23 results found.
... Science Frontiers ONLINE No. 58: Jul-Aug 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Chaotic Dynamics In The Solar System The following abstract appeared in a 1988 issue of Eos, a weekly publication of the American Geophysical Union. "Newton's equations have chaotic solutions as well as regular solutions. The solar system is generally perceived as evolving with clockwork regularity, yet there are several physical situations in the solar system where chaotic solutions of Newton's equations play an important role. There are physical examples of both chaotic rotation and chaotic orbital evolution. "Saturn's satellite Hyperion is currently tumbling chaotically, its rotation and spin axis orientation undergo significant irregular variations on a time scale of only a couple of orbit periods. Many other satellites in the solar system have had chaotic rotations in the past. It is not possible to tidally evolve into a synchronous rotation without passing through a chaotic zone. For irregularly shaped satellites this chaotic zone is attitude-unstable and chaotic tumbling ensues. This episode of chaotic tumbling probably lasts on the order of the tidal despinning timescale. For example, the Martian satellites Phobos and Deimos tumbled before they were captured into synchronous rotation for a time interval on the order of 10 million years and 100 million years, respectively. This episode of chaotic tumbling could have had a significant effect on the orbital histories of these satellites." Theis abstract continues, naming as other candidates for chaotic histories: some of the asteroids, Miranda (a satellite of Uranus), and the planet Pluto. ...
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... Science Frontiers ONLINE No. 90: Nov-Dec 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is nothing certain anymore?It was discouraging enough to learn that many natural systems, from simple pendulums to our weather, are basically chaotic; that is, tiny changes in the initial conditions upon which predictions are based can lead to highly unpredictable outcomes. Chaotic systems are usually qualitatively predictable but not quantitatively predictable. We have no choice but to live with this chaos; it seems that that's the way the cosmos is constructed! However, it now seems that the situation is even worse than chaotic! Some systems, perhaps most systems, are also indeterminate, meaning that we cannot predict their qualitative behavior either. A simple example is the water swirling down the bathtub drain. This is not only chaotic but it has two qualitative final states: clockwise and counterclockwise. Regardless of which hemisphere you are in, you can change the direction of swirl with negligible effort. Each of the two final states of motion is still quanti tatively unpredictable. Systems that are more complex will possess many different final states, all chaotic. Can nature really be fundamentally chaotic as well as qualitatively uncertain? J.C . Sommerer and E. Ott have mathematically examined a relatively simple system consisting of a single particle moving in a force field, experiencing friction, and being periodically jolted. Besides settling into chaotic motion, this particle may also be forced away to infinity -- two radically different final states. The analysis revealed that for any ...
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... Science Frontiers ONLINE No. 67: Jan-Feb 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Direct observations of hyperion's chaotic motion Hyperion is a 150-kilometer-diameter satellite of Saturn. Hyperion's irregular shape and the gravitational pull of Titan, a larger satellite of Saturn, make it a prime candidate for chaotic motion. After accumulating 53 Hyperion-days of observation, J. Klavetter has confirmed this theoretical suspicion. Hyperion's brightness varies wildly from day to day, as it spins unpredictably. The laws of motion and the largest computers are helpless here; although computer simulation can identify situations where chaos might develop. More alarmingly, some "subtle" chaos also appears in computer simulations of Pluto's motion and "perhaps other planets." (Kerr, Richard A.; "First Direct View of Solar System Chaos," Science, 246: 998, 1989.) Comment. Contemplate what might happen -- or might have happened already -- if any of the other planets moved chaotically. From Science Frontiers #67, JAN-FEB 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 62: Mar-Apr 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Measles epidemics: noisy or chaotic?The incidence of measles in New York City, 1928-1964. Noise or chaos? We should talk about chaos more. This subject threatens to undermine the popular notion that nature is fully deter ministic. We like to think that if we are given enough data that scientific laws will allow us to predict the future ac curately. But, unhappily, determinism stumbles when trying to cope with the weather, asteroid motion, the heart's electrical activity, and an increasing number of natural systems. Chaos lurks everywhere! The growing split in scientific outlook is seen very clearly in the statistics of New York City measles epidemics before mass vaccinations. Take a look at the graph of recorded cases. The expected peaks occur each winter, but there is a strong tendency toward alternate mild and severe years. Very nice mathematical models exist that purport to predict the progress of epidemics. They take into account such factors as the human contact rate, disease latency period, the existing immune population, etc. It is all very methodical, but it fails to account for the irregularities in actual data. Deterministic scientists claim that just by adding a little "noise" they could duplicate the observed curve. On the other hand, a very simple model that acknowledges the reality of chaos easily duplicates the measured data. Who is right? The determinists and chaosists (chaosians?) are now fighting it out ...
