28 results found.
... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Polar Bear Coats Are Thermal Diodes "A polar bear's hairs are completely transparent. The bear appears white because visible light reflects from the rough inner surface of each hollow hair. However, the hairs are designed to trap ultraviolet light. Like light within an optical fiber, the radiation is conducted along the hairs to the skin. This summertime energy supplement provides up to a quarter of the bear's needs. Thus, even while actively pursuing prey, the bear can still concentrate on building up its blubber layers in preparation for winter." In other words, the bear's fur lets heat in but not out -- in effect a thermal diode. (Anonymous; "Solar Bear Technology," Science News, 129:153, 1986.) Comment. How come polar bears are favored with this "marvelous adaptation" while the arctic foxes and other mammals shiver? From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 87: May-Jun 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The vent glow and "blind" shrimp In 1988, when the research submersible Alvin was exploring those remarkable hydrothermal vents or "black smokers." Its CCD (Charge-Coupled Device) camera detected a ghostly glow emanating from the vents. Since this mineral-laden water gushing from these cracks in the deep-sea floor exits at 350 -400 C, the simplest explanation of the vent glow is that is is simply thermal radiation from the hot fluid. Indeed, color filters on the camera recorded a spectrum close to that of a 350 C plume. But the deep-sea shrimp camped around the vents have raised second thoughts. The shrimp, only a few inches long, live in the perpetual darkness of the miles-deep vents. They do not need and do not have ordinary eyes. Rather, they sport a mysterious organ on their backs that is connected to their brains by a nerve-fiber bundle much like an optic nerve. This organ is packed with the same light-sensitive pigments found in the eyes of surface creatures. Despite its unusual location on the shrimp, it is an "eye" of sorts. But of what use is it in the Stygian abysses? To find, perhaps, vent glows that betray the presence of chemosynthetic food sources. If this is so, the shrimps' optical organ, which is most sensitive in the blue-green portion of the spectrum, is ...
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... devils ranged from just a foot or so in diameter to 500 yards and more. The giants were majestic masses of swirling sand that moved along at leisurely paces. These appeared harmless enough, but stepping through the outer wall into the vortex sucked the air out of the lungs. "Outside our hangar there is a large stretch of wind-sheltered concrete which becomes intensely hot. In this area, close to the foot of the hangar, one can start up one's own little devils on occasions by a quick sweep of a signalling bat (which is shaped like a large ping-pong bat) from shoulder level in circular and downwards direction to a point almost touching the ground; one must step rapidly back or the vortex that is set up is spoilt. Such a miniature thermal starts about a foot in diameter and quickly assumes a conical shape about two feet high, moving along the ground at a walking pace. Its rotation increases very rapidly, until one has the impression of a whirling snake in front of one. As it reaches the edge of the concrete a little sand is thrown up and the thermal dies away." (Swinn, R.H ., "On Flying Gliders into Wind Devils," Journal of Meteorology, U.K ., 10:17, 1985.) From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 60: Nov-Dec 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mystery Glow On The Sea Floor "Marine scientists have discovered two thermal vents on the seabed that glow in the dark. A group of researchers, led by oceanographers from the University of Washington, detected faint light during an expedition to the Juan de Fuca Ridge. The ridge and the vents, 300 km off the coast of British Columbia, follow an underwater fault formed by the junction of the Juan de Fuca and the Pacific tectonic plates...John Delaney, leader of the expedition, described the glow as a 'flame-like light' that seems to emanate from the super-heated water 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 ...
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... 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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... Science Frontiers ONLINE No. 65: Sep-Oct 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Microorganisms At Great Depths It was a surprise when diverse biological communities were discovered around deep-sea thermal vents, where sunlight is nonexistent and the energy for sustaining life must be extracted from the mineral-charged water gushing from the vents. An analogous situation occurs at great depths in the earth's crust itself, as proven by sampling at three deep boreholes in South Carolina. Number of microorganism colony types at various depths at Site P28. The concentration and diversity of microorganisms (mostly bacteria) at depths as great as 520 meters (1610 feet) below the ground's surface are remarkably high. It makes one wonder what will be found even farther down. To illustrate, more than 3000 different microorganisms have been found in the boreholes. Many of the bacteria are new to science. As the following two paragraphs demonstrate, subterranean life consists of many well-adapted microorganisms working together. "The traditional scientific concept of an abiological terrestrial subsurface is not valid. The reported investigation has demonstrated that the terrestrial deep subsurface is a habitat of great biological diversity and activity that does not decrease significantly with increasing depth. "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 ...
