224 results found.
... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Echidna Eccentricities Monotremes: platypus (below); one of two species of echidnas (above) The echidna is one of the monotremes-- an egg-laying mammal. Like its relative, the platypus, it is a strange mixture of mammalian, marsupial, and reptilian characteristics. For example, echidna eggs are soft and leathery, like those of reptiles, but they are brooded in a marsupial-like pouch. The emerging baby echidna has an egg tooth like the birds and reptiles, while the adult has no teeth at all. Rather, it has a narrow snout through which it ingests ants and termites caught on its sticky tongue. In this it resembles the mammalian ant-eaters, which are also toothless but an ocean away from Australia. In fact, the echidna is often called a "spiny anteater" for it has the sharp spines of a hedgehog or porcupine. There are more anatomical peculiarities, but let us focus on the echidna's strange behavior during the mating season. At this time, 2 to 8 echidnas can be seen roaming the Australian bush in "trains" headed by a female with the smallest male acting as a caboose. When mating time arrives, the female anchors herself to a tree with her forelegs. To-gether the males dig a circular "mating rut" up to 10 inches deep around the tree. (Australians have puzzled over these circular trenches for years.) Eventually the strongest male evicts the other males from the trench, the purpose of which now ...
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... Science Frontiers ONLINE No. 73: Jan-Feb 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects America b.c . and even earlier The thought that the Atlantic might have been a thoroughfare long before Columbus and the Vikings has been ridiculed by most archeologists for decades. New England megaliths and B. Fell's translations of purported Celtic ogham inscriptions have met only with derision in the professional literature. But times are changing -- at least we hope so. The Red Paint People. Public TV recently aired a program on North America's Red Paint People, so-called because they added brilliant red iron oxide to their graves. It also seems they knew how to sail the deep ocean, as G.F . Carter now relates. "Decades ago, Gutorn Gjessing pointed out that the identical [Red Paint] culture was found in Norway. No one paid much attention to that, but more recent carbon-14 dating has shown that the identical cultures had identical dates, and people began to pay more attention. It is now admitted that this is a high latitude culture that obviously sailed the stormy north Atlantic and stretched from northwest Europe over to America. It seemingly extends from along the Atlantic coast of Europe to America and in America from the high latitudes of Labrador down into New York state. "The dates are mind-boggling: 7,000 years ago both in Europe and America. That is 2,000 years earlier than the Great Pyramids of Egypt. It is at least 4 ...
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... Science Frontiers ONLINE No. 70: Jul-Aug 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why aren't beach pebbles round?The next time you walk along an ocean beach, forget the greater anomalies of nature and pick up a few well-worn pebbles. Q.R . Wald collected 200 such at random and measured them with calipers. He found that their three axes tended toward the ratios 7:6 :3 . No, beach pebbles are not spherical, they are flattened ovoids. We would naturally expect that the ceaseless action of the surf would turn out nearly perfect spheres. So much for intuition! (Wald, Quentin R.; "The Form of Pebbles," Nature, 345:211, 1990.) From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
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... The Australian Sceptics suspect pranksters. (Anonymous; "More Circles," New Scientist, p. 23, August 11, 1990.) An article in a Perth newspaper puts the number of wheat circles in Victoria at 400, as of July 9. That's a lot of work for hoaxers! It is also said that the soil in the rings is "magnetically altered," whatever that means. (Anonymous; "Outback Martian Rings Riddle," Perth Daily News, July 9, 1990. Cr. P. Norman via L. Farish) Plasma vortex picked up by radar. "Japanese and British meteorologists are investigating a link between a fastmoving object crossing the Pacific and the mysterious appearance of crop circles in English fields. "A ship from Tokyo University's Ocean Research Institute was in the Pacific when its radar equipment located a large object travelling more than four times the speed of sound. The radar discounted it as an aircraft because of its size, 400 metres across, and it sped northwards. "The Japanese scientists identified the object as a plasma vortex, caused by freak weather. The phenomenon is similar to ball lightning and believed to be generated by 'mini-tornadoes' of electrically-charged air. "Plasma vortices can be luminous at night. 'They are often mistaken for UFOs,' says Dr Terence Meaden, director of the Oxford-based Tornado and Storm Research Organization." (Spicer, Andi; "Clue to mystery of Circles," London Observer, May 20, 1990. Cr. T. Good via ...
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... . A second wave pounded the ship as it went down. The Marques filled with water and sank in less than one minute. Most of the crew were trapped as they slept below deck. Only Sefton and eight shipmates survive." Accounts such as that above are part of sea lore. Waves 50-100 feet high have been frequently reported over the years. Most often, they are encountered in rough seas, but some walls of water have smashed ships in relatively calm waters. A tanker encountering a steep-sided giant wave in the Aguhlas Current of the African coast. Until recently, oceanographers were confident that any unusually large wave was just the chance addition of two smaller waves. Now, a consensus is emerging that at least two other factors are important: seabed topography and ocean currents. To illustrate, perhaps the most dangerous stretch of water in the world lies off southeast Africa, where the fast (8 feet/second) Agulhas Current often runs into storm waves surging up from Antarctica. The African continental shelf is so shaped that it funnels the current directly into the storm waves. Immense, steep-fronted waves have broken many a ship here. In sum, the old statistical theory about the origin of rogue waves has been jettisoned, but a new approach is still in the formative stages. (Brown, Joseph; "Rogue Waves," Discover, 10:47, April 1989.) Comment. But can any theory explain giant, solitary waves on calm seas. For more on this subject, see GHW in Earthquakes, Tides, Unidentified ...
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... Mainstream thinking is that "passing comets and asteroids" might bequeath Mercury some of their H2O cargos. (Cowen, R.; "Icy Clues from Mercury's Other Half," Science News, 140:295, 1991.) Also: Wilford, John Noble; "Photographs by Radar Hint of Ice on Poles of Mercury," New York Times, p. A14, November 7, 1991. Cr. J. Covey) Comment. What the above references do not mention is the possibility that the requisite water vapor for the formation of Mercury's polar caps might come from a steady rain of icy minicomets. L. Frank has suggested that 100-meter icy minicomets continuously pepper solarsystem planets. They might even have contributed to the formation of the earth's oceans. Icy comets are anathema here on earth and are equally detestable at Mercury's orbit. From Science Frontiers #79, JAN-FEB 1992 . 1992-2000 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 Lunar Eclipses And Radio Propagation One can understand why long range radio propagation might be affected during a solar eclipse, because the ionizing radiation of the sun is temporarily intercepted by the moon. There is no such obvious explanation for radio propagation problems during lunar eclipses. Nevertheless, we have the following observation by L.M . Nash: "During 1978/79, I was stationed on Diego Garcia (U .S . Naval base in the Indian Ocean). I was an amateur radio operator then, and one night there was a total (or near total) eclipse of the moon. I was in contact with a station in Utah, on the 15 meter (21.0 to 21.45 MHz) band. When the eclipse started, the Utah station faded out, and all I heard was a sizzling, crackling noise across the entire 15-meter band. This started and ceased within the duration of the eclipse. I then reestablished contact with the Utah station, who was still on the same frequency talking to a friend of his. When I asked him what happened, he stated that my signal had just disappeard." (Nash, Lemuel M.; personal communication, May 12, 1990.) From Science Frontiers #71, SEP-OCT 1990 . 1990-2000 William R. Corliss ...
