13 results found.
... Science Frontiers ONLINE No. 74: Mar-Apr 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Solar eclipse affects a pendulum -- again!The period of a Foucault pendulum located at Jassy University, Romania, was carefully monitored during the solar eclipse of February 15, 1961. The pendulum's length was 25.008 meters; its spherical bob weighed 5.5 kilograms. The eclipse commenced at 8h 49m 3s and terminated at 11h 16m 50s. Observations are recorded in the table below left: Time Period (sec) 8:49 10.028 0.004 9:13 10.028 0.004 9:43 10.024 0.004 10:00 10.019 0.004 10:12 10.020 0.004 10:24 10.024 0.004 10:58 10.028 0.004 Effects of a solar eclipse upon a paraconical pendulum. (After M.F .C . Allais). If the above effect of the eclipse on the pendulum period is not strange enough, consider what happened at 10:08, in the chart, above right. "At that moment a surprising fact occurred, the pendulum produced a perturbation by describing an ellipse whose major axis deviated in relation to the initial plane by approximately 15 . The eccentricity of the ellipse was 0.18. At the end of the eclipse the pendulum continued to maintain the elliptical oscillation, but the major axis approached increasingly to its initial plane." (Jeverdan, G ...
Terms matched: 1 - Score: 254 - 15 May 2017 - URL: /sf074/sf074a05.htm
... 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 ...
Terms matched: 1 - Score: 68 - 15 May 2017 - URL: /sf047/sf047p20.htm
... Science Frontiers ONLINE No. 74: Mar-Apr 1991 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology A GOLDEN CALENDAR FOR USE AT STONEHENGE? DID THE PHARAOHS CHEAT WITH CONCRETE? Astronomy An unexplained event Gaia on mars? SOLAR ECLIPSE AFFECTS A PENDULUM -- AGAIN! Biology Eel oddities Echidna eccentricities Searching for monster sharks WHEN IDENTICAL TWINS ARE NOT IDENTICAL Geology 'TERMITE BANDS' IN SOUTH AFRICA THE MECHANICAL PARADOX IN THRUST FAULTING Geophysics NEWTONIAN GRAVITY MAY HAVE BROKEN DOWN IN GREENLAND 50-POUND 'ICE BOMB' FALLS IN WEST VIRGINIA EARTHQUAKE LIGHTS OBSERVED IN CANADA Psychology Predictive psi Maths & Logic Pi surprise Physics Repent! the phase change is coming! Cold fusion update ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf074/index.htm
... 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 # ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf092/sf092c15.htm
... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Be happy, be healthy: the case for psychoimmunology Hints are accumulating from many clinical studies that one's mental state has much to do with the effectiveness of one's immunological system. Happy, unstressed people get fewer colds. Introverts get worse colds than extroverts. Men who have just lost their wives have lowered white-cell responses. Although many physicians and medical researchers think it too early to claim that mental stress significantly suppresses the human immunological system and thus leads to more illness, one can see the pendulum start to swing away from the timehonored belief that mind and body are entirely separate entities. The foregoing studies and others like them are discussed in a recent survey of psychoimmunology by B. Dixon. Toward the close of the article, Dixon asks why humans (and other animals, too) have evolved an immunological system sensitive to stress. Evolutionists can always find some sort of justification in Darwinian terms, and Dixon's is rather ingenious. Suppose a primitive human was attacked by a saber-toothed tiger (what else?). If the human survived, his immunological system would immediately go into high gear to clean up the wounds and repel invading germs. The trouble is that a revved-up immunological system (especially the white blood cells) can go too far and chomp up healthy tissue, too. However, evolution has constructed animals such that stress (saber-toothed tigers are stressful! ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf045/sf045p21.htm
... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects And The Machines Wept For Man Philosophers have always wondered if humans and life in general are really completely detached from the material world of non-life. Might there be unrecognized influences humans (and possibly other animals) exert knowingly or unknowingly upon inert matter? Many have been the experiments in which humans attempt to affect the swinging of a pendulum, the throws of dice, or the output of a random-number generator. The parapsychologists declare that, YES, humans can exert tiny but statistically significant influences on such devices. But other scientists and the man-in-the-street would really like to see a robust physical effect, not just a bunch of statistics. An ambitious endeavor called the Global Consciousness Project just might be able to produce a more satisfying mind-over-matter effect. This Project is conducted by a group of scientists who maintain a dispersed network of random-number generators (RNGs). A total of 38 RNG stations are presently "listening" for global perturbations in whatever medium carries the supposed human-to-matter influences. The analogy to global weather and seismological stations is appropriate here. On September 9, 2001, the Global Consciousness Project network of RNGs did indeed detect a sort of groaning in the consciousness of the planet's human cargo. The dispersed RNGs produced strings of numbers that were rather far from random, as indicated on the accompanying graph. For three days the ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf139/sf139p14.htm
... snow melt-off, the flow fluctuates but does not stop entirely." At full 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 ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf071/sf071g15.htm
... 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 ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf090/sf090g13.htm
