... Science Frontiers ONLINE No. 9: Winter 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tarnished halos?Pleochroic halos are dark rings of various radii seen in mica and other minerals. There is general agreement that alpha particles emitted by radioactive isotopes create the halos. The radii of the rings are proportional to the alpha particle energy, and can thus identify the isotopes in the mineral. Some halos, however, are apparently formed by very short-lived polonium isotopes without any trace of parent uranium isotopes. How can polonium isotopes with half-lives only seconds long get into geologically old mica sans parents? York argues the case for selective local chemical concentration of polonium from fluids in the surrounding rocks. The captured polonium atoms decay almost immediately while the fluid containing the parent atoms passes on. R.V . Gentry objects that mica is almost im permeable and that we must consider the possibility that our concepts of geological time are grotesquely wrong. York energetically defends established Geology using radioactive dating and paleontological arguments. His contempt of Gentry's position is scarcely veiled. This paper is an excellent review of the piechroic halo problem as well as a classic defense of the scientific status quo. (York, Derek; "Polonium Halos and Geochronology," EOS, 60:617, 1979.) Comment. York does not mention Gentry's years of careful work that led him to his heresy, nor are the many objections to radioactive dating discussed. It reminds one of the confident assertions of the permanency of the ocean basins ...

... like, open-looped, or closed-looped. The swirls are sharply defined but do not appear to scour or otherwise disturb the terrains where they occur. Similar swirl patterns have been recognized on Mercury. Two intriguing characteristics of the lunar swirl patterns are: (1 ) They coincide with strong magnetic anomalies; and (2 ) They appear to be very young, being superimposed on top of essentially all lunar features of all ages. Schultz and Srnka suggest that recent cometary impacts created the patterns. (Schultz, Peter H., and Srnka, Leonard J.; "Cometary Collisions on the Moon and Mercury," Nature, 284:22, 1980.) Comment. The terrestrial implications are obvious: our earth must have been hit, too. Perhaps at the Tunguska site there are similar swirl patterns -- now obliterated by vegetation. Reference. Lunar swirl patterns are cataloged in Section ALE5 in The Moon and the Planets. To order, visit: here . From Science Frontiers #11, Summer 1980 . 1980-2000 William R. Corliss ...

... 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 The Song Of The Earth After a major earthquake, the entire earth quivers like a sphere of jelly suspended in space. Already a slightly oblate sphere, the planet becomes successively a bit more oblate, then a bit more prolate, as illustrated. The amplitudes of these deformations are small, just a centimeter or so after big quakes. The tone or frequency of the quivers is just a few millihertz, which translates to periods ranging from 3-54 minutes. We doubt that the telestomping elephants mentioned under BIOLOGY can detect these quiverings. That the earth does indeed "ring" is old news. Geophysicist A.E .H . Love mentioned the possibility in 1911. It is also recognized that large earthquakes can set the earth to ringing (" quivering" is better). What is news is the discovery by N. Suda et al that our planet rings even when no major quakes are occurring, and no one yet knows why. Suda et al write: "The observed "background" free oscillations represent some unknown dynamic process of Earth." Suda and his colleagues detected these oscillations using a superconducting gravimeter, which they installed in a seismically-quiet place: Antarctica. The favorite explanation for the background oscillations is turbulence in the earth's atmosphere. Ocean tides and currents are also on the list as potential "bell-ringers." [El Ninos were not mentioned!] (Suda, Naoki ...

... Online All Issues This Issue Sourcebook Project Sourcebook Subjects The watchmaker is not blind after all!Neo-Darwinists are chained to the premise that evolution proceeds "blindly"; that is, mutations are random and unrelated to the biological needs for survival. This assumption is enshrined in R. Dawkins' book The Blind Watchmaker . Catchy though this title is, it looks more and more like the Watchmaker sees something. For over a decade, experiments have hinted that those mutations that are helpful to an organism's survival occur more often than those that are not "adaptively useful." This controversial phenomenon is termed "adaptive mutation." (SF#64 and SF#96*) A recent issue of Science presents two more papers that seem to confer the gift of sight on the old Watchmaker. Biochemist J.A . Shapiro, in a commentary accompanying the two Science papers, highlights a significant feature of adaptive mutation in bacteria: The genetic changes involved are multicellular. In other words, DNA rearrangements in one cell are actually transferred to other cells. But most profound of all for the whole science of biology is his sentence: "The discovery that cells use biochemical systems to change their DNA in response to physiological inputs moves mutation beyond the realm of 'blind' stochastic events and provides a mechanistic basis for understanding how biological requirements can feed back onto genome structure." (Shapiro, James A.; "Adaptive Mutation: Who's Really in the Garden?" Science, 268:373, 1995.) Comment. Random mutation has been a linchpin ...