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... custom-arily explain drumlins as debris piled up and sculpted by the ice sheets them-selves, despite the fact they look like they might have been shaped by flowing water. As we all know, the word "flood" is an anathema in geology, probably because a provable episode of extensive flooding would lend credence to the Biblical Flood! (Actually, many cultures around the world have similar flood legends.) Canadian geologist J. Shaw is now trying to break out of this philosophical prison. "According to Shaw, heat from the Earth formed huge lakes of meltwater that remained trapped beneath the North American ice sheet. As the sheet began to retreat near the end of the glacial age, the water broke through and flowed in torrents down to the Gulf of Mexico and Atlantic Ocean. While flowing under the ice cap, water would have surged in vast, turbulent sheets that sculpted and scoured drumlins. Each flood lasted until the weight of the ice cap once again shut off the outlet of the covered lake, Shaw says." Shaw goes on to estimate that one large drumlin field in Saskatchewan was created when 84,000 cubic kilometers of water was discharged. Just this single episode would have raised global sealevels by about 10 inches in a few days or weeks. Imagine what happened as this water flowed across North America. Many geologists look askance at Shaw's theory of drumlin formation. (Monastersky, R.; "Hills Point to Catastrophic Ice Age Floods," Science News, 136:213, 1989.) Comment. The famous Channelled Scablands ...
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... Science Frontiers ONLINE No. 79: Jan-Feb 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Deeply-buried life West-to-east profile of the Florida-Bahamas carbonate platform. Deep in the Gulf of Mexico, along the edge of the great carbonate platform that breaks the surface as Florida and the Bahamas, thrives a diverse community of animals that does not depend upon the sun for energy. Instead, they feast on carbohydrates provided by symbiotic bacteria. Since there are no ocean-floor vents spewing mutrients and hot water in the area, scientists have wondered where these bacteria obtain the methane and sulfides that nourish them. C.S . Martens and C.K . Paull, of the University of North Carolina, propose that bacteria living miles down within the carbonate platform generate the methane and sulfides as they consume organic matter buried long ago in the limestone. These excreted, energy rich gases and fluids seep upward and outward, sustaining biological communities along the edge of the platform. (Monastersky, R.; "Buried Rock, Bacteria Yield Deep-Sea Feast," Science News, 140:103, 1991.) Comment. (1 ) Looking far back in time, the sun was, of course, the energy source, because it helped create the buried organic matter. (2 ) However, there is always the possibility that the methane seeping out of the earth is abiogenic. See BLACK GOLD -- AGAIN under Geology . (3 ) How deeply into the crust has life penetrated ...
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... shallow seas. Whether this outgassing of methane comes from shallow accumulations of organic matter or from deep within the crust is still debated. Here, geophysics merges with biology. Recently, a group of researchers discovered a large (540 square meters) patch of chemosynthetic mussels in a brine-filled pockmark, at a depth of 650 meters, off the Louisiana coast. The mussels grew in a ring around the concentrated brine. The mussels harbor symbionts which consume the methane still seeping up through the brine from a salt diapir (a massive fingerlike intrusion 500 meters below the brine pool. The origin of some diapirs is not well-understood.) The mussels get the oxygen they require from the ordinary seawater covering the dense brine. Like the biological communities surrounding the "black smokers" and other ocean-floor seeps, the brine-filled pockmark community includes several species of shrimp, crabs, and tube worms. We have here another example of the astounding ability of lifeforms to take advantage of unusual, even bizarre niches. (MacDonald, I. Rosman, et al; "Chemosynthetic Mussels at a BrineFilled Pockmark in the Northern Gulf of Mexico," Science, 248:1096, 1990.) Comment. Such examples of life's adaptability are so common one hesitates to label them as anomalous. Yet, one wonders how and why life acquired this property. Is the human urge to go to the planets a genetically derived extension of this urge to colonize new terri tories. From Science Frontiers #73, JAN-FEB 1991 . 1991-2000 William R. Corliss ...
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... there and when? (2 ) Hydrothermal-vent communities have been discovered at a depth of about 400 meters in the northern part of the lake. These communities contain sponges, bacterial mats, snails, transparent shrimp, and fish; some of which are new to science. Baikal's thermal vents are the only ones known in freshwater lakes. Their rela tion to saltwater vent communities has not yet been explored. (Stewart, John Massey; "Baikal's Hidden Depths," New Scientist, p. 42, June 23, 1990. Also: Monastersky, R.; "Life Blooms on Floor of Deep Siberian Lake," Science News, 138:103, 1990.) Comment. Despite its inland position, the suspicion develops that Baikal was connected to the oceans in recent geological times. From Science Frontiers #72, NOV-DEC 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 56: Mar-Apr 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oceans From Space In keeping with the foregoing extraterrestrial flavor, we are happy to report that our oceans may be exogenous; that is, derived from extraterrestrial materials. Once again, comets seem to be the culprits. C.F . Chyba has examined the lunar impact record and derived an estimate of the total mass of objects impacting the moon during the (hypothetical) period of heavy bombardment 3.8 to 4.5 billion years ago. This allowed him to calculate the mass influx for the earth during this period. His conclusion: if only about 10% of the incoming mass consisted of comets (mostly ice), the earth would have acquired all its ocean water. (Chyba, Christopher F.; "The Cometary Contribution to the Oceans of Primitive Earth," Nature, 330:632, 1987.) Comment. Frank claims that the earth today is continually bombarded by small icy comets, which down the eons may have kept the ocean basins full. So, we have two possible extraterrestrial sources of oceans -- both of a cometary nature. It was only yesterday that the idea of ice surviving in outer space was ridiculed; no one even dreamed that our oceans could be composed of space ice! From Science Frontiers #56, MAR-APR 1988 . 1988-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 58: Jul-Aug 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects One of the most astonishing discoveries of modern science!We take this title from P. Huyghe's recent overview of the "oceans from space" controversy, printed not surprisingly in Oceans . (See p.000.) As readers will recall, we have been following this debate for over two years. Rather than retrace all the details, it is sufficient to say that the scientific community has been generally negative and often condemnatory about L. Frank's assertion and evidence that each year some 10 million icy comets, each averaging sixty compact cars in weight, strike the earth's atmosphere and, in the fullness of time, help fill the ocean basins. In his article Huyghe reviews the considerable evidence that has accumulated supporting Frank's claim: The water in Halley's comet had the same abundances of two key isotopes as the earth's oceans; The rocket detection of unexpected amounts of water vapor in the upper atmosphere; The microwave detection of unusual water-vapor events in the upper atmosphere; The Lyman-alpha detection of hydrogen concentrated near the earth; and The photographic detection of small, incoming objects with the characteristics of the debated icy comets. (Huyghe, Patrick; "Oceans from Space -- New Evidence," Oceans , 21:9 , April 1988.) Item 5. has been reported in other publications: "Using a telescope with a moving field of view ...