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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 Life Seeks Out Energy Sources Wherever They May Be Life is opportunistic; it siphons off energy wherever it can find it. That life utilizes solar energy we all know. And, of course, humans have tapped the atom for energy. In just the past few years, remarkable colonies of life forms have been discovered congregated around deep-sea hydrothermal vents where sunlight is essentially nonexistent. Still more recently, similar life forms have been found clustered around oil seeps in the Gulf of Mexico. As at the hydro-thermal vents, the clams, worms, crabs, and other organisms depend mainly upon the ability of bacteria to chemosynthesize -- the primary energy source being hydrogen sulfide in the vented water. (Paull, C.K ., et al; "Stable Isotope Evidence for Chemosynthesis in an Abyssal Seep Community," Nature, 317:709, 1985; Also: Weisburd, S.; "Clams and Worms Fueled by Gas?" Science News, 128:231, 1985.) Comment. Since the earth's crust seems honeycombed with fissures and rivers of life-sustaining fluids, subterranean life may be as common as the abyssal chemosynthetic life at the vents and seeps. This versatility of life signals us that we should look for life wherever there is energy of any kind. From Science Frontiers #43, JAN-FEB 1986 . 1986-2000 William R. Corliss ...
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... example, BHB1 = B (Biology)+ H (Humans)+ B (Behavior)+ 1 (first anomaly in Chapter BHB). Some anomalies and curiosities that are listed below have not yet been cataloged and published in catalog format. These do not have the alphanumerical labels. EC Chemical and Physical Anomalies associated with inner Earth ECC CHEMICAL ANOMALIES ECC1 Anomalous Abundances of Some Noble Gases ECD DEEP-DRILLING DISCOVERIES ECD1 Drilling Truth Confounds Surface Science ECG STRUCTURAL ANOMALIES INDICATED BY GRAVITATIONAL ANOMALIES ECG1 Remarkable Gravity Anomalies ECG2 Gravity Trends That Challenge the Continent-Accretion Model ECG3 Gravity Data Indicating Large Mantle Inhomogeneities ECG4 Anomalous Gravity Signals Following Earthquakes ECH HEAT-FLOW ANOMALIES ECH1 Mid-Plate Volcanism ECH2 Hawaiian Hot-Spot Tracks ECH3 Dearth of Continental Hot Spots ECH4 Non-Random Distribution of Hot Spots ECH5 Thermal Plumes Correlated with Other Geophysical Activity EQ SEISMIC PROBING OF INNER EARTH EQA LOCALIZED STRUCTURES IN THE CORE AND MANTLE EQA1 Stratification of Basement Rocks EQA2 Deep Continental Roots EQA3 Deep Penetration of Subducted Slabs EQA4 Lateral Inhomogeneities in the Lower Mantle EQA5 Mysterious Structures at the Core-Mantle Boundary EQA6 Seismic Reflectors EQD SEISMIC DETECTION OF LARGE SCALE DISCONTINUITIES, ZONES, STRUCTURES EQD1 Velocity Discontinuities EQD2 Channels and Zones EQD3 Structural Anomalies of the Inner Core EQD4 Anomalies Associated with Mantle Convection Cells EQQ ANOMALOUS SEISMIC SIGNALS EQQ1 Deep-Focus Earthquakes ES STRATIGRAPHIC ANOMALIES ESA EMBEDDED ACCRETION STRUCTURES ESA1 Cylindrical Structures in Rock and Unconsolidated Sediments ESA2 Spherical Aggregates ESA3 Concretions ESA4 Small Fused Structures ESA5 Geodes ESA6 Orbicules ESB ANOMALOUS BIOLOGICAL PHENOMENA IN GEOLOGY ESB1 Biological Extinction Events ESB2 Biological Explosion Events ESB3 Recent Vegetation and Shallow Water Fossils at Great Depths ESB4 Long ...
