270 results found.
... Science Frontiers ONLINE No. 75: May-Jun 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The first food: tholin "You've just had a hard day evolving into the first life-form on your primitive planet, and you're ready to chow down. Problem: What can you eat? A quick survey of the food chain isn't promising; you're it. Do you simply starve to death, ending your world's brief experiment with life? Not if a rust-colored substance called tholin is within reach. Tholin may have served as breakfast, lunch, and dinner for the first life on Earth." The tholins are hard, red-brownish substances made of complex organic compounds. They do not exist naturally on earth, because our present oxidizing atmosphere blocks their synthesis. However, tholins can be made in the lab by subjecting mixtures of methane, ammonia, and water vapor to simulated lightning discharges. Conditions like this probably exist many places in the universe. In fact, the icy moons of the outer solarsystem planets appear ideal places for tholin manufacturing. What would eat such stuff? Lab tests show that many kinds of bacteria love it and thrive on it. (Chaikin, Andrew; "First Foods," Discover, p. 18, February 1991.) Comment. A purposeless universe that just happens to create a substance for primitive life? Strange that things should be this way! From Science Frontiers #75, MAY-JUN 1991 . 1991 ...
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... Wheel-shaped plats. Width of beds, 6-20 feet; paths, 1 foot; length, 14-20 feet. Hubbard recognized eight types of beds. Two of these are illustrated and described right. Hubbard gave no figure for the total extent of the beds. Individual plats ran from 20 to 300 acres. Considering that they stretched for miles through three counties, we are certainly talking about thousands of acres. Hubbard stated that the usual pottery, arrowheads, spear points, and related artifacts seemed to be absent from the areas of the beds. (Hubbard, Bela; "Ancient Garden Beds of Michigan," American Antiquarian, 1:1 , 1878. Reprinted in : INFO Journal, 12:6 , no. 2, 1989. INFO = International Fortean Organization, P.O . Box 367, Arlington, VA, 22210.) Reference. This article is also reprinted in our handbook: Ancient Man. To order this huge compilation, visit: here . From Science Frontiers #68, MAR-APR 1990 . 1990-2000 William R. Corliss ...
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... Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects New Life For Martian Life After the negative (some say "ambiguous") results from the Viking spacecraft life-detection experiments in 1976, astronomers and biologists have proclaimed that Mars is sterile. This pronouncement may have been premature. A meteorite discovered in Antarctica in 1979 may change a few minds on this matter. This particular meteorite is one of the handful thought to have been blasted off into space by an oblique impact of an asteroid on the surface of Mars. Somehow, statistics were kind to these tiny Martian orphans, for they found their ways to the Antarctic snows. But what is really exciting is the recent discovery that chemical analysis of one of these purported Martian meteorites revealed a high concentration of organic material deep within. The implication is that Martian life existed, perhaps still does exist, beneath the Martian surface, where the Viking Lander's scoop could not get at it. (Anonymous; "Life under Mars?" Sky and Telescope, 78:461, 1989.) Comment. In other words, Mars like the earth, may harbor an unappreciated fauna in crevicular structure beneath the environmentally rigorous surface. See also: SF#67. From Science Frontiers #68, MAR-APR 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 70: Jul-Aug 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Crystal Engineering Left to themselves, molecules of calcium carbonate tend to crystallize into neat rhombohedrons. But when a sea urchin gets hold of the same molecules, its biological machinery coaxes them into crystallizing into long spines, complete with pores and curved edges. X-ray diffraction patterns prove that the spines are all one crystal . In like fashion, bacteria mold miniature single-crystal bar magnets for navigational purposes. Many animals indulge in crystal engi neering. Now if we can only train organisms to build crystalline electronic devices for us. Biogenic chips? (Mann, Stephen; "Crystal Engineering: The Natural Way," New Scientist, p. 42. March 10, 1990.) From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
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... replicates itself. This seems to be a step on the road to artificial life. "Julius Rebek, Tjama Tjivikua and Pablo Ballester of the Massachusetts Institute of Technology say that their compound, an amino adenosine triacid ester (AATE), acts as a "template" which combines molecular fragments to make a copy of the original compound. This process is very similar to that used by DNA. The difference is that the biological copying usually needs an enzyme to make it work." (Emsley, John; "Artificial Molecule Shows 'Sign of Life,'" New Scientist, p. 38, April 28, 1990.) Comment. No one can say that replication is a "spontaneous" property of inorganic matter. It is truly remarkable that base matter is intrinsically self-organizing and replicating. We know! It is all because the universe just happens to be anthropic. From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
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... Issue Sourcebook Project Sourcebook Subjects Those Amazing Insects Scientific creationists often point out marvels of biological engineering as proofs that evolution by small chancedirected steps is, to say the least, improbable. A sharp arrow for their qui ver has just appeared in Science. Caterpillar-ant vibrational communication. Some species of caterpillars cannot survive predation unless they are protected by ants. To attract the ants, who just happen to dote on special secretions of the caterpillars, the caterpillars send out vibrational signals across leaves and twigs. In addition to their secretory structures, the caterpillars have also evolved novel vibrators to send out their calls for protection. A few butterfly species from all continents (except Antarctica) have evolved these devices. Looking at this geographical spread, P. J. DeVries thinks that the two sets of organs must have developed independently at least three times . (DeVries, P.J .; "Enhancement of Symbioses between Butterfly Caterpillars and Ants by Vibrational Communication," Science, 248:1104, 1990.) From Science Frontiers #71, SEP-OCT 1990 . 1990-2000 William R. Corliss ...
