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... . "The enormous diversity of the microbiological communities in deep terrestrial sediments is most striking. The organisms vary widely in structure and function, and they are capable of transforming a variety of organic and inorganic compounds. Regardless of the depth sampled, the microorganisms were able to perform the cycling of carbon, nitrogen, sulfur, manganese, iron, and phosphorous. Although the organisms were not of the same physiological types, each niche contained a basic cast of microbiological players capable of these nutrient transformations. Such versatility is surprising, and contrary to traditional thinking in soil microbiology, because the deep subsurface is presumably a nutrientlimited environment where photosynthesis and photosynthates are not abundant." The scientists writing this article speculate that similar microorganisms could well be prospering far below the Martian surface, where they are sheltered from radiation and the cruel surface environment. (Fliermans, Carl B., and Balkwill, David L.; "Microbial Life in Deep Terrestrial Subsurfaces," Bio Science , 39: 370, 1989.) From Science Frontiers #65, SEP-OCT 1989 . 1989-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 125: Sep-Oct 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Leonid Luminosity Puzzle Around November 17 every year, meteorwatchers strain to see the Leonids dart through the night sky. The Leonids are meteors that radiate from a point in the constellation Leo. The millimeter-size bits of debris that create this annual light show are tiny fragments discarded by the comet Temple-Tuttle that burn up high in the atmosphere. Astronomers are secure and comfortable with this explanation of the mid-November spectacle. Perhaps they shouldn't be. In November 1998, an intriguing anomaly cropped up -- way up, 120 miles up! Leonids were seen to burn up at this altitude where there is not enough atmosphere to create the friction required to vaporize the space debris. Perhaps the cometary fragments from comet Temple-Tuttle are unusually volatile. Perhaps there is something else going on at the outer fringes of the atmosphere. Who knows? (Witze, Alexandra; "Scientists Gain Insights into Meteors," Northwest Florida Daily News, May 27, 1999. Cr. B. Reid) Comments. Sometimes, comets flare up so far from the sun that solar heating is negligible. This poorly understood phenomenon may be related to the highaltitude flare-ups of the Leonids. Some people claim they can sometimes hear meteors hiss as they streak through the sky at altitudes so high that there is not enough air to convey sound! Such "electrophonic sounds" may have an electromagnetic origin; that is, some ...
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... fossil meteorites has been found in a limestone quarry at Kinnekulle, in southern Sweden. "During the sawing of a few thousand cubic meters of Ordovician limestone into 2-3 cm thick slices, 25 fossil meteorites have been found. All meteorites, except, four, have been found in a 60 cm thick bed called the Archaeologist. This bed represents a few hundred thousand years and contains several hard ground surfaces...Many of the Archaeologist meteorites are prominently angular in shape whereas others are round. This seems difficult to reconcile with an atmospheric breakup of a single large meteorite." B. Schmitz and M. Tassinari, the authors of this paper, suggest that this rare concentration of fossil meteorites represents an unusual event in the solarsystem history, possibly a major collision in the asteroid belt. (Schmitz, Birger, and Tassinari, Mario; "Early Ordovician Meteorites: How Many Falls?" Eos, 79:F50, 1998.) Comment. It should be added that tektites and microtektites (impact debris) are likewise found mainly in recent, superficial deposits, even though many ancient impact craters are now recognized on earth. From Science Frontiers #125, SEP-OCT 1999 . 1999-2000 William R. Corliss ...
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... are found deep inside the earth's crust and, seemingly, just about anywhere one cares to look. Now, let's see how ridiculous one can get: Magnetic bacteria and/or their fossils contribute heavily to the magnetic properties of sedimentary rocks and unlithified sediments, such as deep-sea sediments. In fact, magnetostratigraphy and paleomagnetism in general may be based upon bioartifacts and be suspect. Magnetic bacteria and/or their fossils are present in such immense numbers deep in the crust that they contribute significantly to the earth's magnetic field. They "might" even be responsible for most of it, including its his torical behavior. Magnetic bacteria, as agents of Gaia, actually constructed the earth's magnetic field for the specific purpose of erecting a shield against space radiation, and thereby allowing the development of more complex life forms on the planet's surface. Imagine the consequences if any one of the above speculations is even close to the mark! From Science Frontiers #68, MAR-APR 1990 . 1990-2000 William R. Corliss ...