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... 's internal structure in terms of the physical and chemical properties as well as the time scale of the processes that take place on either side of it. Its shape, if different from that predicted by the hydrostatic equilibrium theory, may contain information important to our understanding of geodynamic processes in the mantle or the geomagnetic field generated in the outer core." (Ref. 1, and also item #7 below) The earth's magnetic field possesses four lobes which remain fixed relative to the earth's surface, as demonstrated by 300 years of data. These lobes do not drift westward like the general field. (Ref. 2) "Core-spot pairs" of magnetic intensity seem to move westward and poleward. In the southern hemisphere, they originate under the Indian Ocean and drift under South Africa into the southern Atlantic. This motion reminds one of sunspot motion, except that sun-spots move equatorward. There may be a connection here. (Ref. 2) The general decrease in the earth's magnetic field over the past few centuries may be due to intensifying core spots, which are magnetized in a sense opposite that of the main field. (Ref. 2) Large, deep earthquakes in 1983 and 1984 produced slow, wavelike changes in the local gravitational field at the surface, as measured by new superconducting gravity meters. The periods were 13-15 hours. (Ref. 2) Gravity and magnetism measurements from satellites show strong, coincident anomalies in the Indian Ocean (3 N 81 E). In fact the whole ocean ...
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... 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 Wheels of light: sea of fire It has always been perplexing that scientists have made no concerted effort to find the cause of the many forms of the geometrical luminescent displays seen in the Persian Gulf, the Indian Ocean, and other warm waters. True, a few individual researchers have looked at literature and done some theorizing; but no expeditions have been launched that we know of. Here is a well-verified, richly complex, eerily beautiful, natural phenomenon that is almost completely neglected by science. Happily, P. Huyghe has now brought the problem to the fore in a comprehensive article in Oceans, He reviews several types of luminescent displays and some of the theories-of-origin that have been proposed. We have space here for only one of the observations he records. P. Newton was the Chief Officer on the M.V . Mahsuri, which was passing through the Gulf of Oman bound for Australia. It was a dark, moonless night in May. "Then it happened. What first caught Newton's attention was a pale green glow on the horizon just ahead of the ship, but he said nothing to the cadet standing watch with him. Moments later, parallel bands of bluegreen light began to sweep silently over the water toward the ship from the southeast. Still, Newton said not a word, but he felt as if he should duck. Each light band was about 10 to ...
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... Science Frontiers ONLINE No. 63: May-Jun 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Comets And Life A comet impact: Cross-sectional view 0.637s after impact of a comet into a 3km-deep ocean (light dots) underlain by basaltic crust (darker grid) in the smoothed particle hydrodynamic model of Thomas et al. Small vertical ticks are 1 km apart, small horizontal ticks 1.25 km apart. The comet in this figure has a radius of 1 kilometer and an impact velocity of 15 km/s and is shown by dark dots in the ocean. The initial spherical comet has become flattened, and parts of it have separated from the main body. The back side of the comet and most of the separated particles are much lower in temperature than the impacting side, and in an impact of a smaller comet (which would look much the same), organic material at the rear of the comet would survive intact. Figure provided by Paul Thomas. "New simulations suggest that large amounts of the organic molecules needed to form the first life on Earth could have been brought by comets that bombarded the planet early in its history. The models show that comets of moderate size would have slowed down enough during entry into the Earth's atmosphere for their organic component to survive the impact intact. .. .. . "The idea that comets supplied the Earth with the organic material needed to create life has been around for more than 20 years, but as often as some ...
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... allows them to monitor their position and progress on the map. They are not using the directional information of the Earth's field, as we do with our compasses, but small relative differences in the total local field. I arrived at this explanation after a detailed analysis of the records of strandings in Britain, but it has so far been confirmed by two groups working in the U.S . Similar work is in progress in other parts of the world. "The total magnetic field of the Earth is not uniform. It is distorted by the underlying geology, forming a topography of magnetic 'hills and valleys.' My analysis shows that the animals move along the contours of these magnetic slopes, and that in certain circumstances this can lead them to strand themselves. In the oceans, sea-floor spreading has produced a set of almost parallel hills and valleys. Whales could use these as undersea motorways, but might swim into problems when they came near the shore, because the magnetic contours do not stop at the beach. They continue onto the land, and sometimes so do the whales." In addition to stranding because of land-intersecting contours, unpredictable changes in the earth's magnetic field can upset the whales' timing mechanism, causing them to lose their true position on their magnetic dead-reckoning maps. Magnetically speaking, they become lost. (Klinowska, Margaret; "No Through Road for the Misguided Whale," New Scientist, p. 46, February 12, 1987. Also: Ellis, Richard; "Why Do Whales Strand ...
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... Science Frontiers ONLINE No. 63: May-Jun 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where on earth is the crust?This long article concludes with an intriguing snippet. "Plate tectonic processes circulate the entire oceanic crust back into the mantle every 100 million years. Ero sion also removes part of the continental crust, and some of the eroded material may eventually find its way to deep oceanic trenches, where it is also returned to the mantle. This implies that at any given time only about 10% of the crust is at the surface. Much of the continental crust, however, is more than half the age of the earth, so one can infer this part has not recirculated recently." (Anderson, Don L.; "Where on Earth Is the Crust?" Physics Today, 42:38, 1989.) Comment. The machinations of plate tectonics, therefore, may well be responsi ble for missing sections of the geologi cal column and fossil record. From Science Frontiers #63, MAY-JUN 1989 . 1989-2000 William R. Corliss ...