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... are investigating a link between a fastmoving object crossing the Pacific and the mysterious appearance of crop circles in English fields. "A ship from Tokyo University's Ocean Research Institute was in the Pacific when its radar equipment located a large object travelling more than four times the speed of sound. The radar discounted it as an aircraft because of its size, 400 metres across, and it sped northwards. "The Japanese scientists identified the object as a plasma vortex, caused by freak weather. The phenomenon is similar to ball lightning and believed to be generated by 'mini-tornadoes' of electrically-charged air. "Plasma vortices can be luminous at night. 'They are often mistaken for UFOs,' says Dr Terence Meaden, director of the Oxford-based Tornado and Storm Research Organization." (Spicer, Andi; "Clue to mystery of Circles," London Observer, May 20, 1990. Cr. T. Good via L. Farish) Alien Hieroglyphics? "The extraordinary variety of circle formations and multiple-ringed circles is quite unlike what one would expect for a natural phenomenon, such as an atmospheric vortex. The complexity has increased through the 1980s, and this year it has developed at a startling pace. "In May there began to appear what researchers call pictograms. Initially these consisted of two circles joined by a straight channel of flattened corn, with extra features such as rectangles or semicircular rings. There have now been about 20 of these. The latest have quadrupled the length to about 150 yards and consist of complex arrangements of up to ...
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... at Glons, south-east of Brussels, which is part of the NATO defense group, and one at Semmerzake, west of the Capitol, which controls the military and civilian traffic of the entire Belgian territory. The range of the two radars is 300 kilometers, which is more than enough to cover the area where the reports took place...Headquarters determined to do some very precise studies during the next 55 minutes to eliminate the possibility of prosaic explanations for the radar images. Excellent atmospheric conditions prevailed, and there was no possibility of false echoes due to temperature inversions. ". .. at 0005 hours the order was given to the F-16s to take off and find the intruder. The lead pilot concentrated on his radar screen, which at night is his best organ of vision. The F-16 is equipped with very sophisticated equipment, including chase radar, which is not fixed directly ahead of the airplane, but makes a wide search in an arc' of 90 degrees left and right of the nose... "Suddenly the two fighters spotted the intruder on their radar screens, appearing like a little bee dancing on the scope. Using their joy sticks like a video game, the pilots ordered the onboard computers to pursue the target. As soon as lock-on was achieved, the target appeared on the screen as a diamond shape, telling the pilots that from that moment on, the F-l6s would remain tracking the object automatically. "[ Before the radar had locked on for six seconds] the object had speed up ...
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... Science Frontiers ONLINE No. 73: Jan-Feb 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Amusing Assemblage Of Anomalies We don't read much about "waterguns" in the modern scientific literature, but a century ago Nature published many ear-witness accounts of them. These muffled detonations heard near the coasts of almost all the continents are believed by some to be caused by eruptions of methane from the seafloor. The same eruptions probably also account for the myriads of "pockmarks" found in the sediments of shallow seas. Whether this outgassing of methane comes from shallow accumulations of organic matter or from deep within the crust is still debated. Here, geophysics merges with biology. Recently, a group of researchers discovered a large (540 square meters) patch of chemosynthetic mussels in a brine-filled pockmark, at a depth of 650 meters, off the Louisiana coast. The mussels grew in a ring around the concentrated brine. The mussels harbor symbionts which consume the methane still seeping up through the brine from a salt diapir (a massive fingerlike intrusion 500 meters below the brine pool. The origin of some diapirs is not well-understood.) The mussels get the oxygen they require from the ordinary seawater covering the dense brine. Like the biological communities surrounding the "black smokers" and other ocean-floor seeps, the brine-filled pockmark community includes several species of shrimp, crabs, and tube worms. We have here another example of the astounding ability of lifeforms to take advantage of unusual, even ...