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... the air. A pickup truck, parked near the house, was covered with dirt. Two of its tyres were flat, and the hubcaps were lying on the ground. Strange trenches and tracks had appeared in the surface of the parking area. These trenches led Mr Shelhamer to a hickory tree, about 20m from the house. On it a 10cm scar had appeared, spiralling up the trunk toward the sky. A few minutes earlier it had begun to rain, and all this was the result of the lightning strike. "Perhaps the most extraordinary aspect of this lightning strike was the way the currents flowing from the hickory tree along the surface of the ground apparently leapt out of the ground in places to pass through the automobiles parked in the parking area. Two of the trenches that radiated from the tree ended at an automobile, but reappeared at the opposite side or end of that automobile, where they either terminated in a crater, or continued tracking on. One of these trenches tracked through two automobiles that were parked side by side." (Jonasson, H.H ., et al; "Unusual Effects of a Lightning Ground Strike," Weather, 44:366, 1989.) Comment. Electrical currents are supposed to follow the path of least resistance. How did all three vehicles in the parking area end up on paths of least resistance? Some of the phenomena observed can be accounted for by vapori zation of moisture in the ground, but what popped those hubcaps off? Reference. A wide variety of lightning "idiosyncracies" are cataloged in GLL ...
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... of the temperature existing several feet below the surface of a distant planet. Scrutinizing Mercury with their big electronic "ears," they have found two spots on the plamet where the temperatures are several hundred degrees higher than in the surrounding areas. Actually, these hot spots are easy to understand; because, to a Mercurian, the sun comes to a stop in the sky over one of these points and then moves backwards to the other point 180 away. As the sun tarries over these two spots, it heats them preferentially. The strange apparent motion of the sun is due to the 3:2 ratio between Mercury's period of revolution around the sun (88 days) and its axial spin period (59.6 days). What is surprising is that the energy detected radiating from the two hot spots is all reradiated solar energy; that is, there seems to be no contribution at all from Mercury's core! If no heat is leaking out of Mercury's core, the core itself is very likely solid. If it is solid, it cannot establish convection cells and thus generate a magnetic field through dynamo action. But back in 1975, the Mariner 10 spacecraft radioed back that Mercury actually does possess a magnetic field, and a surprisingly large one at that. (Wilford, John Noble; "Theory of Mercury's Hot Poles Is Shown to Be a Fact," New York Times, June 13, 1990. Cr. J. Covey.) Comment. Something is clearly awry. This inconsistency could mean that the dynamo theory ...
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... in artifacts and in other exposed materials including cherts, sediments, and the entire landscape. These neutrons necessarily transmuted residual nitrogen (14N) in the dated charcoals to radiocarbon, thus explaining anomalous dates. Some North American dates may in consequence be as much as 10,000 years too young. So, we are not dealing with a trivial phenomenon! Supporting evidence. Four main categories of supporting evidence are claimed and presented in varying degrees of detail. Anomalously young radiocarbon dates in north-central North America. Example: the Gainey site in Michigan. Physical evidence of particle bombardment. Example: chert artifacts with high densities of particle-entrance wounds. Anomalous uranium and plutonium abundance ratios in the affected area. Tree-ring and marine sediment data. The authors claim that the burst of radiation from a nearby supernova, circa 12,500 years ago, not only reset radiocarbon clocks but also heated the planet's atmosphere, melted ice sheets, and led to biological extinctions. If verified, the claimed phenomenon would also "reset" archeological models of the settlement of North and South America. To illustrate, we may have to add as many as 10,000 years to site dates in much of North America! (Firestone, Richard B., and Topping, William; "Terrestrial Evidence of a Nuclear Catastrophe in Paleoindian Times," The Mammoth Trumpet, 16:9 , March 2001. Cr. C. Davant III. This off-mainstream journal is published by the Center for the Study of the First Americans, 355 Weniger Hall, Oregon State University ...
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... J. Gribbin, whose article begins with the above paragraph, is quick to proclaim that this "theory of everything" is not just silly-season kite flying. Rather, it was proposed by A.P . Trofimenko in the well-respected Astrophysics and Space Science (168:277) Restricting ourselves to speculations concerning the earth, Trofimenko sees our planet as a sphere of low-density material enclosing 126 mini black holes that account, first, for the many gravity anomalies we measure on the surface; and, second, the earth's high density. That's right, there's no iron core in this model! Some of the mini black holes near the surface create local hot spots (plumes, volcanos, etc.) through the emission of Hawking radiation. Trofimen-ko's scheme encompasses the planets, the stars, and, as advertised, "every thing." (Gribbin, John; "Could Mini Black Holes Provide a 'Theory of Everything?'" New Scientist, p. 25, September 1, 1990.) From Science Frontiers #72, NOV-DEC 1990 . 1990-2000 William R. Corliss ...
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... at hydrothermal vents was penned by an oceanographer. Astronomers, it seems, prefer different scenarios. C. Chyba and C. Sagan, in a major review article in Nature, see a two-fold problem: (1 ) identifying the source of the raw materials; and (2 ) identifying the source(s ) of energy required for the synthesis of complex organic chemicals. First, they point to the steady drizzle of tiny, organic-rich particles drifting down to earth from cometary debris. These particles, which even carry spacesynthesized amino acids down to the earth's surface, seem likely chemical precursors of life. However, the atmosphere is also a potential source of prebiotic chemicals -- providing energy sources are available. Chyba and Sagan suggest as sources: lightning, ultraviolet radiation, and the shock energy derived from meteorite/asteroid/comet impacts. Together these energy sources, especially ultraviolet light, might synthesize thousands of tons of complex organic compounds each year. (Chyba, Christopher, and Sagan, Carl; "Endogenous Production, Exogenous Delivery and Impact-Shock Synthesis of Organic Molecules: An Inventory for the Origins of Life," Nature, 355:125, 1992. Also: Henbest, Nigel; "Organic Molecules from Space Rained Down on Early Earth," New Scientist, 2. 27, January 25, 1992.) Comment. Little is said in either of the above articles about the nature of and impetus for that final elusive step from organic chemicals to the simplest life forms. Everyone assumes that it happened, but did it? ...