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... Science Frontiers ONLINE No. 71: Sep-Oct 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Wyoming: is old faithful a strange attractor?" Eruptions of Old Faithful Geyser are generally perceived as extremely regular events, with variation of eruptive interval being attributed to random noise. The governing equations for such a hydrothermal system are highly non-linear, therefore it is reasonable to assume that such systems are capable of operating in regines that display chaotic behavior. Three-dimensional state-space reconstruction of eruption time data provides strong evidence of a strange attractor quite similar to the Rossler attractor. Establishing the system as chaotic indicates that while one can predict eruptive intervals in the short term, long term predictions regarding Old Faithful's eruptive behavior are impossible, no matter how carefully and accurately the system is modeled. The mean eruptive interval of Old Faithful has changed over time. This is consistent with the behavior of a chaotic system, which by definition must be nonstationary in the mean. Seismic activity is believed to be a perturbation shifting Old Faithful into a new chaotic state with a different shape to the strange attractor. A simple non-linear dynamic model of geyser behavior is proposed that leads to chaotic behavior and is consistent with the observations of eruption interval data for Old Faithful." (Nicholl, Michael, et al; "Is Old Faithful a Strange Attractor?" Eos, 71:466, 1990.) Comment. "Strange attractor" is a specialized term employed in chaos analysis. So, Old Faithful is ...
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... really know next to nothing about the real workings of life-as-a -whole, its ups and downs. It is so easy to say that a group of organisms was done in by a temperature change or the fall of acid rain brought on by the impact of an asteroid. We always look for external forces, whereas the real cause of "crises" in the history of life may be intrinsic to life itself. With a tip of the hat to the Gaia hypothesis, let us think of life-as-a -whole as a most complex, interlinked system. What might be the dynamics of such a megasystem? From the mathematical point of view, many of the processes involved, as life copes with the environment, are doubtless nonlinear, which means that chaotic conditions may sometimes prevail. In fact, the graphs presented below could have been taken right out of a book on chaotic systems. Life's extinctions and explosions might have no connection to asteroids, Ice Ages, or global volcanism. If something as simple as a spherical pendulum can lapse into chaotic motion, life-as-a -whole should show occasional wild behavior, too. Take our planet's weather as another example. Idealists once thought that given enough observations and computer power, weather could be predicted. But, alas, our atmosphere has also turned out to be a chaotic system, and long-term predictions are next to impossible. So, too, with life and its development. Those extinction-explosion plots may be just the paleontological expressions of a ...
