... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Evolution Of Man And Malaria Malarial parasites are customarily classified according to the species infected and then further subdivided by morphology and biological characteristics. The two assumptions implicit in this classification procedure, which is supposed to mirror actual historical evolution, are: Malarial parasites evolved in parallel with their hosts; and Morphology is a measure of evolutionary relatedness. With modern biochemical techniques it is possible to test these assumptions by comparing the DNA structures of the different malarial parasites. P. falcipa rum, the parasite transmitting the most deadly human malaria, turns out to be more closely related to rodent and avian malaria than the other primate malarias. Therefore, assumption #1 above is in correct in this view. Assumption #2 is also wrong because some species of malaria parasites which are very similar morphologically are quite different DNAwise. (McCutchan, Thomas F., et al; "Evolutionary Relatedness of Plasmodium Species as Determined by the Structure of DNA," Science, 225:808, 1984.) Comment. The article does not draw attention to still another assumption; namely, that similarities are measures of evolutionary relatedness. If this as sumption isn't correct, evolutionary family trees based on bodily structure, which means most of the family trees in the textbooks, may not truly reflect what really happened in the development of life. Further, if malarial parasites did evolve along with their hosts, hu man evolution seems farther removed from the evolution ...

... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is a dog more like a lizard or a chicken?Cladism has been around since at least 1950, when the German entomologist William Hennig began classifying organisms in a new way. "His method was simple: classifications of animals and plants should be based on an assessment of their characters, and only advanced, or derived, characters (synapomorphies) should be used. For example, the character 'possession of feathers' is a synapomorphy shared by all birds that is found in no other organisms; it is used in classification to define Class Aves. All birds have a backbone too, but that is a primitive character for birds because it is seen in all other vertebrates. Primitive characters are of no use in defining a monophyletic group." Early on, cladism ignited many fireworks in the biological community. Today, cladism has become quite respectable. The cladists, however, are now fighting among themselves. One camp draws their "cladograms" (see illustration) using evolutionary theory as a guide. The other side believes that the cladograms should be drawn up first, based only upon actual characters and ignoring the theory of evolution -- let the species fall where they may. When evolutonary theory is omitted in the deliberations, radically different cladograms result. Mammals then seem more closely related to birds than reptiles, for example, as expressed in the illustration. A key connecting character here is mutual warmbloodedness. The shifting of ...

... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Magnetic Jerk Problem We reported above that the earth's magnetic field "jerked" in 1969; that is, it suddenly accelerated its westward drift. The earth's core, which through dynamo action reputedly generates the magnetic field we detect at the surface, apparently does not keep pace with the outer crust. It is this sluggishness that produces the observed westward drift of the magnetic field of about 1 meter per hour. While most geophysicists acknowledge that something significant happened to the core in 1969, the geographical extent of the "jerk" is unclear. The acceleration of the field was clearcut in Europe but obscure or undetectable over much of North America. If the jerk was geographically limited, the core perturbation probably was, too. The earth's core may, in fact, eddy and swirl like the planet's atmosphere. Going over past records, geophysicists think they have spotted another jerk in 1912; only that time the field decelerated. (Kerr, Richard A.; "Magnetic 'Jerk" Gaining Wider Acceptance," Science, 225:1135, 1984.) From Science Frontiers #36, NOV-DEC 1984 . 1984-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Whirlwind spirals in cereal fields: quintuplet formations "In 1983, as British meteorologists are well aware, Britain had one of its better summers of the century, with July proving to be the hottest in the 300-year record. At the same time, 1983 proved to be a bumper summer for the production of 'mystery spirals' (and for heat whirlwinds generally). Moreover, and entirely unexpectedly, some of the spiral formations turned out to be symmetrically complex systems in an extraordinary manner: as many as four sets in different parts of southern England were found to consist of a single circle attended by four smaller satellite ones. "The beauty of these sets of circles caught the attention of the national newspapers, and thence the imagination of the general public. The story about the manner and the sequence of several of the 1983 discoveries has been given by Ian Mrzyglod (Probe Report, vol. 4, 4-11). Here, we shall simply summarize the main facts, many of which have not been detailed before. "Set 1. Set of five circles at Bratton, Wiltshire (NGR ST 902522, below and northeast of the Westbury White Horse), consisting of one large circle (15 m diameter) and four satellites (each 4 m diameter). The distance between opposite pairs of circles was about 40 m (centre to centre)." The other three sets are very similar and ...

... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Hypnotically Accelerated Burn Wound Healing "This study was designed to assess the efficacy of hypnotically induced vasodilation in the healing of burn wounds. Patients were selected on the basis of having symmetrical or bilaterally equivalent burns on some portion of their right and left sides. Since one side only of the body was treated by hypnotically induced vasodilation, the patient served as his own experimental control. In this single blind study, the hypnotist and patient knew the side selected for treatment, the evaluating surgeon and nursing staff did not. Four of the five patients demonstrated clearly accelerated healing on the treated side, the fifth patient had rapid healing on both sides. It is concluded that hypnosis facilitated dramatic enhancement of burn wound healing." (Moore, Lawrence Earle, and Kaplan, Jerold Zelig; "Hypnotically Accelerated Burn Wound Healing," American Journal of Clinical Hypnosis, 26:16, 1983.) From Science Frontiers #36, NOV-DEC 1984 . 1984-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why most people are right-handed Depending upon which estimate you believe, 6 to 16% of us are left-handed. On the surface, left-handers seem little different from right-handers. So why the highly skewed population? Why not 50% of each? Dr. Peter Irwin, at Sanddoz, Ltd., of Basle, Switzerland, has what is certain to be a controversial answer. He was led to his conclusion by a series of experiments with psychoactive drugs, performed in collaboration with Professor Max Fink, SUNY, Stony Brook. Left-handers, the study demonstrated, are much more sensitive to drugs that act upon the central nervous system. Irwin believes that this finding is consistent with the known association of left-handedness with epilepsy and learning disorders. "But perhaps the most exciting aspect of Irwin's hypothesis is that it makes evolutionary sense. 'A greater resistance of right-handers to centrally active substances, when Man was a forager and before he learned to identify non-toxic edibles, would have favoured righthanded survival. This might account for the skew in the present handedness distribution that is unique to humans.'" And why should left-handers be more sensitive to psychoactive substances? Irwin thinks they must absorb or metabolize them differently, or perhaps there is a difference in the blood-brain barrier that affects the transport of substances into the brain. (Grist ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology A Disaster-driven Early Civilization Another Remarkable Specimen of Ancient Man Astronomy The Puzzle of the Moon's Origin When Mars Had Lakes Why Aren't the Martian Craters Worn Down? Flip-flop Radio Jets? Biology The Genome's Responses to Challenges "hopeful Monsters" in Iceland? Parasites May Reprogram Host's Cell Geology More Doubts About Asteroids The Earth is Expanding and We Don't Know Why The Grand Canyon Conundrum Evidence for A Giant Pleistocene Sea Wave Recent Pulsations of Life Geophysics "Crystal" Ball Lightning The Big Divot! Shower of Coke Chemistry & Physics Squarks and Photinos At Cern? What Does it All Mean? The Secret of it All is in the Pi ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A DISASTER-DRIVEN EARLY CIVILIZATION Archeologists had long recognized the existence of a highly sophisticated early civilization in the Cauca Valley region stretching 550 miles from southern Ecuador into Columbia. This civilization produced a distinctive pottery and spectacular gold artifacts. It was obviously a highly advanced culture, technologically and socially. But it was dated at 400-800 AD; and for this period in South American history these accomplishments did not seem out of line. Recently, though, additional evidence of this civilization was discovered beneath a datable volcanic ash. The new dates for this civilization are 600-1 ,500 BC, putting it about 1,000 years ahead of Maya and Inca achievements. The "digs" show further that this culture was frequently beset by devastating outbursts of volcanic activity, which often rendered large areas of land uninhabitable. Rather than suppressing this remarkable culture, Donald Lathrap, a University of Illinois archeologist, says: "Those disasters pushed people from the region and led to upward leaps in social evolution..." (Anonymous; "Key to a Vanished Empire," San Francisco Chronicle, June 14, 1984. Cr. J. Covey.) Comment. The reaction of this early society of advanced organisms to environmental stress seems a perfect introduction to several items that follow on how cells and other species respond to stresses from without. From Science Frontiers #37, JAN-FEB 1985 . 