... more about it than the Neanderthals. Though it seems powerful when you trip and fall, gravity is the weakest of the fundamental four. In a helium nucleus, the force of repulsion between two protons is 1040 times the gravitational attraction between them. Weak though it may be, gravity controls the trajectory of a baseball, the motion of the planets, and the shape of our Galaxy. Physicists describe gravitation with Newton's Law of Gravitation, which incorporates the Gravitational Constant G. Here's where the embarrassment arises. Many other constants of nature, such as the charge on the electron, are known to eight significant figures. We only know G to three. What's worse, modern attempts to refine the measurement of G come up with wildly different answers. Torsion-pendulum experiments in the U.S ., Germany, and New Zealand are far apart in their G-measurements. And physicists are perplexed -- to put it mildly. Of course, G is hard to measure. Seismic waves from ocean surf hundreds of miles away can affect the experiments. If a colleague a few offices away brings in some boxes of books for his library, the experiment is compromised. Better instrument science may eventually resolve the too-large discrepancies between the measured values of G, but some physicists worry that perhaps the problem runs deeper. "If experiments find that G is changing slowly over time, for example, physicists would have to rethink how space and time are stitched together in a single fabric. Einstein would groan in his grave." (Kestenbaum ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf116/sf116p19.htm
... example, 'Remember that Our Side is vast in space, and outside physical/temporal dimensions, and many are here!'" (Grattan-Guinness, I.; "Real Communication? Report on a SORRAT LetterWriting Experiment," Journal of Scien tific Exploration, 13:231, 1999.) Comment. We have summarized a 26-page report complete with photos, tables, etc., published in a peer-reviewed journal published by the Society for Scientific Exploration, which is composed mainly of diploma-holding scientists. Of course, mainstream science journals wouldn't touch SORRAT with a 10meter pole. SORRAT even stretches the envelope of most parapsychologists a bit far. Nevertheless, it is only a short belief-step from a human mind affecting the motion of a pendulum to the "spirit messages" in the SORRAT envelopes. Where does one draw the boundaries of acceptable science? From Science Frontiers #125, SEP-OCT 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf125/sf125p12.htm
... 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 chaotic system. From Science Frontiers #59, SEP-OCT 1988 . 1988-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf059/sf059p08.htm
... 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 ASO9 Correlation of Sunspot Numbers and Planetary Configurations ASO10 Radial Solar Oscillations ASX SOLAR ECLIPSE AND OCCULTATION PHENOMENA ASX1 Bailey's Beads ASX2 Visibility of the Moon's Limb during Solar Eclipses ASX3 Fingers of Light Projected on the Moon ASX4 Thin Pencils of Light Extending Far beyond the Corona ASX5 Exaggerated Notches in the Moon's Limb during Solar Eclipses ASX6 Pendulum Perturbations during Solar Eclipses ASX7 Spacecraft Signal Perturbations during Solar Occultations ASX7 Increases of Galactic Radio Noise during Total Solar Eclipses ASX8 Large Discrepancies between Calculated and Observed Eclipse Parameters ASZ SOLAR AND INTERPLANETARY MAGNETIC FIELD PHENOMENA ASZ1 Enhancements of the Interplanetary Magnetic Field ASZ2 Compatibility of Interplanetary Magnetic Field Measurements with an Electrically Charged Sun AT COSMOS ATB UNIVERSE DYNAMICS AND MASS DISTRIBUTION ATB1 The Existence of the Universe ATB2 The Low Mean Density of the Universe ATB3 An Angular Momentum-Mass Relationship for a Wide Range of Astronomical Objects ATB4 Evidence for Universal Rotation ATF COSMIC ANOMALIES DETECTED THROUGH RADIATION ATF1 Isotropy of Cosmic Background Radiation ATF2 Deviations of the Cosmic Back ground Radiation from the Blackbody Curve ATF3 The Existence of Cosmic Rays ATF4 The Isotropic Cosmic X-Ray Background ATF5 Ultra-High-Energy Cosmic Rays ATF6 The High Flux of Low ...
Terms matched: 1 - Score: 5 - 15 May 2017 - URL: /cat-astr.htm
... his brilliantly conceived and researched volume", Science Books. 383 pages, hardcover, $18.95, 80 illustrations, 4 indexes 1985. 988 references, LC 85-61380, ISBN 915554-19-4 , 7x10 format. The Sun and Solar System Debris: A Catalog of Astronomical Anomalies Sorry: Out of Print. No longer available. Our sun, powerhouse of the Solar System and an enigma itself, is orbited by clouds of asteroids, comets, meteors and space dust These "minor objects" cause "major headaches" to astronomers searching for explanations. Typical subjects covered: Solar svstem resonances * Bode's Law and other regularities * Blackness of comet nuclei * Cometary activity far from solar influences * Unidentified objects crossing sun * The 'missing' solar neutrinos * Pendulum phenomena during solar eclipses * Observations of Planet X * Meteorite geographical anomalies * Meteorites from the moon * Long fireball processions * Very long duration meteorites * Zodiacal light brightness changes * [Picture caption: One of the many possible modes of solar surface oscillation] Comments from reviews: "It is an unusual book, nicely executed, and I recommend it highly", Icarus. 288 pages, hardcover, $17.95, 66 illustrations,4 indexes 1986. 874 references, LC 86-60231, ISBN 915554-20-8 , 7x10 format. Stars, Galaxies, Cosmos: A Catalog of Astronomical Anomalies Sorry: Out of Print. No longer available. Did the Big Bang really begin the existence of all we know? Do we honestly know how the stars (and ...
Terms matched: 1 - Score: 5 - 10 Oct 2021 - URL: /sourcebk.htm