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... 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, reflecting sunlight back into space, lowering the average temperature, and thus triggering the Ice Ages. (Kyte, Frant T., et al; "New Evidence on the Size and Possible Effects of a Late Pliocene ...
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... 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 The Ubiquity Of Sea Serpents Public interest is usually focussed (by the media) upon the supposed monsters in Loch Ness, Lake Champlain, the Chesapeake Bay, etc. Actually, an immense body of sea serpent reports also exists. B. Heuvelmans collected many of these in his 1965 classic In the Wake of the Sea-Serpents. P.H . LeBlond, a professor at the University of British Columbia, is extending Heuvelman's work, concentrating on the thousand miles of Pacific Coast between Alaska and Oregon. Since 1812, there have been 53 sightings of sea serpents or other unidentified animals along this narrow strip of ocean. Some of these are very impressive. Take this one for example: "In January 1984 a mechanical engineer named J.N . Thompson from Bellingham, Washington, was fishing for Chinook salmon from his kayak on the Spanish Banks about three-quarters of a mile off Vancouver, British Columbia, when an animal surface between 100 and 200 feet away. It appeared to be about 18-20 feet long and about two feet wide, with a 'whitish-tan throat and lower front' body. It had stubby horns like those of a giraffe, large (' twelve to fifteen inches long') floppy ears, and a 'somewhat pointed black snout.' The creature appeared to Thompson to be 'uniquely streamlined for aquatic life,' and to swim 'very efficiently and ...
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... and copiously bombarded by small, icy comets. Not just a few now and then, but a steady rain so intense that over geological time some major geological consequences must ensue. (See SF#44.) Some observers commented that surely these scientists have thrown away their careers by suggesting something so ridiculous. But the data are there -- in the form of dark spots on satellite images of the earth's dayglow -- and late results continue to support this far-out interpretation, ridiculous or not. "The mass of these objects is estimated at about 108 gm each, and the total flux is about 107 small comets per year. If this flux is representative of the average flux over geologic time, then the water influx is sufficient to fill the Earth's oceans. The fluxes of these objects are also large for all the planets outside the orbit of Earth. Considerations of thermal stability imply that the fluxes of comets that impact Venus are considerably less. The outer giant planets may be significantly heated relative to solar insolation by the small-comet impacts. For example, the total energy input due both to solar insolation and comet impacts may be similar for Uranus and Neptune. Thus it is possible that the temperatures of these two planets are similar, even though Neptune is farther from the Sun." (Frank, L.A ., et al; "On the Presence of Small Comets in the Solar System," Eos, 68:343, 1987.) Comment. What has all this to do with "cosmic Gaia"? ...
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... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Carolina Waterguns "Residents of North Carolina's southeastern coast call it the 'Seneca Guns' and say it's caused by chunks of the continental shelf dropping off a cliff under the Atlantic Ocean. "' You will feel the house kind of shake and windows rattle,' said Walt Workman, assistant chief of police in Long Beach. 'It sounds a lot like a sonic boom type of thing.' "The rumbling boom with a sound like artillery fire is heard along North Carolina's southernmost beaches, sometimes as often as once or twice a week, and scientists can't explain the phenomenon. The sounds have been heard as far north as Fort Fisher, located just north of Cape Fear." (" Booms Keep Coastal Area Guessing," Charlotte Observer, January 26, 1987. Cr. G. Fawcett via L. Farish) Comment. The real Seneca Guns are, of course, in New York, where they have been heard for years about Lake Seneca. Category GSD, in Earthquakes, Tides, Unidentified Sounds, provides numerous examples of such waterguns, from all around the world. Information about this book may be found here . From Science Frontiers #52, JUL-AUG 1987 . 1987-2000 William R. Corliss ...
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... or nodes. With random inputs, large networks do exhibit self-organization. Network theory is now very popular in the field of artificial intelligence. (Remember the computer Hal in 2001?) Davies's conclusion: ". .. Neo-Darwinism, combined with the mathematical principles emerging from network theory and related topics, will, I am convinced, explain the 'miracle' of life satisfactorily." (Davies, Paul; "The Creative Cosmos," New Scientist, p. 41, December 17, 1987.) The superorganism. One week later, O. Sattaur expanded on the Gaia concept. He quotes J. Lovelock's definition: ". .. the physical and chemical condition of the surface of the Earth, of the atmosphere and of the oceans has been, and is, actively made fit and comfortable by the presence of life itself...in contrast to the conventional wisdom which held that life adapted to planetary conditions as it, and they, evolved their separate ways." Mainstream science has shown scant love for the Gaia concept, probably because of its holistic nature. The idea of the earth being greater than the sum of its organic and inorganic parts -- a superorganism -- is foreign to reductionistic science. In Gaia, our planet is a giant, self-regulating entity, something larger than and independent of humanity. Is this scientific? D. Abram deplores modern, mechanistic, reductionistic science as "immature." He thinks that the Gaia hypothesis may well signal the growing up of science. Sattaur ...
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... a major snowstorm or flooding rains would hit northeastern states within six days. Wollin contacted the weather people in the region, but they discounted the prediction because satellite pictures and conventional weather indicators implied nothing of the sort. A three-day storm began on January 25, depositing 3 feet of snow in northern New England and 4 inches of rain along the coast from Washington to Boston. Wollin has had similar successes, without even looking at a weather map! Obviously, Wollin's forecasting techniques are not yet part of the Weather Bureau's arsenal. This is not too surprising because even Wollin does not understand why major storms should be preceded by several days by nervous magnetometers. He talks in a tentative way about solar storms, which do affect terrestrial magnetism, dumping energy into the oceans and thence into the atmosphere. But this is mainly speculation. Historically, we do know that long-term changes in the earth's magnetic field are linked to global temperature levels (see graphs); but here, too, cause and effect are not obvious. (Gribbin, John; "Magnetic Pointers to Stormy Weather," New Scientist, p. 70, December 25, 1986.) Long-term changes in global temperature follow changes in geomagnetic intensity. From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... . First, a tad of background: Great meteor impacts and tektite events seem to have occurred nearly simultaneously with deep-cutting biological extinctions and reversals of the earth's magnetic field. Ever since this apparent synchrony was recognized a few decades ago, theorists have been vying in generating scientific scenarios, especially some mechanism that would reverse the earth's magnetic field. New entrants in the lists are R. Muller and D. Morris, two Berkeley physicists. Here is how they see it: "A sufficiently large asteroid or cometary nucleus hitting the Earth lofts enough dust to set off something like a 'nuclear winter.' The cold persists long after the dust settles because of the increased reflectivity of the snow-covered continents. In the course of a few centuries, enough equatorial ocean water is transported to the polar ice caps to drop the sea level about 10 meters and thus reduce the moment of inertia of the solid outer reaches of the Earth (crust and mantle) by a part in a million. 'That doesn't sound like much, Morris told us. 'But when we realized that this translates into a full radian of slippage between mantle and core in just 500 years, we began to look seriously at the consequences.' With the moment of inertia of the crust and mantle 'suddenly' decreased, the argument goes, they begin spinning faster than the solid-iron inner core at the center of the Earth. The 2300-km thick shell of liquid outer core that separates the mantle from the inner core thus acquires a velocity shear ...