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... We introduce here a remarkable theory of terrestrial catastrophism that seems to be supported by evidence that is equally remarkable. One of the authors of this theory (RBF) is identified as a nuclear scientist at the Lawrence Berkeley Nuclear Laboratory. The second author (WT) is a consultant. The authors' credentials seem so good that we must take a close look at their extraordinary claims concerning a natural phenomeon that they believe reset radiocarbon clocks in north-central North America and -- potentially -- elsewhere on the planet. We will be most interested in the reception accorded these claims by the scientific community. The claims. In the authors' words: Our research indicates that the entire Great Lakes region (and beyond) was subjected to particle bombardment and a catastrophic nuclear irradiation that produced secondary thermal neutrons from cosmic ray interactions. The neutrons produced unusually large quantities of 239Pu and substantially altered the natural uranium abundances (235U/238U) 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 ...
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... Science Frontiers ONLINE No. 20: Mar-Apr 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Subterranean petroleum factories?Sediment samples dredged up from the bottom of the Gulf of California near some hydrothermal vents contain petroleum similar in some ways to commercial petroleum. Apparently organic matter in the vicinity of the vent is thermally converted into oil, or at least something that, like wine, matures into something useful. (Simoneit, Bernd R.T ., and Lonsdale, Peter F.; "Hydrothermal Petroleum in Mineralized Mounds at the Seabed of Guayman Basin," Nature, 295:198, 1982.) Comment. The recently discovered hydrothermal vents are only the external manifestations of what must be extensive chemical factories beneath the crust. The rich assemblages of thermosynthetic life (not photosynthetic life) around the vents makes one speculate about what might be transpiring chemically and biologically in the hot, fluid-saturated crevices and pores of the earth's crust. Carbon dating of petroleum sometimes yields absurdly young ages. Could it be that all the natural gas and petroleum we could ever need is now being manufactured for us subterraneanly ? The Gaia hypothesis would lead us to expect just such a process. After all, humankind requires abundant fuel if it is to carry earth life out into the reaches of space! From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 84: Nov-Dec 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects It Came From Within Life did, that is! Forget that warm little pond where life incubated according to all the textbooks. Instead, 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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... Science Frontiers ONLINE No. 88: Jul-Aug 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Whale falls: stepping stones across the ocean abysses Unique biological communities flourish at widely separated "oases" on the deepsea floors, where hydrothermal vents supply the energy and chemicals necessary for life. Here are found free-living bacteria, tube worms, molluscs, and several other species that prosper without the benefit of photosynthesis. These chemosynthetic, thermal-vent communities are separated by thousands of kilometers of sea-floor "desert." Yet, the species involved are similar worldwide and must, at some time, have crossed these wide, forbidding expanses. One possible mechanism for this mysterious dispersion came in 1987, when the research submersible Alvin chanced upon the remains of a 21-meter whale at a depth of 1,240 meters off California's coast. The whale's skeleton was covered with bacterial mats like those at the hydrothermal vents. Also sustained by the carcass were mussels, snails, and worms; all in all, a community much like those at the vents. Furthermore, many of the species partaking of the whale's energy and chemical resources are not normally found in that part of the Pacific. Subsequently, more "whale falls" with attached biological communities were found elsewhere. Calculations suggest that whale falls are more common that one might suppose -- perhaps occurring with average spacings of only 25 kilometers. They could very well be the stepping stones that allow hydrothermal vent communities to disperse across the ...
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... Science Frontiers ONLINE No. 40: Jul-Aug 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Libyan desert glass may not be the product of impacts.The mysterious Libyan Desert Glass (LDG) is almost pure silica. It occurs in pieces weighing up to 16 pounds in the Sand Sea of the Libyan desert, in an area roughly 130 by 53 kilometers. Most scientists have attributed it to meteorite impact. The results of a thermal, microstructural, and chemical analysis of LDG suggest that it is more likely derived from a low-temperature chemical process rather than meteorite impact on sand. (McPherson, D., et al; "Was Libyan Desert Glass (LDG) Formed by a Low Temperature Chemical Process?" Eos, 66:296, 1985.) Comment. This short abstract in Eos is frustrating. What sort of natural chemical process could leave pieces of glass strewn over such a huge area? And what about the Darwin Glass in Australia? Reference. Various natural glasses are discussed in ESM2 in the Catalog: Neglected Geological Anomalies. For more information on this book, visit: here . From Science Frontiers #40, JUL-AUG 1985 . 1985-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 124: Jul-Aug 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Photosynthesis At Deep-Sea Vents The surprisingly rich populations of lifeforms that prosper around the hydrothermal vents have been thought to be utterly dependent upon chemical energy for their survival. Such now seems to be a limited view. There is light at the bottom of the ocean! "Of particular interest is the potential for deep-sea vents and subsurface environments to support geothermally (rather than solar-) driven photosynthesis. Recent work on ambient light conditions at hydrothermal vents indicates that the photon flux generated by thermal radiation of 350 C water should be sufficient to sustain lowlevel photosynthesis, and there is at least one report of a faculative phototroph isolated from water samples taken near a deep-sea vent." A particularly important implication of this undersea light source is that the evolution of photosynthesis need not have been dependent upon the existence of life on land. Also, hydrothermal vents could have served as refuges for photosynthesizing life forms down the geological eons when: (1 ) ocean surfaces were ice-covered; (2 ) the terrestrial surface was exposed to deadly levels of radiation, as when the ozone layer was destroyed; and (3 ) when volcanism or dust from meteor impacts blackened the skies. (Van Dover, Cindy Lee; "Biology in Extreme Environments at Deep-Sea Hydrothermal Vents," Eos, 70:F54, 1998.) From Science Frontiers #124, JUL-AUG 1999 . 1999-2000 William R ...