1985-2000 William R ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The puzzle of the moon's origin The moon is the closest and best-studied astronomical object. Yet, there is no agreement as to its mode of origin. One might say that planetary scientists have just about thrown in the towel on the three major theories of lunar origin. Two recent articles attest to this discouraging situation. A Sky and Telescope article provides an excellent review of all three theories, indicating the reasons why each fails to convince a majority of scientists. The theories and the primary reasons for their rejection are: (1 ) Fission from earth . Lack of sufficient angular momentum in the earthmoon system and the fact that the moon does not orbit in the plane of the earth's equator. (2 ) Gravitational capture . The capture of such a large object in a nearly circular orbit is considered too improbable. (3 ) Earth-moon accretion as a double planet . The compositions of the earth and moon are too different. This article concludes that the resolution of the problem of lunar origin must await our return to the moon for more scientific exploration. (Rubin, Alan E.; "Whence Came the Moon?" Sky and Telescope, 68:389, 1984.) An article in Science also discusses the classical theories of lunar origin and quickly disposes of them for the above reasons. However, a fourth theory makes an appearance, which we might call the Big Splash Theory ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why aren't the martian craters worn down?The preceding, almost-Lowellian vision of a watery Mars is quite different from what the Mariner and Viking spacecraft tell us about the planet's present condition. Wind rather than water is now the main erosional force. The sand dunes and drifts, the wind-shadows behind rocks, and the sand-blasted surfaces all attest to the desertification of Mars. Ronald Greeley, of Arizona State University, and his colleagues have simulated Martian winds in a special wind tunnel at NASA's Ames Research Center. Using spacecraft-measured wind velocities and patterns, they tried to duplicate the Martian erosional environment. The results were a surprise. They implied that the Martian surface should be worn down by wind-driven sand and dust at rates up to 2 centimeters per century. But at that rate, the Martian craters, which are estimated to be hundreds of millions of years old, would have been worn level long ago. The researchers are now wondering what is wrong with their simulation. They venture that the Martian sand may not be "normal," or perhaps the eroding particles do not travel as fast as they figured. (Anonymous; "The Windblown Planet Mars," Sky and Telescope, 68:507, 1984.) Comment. Another interpretation is that Mars has not been desert-like for as long as presently believed. Reference. The subject of ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The genome's responses to challenges The genome is an organism's genetic endowment. It contains instructions for the organism's growth and development, but it is not like a rigid, uncompromising computer program. Rather, the genome: ". .. is a highly sensitive organ of the cell that monitors genomic activities and corrects common errors, senses unusual and unexpected events, and responds to them, often by restructuring the genome. We know about the components of genomes that could be made available for such restructuring. We know nothing, however, about how the cell senses danger and instigates responses to it that often are truly remarkable." Thus Barbara McClintock ends the paper she delivered in Stockholm when she received a Nobel Prize in 1983. Most of McClintock's paper reviews her pioneering work with the corn genome, but she adds some examples of other genomic responses to external stresses. One such stress is applied to an oak tree when a wasp lays its egg in a leaf. The stress causes the oak genome to reprogram itself and construct a wholly new and unplanned plant structure to house and feed the developing insect. Some of these structures (galls) are very elaborate and are precisely tailored to each different wasp species. From such examples, it is apparent that the genome of an organism somehow perceives stresses and reacts to them -- often in completely unanticipated ways. The stresses may be mechanical, thermal ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Parasites may reprogram host's cell The long, segmented filament shown in the illustration consists of the cells of a parasite that preys on the cells of red algae. Two such cells abut the parasitic filament. The small black circles are parasitic cell nuclei which, when confronted with a red alga cell, become wrapped in small "conjuctor cells" which are then somehow transferred to the host cell on the right. The actual transfer involves the formation on the host cell wall of a sort of dimple called a "secondary pit connection." (Why this forms is not known.) Once inside the host cell, the parasite nucleus and/or the cytoplasm transferred with it dramatically reprograms host cell operations. The host cell shifts into highgear food production, enlarging up to twenty times its normal size. The host cell wall thickens, its nuclei (large black circles) and chloroplasts multiply. Adjacent cells (left) remain unaffected. (Lewin, Roger; "New Regulatory Mechanism of Parasitism," Science, 226:427, 1984.) Comment. It is one thing for external stresses to stimulate cell reprogramming, but quite another when another species inserts its programs into those of the host. Is this another way of producing "hopeful monsters?" A parasitic filament growing between host cells, showing how parasite nuclei are first enclosed in bud-like conjunctor cells and then inserted into the host cell. From Science ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The earth is expanding and we don't know why Let us taunt the geologists now with an idea that many of them consider to be nonsense. The Expanding Earth