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... says T. Gold, an iconoclastic Cornell physicist, life began in rocky fissures deep down in the earth's crust. The idea is not as unlikely as it sounds. Look at the most primitive life forms we know, the archaebacteria. They like heat, need neither air nor sunlight, and prosper on sulfur compounds for sustenance. Such bacteria are today found in boreholes as deep as 500 meters, in thermal springs, and around deepsea vents. Gold surmises that these archaebacteria migrated to the surface long ago, where they evolved into higher forms of life. "Gold argues, moreover, that the earth's interior would have provided a much more hospitable environment for proto-life four billion years ago than the surface would have, ravaged as it was by asteroids and cosmic radiation. And if life emerged within the earth, then why not within other planets? 'Deep, chemically supplied life,' Gold says, 'may be very common in the universe.'" (Horgan, John; "It Came from Within," Scientific American, 267:20, September 1992.) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
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... paints an ominous future. The earth's retinue of mini-asteroids. "Asteroids as big as houses pass near the Earth 100 times more often than anyone suspected. On an average day, about 50 asteroids measuring at least 10 metres across come closer to the Earth than the Moon, and each year about five such objects may hit the planet." (Second reference below.) These startling data come from D. Rabinowitz and coworkers at the University of Arizona, who have been scanning nearby space with a telescope fitted with supersensitive charge-coupled devices (CCDs). They have picked up astronomical objects that have escaped conventional instruments. Several sources have been suggested for this unexpected, threateningly large population of small asteroids: (1 ) debris hurled earthward from collisions within the asteroid belt located between Mars and Jupiter; (2 ) the breakup of a large object formerly in orbit about the earth; and (3 ) fragments blasted off the moon by impacts of large asteroids there. (Kerr, Richard A.; "Earth Gains a Retinue of Mini-Asteroids," Science, 258: 403, 1992. Also: Mitton, Simon; "HouseSized Asteroids Home In on the Earth," New Scientist, p. 16, October 31, 1992.) Comet Smith-Tuttle. At a conference in Sydney last October, astronomer D. Steele announced that comet SmithTuttle is heading towards a possible impact with earth on August 14, 2116. This 3.1 -mile-diameter chunk of ice would have the destructive power of 20 million megatons ( ...
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... No. 108: Nov-Dec 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Glow Below Is there such a thing as sunless photosynthesis? Did photosynthesis evolve at the earth's surface or deep in the oceans near hydrothermal vents? Such questions are engendered by the strength of the mysterious glow that emanates from these deep-sea vents. It is at these cracks in the ocean floor that very hot, mineralladen water gushes forth, and where colonies of bizarre tube worms, blind shrimp, and hyperthermophilic (high temperature-loving) bacteria thrive. (For details, see SF#60 or p. 238 in Science Frontiers, the book) The first anomaly is the strength of the glow itself. It is not all thermal radiation emitted by the 350 C water spewing forth from the vents; in fact, it is 19 times more intense than expected from theory. Something else is contributing energy, but no one knows what it is so far. The unexpected intensity of the vent glows also asks some provocative questions of the biologists: Is the glow strong enough to sup port photosynthesis? Quite likely, seems to be the answer. Are life forms in the vicinity of the vents employing photosynthesis? We don't know yet, but some bacteria do photosynthesize. Might not life and perhaps photo synthesis, too, have originated at the vents rather than on the planet's surface? This is an attractive possi bility, because very early in the earth's history the surface was con tinually blasted by ...
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... Science Frontiers ONLINE No. 43: Jan-Feb 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Treasures In A Toxonomic Wastebasket The Burgess Shale, in British Columbia, ia all that is left of a Middle Cambrian mudbank that adjoined a massive algal reef. Here, many "experimental" forms of life prospered and succumbed. The Burgess Shale is probably the world's greatest depository of fossils of softbodied creatures. Quoting Stephen Jay Gould: "The Burgess (fortunately for us) occupies a crucial time in life's history. It represents our only 'window' upon the first great radiation of complex life on earth. All but one or two modern phyla originated in a burst of evolutionary activity associated with the so-called Cambrian explosion some 570 million years ago. The Burgess provides our only peek at the soft-bodied forms of this first flowering. All other soft-bodied fossil assemblages are much younger; they represent faunas well past the initial burst and sorting out of Cambrian times." The morphological diversity of the Burgess Shale, incorporating many bizarre forms of life, represents a true biological revolution. Here are found a dozen genera that do not fit into any modern phylum. Most of the novelties never survived into modern times. (Gould, Stephen Jay; "Treasures in a Taxonomic Wastebasket," Natural History, 94:24, December 1985.) Comment. Somewhere on today's earth, there must be mudbanks washed by nutrient-rich waters and bathed in tropical sunlight. Is some ...