... Science Frontiers ONLINE No. 14: Winter 1981 Supplement Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The China Syndrome In Archeology Bit by bit, evidence accumulates showing that Chinese and Japanese ships visited the American Pacific coast long before Europeans. Indian traditions tell of many "houses" seen on Pacific waters. Chinese history, too, tells a charming account of voyages to the land of Fusang. Even old Spanish documents describe oriental ships off the Mexican coast in 1576. Japanese explorers and traders evidently left steel blades in Alaska and their distinctive pottery in Ecuador. Recent underwater explorations off the California coast have yielded stone artifacts that seem to be anchors and line weights (messenger stones?). One line weight found at 2,000 fathoms is covered with enough manganese to suggest great antiquity. The style and type of stone point to Chinese origins for all these artifacts. Apparently, vessels from the Orient were riding the Japanese Current to North American shores long before the Vikings and Columbus reached the continent. (Pierson, Larry J., and Moriarty, James R,; "Stone Anchors: Asiatic Shipwrecks off the California Coast," Anthropological Journal of Canada, 18:17, 1980.) Reference. Such putative Asian contacts are covered in our Handbook: Ancient Man. A description of this book is located here . From Science Frontiers #14, Winter 1981 . 1981-2000 William R. Corliss ...

... many controversies in science, the debates over the origin of the Mima Mounds have been friendly. No one gets overly passionate over bizarre heaps of earth; the Mima Mounds are "fun phenomena." Nevertheless, the biggest of them on the Mima Prairie, near Little Rock, Washington, are very impressive. They are closely-packed, some 6-8 feet high and about 30 feet across. It's kind of eerie walking among them; but they are also fun to ride over in vehicles -- they create a sort of natural roller-coaster effect. There are thousands upon thousands of mounds on the Mima Prairie. Before farmers began leveling them, they stretched for more than 20 miles. If, as some have estimated, they are about 6,000 years old, they were originally twice as high before the elements wore them down. The big question is and always has been: How were these large heaps of churned-up sand, fine gravel, and decayed vegetable matter formed? One has to smile at the dominant theory: pocket! Sure! pocket gophers are bundles of digging energy, but each Mima Mound contains about 100 tons of soil. Multiply that figure by the thousands of mounds, and you begin to wonder about the gopher theory. Also counting against the gophers is the fact that no one has ever found gophers in the mounds, nor has a single gopher bone been found. Now Mima Mounds are found in great numbers in many other locations in North America. South America and Africa also have their "pimpled plains" ...

... abyssal mud We know the Creator made at least one species from dust, but ocean-floor mud has turned out to have more biodiversity. Twenty years ago, biologists put the number of species at about 1 million. Then, they started shaking and gassing rain-forest canopies. The rain of new insect species that fell to the ground made them revise the estimate to 30 million. The latest, long-unappreciated reservoir of undescribed species is mud -- oceanic mud. In particular, we know that the mud in the Rockall Trench off the western coast of Scotland teems with untold species of diminutive nematodes. Of course, nematodes are not as pretty as birds and fish, but they are nevertheless bona fide species of life. Examination of the Rockall mud and that from other seabed sites has convinced the nematode counters that there may be as many as 100 million nematode species on our planet. When other classes of life are added, the figure rises to at least 130 million. (Pearce, Fred; "Rockall Mud Richer than Rainforest," New Scientist, p. 8, September 16, 1995.) Comments. Lifeless molecules can apparently unite to form an almost infinite array of life forms! The next reservoir of unexplored biodiversity may be the crevicular realm -- all those fluid-filled crevices and channels that extend miles down into the earth's crust. They are full of bacteria and other unrecognized microscopic life forms. As for extraterrestrial habitats, who can even guess? From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R ...