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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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... Science Frontiers ONLINE No. 11: Summer 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A GEOTHERMAL WOMB?A flurry of papers and at least one TV documentary have widely promulgated the news that many life forms thrive near the thermal vents 2,550 meters under the sea along the Galapagos Rift. Mollusks, worms, crabs, and other forms of life make up a successful biological community where light never penetrates. Terrestrial heat rather than the sun keeps this life going. The geothermal heat reduces sulfur compounds emitted from the vents and chemosynthesis proceeds up the biological ladder without need for sunlight. (Karl, D.M ., et al; "Deep-Sea Primary Production at the Galapagos Hydrothermal Vents," Science, 207:1345, 1980.) Comment. The implications are far-reaching. Does life exist at great depths in the earth and beneath the apparently lifeless surfaces of the other planets? Photosynthetically sustained life may represent only a small slice of the biological pie. Was sunlight necessary for life to originate and evolve -- assuming it did each? From Science Frontiers #11, Summer 1980 . 1980-2000 William R. Corliss ...
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... laboratory lasers were taking place and led to the coining of the term 'natural lasers.' Now, Deming and colleagues from the Goddard team have taken new observations of emission from Mars and Venus at wavelengths near 10 micrometers. and modelled them to show that stimulated emission -- the effect which makes lasers so powerful -- accounts for up to seven per cent of the total emission. This is not a large amplification factor by laboratory standards, particularly for a CO2 laser. But, the authors speculate that the sheer size of the natural lasers could make them useful tools in the future for communicating with distant civilizations beyond our own planetary system." The atmospheres of Mars and Venus are almost pure CO2 . The CO2 molecules are excited by the absorption of energetic solar photons; then, thermally emitted photons at about 10 micrometers from lower reaches of the atmosphere collide with the excited molecules, stimulating them to emit another 10-micrometer photon, thus doubling the number of photons. This is typical laser action. Deming and Mumma speculate that the natural laser action existing in the Martian atmosphere could be intensified and focussed into an intense beam of infrared radiation of enormous power by placing two large mirrors in orbit, creating a space-borne analog of a laboratory laser. With this huge laser, one could conceive of communicating with neighboring stellar systems. (Taylor, F.W .; "Natural Lasers on Venus and Mars," Nature, 306:640, 1983.) From Science Frontiers #32, MAR-APR 1984 . 1984-2000 William R. Corliss ...
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... truly remarkable." Thus Barbara McClintock ends the paper she delivered in Stockholm when she received a Nobel Prize in 1983. Most of McClintock's paper reviews her pioneering work with the corn genome, but she adds some examples of other genomic responses to external stresses. One such stress is applied to an oak tree when a wasp lays its egg in a leaf. The stress causes the oak genome to reprogram itself and construct a wholly new and unplanned plant structure to house and feed the developing insect. Some of these structures (galls) are very elaborate and are precisely tailored to each different wasp species. From such examples, it is apparent that the genome of an organism somehow perceives stresses and reacts to them -- often in completely unanticipated ways. The stresses may be mechanical, thermal, chemical; in fact, almost anything. McClintock's conclusion is: ". .. that stress, and the genome's reaction to it may underlie many formations of new species." (McClintock, Barbara; "The Significance of Responses of the Genome to Challenge," Science, 226:792, 1984.) Comment. The implications here are broad and deep. Evolution can be driven by external stresses. The new species thus produced may differ substantially from the original organism, eliminating the need to look for "missing links" in the fossil record. What "hope-ful monsters" are latent in our human genome, awaiting only the right stresses to manifest themselves? And is the genomes's malleability reversible; that is, can extinct species ...