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... the satellite, but alteration of the ship's head to port or starboard did not cure the low signal strength. .. .. . "Of note, although this may have been a coincidence only, was that the vessel was passing through patches of bioluminescence at the time, mostly only bright enough to show up in the breaking waves of the ship's wake, but during the period of low signal strength, the whole area of white, foamy water along the ship's side frequently shone a bright greenish colour." (St. Lawrence, P.F .; "Radar Interference," Marine Observer, 60:17, 1990.) Comment. Apparently, some sort of electromagnetic disturbance affected not only the radar but also satellite communications and the bioluminescent organisms in the water. Could it have been one of those plasma vortexes said by some to be responsible for some of those crop circles? Reference. Other examples of radar phenomena associated with bioluminescence are cataloged in GLW10 and GLW14 in our catalog: Lightning, Auroras. To order, visit: here . From Science Frontiers #78, NOV-DEC 1991 . 1991-2000 William R. Corliss ...
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... that the admissions of Chorley and Bower have "brought to an end one of the most popular mysteries Britain -- and the world -- has witnessed in years." (Constable, Anne; "It Happens in the Best of Circles," Time, 138:59, September 23, 1991.) Essence of the Science article. The Science piece was written before the Time expose, but it presents several points supporting the existence of a genuine natural phenomenon beneath all the obvious hoaxing. T. Meaden, an English scientist, has personally investigated over 1000 crop circles. He remarks that, before all the media hype, all the corn circles were simple in design -- including plain circles, ringed circles, and circles with small satellite circles nearby. In 1991, Meaden organized Operation Blue Hill, during which 40 researchers watched British crop fields. Significantly, one circle formed in a field they had ringed with automatic alarms, making a hoax very unlikely. All in all, some 1800 crop circles have been recorded, many in other countries, including Japanese rice fields. One doubts that hoaxers could have been this ubiquitous. Further, Y. Ohtsuki, a Japanese scientist, has been able to reproduce some of the characteristic corn-circle patterns by dropping plasma fireballs into a plate dusted with aluminum powder. Even double rings can be created around central circles in this way. So, the simple crop circles could well have reasonable explanations. The gist of the Science article is that interesting science might be done with the crop-circle phenomenon. But will it ...
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... ; that is, that flux of X-rays that pervades the universe but which seems to come from no place in particular. Distant quasars are thought to contribute some of this diffuse X-ray flux but, even with recent quasar discoveries, there are just not enough of them to account for the X-rays observed. To make matters worse, quasar X- ray spectra do not match that of the X-ray background either, particularly at very short wavelengths. Superimposed on the general X-ray background are discrete X-ray sources separated by extended blobs of X-ray emitting material. If these blobs are really clumps of clumps of quasars too close to be separated by our instruments, the Big Bang model is at risk, for it cannot account for large, organized assemblages of quasars. (Powell, Corey S.; "X -Ray Riddle," Scientific American, 264:26, March 1991.) From Science Frontiers #79, JAN-FEB 1992 . 1992-2000 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 Fossil Ufos "Geologists have discovered strange disc-shaped features in slate deposits in California. The features, at Yreka, are between 2 and 7 centimetres across and 2 to 4 millimetres thick; some have centres stained with iron oxides. One geologist, Nancy Lindsley-Griffin of the University of Nebraska, has already dubbed the saucer-shaped features, 'unidentified fossil-like objects.' "Geologists discoverd the UFOs in bedding planes of the slate, formed from ocean bottom that was deposited between 400 and 600 million years ago. The objects are puzzling because they lack the symmetry that fossils of living organisms usually display. They are also too large to be the droppings of any creature alive at the time, and do not look like concretions, such as agates, formed by natural chemical processes. Lindsley-Griffin says they resemble very tiny bicycle wheels, with a central core and an outer rim, but with most of the spokes missing.'" One thought is that these features may be fossil jellyfish. (Anonymous; "Fossil 'UFOs' Mystify the Geologists," New Scientist, p. 43, July 1, 1989.) From Science Frontiers #65, SEP-OCT 1989 . 1989-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Army ants: a collective intelligence?Put a hundred army ants on a flat surface and they will walk around in never decreasing circles until they die from exhaustion. But a colony of a million army ants is a sophisticated "super-organism." The colony carries out its legendary raids and can even keep nest temperatures constant to within a degree. An army ant colony seems en dowed with an intelligence far beyond that of any individual ant. N.R .Franks speculates thus: "It seems that intelligence, natural or artificial, is an emergent property of collective communication. Human con-sciousness itself may be an epiphenomenon of extraordinary processing power. Although experts prefer to avoid simplistic definitions of intelligence, it seems clear that all intelligence involves the rational manipulation of symbolic information. This is exactly what happens when army ants pass information from individual to individual through the 'writing' and 'reading' of symbols, often in the form of chemical messengers or trail pheromones, which act as stimuli for changing behavior patterns." During its 20-day stationary phase, an army ant colony scatters about 14 foraging raids directed 123 apart. The heavy line indicates the colony's path during the nomadic phase. In the body of his article, Franks describes two remarkable capabilities of an army ant colony: time-keeping and navigation. The outward manisfestation of time-keeping is in the precise timing of the colony' ...