... of the abstract dealing with field experiments in several countries. "This report presents new insights into an unconventional option of locating water reserves which relies on water dowsing. The effectiveness of the method is still highly disputed. Now, however, extensive field studies -- in line with provable and reliable historic account -- have shown that a few carefully selected dowsers are certainly able to detect faults, fissures and fractures with relative alacrity and surprising accuracy in areas with, say, crystalline or limestone bedrock. A series of Deutsche Gesellschaft fur Technische Zusam menarbeit (GTZ) projects involving this technique were carried out in dry zones with unexpectedly high rates of success. In particular, it was possible to locate a large number of relatively small underground aquifers in thinly populated areas and to drill wells at the sites where water is needed; the yields were low but sufficient for hand-pump operation throughout the year. Finding or locating a sufficient number of relatively small fracture zones using conventional techniques would have required a far greater work input." A second part of the study involved controlled experiments in which dowsers tried to detect concealed targets such as pipes. (Betz, HansDieter; "Unconventional Water Detection: Field Test of the Dowsing Technique in Dry Zones," Journal of Scientific Exploration, 9:1 and 9;159, 1995. Journal address: ERL 306, Stanford University, Stanford, CA 94305) As one might expect (and should want), dowsing skeptics reacted swiftly to the German work. As for the field studies mentioned in the above quotation, R. Hyman, ...

... If the portion of the brain dedicated to speech were damaged, as in a stroke, it could never repair itself. This dogma is now being challenged. A pertinent line of brain research is now underway at the Coleman Laboratory of the University of California in San Francisco, where Michael Merzenich and his associates are studying the brains of monkeys. "Merzenich's findings challenge a prevailing notion that most sensory pathways in the nervous system are 'fixed' or 'hardwired' by the maturation of anatomic connections, either just before or soon after birth. They also address the puzzling question of what forces may be at work when stroke victims partly recover. Do 'redundant copies' of skills exist outside the damaged regions, or is physical damage within the brain repaired over time? Or can old skills be newly established in different, undamaged brain regions." Apparently the brain should really be compared with a reprogrammable computer. Perhaps the brain even stores duplicates of critical "programs"; i.e ., skills. Merzenich's findings go even farther. He finds that the parts of the brain associated with certain skills or data processing move and change shape spontaneously. The brain, it seems, continually reorganizes itself. Fading fast is the idea that each data point is recorded in a specific cell or neuron interconnection. (Fox, Jeffrey L.; "The Brain's Dynamic Way of Keeping in Touch,: Science, 225:820; 1984.) From Science Frontiers #36, NOV-DEC 1984 . 1984-2000 William R. Corliss ...

... and it may be found even deeper now that we've taken off the blinders. (Littler, Mark M., et al; "Deepest Known Planet Life Discovered on an Uncharted Seamount," Science, 227:57, 1985.) The second discovery came at 10,000 feet in the Gulf of Mexico. There, scientists in the submersible Alvin found a well-developed community of large clams, crabs, mussels, and tube worms, which closely resembles those around the Pacific hydrothermal vents. These life colonies do not use sunlight at all, nor do they depend on other life forms based on solar energy. They employ chemosynthesis, and the hydrogen sulfide and other substances in the vented waters replace sunlight. Although there are no obvious vents at the Gulf of Mexico site, the waters there contain plenty of hydrogen sulfide, indicating seepage from somewhere. The life forms are all new to science, although they resemble those in the Pacific. (Anonymous; "Worms without Vents," Oceans, 17:50, September/October 1984.) Comment. Question: how do non-mobile life forms travel the great distances from one vent or seepage locale to another? It seems as if we are just beginning to appreciate life's colonizing capabilities. Who knows what life forms subsist in the hot geothermal fluids circulating deep in the earth's crust? From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...

