237 results found.
... 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Iridium And Mass Extinctions Alvarez and his colleagues at the University of California, while chemically analyzing a series of sedimentary strata from Italy, discovered that one layer had 25 times the concentration of iridium residing in adjacent strata. The iridium-rich layer forms the boundary between the Cretaceous and Tertiary periods, 65 million years ago. During that death-filled interval, 50% of the earth's genera were wiped out. Such are the two correlated facts: iridium increase and mass extinction. But do they have the same cause? Alvarez et al point out that iridium is rare on earth but much more common out in space. The anomalous concentration of iridium could have been injected by a massive solar flare, a big meteor impact, or come other extraterrestrial catastrophe. Thus is catastrophism being resurrected. (Anonymous; "An Iridium Clue to the Dinosaur's Demise," New Scientist, 82: 798, 1979.) From Science Frontiers #8 , Fall 1979 . 1979-2000 William R. Corliss ...
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... to this hypothesis have been available for some time but apparently no one ever looked at them with continental patterns in mind. (Simon, C.; "Deep Crust Hints at Meteoric Impact," Science News, 121:69, 1982.) Comment 1: John Saul has discovered surface indications of immense ring structures in the American southwest. See ETC2 in our Catalog: Carolina Bays, Mima Mounds, which is described more fully here . Comment 2: If all our continents were initiated by meteor impacts, and if they were once clustered together in a supercontinent, as postulated by Continental Drift, then the incoming meteorites would have to have been focussed on a restricted portion of the earth's surface; that is, where the supercontinent was formed prior to continental drift. Several solar system bodies show just such preferential cratering on one hemisphere. From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R. Corliss ...
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... spokes seen in Voyager's photos of Saturn's rings wax and wane with a period of about 621 minutes. This is very close to the rotation period of Saturn's magnetic field. Somehow, the rotating magnetic field interacts with the particles making up the rings, forcing density or reflectivity changes that we see as transitory spokes. It is not yet clear how this magnetic tune is played. (Proco, C.C ., and Danielson, G.E .; "The Periodic Variation of Spokes in Saturn's Rings," Eos, 63:156, 1982.) Comment. Brightness changes have also been noted in the zodiacal light, which is light reflected from particles surrounding the sun. After reading about Saturn's variable spokes, one wonders whether solar-system magnetic fields might be the cause of these mysterious variations in the zodiacal light. From Science Frontiers #21, MAY-JUN 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 6: February 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Supermasses That Come And Go Quasars, black holes, violently active Seyfert galaxies, jets of matter expelled from galaxies, and many similar puzzles of modern astronomy fall into place (and reason) if one unthinkable assumption is made: the cyclic appearance and disappearance of supermasses inside galaxies. Normal galaxies seem to have masses of about 1011 times that of the sun. The unthinkable assumption suggests that every 108 years or so, these ordinary, unassuming galaxies become supermassive (about 1013 solar masses) for several million years. When the core of a galaxy becomes supermassive, its stars are tugged into tight new orbits. The subsequent switching off of the supermass allows the galaxy to expand outwards again. The author claims to have found just such expansion effects among the globular clusters in our own galaxy. His data are striking and quite convincing. The notorious "missing mass" problem of cosmology disappears with the cyclic supermass assumption because the time-averaged mass of each galaxy will be much higher than that observed in its normal enervated state. Doesn't this sudden temporary appearance of mass violate the laws of physics? No, says the author, physicists habitually assume a superfluid, superconducting vacuum state, which is the ultimate source of all mass-energy, when they develop their theories of fundamental particles. If particle physicists can (and must) evoke such magic, so can astronomers. (Clube, Victor; "Do We Need a Revolution in ...
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... to ancient legend, Warlow suggests that the earth has undergone many violent catastrophes, some of them within the time of man. Flood legends, geomagnetic reversals, tektites, paleoclimatology, salinity crises, and other familiar standbys of the catastrophists force P. Warlow to examine the stability of the earth in the presence of astronomical collisions and near-collisions. He shows that the earth rotates slowly and that, even with the stabilizing equatorial bulge, our planet is rather sensitive to outside forces. It is, he says, like a tippe top or magic top; a 8,000-mile-diameter top that turns over repeatedly in response to external influences. Did not the ancient Egyptians write that the sun once rose in the west? Are there not massive faunal extinctions? Have not stray solar-system bodies left scars on all the inner planets? (Warlow, P.; "Geomagnetic Reversals," Journal of Physics,11:2107, 1978.) From Science Frontiers #6 , February 1979 . 1979-2000 William R. Corliss ...
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... : June 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Post-eclipse brightening of io confirmed For about 15 minutes after Jupiter's satellite Io emerges from the planet's shadow after an eclipse, it unaccountably brightens far beyond its normal level. Observing Io with a spectrophotometer in 1978, F.C . Witteborn et al measured a brightness increase in the 4.7 -5 .4 micron range that was three to five times the brightness at other phase angles. Long a controversial phenomenon, this confirmation of Io's post-eclipse brightening has led to a search for possible explanations. Witteborn et al suggest that the transient flare-up is a complex thermoluminescent effect excited by interaction with Jupiter's magnetosphere, followed by solar heating as Io emerges from the shadow. (Witteborn, F.C . et al; "Io: An Intense Brightening near 5 Micrometers," Science, 203:643, 1979.) Comment. Io also modulates Jupiter's microwave emissions. From Science Frontiers #7 , June 1979 . 1979-2000 William R. Corliss ...