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... Issue Sourcebook Project Sourcebook Subjects The earth: a doubly charmed planet In SF#85, we learned that the evolution of advanced life forms on earth may have depended upon the protective influences of Jupiter and Saturn. These two giant planets can gravitationally deflect potentially devastating asteroids and comets away from the earth. It seems now that we are doubly lucky! Computer runs demonstrate that the presence of our large moon has stabilized the earth's spin axis down the eons. Presently, the earth's spin axis makes an angle of 23.5 with the plane of the earth's orbit (its "obliquity"). The well-known result is our yearly procession of seasons. Without the steadying effect of the moon, however, the earth's obliquity would probably have swung chaotically over much larger values. Such extreme changes would have been inimical to the development of life, particularly advanced life. As a case in point, the polar axis of Mars, with only two tiny moons to dampen its spin excursions, seems to have gone through many wild swings, as indicated in the figure. What deadly climatic changes must have wracked our sister planet! (Touma, Jihad, and Wisdom, Jack; "The Chaotic Obliquity of Mars," Science, 259: 1294, 1993. Also: Laskar, J., and Robutel, P.; "The Chaotic Obliquity of the Planets," Nature, 361:608, 1993.) Comment. The successful evolution of higher life on earth (a presumption!) therefore seems to have depended upon ...
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... Science Frontiers ONLINE No. 92: Mar-Apr 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Chaos At The Amusement Park Readers of Science Frontiers are well aware that some denizens of our solar system exhibit chaotic motion, as do some pendulums and even dripping faucets. Chaosists seem to be able to find chaos everywhere they look. If you have ever ridden on that amusement park staple called the Tilt-A -Whirl, you will recall that the ride is fun because you never know exactly what the car you are riding in will do as the platforms move along the hilly circular track. Each car is free to rotate about its center and will also tilt in all possible directions as the cars go up and down the hills. Can one mathematically predict whether the car will spin clockwise, counterclockwise, or not at all? What a neat problem for a physicist! And two physicists, R.L . Kautz and B.M . Huggard, have developed a mathematical model of the Tilt-A -Whirl. By integrating the equation of motion, they find that the Tilt-A -Whirl is, indeed, a chaotic system. You really cannot tell what the car is going to do -- even if you take your laptop along with you! (Kautz, R.L ., and Huggard, Bret M.; "Chaos at the Amusement Park: Dynamics of the Tilt-A -Whirl," American Journal of Physics, 62:59, 1994.) From Science Frontiers # ...
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... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Unpredictable Things Simple spherical pendulums are fixtures of physics labs, to say nothing of grandfather clocks. It is now widely recognized that pendulums can behave chaotically; that is, unpredictably. As the pendulum bob swings farther away from its rest position, the restoring force becomes nonlinear; i.e ., not proportional to the displacement. At some combination of displacement and driving frequency, a region of chaos may develop, in which theory is powerless to tell what is going to happen next. "It is not just the behavior of pendulums that has sprung this surprise. Systems as diverse as simple electrical circuits, dynamos, lasers, chemical reactions and heart cells behave in an analogous way and the implications extend far beyond these examples -- to matters such as weather forecasting, populations of biological species, physiological and psychiatric medicine, economic forecasting and perhaps the evolution of society." (Tritton, David; "Chaos in the Swing of a Pendulum," New Scientist, p. 37, July 24, 1986.) Comment. Some of the anomalies we record may be the consequence of simple systems gone wild. Chaotic motions of some asteroids and at least one solar system moon are already suspected. Imagine what might happen in much more complex systems, such as biological evolution (hopeful monsters?), brain development (idiot savants?), etc. From Science Frontiers #47, SEP-OCT 1986 . 1986 ...