... 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The message of aluminum-26 "Our solar system may be inside the cloud of debris from a star that exploded 10,000 to 1,000,000 years ago. This startling conclusion was reached by Donald Clayton of Rice University after studying observations of the amount of aluminum-26 (26Al) in the interstellar medium." Instruments on satellites (gamma-ray spectrometers) have detected so much aluminum-26 that radical hypotheses seem required. The problem is that aluminum26 is radioactive with a half-life of only about 1 million years -- a very short time astronomically speaking. The aluminum-26 cannot be primordial solar-system stuff; it cannot even be 10 million years old. It had to be created somewhere nearby recently. The best aluminum-26 factory conceived so far is a nova in our vicinity. (Anonymous; "Are We inside a Supernova Remnant?" Sky and Telescope, 69:13, 1985.) Comment. A nova close enough to engulf the earth with its debris must have had a profound effect on the earth and its cargo of life -- perhaps on Saturn's rings, too. See next item . From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 42: Nov-Dec 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remarkable Distribution Of Hydrothermal Vent Animals Hydrothermal vents support a bizarre array of large clams, mussels, worms and other curious species. These biological communities are unique in that they are supported not by solar energy but rather the earth's thermal energy. What verges on the anomalous is the appearance in both Atlantic and Pacific Oceans of very similar vent communities, with similar or identical species. How did these continent-separated communities originate ? In the words of the author of the present article, "The cooccurrence of a clam, a mussel, and a vestimentiferan worm at widely separated sites in the Pacific and Atlantic represents either an unusual distribution from a single lineage or, even more remarkably, cases of parallel evolution. " (Grassle, J. Frederick; "Hydrothermal Vent Animals: Distribution and Biology, " Science, 229:713, 1985.) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...

... . Cr. C. Mauge.) Comment. We find in our Handbook Ancient Man an article by A. Rothovius entitled: "The Mysterious Cement Cylinders of New Caledonia." The 1967 article covers much the same ground as that in La Recherche, but sans the giant bird theory. Rothovius states that the cylinders inside the tumuli: ". .. are of a very hard, homogeneous lime-mortar, containing bits of shells which yield radiocarbon dates between 5,120 and 10,950 B.C . -- even the lowest date being some 3,000 years earlier than man is believed to have reached the southwest Pacific from the area of Indonesia." The book Ancient Man is described here . The first three lines of the Los Lunas inscription, showing the Old Hebrew letters. Adapted from Fell's article cited above. From Science Frontiers #43, JAN-FEB 1986 . 1986-2000 William R. Corliss ...

... recent deposits, they would have been judged "man-made" by everyone. The trouble is that Guidon has dated them at 50,000 BP - a date mainstream archeologists cannot swallow. Any New World dates earlier than 12,000 BP, maybe 20,000 BP for a few daring souls, have to be erroneous. How are the Pedra Furada chipped stones explained by mainstream archeologists? They are "geofacts, not artifacts. They were created when quartzite rocks were released by erosion and fell off cliffs to be smashed upon impact below. Gravity and not the human hand broke the quartz into pieces that just happen to look like prehistoric tools. F. Parenti, a coworker of Guidon, has tried to exorcise the geofact argument, which is used wherever tools are "too old", by showing that the 595 pieces of quartz have characteristics quite unlike those created by natural flaking. The doubters are unswayed. You see, despite Parenti's analysis, there remains a minute chance that a falling rock will fracture into pieces, one of which will look human-made. Maybe only one falling rock in 10,000 will fracture "unnaturally;" make it one in 10,000,000; it doesn't matter. Anthropologist D. Meltzer writes: "Of course, no matter how rare the chances, given sufficient time and raw material - Pedra Furada had plenty of both - nature can magnify even the slimmest odds to the point where geofacts occur in detectable frequencies." In this argument, you see how our title "Darwinism in ...