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... Sourcebook Project Sourcebook Subjects Biogenic Minerals We generally think of minerals as having been formed by purely inorganic processes. Only once, on p.000. where biogenic stalactites were described, have we persued the idea that minerals, including crystal forms, might be biogenic. We now have at hand a survey of biogenic minerals. It turns out that biogenic minerals are quite common - so common, in fact, that the Gaia concept is recalled, in which biological processes preside over much that happens upon this planet. Here follows a sampler of some biogenic minerals: Much, if not all, travertine (calcite and/or aragonite) and silicious sinter (opal) are deposited through algal action. Much pyrite and marcasite in sedimentary rocks comes from bacterial sulfate reduction. Bacterial breakdown of oil produces organic complexes that dissolve, transport, and precipitate quartz. The reknowned Herkimer "diamonds" may be of biological origin. Living cells synthesize isometric crystals of magnetite. Mitochondria manufacture crystals of hydroxylapatite. Better known are the apatite in bones and teeth and the aragonite, calcite, or fluorite in the vestibular systems of vertebrates. (Dietrich, R.V ., and Chamberlain, Steven C.; "Are Cultured Pearls Mineral?" Rocks and Minerals , 64:386, September/October 1989. Cr. R. Calais) From Science Frontiers #66, NOV-DEC 1989 . 1989-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 69: May-Jun 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Deep-sixing another hypothesis?T. Gold once said, "In choosing a hypothesis, there isn't any virtue in being timid." Neither have the Swedes been timid in following Gold's lead by drilling for natural gas in the granite of central Sweden. All the experts pre-dicted this quest would come to naught, because there are no source rocks in the area containing biological materials from which the gas could have been generated. But Gold does not believe that the methane in natural gas comes from buried organic debris. Rather, most methane is primordial and abiogenic, a legacy left deep in the earth's crust when our planet was formed. The 72-kilometer-diameter Siljan Ring in central Sweden is generally believed to be of meteoric origin. The granite here has been shattered, perhaps to a depth of 40 kilometers. If Gold's hypo-thesis about the origin of methane is correct, methane might well be found seeping up through this wound in the earth's outer skin. Further, the shattered granite might prove to be a gigantic reservoir of valuable methane. The Swedes decided to drill. After three years and the expendi-ture of $40 million, drilling at the Siljan Ring has been terminated. The drill penetrated to 6.8 kilometers before it got stuck. No significant methane had been found. The experts snickered! But the story is not finished ...
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... patently ridiculous, and Gold's idea got nowhere. However, recent experiments confirm that the human ear does indeed emit a tone at about 15,000 Hz. Another, more recent, proposal for research on the behavior of hydrocarbons under high temperatures and pressures got very high marks from reviewers on all points but one: Should the proposal be funded? Several reviewers thought not; one saying that the whole idea was "misguided." In what way was Gold misguided? Well, it seems that his proposed work on hydrocarbons related to his idea that primordial hydrocarbons deep in the earth's crust contribute heavily to the reservoirs of oil and methane we tap on the planet's surface. And everyone knows that all oil and gas is biogenic; that is, derived from buried organic matter! Gold has concluded that "not all is well" with American science. (Gold, Thomas; "New Ideas in Science, "Journal of Scientific Exploration, 3:103, 1989.) From Science Frontiers #68, MAR-APR 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 67: Jan-Feb 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Really-deep rivers "Ecologists studying rivers have discovered a vast subterranean world filled with dozens of previously unknown species of worms, shrimp, insects and microscopic organisms that live in the groundwater below the stream channel and sometimes for miles on each side." The quotation above once again evokes the concept of "crevicular structure" in the crust. The crevicular world is that immense, unappreciated maze of underground space created by cracks in the rocks, solution channels, permeable gravels, and so on. In the article reviewed here, a crevicular realm has been discovered underneath river beds. But this is just a special case of a subterranean world found many places beneath the surface -- even under the continental shelves. The surface waters we see are just (to use an aquatic metaphor) the tip of the iceberg! Sub-river life lives far under the beds of the great Alaskan rivers and even small desert streams in Arizona. Preliminary exploration has shown that fluid-and life-filled crevicular structure exists at least 30 feet under river beds and may extend several miles to either side. For example, water wells drilled two miles from the Flathead River, in Montana, yield immature stoneflies. J. Stanford, Director of Montana's Flathead Lake Biological Station states, "We have basically enlarged the concept of what a river is." He and his colleagues have found at least a dozen new species in the crevicular ...
