all of his books. Well, thanks for the info. and I will keep you posted on the book. DM
#150385From: Jeffrey LererFeb 1, 1995 8:45 AM
Don: <data and tabulation> Always been fascinated by Chaos Theory, some of the math left me unable to pursue. However, Wegner and Tyler's Fractint Program is a rather amazing piece of software and directly applicable to 3-DS. DXF and bitmaps with rhyme and reason, mathematical plot and predictable outcome. Nice spice to add to the cooking process, as subtext in an animation. I might sneak in a little question here, Don.:-> When you render TGAs for compression to the PAR, do you render your TGAs compressed or uncompressed? Forever tweaking I hope sometime something I know can help you. P.S. This is the week the BetaSp 1800s get installed. Jeffrey
#150480From: Don LandisFeb 1, 1995 5:10 PM
I render to compressed TGA's for the PAR as 3DS uses lossless compression for TGA's. I avoid JPEG to go to PAR as it would be double jpeg compression which is severly lossy. Congrats on getting the 1800 If you have a good controller you will be pleased with it.
#150486From: Jeffrey LererFeb 1, 1995 5:38 PM
Don: TGA 3-DS lossless> That's what I was betting on. Still astounded at the quality of the PAR output! Regarding the conroller: I just couldn't resist the Sony Pro discount, and got the FXE100 which will give me good post control, including keying. There are many crossfades, effects and overlays I would rather do in Post, tape to tape. Really like the feel of hard-wired editing. BTW, are you all going to continue discussing Chaos Theory and making me design an entire multi-verse with SYSTEM SEED REALTIME? I just don't have the time to enjoy these exchanges as much as I have! <VBG> Jeffrey
#150567From: Don LandisFeb 1, 1995 11:28 PM
Sounds good. Let me know how you do with that FXE-100. I was torn last summer between the FXE-100 and the FAST VM. It almost came down to a coin toss before I decided. <G>. I've only heard a few negatives regarding the quality of the digital moves in the wipes. Let me know how smooth it is. How is the aliasing? I have yet to see one in action. Chaos? Keep me out of it. I shouldn't have butted in as this deep theory stuff gives me a headache when I should be concentrating on business of exchanging ideas for animation and video. <G> It's fun to read but if I have to think too long on it I don't get any work done. Speaking of which, it's time to switch tapes on the duplicators again… see ya!
#150418From: John EllisFeb 1, 1995 11:29 AM
>> As data on our universe approaches infinity, all events within our universe become predictable… << Interesting interpretation. My conclusion is quite a bit different, because as long as there is the possibility of one unpredictable event, all is potentially unpredictable. We can assume that as we collect more data -> infinity that our predictions will become more and more accurate. Therefore being a useful tool in determining with greater accuracy weather systems for instance. But how do we account for a volcano errupting, which itself is a Chaos driven phenomena, which can influence the weather, and if we do take into account the volcano, how can we predict what will happen, unless we model the volcano to try to determine when it will errupt… At minimum we would have to model our Solar system, but that still doesn't take into account an asteroid entering our solar system…. and so on. But assuming that it is even theoretically possible to collect all the data and account for all the interaction of all the elements, (we would have to recreate the universe in its entirety as a model). We would also have to be able to advance that model ahead of time itself to determine what will happen. This would be the only way that we could predict with a 100% certainty what would happen. In fact the best we could hope for, is that our model would operate in real time with the known universe, as other wise it would be creating the future in advance of our time. Which is theoretically impossible. And according to the physics that I know, just the fact that you had created an alterate model would influence the reality of the universe as we know it. Kinda like the mirror reflecting the mirror reflecting the mirror etc. >> Chaos theory assumes that there are no unpredictable events. << But is that the same as "all events are predictable"? I don't think so, because you can't know all the factors to predict an event. Brain teaser that one. 🙂 John
#150706From: david W. mennenohFeb 2, 1995 6:21 PM
PMJI, But, The general theory of relativity can be used with a great degree of accuracy to calculate the positions of heavenly bodies at a given time. If on knew where everything was at any given moment one could then predict where everything would be at some given measure of time in the future. Of course when we get invaded by aliens it isn't going to matter anyway. 🙂 DM
#150762From: John EllisFeb 3, 1995 5:48 AM
>> The general theory of relativity can be used with a great degree of accuracy…. << David, lets just say you could know where everything was at a given moment. Can we assume that we would be able to predict where everything will be in the next moment? Only if there is one possible choice for each and every object. Quarks supposedly can be in two places at the same time, so you might expect that the quark was in two places at the moment before you made your prediction. But it may be that quarks only show up in two places at the same time when in an excited state. If that were the case how could you have enough knowledge to know where a quark might be once it had reached the point of being at two places at the same time. Unfortuneately this can go nowhere fast, so I'm inclined to leave it, unless someone knows for sure whether an object can have two possible courses of action but is not impelled to favor one over the other. John
#151100From: david W. mennenohFeb 4, 1995 10:57 PM