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... been correlated with biological extinctions, magnetic field reversals, and basalt flooding. The astronomical causes of this supposed periodicity range from the solar-system's crossing of the galactic plane, to the perturbations of an unseen solar companion, to regular perturbations of the Oort cloud of comets that is thought to hover at the fringe of the solar system. In short, a large, interlocking edifice of geological and astronomical speculation has been erected upon a foundation of terrestrial crater ages. But how well do we really know the ages of these craters? How complete is the cratering record? The answer to the first question is: "Not well at all." Further, we can be certain that many craters still lie undiscovered beneath sediments. In addition, most meteors/comets splashed into the oceans, leaving no record at all. An updating of the most recent crater data available, such as they are, greatly weakens the case for the popular 28-31 million-year period and strengthens support for a 19-22 million-year period. But neither cycle is in synchronism with the famous K-T (Cretaceous-Tertiary) Boundary, with its perplexing iridium layer and massive biological extinctions. In fact, say V.L . Sharpton et al, the entire known cratering record could well be the consequence of chance encounters between the earth and stray meteors and comets. Thus would pass the periodicities of this world! (Sharpton, V.L . et al; "Periodicity in the Earth's Cratering Record?" Eos, 68: 344, 1987 ...
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... .R . Hawke, of the University of Hawaii, have acquired near-infrared spectra of the swirl designated Reiner Gamma. They report that the composition of the swirl material does not match the crater ejecta; and, also, that a previously undetected reddish halo surrounds the swirl. Best guess at present: The swirls are the scars of comets -- probably less than 100 million years old. (Anonymous; "Cometary Scars on the Moon," Sky and Telescope, 75:11, 1988.) Comment. Does nearby earth also bear cometary scars? Some think that the 1908 Tunguska Event was a cometary impact. (See ETC2 in our catalog: Caro lina Bays, Mima Mounds .) Also see the the item below under GEOLOGY about comets and the earth's oceans. Reference. Both catalog volumes mentioned above are described here . From Science Frontiers #56, MAR-APR 1988 . 1988-2000 William R. Corliss ...
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... observed from satellites. In the Bay of Biscay 'boils' have been reported on the sea surface in the calm zones, and appear to be related to pulses of nutrients from the thermocline." These surface phenomena are truly delightful and almost always the consequence of internal waves interacting with the surface. The great bulk of the referenced report is concerned with sonar observations of internal waves and their effects along the coast of Scotland. (Thorpe, S.A ., et al; "Internal Waves and Whitecaps," Nature, 330:740, 1987.) Comment. For some remarkable accounts of wave packets, as well as solitary waves, see category GHW in Earthquakes, Tides, Unidentified Sounds. This book is described here . On March 28, 1964, in the Indian Ocean, the R.R .S . Discovery encountered five bands of breaking waves in an otherwise nearly calm sea. Wave heights were about 2 feet. There was no wind change when the waves passed. (Category GHW2 in Earthquakes, Tides, etc). From Science Frontiers #56, MAR-APR 1988 . 1988-2000 William R. Corliss ...
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... 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 Powerful Concentric Waves We wish we could pass along more data on this phenomenon. The totality of our information resides in two sentences mentioning an observation by the crew of the Soviet spacecraft Mir: "The crew reported seeing an unexplained ocean phenomenon, 'powerful concentric waves going out in the midst of a serene sea.' The cosmonauts did not report where they saw the waves but said the circular features were many miles across." (Anonymous; "Soviets Demonstrate Flight Readiness with Firing of Heavy Lift Booster," Aviation Week, p. 20, March 16, 1987. Cr. G. Earley) From Science Frontiers #55, JAN-FEB 1988 . 1988-2000 William R. Corliss ...
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... 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, 73:602, 1987.) Comment. An alternate possibility is that Europa's ice and water inventories are recent acquisitions, like Saturn's rings! From Science Frontiers #53, SEP-OCT 1987 . 1987-2000 William R. Corliss ...
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... emerging from the thermal vents, 2200 meters below the surface...'The source of the light is still unclear,' said Joe Cann, a geologist from the University of Newcastle in Britain. The scientists suspect that the water itself is glowing." The water temperature is so high -- 350 C -- that bioluminescence is unlikely. The presence of the glow does, however, imply that photosynthesis is still possible in these sunless depths. Life forms do congregate around these vents. A curious shrimp found in the area where the glow was noted is eyeless but does possess photoreceptors on its back! (Dayton, Sylvia; "The Underwater Light Fantastic," New Scientist, p. 32, August 25, 1988. Also: Anonymous; "Mystery Glow Emanates from Ocean Bottom," Albuquerque Tribune, August 18, 1988. Cr. D. Eccles.) From Science Frontiers #60, NOV-DEC 1988 . 1988-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oceans from outer space?Back in SF#44, we related how L.A . Frank, at the University of Iowa, had detected dark spots on satellite images of the earth's dayglow. Frank thought that the spots might be due to clouds of water vapor released as small, icy comets hit the atmosphere. P. Huyghe has recently written more about Frank's discovery, his theory, and its reception by the scientific community. "These comets are not occasional visitors, he [Frank] says, like the one that comes by every 76 years and -- lucky for us -- never actually drops in. No, these are very small, cometlike objects that enter our atmosphere at a rate of 20 per minute, he says. These comets, which he believes must contain about 100 tons of water apiece, vaporize on impact with the atmosphere and fall as rain or snow. Now that may seem like one sizeable cold shower, but on a yearly basis he says it's actually only a tiny fraction of the annual preciptation. Then again, over a span of 4.5 billion years, which is about how old the earth is, that's enough water, he says -- trumpets blaring -- to create the oceans." Naturally, such a theory is very disturbing because it runs counter to the widely accepted idea that the oceans were created by the ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Slice Of Ocean Crust In Wyoming Tucked among Wyoming's Wind River Mountains is a region of exotic crustal rocks. The best explanation conventional geology has come up with is that they were formed some 2.5 billion years ago by geological processes not in operation today. G. Harper, however, thinks that these Wyoming rocks look very much like some of the slices of ocean crust (terranes) that continental drift's conveyor belt has plastered against North America's west coast. The conveyor belt is, of course, the ocean floor that dives under the continent. The more he looked, the more Harper was convinced that there, in the middle of the continent, was a substantial chunk of ancient ocean crust. The implications: continental drift and terrane plastering have been in operation for billions of years: ". .. from their very beginnings continents have been built up from the bits and pieces of plate tectonics." Some other geologists concur and point to similar rocks in northern Canada and around the Great Lakes. (Kerr, Richard A.; "Plate Tectonics Is the Key to the Distant Past," Science, 234:670, 1986.) Comment. If the continents have been slapped together in such a disorganized manner, have stratigraphy and geological dating been compromised? Reference. "Exotic" terranes are discussed in ESR9 in Inner Earth. Information on this catalog here . Pangaea circa ...