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... per millilitre in natural waters. These concentrations indicate that virus infection may be an important factor in the ecological control of planktonic microorganisms, and that viruses might mediate genetic exchange among bacteria in natural aquatic environments." (Bergh, Oivind, et al; "High Abundance of Viruses Found in Aquatic Environments," Nature, 340:467, 1989.) A sip of water could therefore introduce a billion virus particles into your stomach! This level of virus density in natural water is about 10 million times that formerly estimated. Besides reducing your thirst, what are the implications of this discovery? First, it suggests that bacteria in natural waters are probably kept in check by viruses as well as protozoans. So far, this sounds good. Second, since viruses can ferry genetic material between organisms via transduction (i .e ., host DNA is carried to the next host). This means that genes for antibody resistance and increased bacterial virulence (as present in sewage) may be spread quickly and widely. Also, "engineered bacteria" proposed for use in agriculture, viz., the ice-minus bacterium created to protect strawberries, may die, but their new genes will soon be everywhere. (Weiss, R.; "Aquatic Viruses Unexpectedly Abundant," Science News, 136: 100, 1989.) From Science Frontiers #66, NOV-DEC 1989 . 1989-2000 William R. Corliss ...
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... Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Black gold -- again The Siljan Ring and T. Gold are back in the news again. A few years ago, at Gold's instigation, private investors and the Swedish govenment put up money to drill for oil and gas at the Siljan Ring, some 200 kilometers northwest of Stockholm. This granitic region is a meteor-created, shattered scar on the earth's crust. It is in just such a spot that Gold expects to find abiogenic petroleum and methane seeping upward from deep inside the earth, where they have resided since the earth was formed. Con-ventional petroleum geologists have roundly ridiculed the Siljan Ring project; after all, everyone knows that oil and gas derive from buried organic matter. Three years ago, at a depth of 6.7 kilometers, the "misguided" Swedish drillers pumped 12 tons of oily sludge from the granite rock. "Just drilling fluids and diesel-oil pumped down from the surface," laughed the experts. This autumn (1991), more oil was struck in a new hole only 2.8 kilometers deep. This time, only water was used to lubricate the drill. How are the skeptics going to explain this? Well, about 20 kilometers away, there are sedimentary rocks; perhaps the oil seeped into the granite from there. Rejecting this interpretation, the drillers are going deeper in hopes of finding primordial methane. (Aldhous, Peter; "Black Gold Causes a Stir," Nature, 353:593 ...
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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 Eclipse shadow-band anomalies Shadow bands moving across the face of a house during the total eclipse of December 22, 1870. J.L . Codona, in a long article in Sky and Telescope, described eclipse shadow bands in these words: "There mysterious gray ripples are sometimes seen flitting over the ground within a minute or two of to tality. The bands are initially faint and jumbled; but as totality approaches, they become more organized, their spacing decreases to a few centimeters, and their visibility improves. After totality ends the bands can reappear and become progressively fainter and more disorganized until they disappear. "Shadow bands seem to move perpendicularly to their length, but this is only an illusion. It stems from a lack of features that allow the eye to track motion along the length of the bands." Codona explains the shadow bands as basically a twinkling effect involving the thin solar crescent just before and after totality. The twinkling is created by turbulence only tens or hundreds of feet above the ground. The eclipse shadow bands, like so many other "well-explained" phenomena, display idiosyncracies that do not dovetail well with theory. Codona mentions two of these: (1 ) Bands of different colors, travelling at different speeds, are sometimes seen superimposed on each other; and (2 ) Bands of giant size have been observed. (Codona, Johana L.; "The Enigma of Shadow ...