... Moon cannot help but note that the maria contain very few large craters. The more experienced observer will take note of several apparent anomalies. Six magnificent post-mare craters are almost fortuitously located immediately adjacent to mare regions, these being Langrenus, Theophilus, Cavelerius, Aristoteles, Aristarchus, and Copernicus" The author of these observations then buttresses them with a statistical analysis, which indicates a strong, nonrandom distribution of all of these fresh craters. Apparently, the volcano-meteorite controversy is not completely settled after all these years. (Kitt, Michael T,; "Anomalous Distribution of Large, Fresh Lunar Craters," Strolling Astronomer, 31:22, 1985.) Comment. Some of the fresh craters on the mare borders, such as Aristarchus and Copernicus, are well-known sites of lunar transient phenomena. Could they be analogous to the terrestrial volcanos constituting the "ring of fire" around the Pacific Basin? From Science Frontiers #43, JAN-FEB 1986 . 1986-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 106: Jul-Aug 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oklahoma's ornate flints: "eccentric" or fraudulent?Some Mayan eccentric flints were of extremely complex and delicate design. The first of the accompanying illustrations shows some of the ornate flints dug up in Delaware County, Oklahoma, in 1921 by M. Tussinger. The second picture is of a genuine Mayan "eccentric" flint from Quirigua, Guatemala. These exquisite examples of flint knapping evoke two questions: (1 ) Why bother turning out these highly labor-intensive objects by the thousands? (2 ) What are typically Mayan artifacts doing so far north in Oklahoma? Many of the flints, whether from Mayan sites or Oklahoma, are incredibly complex. Some are up to 20 inches in length. Countless hours must have been invested in delicately chipping away at flint blanks. Apparently, ornate flints were an art form of great importance to the Maya. They are found in large numbers in the burials of important personages. Archeologists too often explain puzzling artifacts by saying they had "ritual value." But, this answer may be correct here. Mayan eccentric flints are probably the equivalents of Christian stained-glass windows and elaborately illuminated manuscripts. The less "practical" they are, the higher their ritual value! Purpose aside, did Mayan influence and trade really reach far north into Oklahoma? Many archeologists doubted this at first. They claimed that Tussinger knapped the Oklahoma flints himself and sold them during the Depression for ...

... plate tectonics should no longer be accepted for publication! Happily, at least one publication is still open to heretics. In a 1997 number of New Concepts in Global Tectonics , we find S. Keshav, at Bombay's Indian Institute of Technology, asserting that plate tectonics is a "myth that has paralyzed our thinking." And he gives some reasons for his view: Plate tectonics incorporates many physically impossible processes, such as sediment subduction; i.e ., soft sediments should be scraped off plates as they dive beneath the continents. Plate tectonics does not completely explain the ophiolites (rocks resembling bits of ocean crust that are sometimes found in embarrassing places (far inland). Plate tectonics has difficulty accounting for some mountain belts; i.e ., those far from collisional sites, like Tibet's Kunlun mountains. Finally, Keshav observes: "On the continents this theory assumes mysterious character as many of the features go unexplained (as exemplified by inability to find a trace of the Asthenosphere/Moho) and truly depicts an act of escapism." (Keshav, Shantanu; "A Myth Called Plate Tectonics," New Concepts in Global Tectonics , p. 23, no. 3, June 1997.) Comment. Keshav's objections may be a bit technical, but they reveal cracks in the foundation of a major paradigm. From Science Frontiers #125, SEP-OCT 1999 . 1999-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 48: Nov-Dec 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oil, oil: everywhere, every age Geologists have discovered a major deposit of oil in Precambrian rocks in Australia's Northern Territory. Precambrian oil does exist elsewhere -- around the Great Lakes, Russia, etc. -- but the Australian deposits differ in that they are economically attractive. The oilbearing strata are dated at between 1.4 and 1.7 billion years; and the oil itself is at least this old. Significantly, the oil contains extremely small amounts of steranes, which are thought to be derived from advanced organisms, but there were plenty of chemicals typical of primitive bacteria. The mere existence of commercially exploitable deposits of Precambrian oil implies that, far from being devoid of life, the ancient earth was host to immense accumulations of bacteria and other simple organisms. (Anonymous; "Ancient Oil in Australia: A New Bonanza?" New Scientist, p. 26, September 11, 1936.) Comment. As discussed above this Australian oil might have been produced abiogenically. The surface and near-surface Athabasca oil sands in western Canada constitute a well-known deposit of almost unbelievable size. Geologists have long speculated about where such an immense quantity of biological matter could have originated. (Few dare to suggest nonbiological origins!) Now, we learn that below the Cretaceous Athabasca oil sands lies a 70,000 square kilometer "carbonate triangle" estimated to contain about 2 x 1011 cubic meters ...