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... Science Frontiers ONLINE No. 46: Jul-Aug 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Curious Luminous Display Over The Pacific Ocean Our general policy admits only those phenomena described in the scientific literature, but here we must make an exception. This account, submitted by a retired Air Force colonel, is unlike anything we have found before -- either meteorological or auroral. "During the last week of August 1970, I was on a trip from Viet Nam to Clark AFB, Philippines. We were cruising at 9000 feet. We had departed Camron Bay between 2 and 3 AM. Upon reaching cruise altitude, I noticed a rather unusual display in the sky. Our magnetic heading from V.N . to Clark was approximately 155 . The display appeared on the horizon in an easterly direction. It consisted of a series of dashes perhaps the color of the moon with a south-to-north directional flow. There was no visible beginning of this display,such as you would see in a comet .. .. . "The awesome feature of this display was its magnitude. I thought if whatever was creating the display collided with our Earth, then we would no longer exist. I also feel that I was seeing only a small portion of the whole. As hindsight I can only regret that I did not report this sighting through Air Traffic Control channels. The crew discussed and speculated on what we had seen, then promptly forgot about it." The account continues, relating how on the next ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Strange Patterns In Another Oceanic Habitat The sea-floor vents and their unique assemblages of animals are just beginning to be explored. "Perhaps the most intriguing biological mystery in the vent area, however, was the finding of thousands of highly symmetric, Chinese-checkerboard-like patterns on the seafloor, which were first photographed several years ago. [P .] Rona thinks the patterns may be either an animal itself or the burrows made by an animal. He says the patterns are 'dead ringers for a 70million-year-old...trace fossil that is exposed in the Alps." (Weisburd, Stefi; "Hydrothermal Discoveries from the Deep," Science News, 130:389, 1986.) Thousands of such checkerboard patterns have been spotted on the seafloors. From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 46: Jul-Aug 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Salt structures on venus?The following quotation is the abstract of a paper appearing in the Bulletin of the American Association of Petroleum Geologists. "The discovery of a surprisingly high deuterium/hydrogen ratio on Venus immediately led to the speculation that Venus may have once had a volume of surface water comparable to that of the terrestrial oceans. We propose that the evaporation of this putative ocean may have yielded residual salt deposits that formed various terrain features depicted in Venera 15 and 16 radar images. "By analogy with models for the total evaporation of terrestrial oceans, evaporite deposits on Venus should be ar least ten to hundreds of meters thick. From photogeologic evidence and insitu chemical analyses, it appears that the salt plains were later buried by lava flows. On Earth, salt diapirism leads to the formation of salt domes, anticlines, and elongated salt intrusions -- features which have dimensions of roughly 1 to 100 km. Due to the rapid erosion of salt by water, surface evaporite landforms are only common in dry regions such as the Zagros Mountains of Iran, where salt plugs and glaciers exist. Venus is far drier than Iran; extruded salt should be preserved, although the high surface temperature (470 C) would probably stimulate rapid salt flow. Venus possesses a variety of circular landforms, ten to hundreds of kilometers wide, which could be either megasalt domes or salt intrusions colonizing impact craters. Additionally, arcuate bands seen in the ...
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... volcanoes, have appeared over islands along the coast of the Soviet Union during the past several years, baffling experts, who cannot explain what they are or what causes them. "The clouds dissipate in a few hours vanishing as mysteriously as they appear. "Among the plumes are a series of massive clouds that during the past four years have periodically swelled over Novaya Zemlya, the Arctic island long used by the Soviets for nuclear weapons tests. "However, there appears to be no correlation between the clouds and known Soviet tests, which are usually detected by Western governments. Further, non-governmental scientists said the 200-mile-long plumes appear to be many times larger than the largest conceivable nuclear explosion could produce." A NOAA satellite detected a large plume coming from the Arctic Ocean near Bennett Island, north of the Soviet Union, in 1983. Three distinct sources were found; one on the island and the other two about 9 miles offshore on the ice-covered ocean. This plume was 6 miles wide, 155 miles long, and 23,000 feet high. (Anonymous; "' Plumes' over Soviet Isles Continue to Baffle Experts," Las Vegas Sun, July 20, 1986. Cr. T. Adams via L. Farish) From Science Frontiers #49, JAN-FEB 1987 . 1987-2000 William R. Corliss ...
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... ., the Daisyworld model; by J.E . Lovelock. He defines Gaia in an early paragraph: "In the early 1970s, Lynn Margulis and I introduced the Gaia hypothesis. It postulated the earth to be a self-regulating system comprising the biota and their environment, with the capacity to maintain the climate and the chemical composition at a steady state favorable for life." L. Margulis is an author of Micro-Cosmos and a champion of evolution-via-endosymbiosis; that is, diverse organisms uniting to create new species. Going back to Lovelock's review, there is little that is anomalous on a small scale. Of course, on a large-scale, the data supporting the concept of life-as-a -whole manipulating the atmosphere, oceans, etc., to perpetuate and perhaps improve itself are highly anomalous, because the Gaia hypothesis is far out of the scientific mainstream. (Lovelock, James E.; "Geophysiology," American Meteorological Society, Bulletin, 67:392, 1986.) Comment. Our secret purpose here is to use the Lovelock article as an excuse to out-Gaia Gaia! Lovelock's article plus those preceding on Martian life, cosmic life, "geocorrosion," etc., made us wonder if Gaia as a closed terrestrial system (see diagram), is not too limited. If Hoyle and Wickramasinghe are correct, the diagram should have a box labelled "outer space," with an inwardly directed arrow carrying life-forms (Hoyle's space viruses and bacteria) ...