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... flow, Periodic Spring discharges about 285 gallons/second into a stream 9 feet wide and 1 feet deep. Periodic Spring, therefore, is fairly impressive, but it is not anomalous. (Mohlenbrock, Robert H.; "Periodic Spring, Wyoming," Natural History, 99: 110, April 1990.) Comment. Siphon action nicely explains periodic springs. Water keeps flowing through the upper loop until the water level in the reservoir drops below the siphon intake. The spring will not flow again until the reservoir fills to the top of the upper loop(level a) again initiating siphon action. Siphon action seems simple and easy to explain; why mention it here? Well, spherical pendulums are ostensibly simple, too, but we now know that they sometimes run amok and chaotic motion develops. Like Old Faithful Geyser, there is a possibility that periodic springs also may exhibit chaotic behavior on occasion. From Science Frontiers #71, SEP-OCT 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Drip, drop, drup, dr**A dripping faucet is usually conceived as a well-ordered dependable phenomenon. You simple turn the faucet a bit counterclockwise and the drip rate increases. It's so simple. Surprise! Dripping faucets are chaotic systems, as described in the following Abstract: "The dripping water faucet is a simple system which is shown in this article to be rich in examples of chaotic behavior. Data were taken for a wide range of drip rates for two different faucet nozzles and plotted as discrete time maps. Different routes to chaos, bifurcation and intermittency, are demonstrated for the different nozzles. Examples of period-1 , - 2, -3 , and -4 attractors, as well as strange attractors, are presented and correlated to the formation of drops leaving the faucet." (Dreyer, K., and Hickey, F.R .; "The Route to Chaos in a Dripping Water Faucet," American Journal of Physics, 59:619, 1991.) Comment. O.K ., so faucets dribble a bit. From Science Frontiers #77, SEP-OCT 1991 . 1991-2000 William R. Corliss ...
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... Sourcebook Project Sourcebook Subjects The Planets Are Unpredictable It was only about 40 years ago when astronomers, aghast at Velikovsky's vision of worlds in collision, stated very firmly that the solar system was presently stable and had been so for eons. Now it seems that they may have been a bit hasty and all-encompassing. Not that the Velikovsky scenario is correct or that Mars might at any moment depart from its present orbit, but rather that astronomers must now admit an inability to predict planetary motion over billions of years - even tens of millions of years! For the solar system, if those ubiquitous computers are correct, is not a well-behaved family of planets. J. Laskar concludes from extensive numerical experiments: "The motion of the Solar System is thus shown to be chaotic, not quasiperiodic. In particular, predictability of the orbits of the inner planets, including the Earth, is lost with a few tens of millions of years." (Laskar, J.; "A Numerical Experiment on the Chaotic Behavior of the Solar System," Nature, 338:237, 1989.) Comment. Laskar's comments are directed toward the future, but the same conclusions should apply if we ran the solar system backwards in time. From this very narrow perspective of celestial mechanics, one cannot say positively that the planets, the inner ones especially, could not have radically altered their orbits within the past few millions of years. Reference. See ABB1 in our catalog: The Sun and Solar System Debris for more on the solar system's instability ...
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... Science Frontiers ONLINE No. 82: Jul-Aug 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects DID A HALF MILLION METEORS FALL ON THE CAROLINAS?The Carolina Bays get scant notice in the literature these days, but E.R . Randall has rescued them this undeserved obscurity. "For years, people living along the Carolina coast have marveled at a series of strange, oval-shaped depressions in the ground called 'Carolina Bays.' "From the air these shallow, marshy bogs created a landscape that resembles the pockmarked surface of the moon. They crisscross each other in a chaotic tapestry, but at ground level are hardly noticeable because of thick forests and semitropical swamplands. "Highways and modern housing developments have all but obliterated thousands of the bays, leaving them visible only to trained eyes. "Still, it is estimated that no fewer than 300,000 such bays, ranging from a few feet across to almost two miles in diameter, dot the East Coast landscape from southern New Jersey to northeastern Florida. One source places the number at more than half a million." Map showing areas of abundant Carolina Bays and frequent meterorite finds. However, meteorites are rare in the areas of the bays. Floyd continues with a brief history of the Carolina Bay region and then reviews some of the theories of origin that have been proposed. Two now-discarded mechanisms of formation invoked: (1 ) immense schools of spawning fish; and (2 ) icebergs stranded as the Ice Ages waned. In presenting today ...
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... Science Frontiers ONLINE No. 58: Jul-Aug 1988 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Maize in ancient india Lanzarote: un noveau bimini? Astronomy Is the earth seeding the rest of the solar system? One of the most astonishing discoveries of modern science! A COSMIC CAUSE FOR THE OZONE HOLE? Chaotic dynamics in the solar system Biology Do right-handers live longer? John heymer still doesn't believe the stock shc explanations! Bacteria Preternaturally rapid development of photosynthesis? Geology Gentry's tiny mystery-- unsupported by geology Earlier pages in earth's history revealed Geophysics From forteanism to science Mystery at novaya zemlya Ball lightning or mirage of venus? Psychology Mystery of the idiot savant General Has the speed of light decayed? Anomalistics at the aaas meeting ...