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... 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, did the better blood cooling system develop in response to an enlarging brain, or vice versa? Even more seriously, it is simplistic to say that an organism just went ahead and evolved this way or that way. A bigger brain requires not only more cooling but a bigger skull, more neurons, more connections between them, and additional infrastructure. Saying simply that "a larger brain evolved" obscures the fact that many different, inheritable changes had to take place in synchronism. From Science Frontiers #77, SEP-OCT 1991 . 1991-2000 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 Cosmic Soot And Organic Asteroids Just as we were getting used to carbonaceous chondrites and tarry comets, we have been hit with cosmic soot and organic asteroids. Truly, it seems as if the universe is one vast factory of complex chemicals. This is not a trivial observation, for it betrays a synthesizing, efflorescent cosmos rather than a universe slowly succumbing to the deepfreezing Second Law of Thermodynamics. Any of these soots and tars wafting down upon the surface of a suitable planet might initiate or accelerate life processes. Cosmic soot. A 70-year-old astronomical enigma is the origin of the DIBs (Diffuse Interstellar absorption Bands). These dark absorption bands in stellar spectra have never been correlated with known chemical compounds. Now, L. Allamandola and F. Salama (NASA-Ames) find that the DIBs may be due to polycyclic aromatic hydrocarbons! A more digestible descriptor would be "soot," like that found in automobile exhaust and on your barbecued steak. (Weiss, Peter; "Cosmic Soot Fills Space between the Stars," New Scientist, p. 15, March 13, 1993.) Organic asteroids. Some asteroids are abnormally red. Newly discovered asteroid 5145 Pholus is 3 times brighter at near-infrared wavelengths than it is in the visible portion of the spectrum. The best explanation so far for this redness is that 5145 Pholus is veneered with organic compounds called "tholins." Tholins are synthesized ...
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... Science Frontiers ONLINE No. 82: Jul-Aug 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The humongous organism contest!When we read of that 10,000-kilogram fungus discovered in Michigan, it sounded like a good item for Science Frontiers. But then it was described as the "largest and oldest living organism," and we knew that if we waited a couple months this Guinness-like record would be eclipsed. (Superlatives are risky in this business!) A killer fungus in Washington State. In the foothills of Mount Adams, a specimen of the fungus Armillaria ostoyae covers 1,500 acres and seems to be 400-1 ,000 years old, as comapred to the 38-acre, 1,500-year-old Michigan fungus. Although younger than its Michigan counterpart, the Washington fungus is lethal and can wipe out whole populations of trees. (Anonymous; "The Great Fungus," Nature, May 21, 1992.) Comment. It has also been reported that a huge, spreading, pathological growth exists in Washington, DC ! Some even more humongous plants. "A grass clone, Holcus mollis , has been found with a diameter of 900 metres and an age of over 1000 years. A clone of box-huckleberry has been found with a diameter of 2000 metres and an age of 13 000 years. The big granddaddy is, however, an aspen ( Populus fremaloides ) covering 81 hectares and over 10 000 years old." (Bullock, James; ...
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... Science Frontiers ONLINE No. 80: Mar-Apr 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Life-creation from a different perspective The preceding discussion of life's origin 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, ...
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... is transmitted through the material they are resting on. You and I cannot hear caterpillar songs, but some ants can, and they are attracted to these insect sirens. The singing caterpillars belong to the Lycaenidae, which include such butterflies as the hairstreaks and blues. It is not only the singing or vibrating of this group of caterpillars that makes them remarkable, it is the complexity of their symbiotic relationships with several species of ants and a plant. Since both the ants and the caterpillars favor the Croton plant, they could well meet by chance, but the caterpillars' singing serves to accelerate contact. Once met on the Croton plant, a fascinating triangle is completed. Player 1. The Croton plant provides nourishment to the caterpillars through both its leaves and specially evolved nectaries (nectar-producing organs), but receives nothing in return. The ants also dote on the nectaries, but they at least protect the plant from all herbivorous insects except the singing caterpillars. Player 2. The ants get food from both the Croton plant and the caterpillars. The latter have evolved extrudable glands called "nectary organs." For their part of the bargain, the ants protect the caterpillar from predatory wasps, just as they defend the Croton plant from its enemies. Player 3. The caterpillars, though seemingly benign, are the heavies in this menage-a -trois! They get both leaves and nectar from the plant for nothing. They do supply the ants with nectar in exchange for protection, but subtle subversion prevails here! First they attract the ants with their songs; then, ...