... for 5.5 million years. Air does leak in through tiny cracks, and water partially fills the cave. What is most remarkable in this sunless, sealed ecosystem is its biodiversity: 48 animal species, including 33 brand-new species. The roster includes isopods, a millipede, a centipede, a water scorpion, and a leech. Of course, bacteria and fungi thrive there, too. In contrast to unsealed caves, where insects, bats, and other sources of food filter in from the surface, life in the Romanian cave seems to derive entirely from hydrogen sulfide present in the cave's rocks. This compound is consumed by microorganisms, which are then grazed by cave occupants higher up the food chain. A NASA scientist has called Movile cave a "Mars analog site." And indeed it might be, for Mars has plenty of rocks and subsurface water. (Skinrud, E.; "Romanian Cave Contains Novel Ecosystem," Science News, 149: 405, 1996) Comments. Fluid-filled cracks and pores extend miles down below the earth's surface. It would be surprising if novel ecosystems do not exist there, too. The ice-sealed Antarctic lakes (see next item under GEOLOGY) may also surprise biologists. As for outer space -- a realm pulsing with energies of many kinds -- we can imagine that matter has assumed many unfamiliar forms, some of which we might call "life." From Science Frontiers #107, SEP-OCT 1996 . 1996-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Mite Pockets Of Lizards "Many lizards are infested by chig gers, the larvae of trombiculid mites, which feed on tissue fluid and cell debris. Surprisingly, lizards seem to go out of their way to attract the chiggers -- they have special mite pockets that provide a protected, warm and humid site. In many cases, the skin of the lizard also has smaller scales than normal and a good blood supply in the pocket, which enables the parasites to feed more readily." There does not seem to be any advantage to the lizards providing plush accommodations for the chiggers. The chiggers can wreak havoc on their hosts in the form of skin lesions, allergic reactions, secondary infections, and the transmission of diseases. Nevertheless, some 150 species in 5 distinct lizard families possess mite pockets, which are often located in different places in different lizard species. Apparently, the mite pockets evolved separately several times. But why? (Benton, Michael J.; "The Mite Pockets of Lizards," Nature, 325:391, 1987.) Comment. Why haven't the lizards evolved thicker skin or some sort of chemical defense instead of reducing their fitness with mite pockets? Or, are other factors operating? From Science Frontiers #51, MAY-JUN 1987 . 1987-2000 William R. Corliss ...

... system, 4.5 billion years, Saturn's C-ring (and perhaps the other rings, too) is a brand-new feature. Where did it come from? Is it related to the icy comets that seem to be raining down steadily on the earth's atmosphere? (Northrop, T.G ., and Connerey, J.E .P .; "A Micrometeorite Erosion Model and the Age of Saturn's Rings," Icarus, 70:124, 1987.) From Mars. Inside the vast Valles Marineris Canyon complex, Viking Orbiter photos have picked out wind-blown patches of dark material. These patches are strung out along faults for some 200 kilometers. Astronomers believe they are volcanic vents, which are a scant few million years old. (Anonymous; "Recent Volcanism on Mars?" Sky and Telescope, 73:602, 1985.) Comment. Another of the surprisingly large number of youthful features in the solar system. From Europa. The surface of Europa, one of Jupiter's large Galilean satellites, seems to be covered with a relatively smooth veneer of ice. Beneath this frigid skin, according to one theory, lie about 100 kilometers of liquid water. Why hasn't this water frozen completely, given the trifling sunlight at Jupiter's distance from the sun? Tidal stresses provide some heat but not enough; unless, of course, Europa's orbit was much more eccentric in recent times. (Anonymous; "Oceans under the Crust of Europa," Sky and Telescope, ...