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... Science Frontiers ONLINE No. 41: Sep-Oct 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Green Sky Flashes March 25, 1984. Indian Ocean. "Two successive 'green flashes' were observed. The first, at 2100 Ship's Time or 1530 GMT, was a bright green and bore 240 at an altitude of 75 ; it moved vertically downwards to an altitude of approximately 20 over a period lasting about 3 seconds. The second flash was observed at 2250 Ship's Time. It was green/white and was first observed at an altitude of 40 , bearing approximately 340 .It moved diagonally across the sky before disappearing behind low cloud at an altitude of 30 , bearing 310 . This time the duration was 1-2 seconds. In both cases the ship's radars were turned on but nothing was observed other than rain showers between 4 and 12 n. mile from the ship, mainly forward of the beam. Both flashes were of about the same brightness as that of lightning, the first being brighter than the second. In both cases it was difficult to judge the distance. The phenomenon was thought to have possibly been some form of lightning as its appearance was unlike that of any flare and in both cases the distance from the ship did not appear great enough to be compatible with a meteor or other object entering the earth's atmosphere." (Aston, A.; "' Green Flashes'"; Marine Observer, 55:30, 1985.) Comment. ...
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... 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 Two Snowflake Anomalies Rarely is there anything in the scientific literature suggesting that anything about snowflakes could possibly be mysterious. Surprisingly, two articles on snowflake anomalies have appeared recently. To form at all above -40 F, snowflakes supposedly require a solid seed or nucleus around which ice can crystallize -- or so scientists have assumed for many years. It was long believed that airborne dust, perhaps augmented by extraterrestrial micrometeoroids, served as the necessary nuclei. But cloud studies prove that there are about a thousand times more ice crystals than dust nuclei. Now, some are convinced that bacteria blown off plants and flung into the air by ocean waves are the true nuclei of atmospheric ice crystals. Remember this the next time you tast a handful of snow! (Carey, John; "Crystallizing the Truth," National Wildlife, 23:43, December/ January 1985.) Comment. The possibility that the fall of snow and all other forms of precipitation is largely dependent upon bacter-ia brings to mind the Gaia Hypothesis; that is, all life forms work in unison to further the goals of life. The second item is from Nature and is naturally more technical. After reviewing the great difficulties scientists are having in mathematically describing the growth of even the simplest crystal, the author homes in on one of the fascinating puzzles of snowflake growth: "The aggregation of particles into a growing surface will be determined exclusively by local ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Chain of crevicular habitats?Towards the end of an article on the eerie blue holes of the Bahamas appears this intriguing paragraph: "William Hart, of the Smithsonian Institution, and Tom Iliffe, of the Bermuda Biological Station, believe that blue holes are one link in a chain of crevicular habitats -- caves, fissures, rocks of the sea floor -- that stretches from one side of the ocean to the other, from the Americas, across the sea floor and the Mid-Atlantic Ridge, to Africa and the Mediterranean. Related Amphipods are not only found in Bahamian caves but in marine caves in Bermuda, the Pacific, and the Yucatan Peninsula." (Palmer, Robert; "In the Lair of the Lusca," Natural History, 96:42, January 1987.) Comment. With this, the vision arises of an earth-girdling, biologically and geologically connected stratum of life that we know next to nothing about. How porous is the earth's crust, and how far down in these pores and interstices does life survive? From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... the work of walruses digging for clams. (Nelson, C. Hans, and Johnson, Kirk R.; "Whales and Walruses as Tillers of the Sea Floor," Scientific American, 256:112, February 1987.) Comment. The whale tale seems a reasonable explanation of the pits described by Nelson and Johnson, but how far in time and space can it be stretched? Whales do frequent the North Sea, but we do not know whether they or methane eruptions excavate the many craters observed there. As for the much larger Carolina Bays, which exist by the thousands in sandy, coastal terrain, who can say without further study. The Carolina Bays, like the whale-made pits of the Bering Sea, are oriented. One can imagine that, when the oceans stood higher, whale pits were subsequently enlarged by swift currents. See our catalog Carolina Bays, Mima Mounds for more on seafloor craters and the Carolina Bays. For ordering information, visit: here . Craterlets detected by sonar on the floor of the North Sea, as described in Unknown Earth. From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... Discovered In Florida A new bond bed has been discovered south of Tampa. Paleontologists say it it is one of the richest fossil deposits ever found in the United States. It has yielded the bones of more than 70 species of animals, birds, and aquatic creatures. About 80% of the bones belong to plains animals, such as camels, horses, mammoths, etc. Bears, wolves, large cats, and a bird with an estimated 30-foot wingspan are also represented. Mixed in with all the land animals are sharks' teeth, turtle shells, and the bones of fresh and salt water fish. The bones are all smashed and jumbled together, as if by some catastrophe. The big question is how bones from such different ecological nitches -- plains, forests, ocean -- came together in the same place. (Armstrong, Carol; "Florida Fossils Puzzle the Experts," Creation Research Society Quarterly, 21:198, 1985.) From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Night Of The Polar Dinosaur Somewhere west of Deadhorse, a small town on Prudhoe Bay in northern Alaska, paleontologists have found the bones of at least three species of dinosaurs. But wait, the latitude there is 70 north today and according to magnetic measurements of the rocks, it was about the same when the dinosaurs met their demise. At these high latitudes the dinosaurs either had to contend with two months of darkness each year or they had to migrate many hundreds of miles over the rough Alaskan landscape. The visions of dinosaurs groping for tons of vegetable food in the polar night is about as incongruous as imagining them trekking down to the Lower 481 Scientists are now maintaining that these dinosaurs did prosper on the shore of the Arctic Ocean, even in the dark, because the climate then was semitropical or temperate. This was because the earth's climate was more equable or uniform. They are, however, surprised by the lack of mineral deposition in the dinosaur bones, which look rather "mode m". (Anderson, Ian; "Alaskan Dinosaurs Confound Catastrophe Theorists, " New Scientist, p. 18, August 22, 1985. ) (The apparent survival of dinosaurs during two months of darkness is being used as an argument against asteroidal catastrophism, which it is claimed wiped out the dinosaurs with a long-lived dust cloud that blocked the sun. WRC) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
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... occurred in the Archaean, is in a hydrothermal system. Only in such a setting would the necessary basic components (CH4 , NH3 , and phosphates) be freely available. Suitable pH (fluctuating around 8) and temperatures around 40 C are characteristic of hydrothermal systems on land. Furthermore, altered lavas in the zeolite metamorphic facies, which are rich in zeolites, clays and heavy metal sulphides, would provide catalytic surfaces, pores and molecular sieves in which RNA molecules could be assembled and contained. If the RNA could then replicate with the aid of ribozymes and without proteins, the chance of creating life becomes not impossible but merely wildly unlikely." The article concludes with a statement that self-replicating molecules synthesized in hydrothermal systems would be pre-adapted to "life" in the open ocean if they "learned" to surround themselves with bags of lipids. (Bag of lipids = a membrane.) (Nisbet, E.G .; "RNA and Hot-Water Springs," Nature, 322:206, 1986.) It just so happens that D.W . Deamer, University of California, Davis, has now found that the 4.5 -billion-year-old Murchison meteorite from Australia contains lipid-like organic chemicals that can self-assemble into membrane-like films. His paper was presented before the International Society for the Study of Origins of Life. (Raloff, J.; "Clues to Life's Cellular Origins," Science News, 130:71, 1986.) Comment. Strange that the earth should ...