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... Science Frontiers ONLINE No. 130: JUL-AUG 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Baikal: The Inland Ocean Lake Baikal, in Siberia, is the planet's deepest lake (1635 meters) and the richest in biodiversity (over 1,000 species of animals and plants existing nowhere else). Even though Lake Baikal is only 20-25 million years old, more than 5 kilometers of sediment have accumulated in some spots. These facts are remarkable as fresh-water lakes go, but Baikal also has features usually found only in salty oceans. It seals sport in fresh water 1,000 kilometers from the nearest salt water. (How did they get there?) Even more interesting are Baikal's thermal vents or chimneys that are otherwise restricted to cracks in the earth's crust in the deep oceans. Further enhancing Baikal's marine attributes, deep drilling and seismic profiles have recently discovered the existence of gas hydrates (methane hydrate, for example). Plumes of gas bubbles have also been detected where gas hydrates have been tectonically disturbed. There are even craters on Baikal's deep bottom where gas hydrates have erupted explosively. (De Batist, Marc, et al; "Tectonically Induced Gas-Hydrate Destabilization and Gas Venting in Lake Baikal, Siberia," Eos, 80:F502, 1999.) Comments. Baikal's gas-explosion craters resemble those on the floor of the North Sea. There, the sudden releases of gases are thought to cause the famous ...
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... , C, O, N, etc -- and in profusion. Collisions of cosmic rays can promote the synthesis of fairly large molecules. We have already detected molecules as complex as formaldehyde in the interstellar medium. But surely the immensely more complicated molecules of biology cannot be synthesized near absolute zero. This may not be true either because at extremely low temperatures the quantum mechanical phenomenon of "tunnelling" becomes important. To achieve molecular synthesis, repulsive barriers must be overcome. The warm temperatures in that terrestrial pond can provide the extra kinetic energy to climb over these barriers. In cold molecular clouds we must look elsewhere. The laws of quantum mechanics state that there is always a very low probability that atoms and molecules can tunnel through repulsive barriers -- no need to climb over them via thermal effects. "Specifically, entire atoms can tunnel through barriers represented by the repulsive forces of other atoms and form complex molecules even though the atoms do not have the energy required by classical chemistry to overcome the repulsion." Of course, the reaction rates are slow, but the size of the cosmic pond is vastly greater than any terrestrial puddle. The above quotation is from V.I . Goldanskii who, even before Hoyle, suggested a cold prehistory of life, during which complex organic molecules were synthesized at just a few degrees above absolute zero. His article dwells primarily on the physics of the tunnelling phenomenon, which is well verified in the laboratory, but he does not shrink from the biological implications. (Goldanskii, Vitalii I.; "Quantum Chemical Reactions in the Deep ...
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... ONLINE 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 ...
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... -sensitive innards. Female dolphins have similar heat exchangers to cool their uteri. The same article in Discover points out still another remarkable adaptation conferred on dolphins: They do not have to expend a lot of energy in diving to great depths. Below about 70 meters, the water pressure collapses their lungs so that they sink like rocks! Of course, returning to the surface does require some exertion. (Zimmer, Carl; "The Dolphin Strategy," Discover, 18:72, March 1997.) Comments. One automatically supposes that the dolphin dorsal fin is needed for stabilization when swimming -- like an airplane's rudder. But several cetacea do quite well without dorsal fins; viz., the finless dolphin found in IndoPacific waters. Could dorsal fins actually have evolved for thermal control rather than stabilization? And how do dolphin's breathe if their lungs have collapsed? Their blood and muscles act as oxygen reservoirs -- still another evolutionary adaptation. Speaking of evolution, as one must when discussing Nature's neat methods of solving bioengineering problems, how did random mutation and natural selection hit upon the heat-exchanger and oxygen-reservoir ideas? We know! These were more millimeter-by-millimeter climbs up Mount Improbable. Reference. The finless dolphin and the general question of dorsal-fin evolution is the subject of Section BMA46 in our Catalog Mammals I . Details may be found at here . From Science Frontiers #112, JUL-AUG 1997 . 1997-2000 William R. Corliss ...