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... Science Frontiers ONLINE No. 67: Jan-Feb 1990 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology New world culture old Fantastic claim by explorer Archeological riddle The ancient-humans-in-europe controversy Astronomy Direct observations of hyperion's chaotic motion A NEW QUASAR DISTANCE RECORD: A NEW EMBARRASSMENT Explaining lunar flashes with life-savers Astronomers up against the "great wall" Biology Dna on cell surfaces Really-deep rivers Geology We live atop a chemical retort Australasian tektites coughed up by a moon of jupiter? Microorganisms complicate the k-t boundary Continuity at the conrad discontinuity Geophysics Eyewitness account of cropcircle formation Possible ball lightning in ankara Psychology Solar activity and bursts of human creativity Geomagnetic activity related to mental activity Psychotherapy may delay cancer deaths Physics A WATCHED ATOM IS AN INHIBITED ATOM General A HUNGARIAN UFO ...
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... Science Frontiers ONLINE No. 62: Mar-Apr 1989 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The cup-and-ring motif in america Vikings in south america? Astronomy THE "RESIDUE FALLACY" DOES NOT APPLY TO ALL RESIDUES! RECENT MARTIAN RIVERS ERODE ALBA PATERA Dancing to the comets' tune Biology Measles epidemics: noisy or chaotic? A MAMMOTH TALE! A HAIR-RAISING PHENOMENON Geology THE COOKIE CUTTER STRIKES AGAIN -- FOUR TIMES - IN NORWAY Geophysics Visual sightings of vortices in britain WHAT IS EXPLODING 400 MILES BENEATH OUR FEET? Psychology Researches in reincarnation Physics MORE CHALLENGES TO NEWTON'S LAW OF GRAVITATION ...
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... increase in the temperature of ocean-bottom water during that period. Biological evidence for the event occurs in the skeletons of marine animals that litter the ocean sediments laid down in that lethal period. On the land, prior to the methane release, North America was'populated by an odd assortment of unfamiliar mammals; "unfamiliar" to ustoday because they left no descendents. These archaic mammals succumbed to the effects of the sudden global warming and were ultimately replaced by the ancestors of our familiar deer, horses, and canines that streamed across the now-open Bering Land Bridge. Geology, too, provides evidence of this traumatic event. Ocean-bottom cores reveal landslide debris that was probably triggered by the sudden decomposition of great masses of methane hydrate. Seismic probes of the ocean sediments reveal chaotic zones suggesting a violent event. (Kerr, Richard A.; "A Smoking Gun for an Ancient Methane Discharge," Science, 286:1465, 1999. Monastersky, R.; "Global Burp Gassed Ancient Earth," Science News, 156:260, 1999.) Philosophical observation. Just as natural fires of grasslands and forests eventually lead to vigorous new growth, it appears that methane (a natural product of the decomposition of organic material) also sweeps out old species and replaces them with new ones. No doubt this planetary cleansing is another ramification of the Gaia Hypothesis. Be advised that Gala still lives, and that huge, unstable, methane-hydrate deposits still lie buried under many continental shelves. From Science Frontiers #128, MAR-APR 2000 . ...