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... have recently lost their wives to breast cancer have immune systems less responsive to mitogens. (Journal of the American Medical Association, 250:374, 1984.) (Maddox, John; "Psychoimmunology Before Its Time," Nature, 309:400, 1984.) Comment. This is an appropriate time to suggest that "psychoevolution" may be physiologically possible. If the brain can fight disease and even control cell growth, why not a role for the mind in stimulating the development of new spe cies, perhaps in response to extreme environmental pressures, and perhaps not on the conscious level? The body's sensory system would detect great external stresses, the brain would process the information, and direct some astute genetic shuffling. The genetic inheritance of an organism is not sacrosanct. Radiation, chemicals, and various others mutagens are recognized. There seems to be no a priori reason why the brainbody combination cannot generate mutagens -- possibly not randomly but intelligently! (We ignore here selfish DNA and Sheldrake's morphogenic fields.) Does this mean that if we wish to mutate, we can? Well, it's probably not as simple as wishing warts away, but Maddox's editorial underscores the complexity and subtlety of the brain-body combination. From Science Frontiers #35, SEP-OCT 1984 . 1984-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 89: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why do electric fish swim backwards?This is not a trick question like the one about the chicken crossing the road. To understand the answer to the electric fish puzzle, we must restrict the discussion to those fish with active electric sensing systems. This group includes electric eels, South American knife fish, and African elephant snout fish. All of these have evolved, in a remarkable instance of parallel evolution, the capability of generating pulses of electricity. These pulses (up to 1,000 per second) radiate through the surrounding water. Prey and other nearby objects distort these oscillating electric fields. Electroreceptors on the fish and a sophisticated data processing system convert the field distortions into an "image" of the surroundings. M. and S.J . Lannoo, of Ball State University, have watched the black ghost knife fish, which plies murky Amazon waters, approach likely prey tail first. Swimming backward using an elongated belly fin, the knife fish slowly cruises past its potential victim. If the electrical image looks appetizing, the knife fish grabs its dinner with a forward lunge as it appears in front of it. "The researchers suggest that the fish swims past objects in order to scan them with its electroreceptors. This is the only way the fish can identify prey because an electric sense cannot be focussed like an eye. But if the fish carried out its scan by swimming forwards, the prey would end up ...
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... s pigments detect a lot of infrared, the plant "thinks" that it may be crowded out by competing vegetation. The tomato plant responds aggressively by growing more rapidly. The red plastic mulch between the rows also reflects a lot of infrared light, and it thereby tricks the tomato plant into accelerating its growth. (Raloff, Janet; "When Tomatoes See Red," Science News, 152:376, 1997.) Fire-detecting beetles. The beetle Melanophila acuminata seeks out forests that have just been ravaged by fires so that it can lay its eggs in the nutritious, freshly burnt wood. These insects are capable of detecting fires up to 32 kilometers (20 miles) distant. They do not see the fire with their eyes but instead detect the thermal (infrared) radiation with a special organ on their chests. (Schmitz, Helmut, et al; "Infrared Detection in a Beetle," Nature, 386:773, 1997.) Knees "see". Well, sort of, and then only the backs of the knees. Human circadian clocks can be shifted by shining visible light on the skin on the backs of the knees. It is theorized that the light penetrates the skin and causes chemical changes in the blood, implying that human blood contains "chronobiological photoreceptors." (Oren, Dan A., and Terman, Michael; "Tweaking the Human Circadian Clock with Light," Science, 279:333, 1998. Also: Campbell, Scott S., and Murphy, Patricia J.; "Extraocular Circadian Phototransduction in ...