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... , but its atomic weight is so high that temperatures exceeding 6000 K would be required to shoot matter out to 250 kilometers. Gold suggests that Io's volcanos get their firepower from electrical sources. He points out that Io short-circuits Jupiter's ring current periodically. Gold estimates that 5 million amperes flow through Io when it passes through the ring current. The energetic eruptions and caldera might therefore be electric-arc phenomena. The electrical energies available are sufficient to account for the observed outbursts. (Gold, Thomas; "Electrical Origin of the Outbursts on Io," Science, 206:1071, 1979.) Comment. Several scientists and non-scientists have proposed in the past that the sunspots and even some planetary craters result from large-scale electrical arcing within the solar system. Reference. Io is anomalous in several other ways. See our Section AJX in: The Moon and the Planets. To order, visit: here . From Science Frontiers #10, Spring 1980 . 1980-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 18: Nov-Dec 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Phoebe Not Locked To Saturn When Voyager 2 passed through the Saturn system a few months ago, it snapped pictures of Phoebe, Saturn's outermost moon. Phoebe is nicely rounded, 200 kilometers in diameter, and swings around Saturn in a retrograde orbit 550 days long -- nothing anomalous so far. Phoebe, however, turns out to be the only solar-system satellite whose axial period of rotation is not about equal to its period of rotation about its parent planet. All other moons, including our own, are gravitationally "locked" so that they always point the same hemisphere at the parent planet. (Anonymous; "Voyager's Fleeting Glimpse of Phoebe," New Scientist, 91:779, 1981.) Comment. One inference here is that Phoebe is a relatively recent addition -- and a good-sized one -- to the Saturn system, and just hasn't been there long enough to become "locked." From Science Frontiers #18, NOV-DEC 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 19: Jan-Feb 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Rims Of Galaxies Spin Too Fast According to the physical laws governing orbital motion in a central force field, like that of our sun, distant objects should rotate more slowly than those closer to the central mass. Thus, the outer planets of the solar system swing around the sun more slowly than the earth and the other inner planets. Astronomers always expected that the stars rotating around the massive hubs of the galaxies would obey these laws in a like manner. No such luck! Doppler measurements of galaxy rotations made by Vera C. Rubin and her colleagues, at the Carnegie Institution, indicate that most stars out near the galactic rims rotate just as fast or faster than those closer to the hub. Astronomers suppose that this anomalous rotation may be due to halos of undetected burntout stars and/or gas fringing the galaxies. Such halos would dis-tort the inverse-square-law field, permitting the observed anomalous rotation. (Anonymous; "Fast-Spinning Galaxies," Science Digest, 89:18, November 1981.) Comment. No one has yet discovered these hypothetical halos of mass. The universe seems to be full of "missing mass." An unpopular alternative would be the admission that Newton's Law of Gravitation does not hold on the galactic scale. From Science Frontiers #19, JAN-FEB 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 19: Jan-Feb 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fatal flaw in pole-flipping theory V. Slabinski of the Communications Satellite Corporation claims that there are three separate errors in P. Warlow's theoretical analysis of terrestrial pole-flipping due to the gravitational torques created by a passing celestial body. With these errors corrected, the earth is 200 times less sensitive to pole-flipping. Slabinski does not believe that any known solar system object could turn the earth end-for-end if it passed by. This item proclaims that the discovery of Warlow's errors is a serious blow to Velikovskian catastrophism. (Anonymous; "Fatal Flaw in Pole-Flipping Theory," New Scientist, 92:433, 1981.) Comment. We shall now wait for a rebuttal by Warlow and/or the Velikovskians. The flipping torques depend, of course, upon the mass and distance of the perturbing body. Whatever the outcome, the reality of astronomical and terrestrial catastrophism depends upon terrestrial geology, the testimony of history and myth, and other sources. Update. Over a decade has passed and no rebuttal by Warlow has been seen. We must, therefore, consider his hypothesis highly questionable. From Science Frontiers #19, JAN-FEB 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 2: January 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Changes In Solar Rotation John A. Eddy has continued his historical studies of sunspots from the earliest records to date. Analysis of sunspot drawings suggest that, between 1625 and 1645, the equatorial velocity of the sun was significantly higher than it was earlier and is now. Eddy believes that this acceleration presaged the onset of the peculiar Maunder Minimum, 1645-1715, when the sun was virtually clear of spots. (Eddy, John, et al; "Anomalous Solar Rotation in the Early 17th Century," 198:824, 1977.) From Science Frontiers #2 , January 1978 . 1978-2000 William R. Corliss ...
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... Sourcebook Project Sourcebook Subjects Sun-earth-moon system may not be stable The application of zero-velocity surfaces (a mathematical technique) to the sunearth-moon, three-body system indicates that the eccentricity of the earth's orbit renders the system unstable. The conclusion is that the moon may one day escape the earth and become a planet and, turning the situation around, that the origin of the moon by capture is a strong possibility. (Szebehely, V., and McKenzie, R.; "Stability of the Sun-Earth-Moon System," Astronomical Journal, 82:303, 1977.) Comment. This paper is typical of several recent ones in celestial mechanics that throw doubt on long-held dogmas about the long-term stability of the solar system. For more on this subject, consult ABB1 in our Catalog: The Sun and Solar System Debris. To order this book, visit: here . From Science Frontiers #2 , January 1978 . 1978-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 3: April 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Extraterrestrial Influences On Chemical And Biological Systems Conventional science shows little interest in the subject indicated by the title, except for some work that is done on circadian rhythms. However, readers of the journals Cycles and the Journal of Interdisciplinary Cycle Research are treated regularly to a wide variety of purported correlations of biological systems with solar and other extraterres-trial influences. The present paper suggests that extraterrestrial forces influence the earth's weather which, in turn controls physiological processes. The physiological processes studied include blood precipitation rate and blood hemoglobin values. Also mentioned are Piccardi's precipitation-rate experiments that seem to show a highly variable behavior of simple chemical systems that bear no obvious relationship to weather conditions. Tromp concludes from these data that unknown forces, probably extraterrestrial in nature, act upon the earth and its inhabitants. (Tromp, Solco W.; "Study of Possibly Extraterrestrial Influences on Colloidal Systems and Living Processes on Earth," Cycles, 28:34, 1977.) From Science Frontiers #3 , April 1978 . 1978-2000 William R. Corliss ...
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... under control. But the discharge paths followed by lightning strokes often seem unnecessarily tortuous when more direct routes are readily available. The mechanism by which large reservoirs of unlike charges are built up is also obscure. Cosmic rays have now been pro-posed as both a source of charged particles and a provider of low-resistance ionized conduits for lightning to follow. Primary cosmic rays carry considerable energy, most of which appears near the earth's surface in the form of cascades of secondary particles that create complex ionized tracks as they penetrate the dense lower atmosphere. Lightning bolts would tend to follow these precursors along their crooked trails. (Anonymous; "Do Cosmic Rays Trigger Lightning Discharges?" New Scientist, 77:88, 1978.) Comment. Thunderstorm frequency has often been linked to solar activity, and cosmic rays could provide the connection. Could meteorites or "thunderbolts" do likewise? From Science Frontiers #3 , April 1978 . 1978-2000 William R. Corliss ...