... Science Frontiers ONLINE No. 55: Jan-Feb 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Do we really understand the dinosaurs?Until very recently, the standard dinosaur scene in the books and magazines showed huge, ungainly beasts shuffling around in lush swamps. Things are changing. Dinosaurs are now becoming more lively and talented; they may even have been warm-blooded! A recent paleontological expedition to the Gobi Desert by some Canadians will change the dinosaur stereotype even more. The Gobi dinosaur-bone sites are incredibly rich -- comparable with those in Alberta. What is most impressive, however, is the environment the Gobi dinosaurs lived in. "The dinosaurs of China and Mongolia did not live in the same type of lush, well-watered environment that existed in North America during the Mesozoic era, when dinosaurs dominated the globe. The dinosaurs of Alberta flourished on a great swampy coastal plain on the edge of a vast inland sea. In ancient China, conditions were much harsher. A modern-day equivalent would be the Great Salt Lake Basin of Utah. Water did exist in vast shallow lakes, but it was often alkaline and high in soda. The vegetation was scrubland with coniferous forests on the higher ground." (Anderson, Ian; "Chinese Unearth a Dinosaurs' Graveyard," New Scientist, p. 26, November 12, 1987.) Comment. To these Gobi observations should be added those above from northern Alaska, all of 70 north latitude, which suggest that dinosaurs also survived ...

... Science Frontiers ONLINE No. 59: Sep-Oct 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Did an asteroid impact trigger the ice ages?Asteroids and comets are being blamed these days for more and more of our planet's catastrophism -- biological, meteorological, and geological. What a turnabout in scientific thinking in just a decade. F.T . Kyte et al have now provided additional details on meteoritic debris they first described in 1981. On the floor of the southeast Pacific, about 1400 kilometers west of Cape Horn, about 5 kilometers down, they found high concentrations of iridium in Upper Pliocene sediments about 2.3 million years old. Since the proposed projectile hit in very deep water, no crater was dug out. What did survive is called an "impact melt." This is debris rich in noble metals, such as iridium, and contains particles typical of a low-metal mesosiderite. Some 600 kilometers of the ocean floor received this debris. Kyte and his associates estimate the size of the impacting object at at least 0.5 kilometers in diameter. No biological extinctions are correlated with the 2.3 -million-year date, but there appears to have been a major deterioration of climate at about this time. There was a shift in the marine oxygen isotope records and, more obvious, the creation of the huge loess (sandy) deposits in China. What the impact may have done is to vaporize enough water into the atmosphere to increase the earth's albedo, ...

... children who claim to have lived before and can provide verifiable details about their past lives. If the details check out, one can at least claim that reincarnation is a possible interpretation of the data. Usually, however, before a researcher can get to the scene of the phenomenon, the parents of the deceased have been found and the way has been left open for much exaggeration. In his present contribution, Stevenson reports three cases in Sri Lanka where the recollections of the supposedly reincarnated children have been written down in detail and the family of the deceased has not been located. Here is one of his cases: "The Case of Iranga . The child was born in a village of Sri Lanka near but not on the west coast, in 1981. When she was about 3 years old she spoke about a previous life at a place called Elpitiya. Among other details, Iranga mentioned that her father sold bananas, there had been two wells at her house, one well had been destroyed by rain, her mother came from a place called Matugama, she was a middle sister of her family, and the house where the family lived had red walls and a kitchen with a thatched roof. Her statements led to the identification of a family in Elpitiya, one of whose middle daughters had died, probably of a brain tumor, in 1950. Among 43 statements that Iranga made about the previous life, 38 were correct for this family, the other 5 were wrong, unverifiable, or doubtful. Iranga's village was 15 kilometers from Ilpitiya. Each family had visited ...

... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Nodoroc "Buried behind Phil Chandler's farm three miles east of Winder [Georgia], underneath some scrawny trees and unearthly black mud, is a mystery or terror perhaps thousands of years old. .. .. . "' It's real dangerous,' said Fred Ingram, former director of the Barrow County Historical Society. "If you step off in some of that soupy mess, you're gone.' "Before the Harrises drained and worked the land, the area was more than a geographical oddity. It was a sinister place with a reputation among American Indians and early settlers as a burning lake of fire. "' The Indians called it Nodoroc,' said Mr. Chandler, leading a recent tour along the edges of the pit, 'But what they meant was Hell.' "Although few signs remain today, the area was once a bubbly cauldron, a mud volcano from which a steady stream of foul gases ignited into an eerie plume of black smoke that could be seen for miles, according to numerous accounts from white settlers and Creek Indians inhabiting the area in the late 1700s. .. .. . "The Nodoroc slowly declined in intensity, and one day in the mid1800s it blew up in an awesome explosion of mud and heat and expired." (Stenger, Richard; "Histories of Area Describe Terror," Augusta Chronicle, June 11, 1996 ...