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... Science Frontiers ONLINE No. 34: Jul-Aug 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sunspots And Disease Six of the major influenza epidemics, at least as far back as 1917, were synchronized with the sunspot cycle. Fur-thermore, all but one of these epidemics involved an antigenic shift, wherein the flu virus developed a new coat of protein, which made it resistant to the immunities the population had built up over the years. There is no known mechanism by which solar activity can abet virus evolution, except penetrating radiation, which is inherently destructive. Lowered human immunity may also be a consequence of solar activity, according to Solco W. Tromp, director of the Biometeorological Research Center in the Netherlands. Over 30 years of research, using blood data from 730,000 male donors, led Tromp to the conclusion that the blood sedimentation rate varies with the sunspot cycle. Since this rate parallels the amount of albumin and gamma globulin, resistance to infection may also follow the lead of the sun. (Freitas, Robert A., Jr.; "Sunspots and Disease," Omni, 6:40, May 1984.) From Science Frontiers #34, JUL-AUG 1984 . 1984-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 33: May-Jun 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mystery cloud of ad 536 "Dry fogs appear in the atmosphere when large volcanic eruptions inject massive quantities of fine silicate ash and aerosol-forming sulphur gases into the troposphere and stratosphere. Although the ash gravitationally settles out within weeks, the aerosols spread around the globe and can remain suspended in the stratosphere for years. Because solar radiation is easily absorbed and backscattered by the volcanic particles, a haziness in the sky and a dimming of the Sun and Moon are produced. Very dense and widespread dry fogs occur, on the average, once every few centuries. The sizes and intensities of some of the largest of them before the modern scientific era have been estimated by several indirect methods. The densest and most persistent dry fog on record was observed in Europe and the Middle East during AD 536 and 537. Despite the earliness of the date, there is sufficient detailed information to estimate the optical depth and mass of this remarkable stratospheric dust cloud. The importance of this cloud resides in the fact that its mass and its climatic consequences appear to exceed those of any other volcanic cloud observed during the past three millenia. Although the volcano responsible remains a mystery, a tropical location (perhaps the volcano Rabaul on the island of New Britain, Papua, New Guinea) can be tentatively inferred." (Stothers, R.B .; "Mystery Cloud of AD 536," Nature, 307:344, 1984.) Comment ...
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... Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cassowary, 1; Automobile, 0 Many birds are done in by fast-moving cars. The usual avian mode of retaliation involves defecation, especially on freshly washed and polished automobiles. On occasion, though, birds will use brute force. For example, keas (New Zealand parrots) consider it their duty to pry out the rubber gaskets around automobile windshields with their powerful bills. A cassowary can be even more forceful. Recently, a motorist near Cairns, Australia, was forced to stop by a sixfoot cassowary standing in the middle of the road. He edged the car forward slowly, but the huge bird stood its ground. Then, he blew his horn. Bad move! The cassowary objected by kicking the auto, pushing the radiator into the fan, which cut a hole in it. (Anonymous; "Feedback," New Scientist, p. 104, June 13, 1998.) Comment. The flightless cassowaries are armed with sharp toenails, with which they disembowel New Guinea natives who displease them. Besides disposing of obstreperous automobiles, cassowaries are said to catch fish by wading into streams, spreading out their wings, waiting, and then closing them on sheltering fish. (From: Biological Anomalies: Birds). From Science Frontiers #119, SEP-OCT 1998 . 1998-2000 William R. Corliss ...
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... emit much more energy than they receive from the sun. Natural nuclear reactors could be the reason. Stellar thermonuclear ignition . Astronomers assume that the high temperatures required to ignite the thermonuclear reactions powering stars come from gravitational collapse, but this source does not seem adequate to some scientists. Nuclear fission reactors could ignite stars just as they do H-bombs. Missing matter . Natural nuclear reactors are finicky. There may be many star-sized, non-luminous objects out there that were never ignited and that we cannot see through our telescopes. (Herndon, J. Marvin; "Examining the Overlooked Implications of Natural Nuclear Reactors," Eos, 79:451, 1998.) Comments. Two additions to Herndon's list. Evolution of terrestrial life . Nuclear reactors produce copious mutagenic radiation. They could have accelerated the evolution of life, especially during the Cambrian Explosion. (See SF#32) Thermal plumes . Deep-seated natural nuclear reactors may create the thermal plumes said to be responsible for such surface hot spots as Iceland and Hawaii. Disposition of six of the Oklo 2-billion-year-old natural nuclear reactors. (From: Anomalies in Geology). From Science Frontiers #121, JAN-FEB 1999 . 1999-2000 William R. Corliss ...
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... Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Apathy And Cancer Doctors have frequently observed that the "will to survive" is important in controlling the progression of serious diseases. Most of the evidence linking the patient's mood with recovery from illness is anecdotal -- little wonder since mood is hard-to-measure. Some statistical evidence has recently been accumulated by S.M . Levy and R. Herber-man of the National Cancer Institute; but the situation still seems complex at best. From a study of 75 women with breast cancer, there appears to be a significant and involved relationship between age, the body's immune function, and a psychological factor called "fatigue." One clear-cut finding was that young patients facing radiation therapy and also reporting high levels of psychological fatigue were the only patients in the surveyed group showing diminished activity by the body's natural killer cells. These killer cells com-prise an important part of the defense against cancer. This biological consequence of apathy is confirmed by an-other study showing that cancer patients with "psychological distress" had better chances of recovery than those who had no "fight." (Herbert, W.; "Giving It Up -- At the Cellular Level," Science News, 124:148, 1983.) Comment. Assuming such mind-body correlations are real, how is mental attitude (supposedly some pattern of nerve signals in the brain) converted into greater or lesser populations of natural killer cells? From Science Frontiers #30 ...