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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 MODERN TECHNOLOGY GETS SUNBURNED During the 400-or-so years we have been counting sunspots and taking other measures of solar activity, the sun has, on the average, been getting more and more rambunctious. The sunspot peaks have been ascending to greater heights every 11-or-so years. Right now, near the peak of the present cycle, the earth is being bombarded by extra-high fluxes of X-rays, ultraviolet light, and other energetic radiation. A century ago, no one would have noticed or cared, but today our technological infrastructure is suffering. K.H . Schatten has listed some of the "sunburn symptoms" in a recent article in Nature. Fade-outs of over-the-horizon radio communications Greater aerodynamic drag on satel lites and earlier reentry Glitches and outright damage in satellite electrical systems Anomalous induced voltages in elec trical power systems and long-line communications Blackouts of high-frequency polar communications oInduced errors in VLF (Very Low Frequency navigation systems Occasional radiation levels that are hazardous to humans in high-flying aircraft. (Schatten, Kenneth H.; "The Sun's Disturbing Behavior," Nature, 345:578, 1990.) Comment. It would be interesting to learn whether the "computer errors" we encounter so frequently follow the sunspot cycle. One phenomenon, at least, seems anticorrelated with solar activity: The number of solar neutrinos measured here ...
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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 ASTRONOMERS COPE WITH BOTH CHAOS AND TOO MUCH ORDER IN THE UNIVERSE The solar system . The recent advent and fast rise in popularity of chaos theory is destroying some favorite, long-sworn-to notions of astronomers. One in particular is solar-system stability. Could any of the planets pop out of their orbits and embark upon wild and unpredictable trajectories? "We can't rule it out," stated J. Wisdom, an MIT planetary scientist. (Freedman, David H.; "Gravity's Revenge," Discover, 11:54, May 1990.) Comment. Well, OK, there is a tiny theoretical chance that such an event might occur in the future, but it certainly never happened in the past. To admit such a possibility would open that Pandora's Box of vigorously suppressed catastrophic scenarios. Reference. More information on solarsystem instability may be found in ABB1 in the catalog: The Sun and Solar System Debris. Ordering details here . The universe as-a -whole . The disovery of the Great Wall of galaxies (SF#67) and the regular clumping of galactic matter (SF#69) has greatly surprised astronomers, who have been emphasizing how uniformly distributed galactic matter should -- according to theory, at least. Now, D.C . Koo, at the University of California at Santa Cruz, says, "The regularity is just mind- ...
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... Science Frontiers ONLINE No. 137, Sep-Oct 2001 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Alaska's "Mummy People", Where they Ainus? Granite-Working in Ancient Egypt Astronomy The Ashen Light of Venus Martian "Flares" Solar Model Confirmed, But Standard Model Crippled Biology Bird's Eggs as Information Carriers Unexpected Signals Within Life Forms Mysterious Losses and Acquisitions of Color Vision Geology Fuzz in the Climate Record The Missing Helium Geophysics The Long Reach of the Hawaiian Islands The Ship-Swallowers An Expanding Semicircle of Light in the Night Sky Psychology Phantom Bodies Sex and TGA Unclassified Something Rotten at the Core of Science Luck or Fate? ...
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... Science Frontiers ONLINE No. 112: Jul-Aug 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Signals From the Sun And, Eventually (? ), Other Entities It is rather amazing that we can detect neutrinos at all. Carrying no electric charge and possibly massless, most zip right through the entire earth as if it were not there. A very, very few, however, are captured in huge, fluidfilled tanks built by physicists. These trapped ghostly particles tell tales we do not yet fathom. We have mentioned the solar-neutrino problem before (SF#46/84, for example). It is one of science's more perplexing and enduring mysteries. Even the most modern, sophisticated neutrino detectors count only about one-third the number of neutrinos that the sun "should" be sending in our direction -- according to our best theories on the nuclear reactions simmering away in the solar core. To this classical neutrino problem has been added the discovery that the solar neutrino flux varies in ways difficult to explain. P. Sturrock and G. Walther, at Stanford University, scrutinized 20 years of data from a detector deep in the Homestead Mine in South Dakota and find that the neutrino flux seems to peak every 21.3 days, varying as much as 30% to 100%. It may be that the sun's fusion "engine," long thought to run steadily and smoothly, sputters in a cyclic fashion? If an automobile engine did this, we would take it ...
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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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... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A VANISHED PLANET?Almost every week, it seems, a new Texas-sized object is discovered in the outer solar system. In the inner solar system, however, some astronomers are finding "holes" where planets seem to have been ejected by unknown forces. D. Christodoulou, Louisiana State University, found one such "hole" serendipitously. He was studying how the sun and the planets might have condensed from the (hypothesized) cloud of primordial gas and dust. Factoring in gravity, rotation, and magnetic fields, he found the cloud condensing in concentric rings at just the right locations for protoMercury, proto-Venus, and proto-earth. The fourth ring, however, did not correspond to any existing planet, and the position of proto-Mars was off the mark. But the asteroids and outer planets fell rather neatly into place. The implication of these calculations is that some turmoil in the early inner solar system cast out one planet and dislocated Mars. (Hecht, Jeff; "Did Extra Planet Vanish into Outer Space?" New Scientist, p. 18, June 14, 1997.) Comment. These are sour notes in the "music of the spheres," but don't be overly concerned; these are just calculations based upon many assumptions. Calculated positions of rings of condensed dust and gas compared to actual planet locations. From Science Frontiers #113, SEP-OCT ...