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... -- - 03-20-71 AD Chaeronia Plutarch The dates of these five eclipses are not at issue; back-calculations confirm them. However, these eclipses should not have been observable where reported. For example, the path-of-totality for the 136-BC eclipse should have been 4000 kilometers west of Babylon! Today's astronomers have no choice but to discard these data as erroneous. Yet, it is hard to be wrong about where one observes a total solar eclipse, and here we have five errors in location. Furthermore, mixed in with the old eclipse records are well-behaved ones in 763 BC, 240 BC, and 195 BC; all seen where our back-calculations say they were visible. James wonders if the earth may have wobbled chaotically in the past. Such motion could account for the many flood myths and allusions to high sea levels. (James, Peter M. ; "Political Correctness in Science," New Concepts in Global Tectonics, no. 19, June 2001.) From Science Frontiers #139, Jan-Feb 2002 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...
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... While volcanic eruptions form most sea-mounts, these mountains consist of a nonvolcanic rock called serpentinite, and oceanographers are not entirely sure how the serpentinite mountains formed." The theory of plate tectonics has the Pacific plate diving under the Philippine plate along the Mariana trench. It may be that water trapped in the downgoing crust leaks out, rises, and serpentinizes the crust above. This altered rock, being lighter than that surrounding it, may slowly rise through it, eventually forming undersea mountains. (Monastersky, Richard; "Novel Mountains and Chimneys in the Sea," Science News, 134:333, 1988.) Comment. This all sounds pretty speculative, but those mountains had to come from somewhere. Perhaps the serpentinite mountains are just one manifestation of a larger phenomenon: the chaotic slithering and popping up and down of crustal material. The following is from New Scientist: "Geophysicists in California and Illinois say that they have found the Earth's "missing" crust by analyzing shock waves from earthquakes to determine the chemical composition of the Earth's interior. If the researchers are correct, then the view of the interior of the Earth that scientists have previously accepted is wrong. "The geophysicists say that they have found minerals like those in the Earth's crust in a layer of crustal material, 250 kilometres thick, which starts about 400 kilometres below the surface and extends to a depth of 650 kilometres. There is enough crustal material at this level, according to geophysicists to form a crust 200 kilometres thick - the average thickness of the Earth' ...
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... blind forces acting upon them. There is, then a deep mystery as to how a seemingly directionless assembly of passive entities conspire to produce the elaborate structure and complex organisation found in nature." The author of this introductory paragraph, P. Davies, asks, as we all do, "What is the origin of this creative power?" In groping for an answer, he presents first a common example of "blind" organization: the hexagonal convection cells in a pan of heated water. Using for a stepping stone the cooperative action of atoms in a laser, he leaps to the development of an embryo from a single strand of DNA! All such systems are "open"; that is, energy can flow in and out. They are also nonlinear, which means that chaotic, unpredictable action may occur. Davies implies that such action can be "creative," almost as if they possessed free will! His final example is that of the network with large numbers of interacting sites or nodes. With random inputs, large networks do exhibit self-organization. Network theory is now very popular in the field of artificial intelligence. (Remember the computer Hal in 2001?) Davies's conclusion: ". .. Neo-Darwinism, combined with the mathematical principles emerging from network theory and related topics, will, I am convinced, explain the 'miracle' of life satisfactorily." (Davies, Paul; "The Creative Cosmos," New Scientist, p. 41, December 17, 1987.) The superorganism. One week later, ...
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... complexity" are the current buzz words. They betoken, finally, the formal recognition by science that nature is frequently: Unpredictable (as in weather forecasting beyond a few days) Complex (as in any life form) Nonlinear (as in just about all real natural phenomena) Discontinuous (as in saltations in the fossil record) Out-of-equilibrium (as in real economics) Eroding fast are the philosophical foundation stones of the clockwork universe: the idea that nature is in balance, that geological processes are uniformitarian, that life evolved in small, random steps, and that the cosmos is deterministic. My view is that anomaly research, while not science per se, has the potential to destabilize paradigms and accelerate scientific change. Anomalies reveal nature as it really is: complex, chaotic, possibly even unplumbable. Anomalies also encourage the framing of rogue paradigms, such as morphic re-sonance and the steady-state universe. Anomaly research also transcends current scientific currency by celebrating bizarre and incongruous facets of nature, such as coincidence and seriality. However iconoclastic the pages of this book, the history of science tells us that future students of nature will laugh at our conservatism and lack of vision. Such heavy philosophical fare, however, is not the main diet of the anomalist. The search itself is everything. My greatest thrill, prolonged as it was, was in my forays through the long files of Nature, Science. the English Mechanic, the Monthly Weather Review, the Geological Magazine, and like journals. There, anomalies and curiosities lurked in many an issue ...