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... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cooler heads, bigger brains?When anthropologist D. Falk discovered that an automobile's engine was limited in power by its radiator's capacity to cool it, he applied this thinking to the human brain. The human brain, like the automobile engine, must be kept cool if it is to function well. It follows that if the brain of an animal is not functioning well, the body that brain controls will not perform well either. Overheated brains, then, are sure roads to extinction in the highly competitive natural world. A couple million years ago, two groups of human precursors were competing for dominance in Africa. The group that won and subsequently evolved into Homo sapiens had, according to Falk, a better brain-cooling system. The evolutionary development that probably led to this advantage was a more extensive network of emissary veins, which permitted better dissipation of heat. This, in turn, allowed the evolution of larger brains and dominance by Homo sapiens. Other anthropologists, how ever doubt that such a minor change in the circulatory system could account for the emergence of modern man. (Shipman, Pat; "Hotheads," Discover, 12:18, April 1991.) Comment. What an intriguing concept! Perhaps human male baldness also confers more cooling efficiency and is setting the stage for a new expansion of the human brain -- at least the male brain, sorry girls! More seriously ...
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... Issues This Issue Sourcebook Project Sourcebook Subjects A BIG VOID IN SPACE OR A DEFECTIVE YARDSTICK?R. Kirshner and colleagues have discovered an immense void almost completely devoid of galaxies. Smaller voids have been found in other surveys of the heavens, but this one is too big to explain away in terms of random variations in galaxy distribution. Kirshner et al carefully measured galactic redshifts in three widely separated regions of the sky and found almost no galaxies in the redshift velocity interval 12,000 to 18,000 km/sec in all three areas. One interpretation of this huge gap is that the initial post-Big-Bang distribution of matter in the universe was unexpectedly lumpy. A further problem arising is that such a large void should show up as a blip in the 3 K cosmic background radiation -- but it doesn't . (Anonymous; "Deep Redshift Survey of Galaxies Suggests MillionMPC3 Void," Physics Today, 35:17, January 1982.) Comment. A less popular possibility is that galaxy redshifts do not measure distance at all and that no void exists. Reference. Cosmic voids are cataloged at AWB3 in Stars, Galaxies, Cosmos. For ordering information, visit: here . From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R. Corliss ...
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... follows lunar sunsets. An astronaut standing on the moon watching the spot where the sun is about to rise would see first of all two well-recognized phenomena: the solar corona (even though the solar disc is still well below the horizon) and the zodiacal light (sunlight reflected from interplanetary dust). In addition, the astronaut would detect a glow along the horizon itself, as in the illustration. Since the moon is virtually airless, there should be none of those gas molecules and suspended dust particles that cause the sunsets and sunrises that we admire so much here on earth. Still, there must be something suspended above the moon's surface to scatter light from the sun still located just below the horizon. The best guess is that lunar dust particles are ionized by solar radiation and are repelled upwards from the surface and hang there suspended by electrostatic forces. But no one really knows for certain the cause of the glow. (Cowen, R.; "On the Horizon: Clementine Probes Moon Glow," Science News, 145:197, 1994.) Reference. Anomalous lunar horizon glows are cataloged in ALO11 in our catalog: The Moon and the Planets. For details, visit here . From Science Frontiers #93, MAY-JUN 1994 . 1994-2000 William R. Corliss ...
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... has now been reversed as some scientists plead that data contradicting 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 ...
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... abound; what more can be said? Evidently there is more. A.F . Aveni's recent article in Archaeology sets the Nazca lines in perspective and adds some new observations. First, Aveni deflates their mystery a bit. You do not have to be in an airplane to appreciate the lines; most can be viewed from ground level, even better from nearby foothills. Although there are some 1,300 kilometers of lines and about 300 geometric figures, their construction did not really involve much labor or special engineering skills. Even so, the Nazca lines are remarkable, and we really do not know for certain why they were etched on the Peruvian pampa. In his early research on the Nazca lines, Aveni noted their strong similarity to the ceque system of 41 imaginary lines radiating outwards from the Inca's Temple of the Sun, at Cuzco -- the "navel" of the Inca universe. ". .. the ceque system was a highly ordered hierarchical cosmographical map, a mnemonic scheme that incorporated virtually all important matters connected with the Inca world view." Could the Nazca lines have been a forerunner of the ceque system? Aveni also noticed that the Nazca lines and geometrical figures were closely related to watercourses. Also, many of the lines definitely functioned as footpaths. It was also apparent that the animal figures, which were laid down much earlier than the line systems, were not related conceptually to the line scheme. Aveni concluded: ". .. whatever the final answer may be to the mystery of the Nazca lines, this much is ...