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... Science Frontiers ONLINE No. 108: Nov-Dec 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sunspots And Planetary Alignments Many scientists and laymen have noticed that the sunspot cycle and Jupiter's period are both about 11 years. This must be a coincidence, because the tidal forces exerted on the sun by distant Jupiter seem far too weak to disturb the sun's internal operations. (See details in ASO9 in The Sun and Solar System Debris.) Could it be that we are missing something, for there is some evidence that some planetary alignments also exert influence on the number of spots seen on the sun's face? In particular, the Uranus-Neptuneearth conjunction has been investigated by B. Payne, who wrote the following in Cycles: "Sunspots increase when two or more planets line up, an effect I have observed for more than a decade. During the last six years, Uranus and Neptune have been within a few degrees of each other. Their conjunction, which occurs every 137 years, is an ideal situation to validate the hypothesis that sunspot numbers are associated with planetary positions." Payne's lengthy analysis is omitted, but the essence of his study can be seen in the accompanying graph. He concludes: "The results clearly show that sunspot numbers increase markedly during Uranus-Neptune-Earth-sun alignments." (Payne, Buryl; "Sunspot Number Changes during Planetary Alignments," Cycles, 45:146, 1995) Comment. It will take a lot more than ...
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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 The Force Is With Them The communication loop between earthbased ground stations and interplanetary spacecraft allows extremely accurate measurements of the radial velocities of these distant man-made machines. As these spacecraft hurtle toward the fringe of the solar system, the visible sun dwindles to a small, bright point, and its gravitational field falls off as the inverse square of the distance. At least that is what is supposed to happen. Four far-flung spacecraft, (Pioneer 10, Pioneer 11, Ulysses, and Galileo are experiencing a mysterious decelerating force not encompassed by the Law of Gravitation. It's a tiny force, but it seems to be real. Making it even more puzzling is the fact that it is decreasing according to the inverse of distance from the sun rather than the inverse square. Is it a non-solar force? Is it "new" physics? Or maybe just an artifact of the spacecraft and ground-based equipment? The fact that four spacecraft feel its tugging suggests the force is real. But the motions of the distant planets do not seem to be affected by it. So, everyone is perplexed. (Schilling, Govert; "Spacecraft Motions Puzzle Astronomers," Science, 281:1581, 1998. Seife, Charles; "If the Force Is with Them...," New Scientist, p. 4, September 12, 1998. Browne, Malcolm; "After Study, ...
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... the abundant evidence for the existence of large quantities of primordial hydrocarbons deep within the earth and (probably) many other planets throughout the universe. Associated with these hydrocarbons is a "deep, hot, biosphere." By "deep" Gold means 100 kilometers and more. It is this combination of a deep reservoir of hydrocarbons and life forms (probably mostly bacteria) that can account for (among other things): The fact that all helium comes from oil and gas wells The fact that the composition of petroleum is not what one would expect from the decomposition of plants and animals. It is really a mixture of primordial hydrocarbons with some added biochemical by-products; that is, products of that "deep" biosphere. Since carbonaceous material is now known to be common in the solar system (comets, carbonaceous chondrites, etc.), it is likely that many other planets also possess deep stores of hydrocarbons. In these deep, warm, protected, energyrich "wombs," complex biospheres might readily evolve. In Gold's view, deep biospheres may be the rule and surface life the exception! Finally, Gold sees life as merely a natural process with no more meaning and purpose than accelerating the breaking of chemical bonds and thereby increasing entropy! "It has been said that nature abhors a vacuum, but nature doesn't care much for free energy either. All of biology is just a device for degrading energy from chemical sources, and on the surface from the great temperature differential between the hot sun and the cold of space. Perhaps biology is ...
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... . 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "NOT WITH A BANG BUT A WHIMPER"Poet T.S . Eliot speculated that life on earth might not after all be terminated catastrophically, as in the impact of a large asteroid (today's popular doomsday machine). Rather, we might depart slowly, quietly, and mournfully. Of course, Eliot was not thinking of asteroids -- no one foresaw impact havoc in his day. But, his use of the word "whimper" can be attached to another, much slower astronomical agent of planetary death: cosmic dust and gas. Here's the current situation: "For the most part of the past five million years, the Solar System has been moving through a rather empty region of interstellar space between the spiral arms of the Milky Way. But a few thousand years ago, it entered a diffuse shell of material expanding outward from an active star-forming region called the Scorpius-Centaurus Association. Such 'super-bubble' shells of gas and dust result from the formation of massive stars, or the explosion of those stars as they become supernovas, and contain gas and dust clouds of varying densities." The density of matter in this solarsystem-engulfing shell could well shroud our planetary system with dust and gas a million times more dense than that we now encounter. If this happens, the sun's rays would slowly dim and life forms dependent on photosynthesis would expire. P. Frisk, a ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An exploded planet and the "face on mars"Between Mars and Jupiter swirls the main main asteroid belt. In the view of many astronomers, including T. Van Flandern, there resides the debris of an exploded planet. Van Flandern has adduced considerable evidence supporting the exploded planet hypothesis, which we will pass over in favor of a look at the possible effects of said exploding planet upon a large but equally hypothetical satellite of said planet. Such a satellite would have been heavily pelted by debris on the side facing the exploding planet. Furthermore, this battered sphere, having lost its gravitational "anchor," would assume a new orbit around the sun as well as a new orientation in space. Is there any object in the solar system plastered mainly on one side with debris and craters? You guessed it: Mars! What possible connection could there be between this purported cataclysm and the "face on Mars"? The connecting thread is very weak but so beguiling that we must mention it. T. Van Flandern has proposed eight tests for the artificiality of the "face" and its associated "pyramids," "city," etc. One is the three-dimensionality of the "face." Another is the "fractal" test, which is useful in distinguishing between artificiality and naturalness. The "face" readily passes four of the eight tests. A fifth test (bilateral symmetry) cannot be decided until we get more pictures. But failure looms on the last three tests (location, orientation ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunguska Afterglow June 30, July 1-3 , 1908. England. We quote from a London cable to the New York Times. "Several nights through the week were marked by strange atmospheric effects which Dr. Norman Lockyer of the South Kensington Solar Physics Laboratory believes to be a display of the aurora borealis, though personally I have not observed any colored streamers. "Following sunsets of exceptional beauty and twilight effects remarkable even in England, the northern sky at midnight became light blue, as if the dawn were breaking, and the clouds were touched with pink, in so marked a fashion that police headquarters was rung up by several people, who believed a big fire was raging in the north of London." (Anonymous; "Like Dawn at Midnight," New York Times, July 5, 1908. Cr. M. Piechota) Comment. Actually, all of northern Europe saw a succession of very bright nights beginning June 30, 1908. It was even possible to take photographs at midnight. The cause was not the aurora borealis but rather the Tunguska Event (Siberian Meteor) of June 30, 1908. Of course, Western Europe did not know what had happened in Siberia for years. Terrestrial dust from the Tunguska Event that was blasted into the upper atmosphere or perhaps particulate matter accompanying the impacting object (probably a comet) was apparently the cause of the nightime airglow. From Science Frontiers #121 ...