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... Science Frontiers ONLINE No. 120: Nov-Dec 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bye-bye Mercury, and Maybe Mars During the 1950s, the campaign of mainstream science to discredit Velikovsky assured the public that the solar system was the epitome of stability -- wayward planets were impossible. Then along came chaos theory which implied that the flight of a butterfly in Brazil could, in principle, affect weather in Canada. In effect, a slight change in initial conditions could, in the fullness of time, have very large effects. Now, it is generally admitted that the solar system is chaotic after all. Each planet is subject to the tiny, butterfly-like gravitational tugs of the other planets, especially Jupiter. Given enough time, these gravitational nuances can result in the ejection of a planet from the solar system -- and may already have done so in the past! Mercury and Mars are the most vulnerable on a billion-year time scale. In the case of Mercury, its orbit will become more and more elliptical according to computer simulations. Eventually a close gravitational encounter with Venus is possible. This could send Mercury careening off into deep space. The probability of this happening is only 1 in a 1000 over 5 billion years, but it is not zero. Mars might likewise be ejected by a passing nudge from earth. However, this encounter could go the other way. Depending upon the celestial dynamics of the encounter, Mars might gravitationally fling earth out into the Galaxy, and ...
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... QUASAR MORPHOLOGY AND COMPONENT DYNAMICS AQO1 Quasar Fuzz: What Is It? AQO2 Anomalies of Quasar Radio-Jet Structures AQO3 Superluminal Velocities in Quasars AR SATURN ARF SATURN'S INTRINSIC RADIATION ARF1 The Saturn Electrostatic Discharges (SEDs) ARF2 Measurements of Saturn's Intrinsic Energy ARF3 Sudden, Temporary Cessation of Radio Emissions ARL SATELLITE AND RING ANOMALIES ARL1 Pre-Spacecraft Observations of Extra Rings ARL2 Knots in Saturn's Rings When Viewed Edgewise ARL3 Bright Spot on Saturn's Rings ARL4 Anomalous Shadows of the Planet on the Rings ARL5 Dark Spokes in the Rings of Saturn ARL6 Kinked and Inhomogeneous Rings ARL7 Dark-Sided Iapetus ARL8 Titan's Variable Brightness ARL9 Changes in Saturn's Rings Observed within Historical Times ARL10 The "Gaps" between the Rings ARL11 Ring Asymmetries and Eccentricities ARL12 Hyperion's Chaotic Rotation ARL13 Irregular Density Trend of Saturn's Moons ARL14 Fine Structure of Saturn's Rings ARL15 Varying Crater Densities on Saturn's Moons ARL16 Youthful Features of Saturn's Rings AS THE SUN ASF SOLAR-RADIATION ANOMALIES ASF1 Large Changes in Solar-Flare Activity ASF2 Periodicity of Solar Cosmic Rays ASF3 The "Missing" Solar Neutrinos ASF4 Large Variations in Isotopes Implanted by the Solar Wind ASF5 155-Day Periodicity in Solar Flares ASF6 Implication of Solar-Wind Implanted Noble Gases ASO ANOMALOUS OBSERVATIONS OF THE SUN ASO1 Transient Dark Regions on the Sun ASO2 Remarkable Coronas ASO3 Bulges on the Solar Limb ASO4 Evidence of Past Prolonged Minima in Solar Activity ASO5 Short-Term Periodicities in Sunspot Numbers ASO6 Solar Oblateness and Quadrupole Moment ASO7 Changes in the Rate of Solar Rotation ASO8 Changes in Solar Diameter ...
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