Hypothesis goes back to at least 1933, a time when the Continental Drift Hypothesis was accorded the same sort of ridicule. Now, Continental Drift is enthroned; and ironically many of its strongest proponents are vehemently opposed to the Expanding Earth, ignoring the lessons of history. The data that suggest that the earth has expanded significantly over geological time come from the pleasant pastime of continent fitting. If one takes the pieces of continental and oceanic crust and tries to fit them together at various times over the past several hundred million years, taking into account the production of crust at the midocean ridges, the fit gets worse and worse as one works backward in time. Great gaps (or "gores") appear between the pieces of crust which geologists believed existed at these periods. (Of course, one can play this puzzle-piece game only at passive continent-ocean boundaries where the oceanic crust has not slid under the continental crust. The South Atlantic is a good place to work.) These embarrassing, grotesque gaps can be made to disappear almost as if by magic by assuming that the earth was smaller in the past. This seems, on the surface, to be a crazy idea. Why would an entire planet swell up like a balloon? ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Recent Pulsations Of Life At a recent meeting of scientists at the Lamont-Doherty Geological Observatory, E. Vrba, of the Transvaal Museum, in Pretoria, stated: "If we eventually are able to establish a good time resolution with the continental record, I expect to be able to discern synchronous pulses of evolution that involve many groups of fauna and flora. Many different lineages in the biota will respond by synchronous waves of speciation and extinction to global temperature extremes and attendant environmental changes. This is my starting hypothesis." Vrba was speaking mainly about the last 25 million years, a mere flash in geological time. For this brief period, the Deep Sea Drilling Program has provided geologists with a detailed and continuous record of climate changes as they were recorded in deep-sea sediments. By contrast, the faunal history of the continents is rather fragmentary, making it rather difficult to match up pulsations of climate with pulsations of life. Even so, scientists have found rather strong correlations between climatary change and biological speciation and extinction at 15, 5, and 2.4 million years ago. (Lewin, Roger; "The Paleoclimatic Magic Numbers Game," Science, 226:154, 1984.) Comment. Note that this is just the period our ancestors seemed to be evolving rapidly. Also interesting is the general agreement between Vrba's statement about the driving forces behind evolution and McClintock's conclusion quoted earlier ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "CRYSTAL" BALL LIGHTNING June 1, 1984. Nottingham, England. Testimony of Mrs. Elsie Haigh. ". .. at approximately 5.45 p.m ., I was in my kitchen. The window and door were both closed. I was standing with my back to the window when I heard a 'boiling noise' and a noise which sounded like glass splintering -- a crash sound. I was very scared and turned around to face the window and saw a large glass-looking ball, approximately 10 inches in diameter (25 cm), slightly oblong (oblate), with a white filament in the middle. This was floating on a bowl of water which was in the sink. I ran to the bathroom, and seconds later I heard an explosion and splintering glass. When it was quiet -- I think a few seconds elapsed -- I returned to the kitchen. The ball had gone and there was no damage. I can only describe it as a miracle." (Meaden, G.T .; "' Crystal' Ball Lightning," Journal of Meteorology, U.K ., 9:218, 1984.) Comment. Other ball lightning observations on file include sounds like "breaking glass." See our Catalog Lightning, Auroras, Nocturnal Lights. For a description of this Catalog, visit: here . From Science Frontiers #37, JAN ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Squarks and photinos at cern?At the CERN lab, in Geneva, physicists shoot protons and antiprotons at each other so that they collide head-on. The colliding particles usually fragment one another and in the process release a variety of subatomic debris and energy. Large arrays of detectors surrounding the collision site record the particles as they streak away. Usually the escaping particles can be easily identified; but in 1983 nine strange events were recorded, and more have occurred in 1984. Something both invisible and inexplicable carried off large amounts of energy during these "strange" events. Physicist Carlos Rubbia, of CERN and Harvard, said: "There is no sensible way to explain the missing energy by known particles." Some theorists believe that these anomalous events will be explained only by invoking what is termed "supersymmetry" theory. Supersymmetry predicts that twice as many particles as those known today must exist. Already, physicists are rushing to name the new, though unverified particles. The symmetric partner of the "quarks" will be the "squarks"; the "photon" will be paired with the "photino"; there will be the "selectron" for the "electron"; and so on. (Thomsen, D.E .; "Strange Happenings at CERN," Science News, 126:292, 1984.) From Science Frontiers #37, JAN-FEB 1985 . 1985-2000 William R ...

... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects What does it all mean?W.G . Pollard, a distinguished physicist, has written a very philosophical, almost mystical article on the nature of the cosmos. Let us begin with his abstract: "There are several hints in physics of a domain of external reality transcendent to three-dimensional space and time. This paper calls attention to several of these intimations of a real world beyond the natural order. Examples are the complex state functions in configuration space of quantum mechanics, the singularity at the birth of the universe, the anthropic principle, the role of chance in evolution, and the unaccountable fruit fulness of mathematics for physics. None of these examples touch on the existence or activity of God, but they do suggest that external reality may be much richer than the natural world which it is the task of physics to describe." Pollard then elaborates: Example 1. Quantum mechanics, a mathematical formulation of reality, has been extraordinarily successful in describing and predicting many things in the microscopic world. Pollard notes that quantum mechanics contains no hint of God per se and possesses no numinous quality, but its great complexity and multidimensionality provide evidence for "the reality of the transcendent order in which the natural universe is embedded." Example 2. The singularity at the beginning of the universe. Science is at a loss to explain creation and what happened before. (Pollard assumes that creation occurred like most scientists.) ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Who Built the East Bay Walls? Ancient Engineering Feat Antarctica Revisited, Hapgood Acknowledged Astronomy Quasar, Quasar, Burning Bright; What Shifts Your Spectral Light? Unidentified Object Young Interplanetary Dust Neptune's Incomplete Ring Biology Whales and Dolphins Trapped Magnetically Listening with the Feet Life in the Dark Bad Year for Water Monsters Geology Galloping Glaciers Geophysics: The Sick Man of Science Geophysics Ball Lightning and Blue Flashes Green Cloud with Light Rays Still Another Mystery Cloud The Sounds That Shouldn't Have Been Expanding Phosphorescent Rings Two Snowflake Anomalies Psychology Hypnosis and Memory The Subtle Placebo ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ancient Engineering Feat Current excavations at Shringaverapura, in Uttar Pradesh, have brought to light a huge, well-preserved water tank about 800 feet long. At its widest point, the tank is about 60 feet wide and 12 feet deep. The entire complex in brick-lined and includes a large settling tank for water diverted from the River Ganga. During the dry season, additional water was supplied from a series of dug wells. This immense system of channels, walls, access stairways, etc. is about 2,000 years old. (Lal, B.B .; "A 2,000-Year-Old Feat of Hydraulic Engineering in India," Archaeology, 38:48, January/February 1985.) From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Quasar, quasar, burning bright; what shifts your spectral light?T. Heckman, of the University of Maryland, has ordained that the apostles of noncosmological redshifts must now recant. He and his colleagues believe that they now have the most convincing demonstration to date that quasar redshifts are of cosmological origin; that is, the larger the redshift, the faster the quasar is receding and the farther away it is. "Availing themselves of the extraordinary new imaging and spectroscopic capabilities of charge-coupled-device (CCD) detectors, they have measured the redshifts of 19 nebulous objects that appear to be companion galaxies of 15 relatively low-redshift quasars. Observing at the Kitt Peak 4-meter telescope, they have determined that, in 18 of these 19 cases, the apparent companion has a redshift very close to that of the quasar. While Burbidge, Arp and their partisans may argue that quasars are so peculiar that they can generate redshifts of unknown origin, this position becomes difficult to maintain for companion galaxies that otherwise look perfectly ordinary." H. Arp and G. Burbidge, chief among those ordered to recant, are not convinced. Arp points to many cases where bridges of luminous material connect high-redshift quasars with low redshift galaxies. Also, the clustering of quasars around nearby galaxies supports the nearness of quasars. As Burbidge has observed, if: ". .. just one large redshift is not due ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Neptune's incomplete ring When the star SAO 186001 had a "close" encounter with Neptune on July 22, 1984, a number of astronomers were watching it carefully to see its light was diminished by an encircling, Saturn-like ring of particles surrounding Neptune. The ring system of Uranus was discovered by studies of similar stellar occultations. Sure enough, astronomers at the European Southern Observatory, in Chile, and the Cerro Tololo Observatory, also in Chile 90 kilometers away, detected a 1-second, 35% reduction in the star's light at the same instant. These data indicate the presence of an object 10-20 kilometers wide -- hardly an undicovered satellite, but possibly a ring. But given the geometry shown, there should have been two occultations, but only the one on the right was registered. Speculation is now rife that Neptune has a partial ring or a grotesquely twisted one. (Eberhart, J.; "Signs of a Puzzling Ring around Neptune," Science News, 127:37, 1985.) Comment. Of course the geometry of the ring could have been such