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... T. Van Flandern advanced the theory that the rugged southern highlands are composed of the debris from an exploded planet which Mars once attended as a satellite. Be that as it may, there is something puzzling about the northern plains. We now have information from the Mars Global Surveyor (MGS), now orbitting the red planet, that the low-lying northern plains are much flatter than thought. For thousands of kilometers, they are smooth on a scale of hundreds of meters. This is flatter than the lava flows of the lunar maria; flatter than the smoothest central Sahara. These startling data come from the MGS's laser altimeter that can measure elevation of the terrain below it with 10meter accuracy averaged over the beam width of 150 meters. The only known terrain in the entire solar system that can match this flatness is the abyssal, sediment-filled floor of the South Atlantic. Hmmm! Does this imply that the northern plains of Mars were once an ocean floor? That's the favorite interpretation today. Of course, they might also be lava plains created by a colossal ancient impact, made smoother by blown dust. (Kerr, Richard A.; "Surveyor Shows the Flat Face of Mars," Science, 279:1634, 1998.) From Science Frontiers #117, MAY-JUN 1998 . 1998-2000 William R. Corliss ...
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... and even odors help guide them across the continents and open seas. But birds are considered highly evolved animals so their sophisticated navigational techniques are not especially surprising. Monarch butterflies, however, are mere insects, with tiny brains (navigation-data processors) and not much in the way of the environment sensors and internal clocks required for long-distance migration. Yet, some of these colorful insects manage to flutter up to 4,000 kilometers from the eastern U.S . and Canada to their wintering grounds in Mexico. How do they do this? S.M . Perez et al have now shown that monarch butterflies are equipped with a sun compass; that is, they chart their courses by noting the sun's changing azimuth. This feat requires not only the measurement of solar azimuth but also reference to an internal clock. Humans cannot do this without artificial instruments. Furthermore, even on cloudy days, migrating monarchs fly in the proper direction (generally south-southwest). Apparently, they also have evolved a backup navigation system, perhaps a geomagnetic compass. (Perez, Sandra M., et al' "A Sun Compass in Monarch Butterflies," Nature, 387:29, 1997.) Comment. Somewhere in the tiny bodies of the monarchs are packed sun-azimuth sensors, internal clocks, magnetic-field sensors, and a nervous system that converts the incoming data into signals to the wings. Their genomes must also include map information to pass on to their progeny. From Science Frontiers #116, MAR-APR 1998 . 1998- ...
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... The universe on the average is evenly split between left- and right-handed molecules, but there are "islands" or "pockets" which are left- or right-handed. Earth life is one of these "islands." Given the chance, amino acids and other organic molecules would exist evenly split, but physical phenomena, such as circularly polarized light, tip the scales -- to the left, in the case of terrestrial life. But that would mean that some physical phenomena are not symmetrical! (Engel, M.H ., and Macko, S.A .; "Isotopic Evidence for Extraterrestrial Nonracemic Amino Acids in the Murchison Meteorite," Nature, 389:265, 1997. Also: Chyba, Christopher F.; "A Left-Handed Solar System," Nature, 389:234, 1997.) Comment. The references above state that terrestrial life is almost exclusively left-handed. Are there really righthanded organic molecules in terrestrial life forms? Where? Left- and right-handed versions of the amino acid alanine. From Science Frontiers #115, JAN-FEB 1998 . 1998-2000 William R. Corliss ...
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... a layer of warm air are important. But even when conditions seem perfect, the green flash does not always appear, and all one sees is the red tip of the sun sinking out of sight. Even if the patient observer is rewarded by a green flash, he may really have been deceived, for there are "false" green flashes. A. Young, San Diego State University, reported at a recent meeting of the American Astronomical Society on a peculiar type of optical illusion that can afflict observers of the setting sun. It seems that the intense red light of the sun near the horizon can bleach the red-sensitive receptors in the retina so that an intent observer becomes temporarily color blind to red. When this happens, the observer sees the yellow part of the dispersed solar spectrum as being green (yellow minus red = green). The true green flash may never have appeared at all. (Seife, Charles; "Don't Let Your Eyes Deceive You," New Scientist, p. 5, June 5, 1998.) Comments. You are right! Blue lies beyond green in the spectrum. Much rarer than green flashes are blue flashes. Jules Verne even wrote a novel involving this famous phenomenon: Le Rayon Vert . Reversing the sequence, red flashes are sometimes observed as the bottom edge of the sun dips below a sharply-defined cloud deck. (From: Rare Halos...) From Science Frontiers #119, SEP-OCT 1998 . 1998-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Broadside Against Small Icy Comets In a late-1997 issue, Geophysical Research Letters published a group of five papers that detailed five different lines of evidence that are inconsistent with the claim by L.A . Frank and J.B . Sigwarth that the earth is bombarded daily by 30,000 house-size icy comets. If such bombardment has really been occurring, scientists would have to rethink the origins of the earth's oceans, terrestrial life, and the formation of the solar system. No wonder the icy-comet hypothesis is strongly challenged! Three of the more interesting points made by this group of papers are as follows: Our moon could not escape the icy-comet bombardment. Roughly 1,000 craters 50 meters in diameter and splashes of debris 150 meters in diameter must occur each. There is no evidence that the moon is thus afflicted. Comets also carry the noble gases argon, krypton, and xenon. These gases should accumulate in the atmosphere as the comets disintegrate. The amounts of these gases actually measured are 10,000 times less than those the postulated bombardment would produce. The icy comets should break up near the earth and produce clouds of ice crystals. Sunlight reflected from such 30-ton clouds would be brighter than Venus and easily visible before they disperse. Such objects are rarely seen, implying that small icy comets do not exist in the numbers claimed. Preceding this series of five ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Yagi Watches A Solar Eclipse During the partial solar eclipse of July 11, 1991, D. Emerson had his Yagi antenna pointed in the direction of the phenomenon. His receiver was tuned to 145.8 MHz. The sun is always emitting radio noise, and one would expect that the moon passing in front of the sun would gradually cut off most, but not all, of the radio noise picked up by the antenna and, after the eclipse's midpoint, the noise would increase back to normal levels. Instead of the expected: Radio noise power measured during a partial solar eclipse. The arrows indicate the stages of the eclipse "There was no radio evidence of any effect of the solar eclipse until 1822 UTC, 58 minutes after the start of the eclipse. At that point, all detectable solar emission disappeared within the space of about nine minutes. The emission did not start to reappear until 72 minutes later, at 1943 UTC, and was fully restored by 1951 UTC, 13 minutes before the end of the eclipse, which occurred at 2004 UTC. "The fact that radio emission disappeared and reappeared fairly abruptly part way through the eclipse indicates that most of the radio emission was occurring from one discrete point on the sun's surface rather than from the entire solar disc." (Emerson, Darrel; "Radio Observations of Two Solar Eclipses," QST , p. 21, February 1995 ...