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... , Ayres described Nan Madol in these terms: "To withstand time and the sea, the artificial platforms were built in a staggeringly laborious process. Multiton basalt columns, formed by volcanic activity, were stacked horizontally, log-cabin style, to form outer walls. The inside was then filled with coral rubble to form a dry surface several feet above high-tide level. Radiocarbon testing finds signs of human habitation at Nan Madol as early as A.D . 500, and the megalithic construction was completed by about 1500." Besides incongruity and a certain bizarreness, Nan Madol does pose several problems: How were the huge, very heavy prismatic columns of basalt quarried and transported? Why was Nan Madol built at all? Why about 1400 AD did the inhabitants stop building their massive ocean-going canoes and begin a decline? (Hanley, Charles J., "Oregon Anthropologist Unravels Story of Lost City of Pacific," The Oregonian, February 3, 1986. Cr. D.A . Dispenza.) Comment. An associated question asks why the builders of Nan Madol, the Maya, the Hohokam, the Moundbuilders, and other cultures all decline so precipitously at about the same period? See the accompanying article on the bubonic plague. Reference. For more on Nan Madol, see our catalog Ancient Man. It is described here . A portion of "temple" at Nan Madol. It is contructed from natually occurring basalt prisms. (Courtesy Bishop Museum; also from Ancient Man). From Science Frontiers #45, MAY-JUN 1986 . 1986 ...
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... 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 ...
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... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Points Of Great Impact Geologists have been searching in vain for a large crater that might account for the biological extinctions at the Cretaceous-Tertiary boundary some 65 million years ago. C.J .H . Hartnady believes he had found the culprit. It is somewhat larger than expected (300 kilometers in diameter instead of 100200), but it is of the right age. Supporting this notion is the observation that the Seychelles Bank and Madagascar suddenly shifted their locations at about this time. (Murray, M.; "Point of Impact: The Indian Ocean," Science News, 129:356, 1986.) The existence of another terrestrial cat aclysm at an earlier date is suggested by a layer of shattered crustal rock fragments stretching over at least 260 kilometers in South Australia. Folded within Precambrian marine shales, these fragments reach 30 centimeters in diameter and show evidence of vertical fall. Evidence points to an origin near Lake Acraman, about 300 kilometers west. (Gostin, Victor A., et al; "Impact Ejecta Horizon within Late Precambrian Shales, Adelaide Geosyncline, South Australia," Science, 233:198, 1986.) Reference. The subject of very large terrestrial craters is discussed in ETC2 in our catalog: Carolina Bays, Mima Mounds. Description here . The Amirante Basin (black circle) lies about 500 kilometers north-east of Madagascar. From Science Frontiers #47, SEP-OCT ...
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... same from individual to individual strongly suggests that feces are the primitive condition. The variety of animal bodies, on the other hand, implies that bodies are secondary or derived features of the organisms. The expansion of genetic research in the twentieth century has led to the conclusion among many geneticists that bodies exist solely for the propagation and dispersal of genes. This perspective has been dubbed 'the selfish gene theory'. While the author acknowledges the insight and creativity that went into the selfish gene theory, it must be pointed out that the idea has not been carried far enough by the geneticists. Where did the genes come from in the first place? Who ever heard of a sea bottom made up of DNA ooze? It is obvious from the fossil data that feces were teeming in the Precambrian oceans well before DNA appeared on the face of the earth, and that feces were therefore the original driving force of life. Bodies exist for the propagation and dispersal of feces, and genes are simply the instructions used by feces in the manufacture of those bodies. This concept is best described as the 'selfish feces theory'." (Sager, J. Curt; "The Origin of Feces," Journal of Irreproducible Results," p. 20, 1986.) From Science Frontiers #46, JUL-AUG 1986 . 1986-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf046/sf046p14.htm
... Science Frontiers ONLINE No. 32: Mar-Apr 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Ocean Full Of Viruses "A decade ago, veterinarian Alvin Smith, now at Oregon State University, found that a virus causing lesions and spontaneous abortions in California sea lions was 'indistinguishable' from one that ravaged pigs nationwide in 1952. New varieties of the culprit -- called a calicivirus -- have since turned up in diverse hosts: whales, cats, snakes and even primates. To reach such a variety of hosts, they either jump from organism to organism, Smith proposes, or they escape from bubbles popping on the ocean surface, waft ashore and enter a food chain. If he is right, the seas may be a bottomless reservoir for viruses -- and our attempts to combat diseases on land may be nullified by legions of new strains waiting to come ashore. In fact, some flu viruses are said to be spread by wild ducks." (Anonymous; "Are the World's Oceans a Viral Breeding Ground," Science Digest, 92:20, February 1984.) Comment. We leave it to the reader to fit this piece of the jigsaw to the preceding and following pieces. From Science Frontiers #32, MAR-APR 1984 . 1984-2000 William R. Corliss ...
Terms matched: 1 - Score: 89 - 15 May 2017 - URL: /sf032/sf032p06.htm