that the star was tangent at one point. It should also be noted that modern astronomers have always laughed off the 1846-1847 observations of a Neptunian ring by W. Lassell and J. Challis! From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Whales And Dolphins Trapped Magnetically Joseph L. Kirschvink, of the California Institute of Technology, has plotted the hundreds of beachings of whales and dolphins along the U.S . east coast. He finds that these cetaceans tend to run aground at spots where the earth's magnetic field is diminished by the local magnetic fields of rocks. These coastal magnetic lows are at the ends of long, continuous channels of magnetic minima that run for great distances along the ocean floors. Kirschvink believes that the stranded whales and dolphins were using these magnetic troughs for navigation and failed to see the stop sign at the beaches and ran aground. The mag-netic troughs in this view are superhighways for animals equipped with a magnetic sense. If Kirschvink's theory is correct, the magnetic sensors of the whales and dolphins are extremely sensitive, because the deepest magnetic troughs are only about 4% weaker than the background magnetic field. Magnetite crystals have been found in birds, fish, and insects, where they are thought to contribute to a magnetic sense of some sort. So far, no magnetite has shown up in whales and dolphins. (Weisburd, S.; "Whales and Dolphins Use Magnetic 'Roads,' Science News, 126:389, 1984.) From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bad Year For Water Monsters R. Razdan and A. Kielar describe in a recent issue of the Skeptical Inquirer the results of their 1983 experiments at Lock Ness with a sonar tracking array. Here are their conclusions: "We have shown that continuous sonar monitoring for seven weeks to a depth of 33 meters in an area where many previous sonar contacts had been reported showed no evidence of anything larger than a 1-meter fish. The circumstances under which previous expeditions had obtained sonar and photographic evidence in support of the existence of the Loch Ness monster could not withstand scrutiny. The evidence itself revealed discrepancies. This is especially true of the Academy's flipper photographs, the published versions of which differ from the original computer-enhanced photographs. Careless deployment of equipment and over-zealous interpretation of the data account for much of the so-called scientific evidence. While it is not possible to prove definitely that the monster does not exist, the evidence so far advanced strongly suggests that the Loch Ness monster is nothing more than a long-lived and extremely entertaining legend." The "Academy" mentioned above is the Academy of Applied Science. This article reproduced both the original JPL computer-enhanced photo of the famed flipper and the photo that was widely published. The "retouching" seems extensive. (Razdan, Rikki, and Kielar, Alan; "Sonar and Photographic Searches for the Loch Ness Monster: A Reassessment ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Galloping Glaciers North America boasts 104 surge glaciers. No one knows why these glaciers behave so differently from normal glaciers; they certainly look the same. But while ordinary glaciers creep along a few inches per day , surging glaciers will sometimes charge ahead at the rate of several yards per hour . The surges may be years apart; and they may occur periodically. The surges start high up on the glacier and propagate down to the foot, which plods along a few inches per day until the surge arrives. Then, it leaps forward, only to return to normality until the next periodic surge. The surges seem to occur when water spreads out under the ice, lubricating its flow. Beyond this we know little. Why do some glaciers surge while those right alongside behave normally? Are the surges really cyclic? The Variegated Glacier, in Alaska, for example, surged in 1906, probably in 1926, in 1947, in 1964-65, and in 1982 -- about 20 years between surges. The surges do not seem to be connected to earthquakes, climatic changes, volcanic heat, or anything obvious. (Beard, Jonathan; "Glaciers on the Run," Science 85, 6:84, February 1985.) From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ball Lightning And Blue Flashes May 31, 1982. Wakefield, England. Kitchen: Blue flashes from a white cellar "We live to the south of Wakefield on the ground floor of a large Victorian house with high ceilings, attics and cellars. Our kitchen and living room face roughly S.S .W . In the late afternoon, a very heavy thunderstorm erupted with torrential rain, and thunderclaps and forked lightning occurring not quite, but almost, simultaneously. Towards the end of the storm, about 5.30 P.M ., I was in the kitchen and my mother in the living room, both facing the windows. There was a very loud peal of thunder and a loud crack, rather like the little explosion of a Christmas cracker greatly magnified. I was at the sink, close to the window, on the ledge of which stands an electric Corvette water heater, plugged in but not switched on. Beside me, about four feet from the ground and two feet to the left of me, at the moment of the crack, there appeared for a second or so, electric blue flashes, six to eighteen inches in length coming from a white centre. I felt nothing, but was startled. There was no damage to the water heater or anything else. Just as I exclaimed at the blue flashes, I heard my mother cry out and ran to her in the living room. She ...