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... Science Frontiers ONLINE No. 97: Jan-Feb 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Solar-system puzzles In the 30-or-so years that space probes have been visiting the solar system's other planets, much has been learned, but there are now more questions than ever. We now pose four of these -- none of them could even have been asked before the space program. Not only is the magnetic axis of Uranus tilted grotesquely away from the planet's axis of rotation, but the latter lies almost in Uranus' orbital plane. Q1. Why are the magnetic fields of Neptune and Uranus tilted at such grotesque angles with the axes of rotation? A1. Probably because of giant impacts. Q2. "Why does Mercury have an iron core twice as massive, relative to its size, as any other rocky planet?" A2. Probably because a giant impact tore off its rocky mantle. Q3. "How can Neptune sustain 1400-kilometer-per-hour winds -- faster than Jupiter's -- when it is so far from the sun, whose heat powers atmospheric circulation?" A3. ?? Q4. "How could Mars -- now more than 50 C below freezing -- have been warm enough in its early days to have water flowing on its surface?" A4. Possibly due to geothermal heat. (Kerr, Richard A.; "The Solar System's New Diversity," Science, 265:1360, 1994 ...
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... Science Frontiers ONLINE No. 94: Jul-Aug 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An offset solar halo of 28 Anomalists should not perfunctorily dismiss unusual halo phenomena as trivial and/or boring. The laws of atmospheric optics have no room for the phenomenon described below. It is just as anomalous as ball lightning, although perhaps not as exciting! The 22 halo on the left is common and nonanomalous. However, optical theory has no room for the offset 28 halo on the right. June 22, 1993. North Cornwall, UK. "A 22 halo [the well-explained type] was very prominent, with the sector DCE being exceptionally bright and the colours quite strong. On the right-hand side of this, a larger but fainter halo could easily be seen, having a diameter of about 28 (see figure). It was white in colour. The sector CB was the brightest, sector BF not so bright but easily seen, but the sector AF could be seen only with difficulty. The halo was not seen to penetrate the 22 halo at either points A and C and so it could not be stated positively that the halo would have passed through the Sun, although it looked as though this would have been the case. The centre of the 28 halo had an altitude approximately the same as that of the Sun. The phenomenon lasted for about 20 minutes, although the 22 halo lasted for at least another hour." (Miles, Howard; "An Unusual Solar ...
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... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Solar Wind And Hallucinations "Data from the 19th century on hallucinations and magnetic disturbances were found to exhibit a direct and statistically significant correlation. The aa magnetic index over the period 1868-89 and concurrent visual hallucinatory activity were found to covary...Magnetic influences on the pineal hormone, melatonin, are suggested as a possible source of variation." Annual variation of hallucination frequency versus geomagnetic activity W. and S. Randall, the authors of the foregoing abstract, are in the Department of Psychology at the University of Iowa, Iowa City. An obvious question: Where could they have found reliable data on hallucinatory events between 1868 and 1889? Answer: Phantasms of the Living , by those old stalwarts of psychical research: E. Gurney, F. Myers, and E. Podmore, as reprinted by University Books in 1962. "Within these pages, every visual hallucination with the month of occurrence was used in the correlational analysis (a total of 49)...All the visual hallucinations were of human or "humanoid" forms, typically recognized as a dead or dying friend or relative." (Randall, Walter, and Randall, Steffani; "The Solar Wind and Hallucinations -- A Possible Relation Due to Magnetic Disturbances," Bioelectromagnetics , 12: 67, 1991. Cr. S. Jones) Comment. Bioelectromagnetics is one of the thousands of journals we have not explored. Someone else ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The earth has recently been swallowed by a cloud of inter-stellar gas Using cosmic-ray data and stellar spectra gathered by seven satellites, P.C . Frisch, at the University of Chicago, has constructed a cosmic scenario that reminds us of F. Hoyle's science fiction tale, The Black Cloud . According to Frisch, until just a few thousand years ago, the solar system was cruising through interstellar space that was almost devoid of matter. Then, perhaps within historical times, 2,000-8 ,000 years ago, the solar system plunged into an interstellar gas cloud. This cloud is believed to be the remnant of the bubble of matter shot into space perhaps 250,000 years ago by a supernova in the Scorpius-Centaurus region. This tenuous cloud of gas feeds matter into the solar system, some of which interacts with the solar wind and, therefore, affects the geomagnetic field, too. Climate changes may have been caused by entry into this cloud, and very likely the flux of cosmic rays impinging on the earth would have been modulated. (Frisch, Priscella C.; "Morphology and Ionization of the Interstellar Cloud Surrounding the Solar System," Science, 265:1423, 1994. Also: Peterson, I.; "Finding a Place for the Sun in a Cloud," Science News, 146:148, 1994.) Comment. Note that the 2 ...