John, Well, actually, both the general theory of relativity and quantum mechanics can not both be correct. I was just citing a basic premise that relativity makes in that it can predict future events. Currently there is not enough data to make predicitions about much but take for instance the Moon. We can tell exactly where it will be 5 years from now. If we had _all_ the data the predicitions could be scaled down to storms etc and conceivably even further. The many worlds theory of Quantum mechanics states that _everythiing_ happens in alternate realities. I've thought of some interesting ideas based on the many worlds theory. Assuming it is true, then all of us are in this reality based on our quantum signature. It oscillates at a given rate and keeps us affixed in this "dimension." By changing our quantum signature we could also change our reality. This would give you the power to observe the outcome of every decision you've ever made in your life. I was thinking that if one knew what a quantum signature was then one could build a quantum microwave oven. You'd get in to it and it would emit a wave that would change your quantum signature. I suppose a pocket sized one would be more practical though. I think I'm approaching the deep end… DM
#151119From: John EllisFeb 5, 1995 3:22 AM
David, >> I think I'm approaching the deep end… << I know what you mean. I go into a time warp just thinking about it. <g> John
#151324From: David GouldFeb 6, 1995 2:40 PM
<<I was thinking that if one knew what a quantum signature was then one could build a quantum microwave oven. You'd get in to it and it would emit a wave that would change your quantum signature.>> I tried the same thing with an egg but it exploded, which I guess can be considered an alternate reality <g> In the future will there be "Quantum Signature Salons", much like tanning salons, where you pay for a certain number of minutes in the oven? I just hope they have a rotissery for added fun! P.S. I'm well aware that a quantum signature oven isn't like a normal microwave oven. I should know I've got a PANASONIC Signature Shifter 3200 in the kitchen. David "Overcooked left-overs" Gould
#150811From: David RhotenFeb 3, 1995 10:58 AM
The difference is that planetary motion is a LINEAR system. Sensitivity to Initial Conditions (the thing that makes non-linear systems difficult to predict) is not a characteristic of linear systems, and hence, one has no trouble predicting EXACTLY what will occur. Newtonian physics is all about linear systems. Until Chaos theory, non-linear systems were just considered unsolvable and unknowable and random. Dave
#151156From: Paul LempkeFeb 5, 1995 3:45 PM
Dave, <<Until Chaos theory, non-linear systems were just considered unsolvable and unknowable and random>> I've been reading along and just picked this point to jump in. This thread is full of discussion of predictability, and while prediction of real world events is a good measure of a model, one should never confuse a model with the real world. One of the things that is great about Chaos theory, is showing how the application of simple rules can generate mind numbing complexity. Looking at the complexity of our "real" world and trying to deduce root causes or actual rules is IMHO ultimately futile. Besides, creating your own rule systems to generate new universes is more fun and intellectually honest. I'd rather be surprised by the the unpredictability of my own creations than to be able to absolutely predict this one I'm living in. -Paul "I've been enjoying the thread" Lempke Paul
#151314From: David RhotenFeb 6, 1995 2:13 PM
>> …rather than be able to absolutely predict this one I'm living in. You mean like, if I said, "Hey, Jonas! Is 3DS ever gonna be available on NT?" That's an example of a LINEAR system, 'cause the outcome is absolutely predictable every time! <g,d&r>
#151322From: Jonas Ruikis [ADESK]Feb 6, 1995 2:34 PM
Hi David, << >> …rather than be able to absolutely predict this one I'm living in. You mean like, if I said, "Hey, Jonas! Is 3DS ever gonna be available on NT?" >> Am i really that predictable?.. boy I must be boring..
#151694From: David RhotenFeb 8, 1995 11:16 AM
Nah, not boring… loveable! <g> Dave
#151350From: Paul LempkeFeb 6, 1995 4:58 PM
<<You mean like, if I said, "Hey, Jonas! Is 3DS ever gonna be available on NT?" That sounds more like the Heisenberg uncertainty thing, where you can know the product, but not the platform; or the platorm, but not the product and if you make a claim to know both, then Autodesk informs you that you don't know, unless you signed nondisclosure in which case you are just in trouble 🙂
#151695From: David RhotenFeb 8, 1995 11:16 AM
Touche! <BG> Dave
#150557From: David GouldFeb 1, 1995 10:01 PM
<<but can also deviate considerably, ie snow in Paris once every 10 to 20 years.>> Or when I arrive <g> If I ever want to find you John I can simply jump into a thread discussing philosophy or alternate subjects and I'm bound to find you. <<I recently learned that all of mankind that is alive today is related to the same original mother some 50 million years ago.>> That's great hey! So I guess I'm related to everyone. You now tell me that I've got billions of brothers and sisters throughout the world and they'll all probably want Christmas and birthday presents from previous years. It's a good thing I'm from another world. David "Buy your own presents!" Gould
#150587From: John EllisFeb 2, 1995 5:33 AM
>> If I ever want to find you John I can simply jump into a thread discussing philosophy or alternate subjects and I'm bound to find you. << Among other things. But you're right I do have a tendency to get into these kinds of discussions. One can only look at polygons and vertices so long, before the mind begins to seek food. >> same orginal mother some 50 million years ago << My error, its supposed to be 50 thousand years. Its only be a few million years that "humans" have appeared on the scene. The single mother relationship is accurate, so you're my long lost cousin David. <g> Were ya been? 🙂 John
#150594From: Jeffrey LererFeb 2, 1995 8:34 AM
John <mind begins to seek food> polygons and vertices, properly mapped and textured, are delicious. I already said that these notes are too much fun. Now you have strayed into my ground-zero topic, falling through an iterated fractal pool, right into anthropology. Swimming in Lake Victoria, a waterproof PC, animating the birth of mankind<splash> Jeffrey
#150646From: John EllisFeb 2, 1995 1:21 PM
>> polygons and vertices, properly mapped and textured, are delicious. << Well you're right Jeffrey, but for me its a pretty steady diet except for an occassional box of oreo cookies and a bowl of chocolate ice cream. I've even tried some variations but the cookies got all over the keyboard instead of on the polygons as I intended. They're tasty but don't stay where you put them, not like a good polygon. John "Somewhere between Ground zero and 3D Space"