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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 Self-organized stone stripes "Geometrically regular stripes of stones are found on many unvegetated alpine and polar hillslopes; known as 'sorted stripes' because of the characteristic textural sorting between surface stones and fine-grained soil, they contrast markedly with the lack of order typical of natural landscapes. The spacing of the stripes can range from centimeters to meters (about 10-20 times the average stone diameter), with individual stripes extending downslope for many tens of meters. A variety of formative mechanisms have been proposed, but it is still unclear how such orderly stripes can arise spontaneously, and what dictates the spacing." B.T . Werner and B. Hallet, authors of the foregoing partial abstract, have mathematically simulated the displacement of surface stones under the forces generated by the growth of needle ice in the underlying soil. As the number of freeze-thaw cycles increases into the thousands, computer simulations show the surface stones gradually arraying themselves into linear patterns. (Werner, B.T ., and Hallet, B.; "Numerical Simulation of Self-Organized Stone Stripes," Nature, 361:142, 1993.) Reference. These stone stripes represent just one type of "patterned ground." Other examples may be found in ETP1 in our catalog: Carolina Bays, Mima Mounds, described here . From Science Frontiers #88, JUL-AUG 1993 . 1993-2000 William R. Corliss ...
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... , 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 badly mismatched to the infrared of the vent glow. It is a truism that nature is a perfectionist and would not tolerate such bad design. The eyes of animals are always well-tuned to their ways ...
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... Science Frontiers ONLINE No. 80: Mar-Apr 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Archaea: the living ancestors of all life forms Life's place of origin may soon shift from that long-favored "warm little pond" to undersea hydrothermal vents. "Important new discoveries on the properties of the early earth and atmosphere, including the frequency and size of bolide impacts, have strongly implicated submarine hydrothermal vent systems as the likely habitat for the earliest organisms and ecosystems, while stimulating considerable discussion, hypotheses and experiments related to chemical and biochemical evolution. Some of the key questions regarding the origins of life at submarine hydrothermal vent environments are focussed on the effects of temperature on synthesis and stability of organic compounds and the characteristics of the earliest organisms on earth. There is strong molecular and physiological evidence from present-day mircoorganisms that the earliest organisms on earth were capable of growing at high temperatures (about 90 C) and under conditions found in volcanic environments. These 'Archaea', the living ancestors of all life forms, display a variety of strategies for growth and survival at high temperatures, including thermostable enzymes active at temperatures about 140 C. Further molecular and biochemical characterization of the presently cultured thermophiles, as well as future work with the many species, particularly from subsurface crustal environments, not yet isolated in culture, may help resolve some of the important questions regarding the nature of the first organisms that evolved on earth." (Baross, J.A .; "Hyperthermophilic Archaea: Implications for the ...
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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 The star of the star-nosed mole (Left) Tenticle-like rays surrounding one nostril of the star-like mole. (Right) The number of rays around the other nostril give the density of sensory receptors. The star-nosed mole is one of North America's more bizarre mammals. Its nostrils are surrounded by mobile, Medusa-like appendages that are richly suppled with nerves and blood vessels. These tentacle-like structures form the "star," which has long been considered a tactile organ used for feeling for prey. However, behavioral experiments by E. Gould et al indicate that the star may be more than a tactile organ. It seems to sport electrical sensors that detect the minute electrical fields surrounding worms, leeches, insect larvae, and other favorite mole tidbits. This conclusion derives from experiments in which starnosed moles preferentially attacked the parts of worms that are most strongly electrical. Actually, scientists have been puzzled as to how this mole found its prey, for this mammal is semiaquatic and somehow locates its dinner in muddy water even though it has poor eyesight. Although some fish possess electrical sensors, they are uncommon in mammals. Half way around the planet, another strange creature, also classified with the mammals, frequents muddy waters looking for the same sort of prey favored by the star-nosed mole. The Australian platypus also has weak vision and employs search techniques similar to those of ...