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... : ". .. threaten the universe with an irreversible loss of information, which seems to contradict other laws of physics." (Ref. 2) Adding to these problems are nagging doubts about General Relativity, which underpins black-hole theory. Recently, some theorists have shown that General Relativity requires that two bodies of approximately equal size not attract one another! (Ref. 2) Despite all these qualms, black holes have become a fixture of astronomy because they promise to explain the incredibly powerful energy sources seen in the cores of galaxies. Do astronomers really observe black holes? The answer is: MAYBE. And even if YES, there are not nearly enough of them to satisfy theory. To illustrate, according to present theory, when stars weighing in at less than three solar masses collapse, they become neutron stars; if larger, the stars turn into small black holes. Theoretically, there should be one small black hole for every three neutron stars. But with some 500 neutron stars already pin-pointed, only 3 "possible" small black holes have been given votes of confidence; namely, Cyg X-1 , LMC X-3 , and AD 620-00. All objects previously proclaimed to be small black holes have instead turned out to be neutron stars. (Ref. 1) The case for massive black holes weighing in at millions of solar masses is not overwhelming either. These are supposed to lurk in the centers of galaxies. To find them, astronomers look for intensely bright spots in galaxies, around which swirl stars at speeds ...
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... Science Frontiers ONLINE No. 93: May-Jun 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Anomalous Horizon Glows Seen On The Moon The spacecraft Clementine , now engaged in surveying the moon from orbit, has apparently recorded once again a perplexing sky glow that precedes lunar sunrises and follows lunar sunsets. An astronaut standing on the moon watching the spot where the sun is about to rise would see first of all two well-recognized phenomena: the solar corona (even though the solar disc is still well below the horizon) and the zodiacal light (sunlight reflected from interplanetary dust). In addition, the astronaut would detect a glow along the horizon itself, as in the illustration. Since the moon is virtually airless, there should be none of those gas molecules and suspended dust particles that cause the sunsets and sunrises that we admire so much here on earth. Still, there must be something suspended above the moon's surface to scatter light from the sun still located just below the horizon. The best guess is that lunar dust particles are ionized by solar radiation and are repelled upwards from the surface and hang there suspended by electrostatic forces. But no one really knows for certain the cause of the glow. (Cowen, R.; "On the Horizon: Clementine Probes Moon Glow," Science News, 145:197, 1994.) Reference. Anomalous lunar horizon glows are cataloged in ALO11 in our catalog: The Moon and the Planets. For details, visit here . From Science Frontiers #93 ...
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... Science Frontiers ONLINE No. 96: Nov-Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects On the sun, south is almost everywhere Astronomers have been shocked by the discovery that the sun has no south pole! "Instruments on board the probe Ulysses have been measuring the radial component of the solar magnetic field. The field lines were expected to become more bunched and intense as the probe approached the south pole. 'Instead, the strength of the magnetic field remained absolutely constant,' says Richard Marsden, a project scientist on Ulysses." (Anonymous; "No Solar Pole," New Scientist, p. 11, September 24, 1994.) From Science Frontiers #96, NOV-DEC 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ballistic Panspermia Scientists are already convinced that cratering events on the moon and Mars have propelled rocky debris in the direction of the earth, and that some of these fragments have landed here in the guise of meteorites. A logical question is: Can life forms and/or chemical precursors of life be transported thus across the far reaches of the solar system? Can one planet infect another ballistically? An analysis by M.K . Wallis and N.C . Wickramasinghe is rather warm towards this idea: "The mass of escaping ejecta from the presumed 10-km comet that caused the 180-km Chicxulub crater, with a radius of roughly 10 km and 1 m deep, amounted to ~300 Mm3 , of which one third may have been rock and 10% higher-speed ejecta that could have transited directly to Mars. It may have taken 10 Ma to impact Mars but...the probability is not exceedingly low but 0.1 -1 %. "The survival and replication of microorganisms once they are released at destination would depend on the local conditions that prevail. Although viability on the present-day Martian surface is problematical, Earth-to-Mars transfers of life were feasible during an earlier 'wet' phase of the planet, prior to 3.5 Ga ago. The Martian atmosphere was also denser at that epoch, with several bars of CO2 , thus serving to decelerate meteorites, as ...
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... . They have created volcanoes and massive basalt flows. They have caused mass extinctions. Of course, for two centuries, other catastrophists have proposed similar dire consequences of giant impacts. But Shaw does introduce three ideas that are worth recording here. Large impact craters occur in swaths. Although this has been suggested before, Shaw has mapped out several swaths where large craters of about the same age are located. His "K -T swath" includes the Chicxulub crater (Yucatan), the Manson crater (Iowa), the Avak crater (Alaska), and three more in Russia -- all of which were gouged out about the time of the Cretaceous-Tertiary (K -T ) boundary. Shaw has plotted several other swaths of different ages. The application of chaos theory to solar system debris. Shaw hypothesizes that nonlinear gravitational effects channel asteroids and comets into the inner solar system in intermittent bursts. The bursts are then captured by the earth and other inner planets, with some of these objects grouped in like orbits. Gravitational feedback occurs from earth to orbiting debris. Shaw believes that the uneven distribution of mass inside the earth -- due probably to the impact that created the moon -- influences where asteroids and comets impact. In turn, these large objects keep smashing into the same regions and their cumulative effect contols the flow of material inside the earth. Then, this change in mass distribution feeds back to change orbits and impact swaths. The above is just a taste of what is revealed in Shaw's book of 600+ pages. It cannot fail ...
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... Science Frontiers ONLINE No. 96: Nov-Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Psi Phenomena And Geomagnetism The item on solar wind and hallucinations in SF#95 brought varied responses. It seems that several psi phenomena have been correlated with geomagnetic activity or the lack of it. For example, A. Gauld sent a copy of a long paper that he and H.P . Wilkinson wrote entitled: "Geomagnetism and Anomalous Experiences." We have room for only a short section of their abstract: " .. .in the end we were left with a residuum of positive findings: (a ) There is a weak but persistent statistical relationship between lowish absolute levels of geomagnetic activity and the occurrence of spontaneous cases of apparent telepathy/clairvoyance. (b ) There is a small tendency for the days on onset of cases of poltergeists and hauntings to be days of higher-than-usual geomagnetic activity. What underlies these observed relationships remains to be determined." Gauld noted in his letter of transmittal that the conclusions of Wilkinson and himself were at variance with the item in SF#95. (Wilkinson, H.P ., and Gauld, Alan; "Geomagnetism and Anomalous Experiences, 1868-1980," Society for Psychical Research, Proceedings, 57:275, 1993.) Another pertinent paper was presented at the 1994 meeting of the Society for Scientific Exploration in Austin. Employing data collected at the Maimonides Dream Laboratory from a subject with apparently telepathic dreams, S. Krippner and M ...