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... Atlantic where North America and Europe are supposedly drifting apart. First, repeated direct measurements of the drifting seem to be a wash; that is, there is no drift to speak of. The expansion of the Atlantic basin seems to be only 5-13 mm/year (just 20% of the predicted rate), and this is partially offset by apparent contractions within the North American land mass! Second, St. Peter & Paul Rocks, on the Equator just west of the Atlantic Ridge, are supposed to be riding west on the spreading sea floor. Being close to the ridge, they should be 15-30 million years old. (The closer islands are to the Ridge, the younger they should be, if they are truly riding on a sea-floor conveyor belt.) But radiometric dating of the rocks making up these islets insists that they are 100800 million years old. (James, Peter; "A Synthesis of Major Objections to Mobile Plate Tectonics," New Concepts in Global Tectonics , no. 2, p. 6, March 1997.) From Science Frontiers #127, JAN-FEB 2000 . 1997 William R. Corliss ...
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... Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Gamma-ray flashes in the upper atmosphere Something strange is definitely going on in the upper atmosphere, particularly above thunderstorms. We have already reported on the mysterious light flashes (SF90) and radio emissions (SF#94). Now, we record similar, possibly intimately related flashes of energy in a different portion of the electromagnetic spectrum. "Detectors aboard the Compton Gamma Ray Observatory have observed an unexplained terrestrial phenomenon: brief, intense flashes of gamma rays. These flashes must originate in the atmosphere at altitudes above at least 30 kilometers in order to escape atmospheric absorption and reach the detectors." The energies of the gamma rays in the flashes are very high. They are typical of the braking radiation (Bremsstrahlung) from 1,000,000 electron-volt electrons. Since most of the gamma flashes originate over regions where thunderstorms are frequent, it is tempting to associate them with lightning. Ordinary lightning, however, is not energetic enough to generate the gamma flashes and, of course, it does not occur above 30 kilometers altitude anyway. G.J . Fishman et al, who reported on this new phenomenon in Science, speculate that some hitherto unrecognized, high altitude electrical discharges occur high above areas hosting thunderstorms. Possibly, upwardly directed lightning (" rocket lightning") is involved in all three of the newly found flashes in the radio, optical, and gamma portions of the electromagnetic spectrum. (Fishman, G.J ., et al; "Discovery of ...
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... Sourcebook Project Sourcebook Subjects Was there really a big bang?Narlikar says, "Maybe not," and proceeds to tick off observational evidence against it. He begins, however, by pointing out the philosophical impasse encountered as Big Bang proponents look backward to time = 0 and earlier. Where did the matter/energy of the Big Bang come from? Was the venerable Law of Conservation of Mass/Energy violated? Big Bangers loftily dismiss such questions as "nonsense." Narlikar follows with some observational problems of the Big Bang: There seem to be objects in the universe that are older than the Big Bang age of the universe (9 -13 billion years); Quasar redshifts used to support the Big Bang theory may arise from the general expansion of the universe; The microwave background radiation of 3 K, which was gleefully embraced by Big Bangers as an echo of their version of creation, is actually of the same energy density as starlight, cosmic rays, etc., and need not have anything to do with the Big Bang; and The Big Bang Theory and General Relativity assume a constant G (the gravitational constant), but some recent lunar orbit measurements suggest that G is slowly decreasing! (Narlikar, Jayant; "Was There a Big Bang?" New Scientist, 91:19, 1981.) Comment. Perhaps the most disturbing aspect of the whole Big Bang business is the contempt with which theory supporters dismiss all objections. Is the Big Bang a scientific theory or a belief system? Reference. Observations challenging the Big Bang may be found throughout ...
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... current Quarterly Review of Biology with a 24page contribution. It is difficult to do justice to this impressive work in a newsletter. Our readers will have to be satisfied with a mere two paragraphs, in which Buck summarizes some of the incredible synchronies. "More than three centuries later Porter observed a very different behavior in far southwestern Indiana in which, from the ends of a long row of tall riverbank trees, synchronized flashes '. .. began moving toward each other, met at the middle, crossed and traveled to the ends, as when two pebbles are dropped simultaneously into the ends of a long narrow tank of water...' "In 1961 Adamson described a still different type of display, the first from Africa: 'It is then too that one sees the great belt of light, some ten feet wide, formed by thousands upon thousands of fireflies whose green phosphorescence bridges the shoulder-high grass. The fluorescent band composed of these tiny organisms lights up and goes out with a precision that is perfectly synchronized, and one is left wondering what means of communication they possess which enables them to coordinate their shining as though controlled by a mechanical device.' A generation later, a flurry of full- dress bioluminescence expeditions had obtained photometric, cinematographic and electrophysiological measurements from congregational displays in Thailand, New Britain, New Guinea and Malaysia, confirming the reality of mass synchrony and uncovering a variety of types. Contemporaneously, Otto and Smiley photographed group wave synchrony of flying fireflies in central Texas, Ohba recorded two frequencies of synchrony in a Japanese species and Cicero described ...