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... 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"? By "cosmic Gaia" we mean the cosmic version of the conventional Gaia concept; i.e ., earth ...
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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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... a tomato plant'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.; " ...
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... May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ancient Modern Life And Carbon Dating Pursuant to the possible effect of the earth's recent envelopment by a molecular cloud on the accuracy of carbon dating (SF#98), we now look at the potential distortion caused by the ingestion of primordial carbon (carbon-13) by plants and animals. Primordial carbon may come from limestone or natural gas welling up from the earth's interior. Modern life forms that metabolize primordial rather than atmospheric carbon dioxide, with its cosmic-ray produced carbon-14, will appear extremely old when carbon-dated. For example, M. Grachev et al carbon-dated flatworms and a sponge collected from a bacterial mat near a thermal vent 420-meters deep in Lake Baikal. The apparent ages of these living organisms ranged from 6860 to 10,200 years. (Grachev, M., et al; "Extant Fauna of Ancient Carbon," Nature, 374:123, 1995) Even animals eating these apparently ancient life forms may take up their carbon-13 and, in effect, be drained of carbon-14. They would appear to age rapidly. Such false aging has actually been induced in the laboratory with mice fed on brewer's yeast grown in natural gas. These mice, living in cages at Lawrence Livermore National Laboratory, California, were carbon-dated as being 13,000 years old, and were expected to attain a ripe old age of 35,000 in a few ...
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... . The sediments de-posited on the lake floor are of astounding thickness. Bedrock lies 7 kilometers below the lake surface in some spots. With a maximum depth of 1637 meters, we find by subtraction places where more than 5 kilometers of sediment have collected. The diversity of Baikal's life is remarkable in itself, but there are two aspects of it that approach the anomalous: (1 ) Baikal's seals are 1000 kilometers of so from salt water. How did they get 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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... BHF5 Fiery Breaths BHF6 Human Rumination BHF7 Nondigestion of the Stomach Lining BHF8 Anomalous Objects in the Stomach BHF9 Bleeding Correlated with Lunar Phase BHF10 Spontaneous Hemorrhages Correlated with Astrological Factors BHF11 The Unusual Nature of Skin Wound Healing in Humans BHF12 The Efficacy of Electricity in Healing BHF13 Limb Regeneration in Humans BHF14 The Relationship between Menstrual and Lunar Cycles BHF15 Synchronization and Control of Menstrual Cycles BHF16 Menstruation from Unlikely Spots BHF17 Body Potential-Difference Spike during Menstruation BHF18 Remarkable Aspects of the Female Sexual Cycle BHF19 Male Menstruation BHF20 Tolerance of the Placenta BHF21 Maternal Impressions BHF22 Telegony BHF23 Birth-Frequency Correlated with Day-of-the-Week BHF24 Birth-Frequency Correlated with Month-of-the-Year BHF25 Births Correlated with Lunar Phase BHF26 Anomalous Variations in Twin and Multiple Births BHF27 Extremely Rapid Growth in Children BHF28 Human Thermal Control: A Uniquely Bad Design BHF29 Colored Perspiration BHF30 Emotion-Stimulated Tears BHF31 The Lack of Any Measurable Biochemical Value of Sleep BHF32 Lunar Control of the Sleep Cycle BHF33 Voluntary Suspended Animation BHF34 Human Mortality Correlated with Geomagnetic Activity BHF35 Nearly-Simultaneous Deaths of Twins BHF36 Curious Attitudes after Death Geophagy in Pregnancy and Health Evolution of Menopause Uncertain Purpose of REM Sleep Curious Nature of Anesthesia Evolution of Menstruation Fetal Growth Correlated with Solar Activity Evolution of Sex Purpose of Life after Menopause Decline in Sperm Counts Fetus Signals Timing of Birth How Embryo Development Is Controlled and Effected Cycles in Autistic Births Rhythms in Growth Evolution of Lactose Tolerance Twins and Occurrence of Nightmares Timing of the End of Sleep BHG HUMAN GENETICS BHG1 Human Chromosomes Less Evolved Than Ape Chromosomes BHG2 The Presence of Introns in Human Chromosomes BHG3 Human Chromosomes Lack ...
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