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... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Blondes in ancient china Evidence of tobacco in ancient egypt Dwarf mammoths in ancient egypt? Astronomy "AN UNPRECEDENTED AND BIZARRE OBJECT" Comets, asteroids, or neither? This was the big one, but where did it come from? Snowballs in hell? Biology It's according to hoyle and wickramasinghe Music of the hemispheres The urge to replicate: part i The urge to replicate: part ii Geology Might diamonds be dead bacteria? Deep quake deepens mystery Geophysics Sylvanshine: a newly recognized optical phenomenon Gamma-ray flashes in the upper atmosphere A DEEP-SEA HYDROTHERMAL VENT INSTEAD OF A WARM LITTLE POND? Psychology The solar wind and hallucinations Physics Cold fusion update: 1994 Miscellaneous A SKEPTIC'S NDE -- NOT SO MYSTICAL ...
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... Sourcebook Subjects It's according to hoyle and wickramasinghe The June 17, 1994 issue of Science did not ignore it. In fact, this conservative journal devoted almost an entire page to a paper presented by Yi-Jehng Kuan and Yanti Miao at the recent Minneapolis meeting of the American Astronomical Society. Students of L. Snyder, at the University of Illinois, Kuan and Miao reported that the amino acid glycine had been detected in a molecular cloud named Sagittarius B2. Glycine has only ten atoms and is the smallest of the 20 amino acids vital to life-as-we-know-it. The Science article supposed that this discovery of extraterrestrial glycine might reignite speculation that earth life might not be unique after all. (Travis, John; "Hints of First Amino Acid outside Solar System," Science, 264:1669, 1994.) Structure of the amino acid glycine What Science did not mention but New Scientist did is that F. Hoyle and C. Wickramasinghe have long predicted that the molecules of life, as well as life itself, would be found in outer space. Now, after much ridicule, they are being vindicated. "It's been a long hard struggle," said Hoyle. Wickramasinghe remarked that the discovery was "no surprise at all." "He believes it is only a matter of time before other amino acids, together with nucleotide bases, the components of nucleic acids that make up genetic material, are found in space. 'This is just the tip of the iceberg,' he says. 'I would ...
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... Science Frontiers ONLINE No. 96: Nov-Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Lunar Crater Chains The recent breakup of comet Shoemaker-Levi 9 into a long procession of fragments that subsequently crashed into Jupiter (SF#95) causes one to wonder whether similar events have occurred elsewhere in the solar system. On bodies with solid surfaces, the impacts of such processions would likely result in chains of craters. Jupiter's moon, Callisto, in fact, displays a dozen or so crater chains that might be attributed to processions of projectiles. The crater chain on the floor of the lunar crater Davy (Nasa) How about our own moon? H.J . Melosh and E.A . Whitaker have studied the close-up lunar photos and found two good candidates. The more spectacular lunar crater chain stretches 47 kilometers across the floor of the crater Davy. This chain consists of about 23 pockmarks each measuring 1-3 kilometers in diameter. A similar, more degraded chain is found in the crater Abulfeda. Melosh and Whitaker suggest that: ". .. the Davy and perhaps the Abulfeda chains were created by tidally disrupted 'rubble pile' asteroids." (Melosh, H.J ., and Whitaker, E.A .; "Lunar Crater Chains," Nature, 369: 713, 1994.) Comment. It is only natural to ask if the earth itself also bears the scars inflicted by similar processions of celestial debris. In SF#80, we described one ...
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... Science Frontiers ONLINE No. 97: Jan-Feb 1995 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The "inscribed wall" at chatata, tennessee Whence the 200,000 logs of chaco canyon? Astronomy How can some stars be older than the universe itself? Did the universe have a beginning? Solar-system puzzles Biology Fruit dupe Possible survival of giant sloths in south america The early (and persistent) insect catches the bird! Geology The earth's most common topographical feature: abyssal hills The 627-foot water slide between australia and india The age of fire and gravel Geophysics Football-sized snowflakes A LINE IN THE SEA Rubber duckies chase nike shoes across pacific Psychology A MAJOR STUDY OF DOWSING Mentally influencing the structure of water Does the past influence the future? ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Ancient egyptians in the new world? Carbon-14 dating: under a cloud? Translating the grand traverse stone Astronomy The earth has recently been swallowed by a cloud of inter-stellar gas Arp banished, but not redshift anomalies A YAGI WATCHES A SOLAR ECLIPSE Biology Emf fertilizer? Vampire fish -- [x -rated item] Some shaky observations Blindsight also occurs in monkeys Geology A UNIFIED THEORY OF GEOPHYSICS Six immense armadas of icebergs invaded the north atlantic Geophysics An unknown atmospheric light phenomenon Crop-circle litmus test? Earthquake ripples in the ionosphere Psychology Madness and creativity How to test for lucid dreaming Physics Can we explore hyperspace? Unclassified Nobel gossip! ...
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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. 94: Jul-Aug 1994 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Earth's oldest paved road Music and theories of everything Astronomy First you don't see it; then you don't don't see it Beware the ides of june -- and the rest of the month, too! The shattering of 951 gaspra Biology LACRIMA MORTIS: THE TEAR OF DEATH Cancer: a precambrian legacy? Horse sense? Those strange antarctic fishes Our genes aren't us! Geology The incorruptibility of the ganges Geophysics Flat-plate hail Mystery radio bursts Plane weirdness made plain An offset solar halo of 28 ...
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... et al. The occurrence of grooves on Gaspra is consistent with other indications (irregular shape, cratering record) that this asteroid has evolved through a violent collisional history." (Veverka, J., et al; "Discovery of Grooves on Gaspra," Icarus, 107:72, 1994.) Comment. The pits along Gaspra's cracks, as on Phobos, suggest the violent expulsion of gases. Where could these gases have come from? "Sandblows" are sometimes formed during terrestrial earthquakes as natural gases and other fluids are squeezed out of the earth's porous outer crust. Could Gaspra harbor primordial methane? If so, is it biogenic or abiogenic? Reference. An entire chapter on the anomalies of asteroids can be found in our catalog: The Sun and Solar System Debris. Details here . From Science Frontiers #94, JUL-AUG 1994 . 1994-2000 William R. Corliss ...
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