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... Subjects There's more than gold in the kolar mines When physicists installed nuclear-particle detectors deep in a mine in the Kolar Gold Fields in India, they hoped to measure particles created by highly penetrating neutrinos arriving from cosmic sources. They found instead immense showers of nuclear particles coming, not from above as expected, but from the sides and even below! These huge showers of 1,000 or more assorted particles are called "anomalous cascades." Neutrinos are the only known particles capable of penetrating the entire earth to create upwardly directed showers, but ordinary neutrinos do not seem to have enough energy to give birth to the anomalous cascades. (Anonymous; "Particle Shower Sprays Upward," Science News, 118:246, 1980.) Comment. Are there sources of unrecognized radiation deep within the earth? From Science Frontiers #14, Winter 1981 . 1981-2000 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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... 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 Optical Bursters For years astronomers have been puzzling over the significance of "bursters"; i.e ., short bursts of radiation from various spots in the heavens. With sophisticated terrestrial and satellite-borne instruments, they have detected gamma-ray, X-ray, and infrared bursters. The visible portion of the spectrum has been neglected because of the slow development of sensitive, high-time-resolution detectors capable of monitoring large areas of the sky. Of course, the human eye is an excellent instrument for searching for optical bursters, but professional naked-eye astronomers are few and far between nowadays. It has fallen to amateur astronomers to pioneer this field, as first mentioned in SF#39, where we introduced those optical flashes seen in Perseus. At last, the professional astronomers are taking more interest in this class of bright, unexplained flashes in the night sky. Those amateur astronomers, with their "primitive" instrumentation, have actually had a paper published in the highly technical Astrophysical Journal. Their abstract follows: "Between 1984 July and 1985 July, 24 bright flashes were detected visually near the Aries-Perseus border by eight different observers at a total of 12 sites across Canada. One flash was photographed, and another was seen by two observers at different locations. Their duration was usually less than 1 s. The estimated positions of 20 of the events and another seen in 1983 were close enough ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The Lost City of Nan Madol Bubonic Plague As An Indicator of Diffusion? The Rabbit in the Moon: More Evidence of Diffusion? Astronomy The Martian Great Lakes Antarctic Meteorites Are Different Disparity Between Asteroids and Meteorites Biology The Gulper Eel and its Knotty Problem Bats May Have Invented Flight Twice (At Least!) Scant Ant Chromosomes Champ in 1985 Platypus Bill An Electrical Probe Polar Bear Coats Are Thermal Diodes Geology When Antarctica Was Green Wrong-way Primate Migration Eastern Quakes May Be Lubricated by Heavy Rainfalls The Exploding Lake Backtracking Along the Paluxy: Or is There A Deeper Mystery? Geophysics Electromagnetic Radiation From Stressed Rocks Some English Meteorological Anomalies Ozone Hole Over Antarctica Psychology Be Happy, Be Healthy: the Case for Psychoimmunology ...
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... , to exist. Sounds pretty far-out, but not as bizarre as string theory which requires many more dimensions! How did the universe begin? The cosmic microwave background is much too smooth. If it was smoothed out by a sudden expansion of the universe (so-called "inflation"), what caused the inflation? Why does matter fill the universe? in other words, where is all the antimatter that we think must have been created in equal amounts? (This equality is a human philosophical requirement. The universe can do anything it wants!) How did galaxies form? What is cold dark matter? This "substance" seems to be filaments threading the surfaces of cosmic bubbles (voids). It seems to be slow-moving and cold (no electromagnetic radiation), but no one really knows what it is. Apparently, it constitutes 30% of that part of the universe that we have so far detected. (We are doing a lot of guessing here!) Are all the baryons assembled in galaxies? Baryonic matter includes protons, neutrons, and electrons. Baryons should be abundant in intergalactic space, but they are nowhere to be found. What is the dark energy? Whatever it is, scientists have so far only been able to name it. It is thought to be associated with a repulsive force that is accelerating the expansion of the universe. What is the destiny of the universe? Will entropy do us in? (Sincell, Mark; "The 8 Greatest Mysteries of Cosmology," Astronomy, 29:46, ...
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... Fall 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Anomalous Sounds From An Australian Fireball On April 7, 1978, a very large fireball passed through the atmosphere above the east coast of New South Wales. Seen by hundreds, it generated many high quality reports. Fifteen of the written reports mentioned anomalous sounds -- hisses, hums, swishes, and crackling sounds heard simultaneously with the visual sighting. Such sounds are anomalous because the meteor is tens of kilometers high and real sound would take a minute or more to reach the ground. (The sound from a detonating meteor is often heard several minutes later.) Keay is convinced of the reality of the anomalous sounds and suggests that the highly turbulent plasma in the meteor wake generates powerful electromagnetic radiation at audio frequencies. This intense radio energy reaches the earth at the same time the visible light does. It may be converted into sound as it interacts with the surface and the observer. (Keay, Colin S.L .; "The 1978 New South Wales Fireball," Nature, 285:464, 1980.) Reference. Sounds from high-altitude meteors (" electrophonic" sounds) are covered in GSH2 in our Catalog: Earthquakes, Tides, Anomalous Sounds. Information on this book is posted here . From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...
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