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... Science Frontiers ONLINE No. 81: May-Jun 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The tyranny of the [normal] senses R.O . Becker, author of Cross Currents , has contributed a thought-provoking article on the mechanisms by which humans perceive the cosmos. From the many stimulating ideas he presented, we select his rationale for believing that an electromagnetic basis may exist for the reception and processing of psi signals. A key concept in Becker's scheme is his belief in the presence, in humans and other organisms, of a dual system for receiving and processing information arriving from the environment. The system we are all aware of and which scientists study in depth is the nerve impulse system, which transmits digital signals; i.e ., 0s and 1s. This system connects to all our everyday senses and controls our motor functions. The second system Becker designates as "primitive." It transmits information in analog (continuously varying) form via electrical currents and magnetic fields, rather than as impulses along neurons. This second system is not recognized by mainstream science. Becker advances the notions that: (1 ) Psi-type phenomena are actually handled by the "primitive" analog system; (2 ) The flood of information normally arriving from our sensory organs via the "modern" digital system masks the psi-type signals; and (3 ) These assertions are consistent with the elusive nature of psi phenomena in both everyday experience and the parapsychological laboratories. Becker's ideas also ...
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... the lab with the flasks, they were more friendly and relaxed than normal. He could not divine the reason until some months later when he decided to cover the flasks of skin-derived substances. Curiously, the lab workers soon reverted to their usual grumpy selves! What could account for this strange behavior change? Knowing that animals often communicated with one another employing chemicals called pheromones, Berliner suspected that the flasks had been releasing odorless human pheromones. Sure enough, analysis of the skin-derived materials proved him correct. Next: A Look Up the Nose. Biologists have long realized that animal noses actually contain two sensory channels. The first is the familiar olfactory system, which humans also possess. The second channel is the vomeronasal system. In animals, each system has its own separate organs, nerves, and bumps in the brain. The function of the vomeronasal system is pheromone detection. It was widely believed that humans had long ago discarded this sensory system along evolution's trail. But a closer look at the human nose by B. Jafek and D. Moran, affiliated with the Rocky Mountain Taste and Smell Center at the University of Colorado, revealed that all humans examined displayed two tiny pits on both sides of the septum, just inside the the opening of the nose. Behind the holes were tubes lined with unique cells that could well be pheromone detectors, since they responded positively to puffs of air laden with pheromones. In conclusion, we humans actually do have a sixth sense, and we are all enveloped in an aura -- not the luminous aura ...
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... of its vivid verbiage -- something absent from the modern reports: "August 13, 1986. Northwest Indian Ocean. The entire sea surface took on an intense white glow which was not unlike viewing the negative of a photograph." The milky sea is a rather common phenomenon. In fact, the British Meteorological Office has established a Bioluminescence Database, which presently contains 235 reports of milky seas seen since 1915. P.J . Herring and M. Watson have employed this Database in a review paper on these impressive displays. Geographical plotting of the reports shows a strong concentration in the northwest Indian Ocean (see figure). Seasonally, there is a strong peaking in August and a secondary blip in January. The phenomenon is independent of water depth and distance from land. Surely bioluminescent organisms must be the explanation for milky seas. But most such organisms simply flash briefly and are incapable of generating the strong, steady glow of the milky sea. Marine bacteria alone glow steadily. However, calculations show that unrealistic concentrations of bacteria would be needed to generate the observed light. Furthermore, samples from the affected waters show no such bacteria. Herring and Watson admit there is no acceptable explanation of the milky sea. What, they ask, is so special about the northwest Indian Ocean? Why do milky seas not occur in the adjacent Red Sea and Persian Gulf? These bodies of water seem equally promising. (Herring, P.J ., and Watson, M.; "Milky Seas: A Bioluminescent Puzzle," Marine Observer, 63:22, 1993. ...
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... Science Frontiers ONLINE No. 83: Sep-Oct 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Distressing near-death experiences (ndes)Noting that most NDEs are touted as involving "profound feelings of peace, joy, and cosmic unity," B. Greyson and N.E . Bush have collected much contrary testimony, which they organized into three categories: "( 1 ) Phenomenology similar to peaceful near-death experiences but interpreted as unpleasant, (2 ) A sense of nonexistence or eternal void, or, (3 ) Graphic hellish landscapes and entities." One of these testimonies, from Category 3, is worth reproducing here. The percipient was a woodworker with little interest in religion, although he was married to a "religious fanatic." He had been saving for a vacation for years, but just before they were about to leave, he was arrested for drunk driving and heavily fined, losing his license and vacation savings. Distraught, he tried to hang himself. He testified: "From the roof of the utility shed in my backyard I jumped to the ground. Luckily for me I had forgot the broken lawn chair that lay near the shed. My feet hit the chair and broke my fall, or my neck would have been broken. I hung in the rope and strangled. I was outside my physical body. I saw my body hanging in the rope; it looked awful. I was terrified, could see and hear, but it was different -- hard to explain ...
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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 Early Life Surprisingly Diverse The three life forms sketched below are tiny microorganisms, not the worms they appear to be. They are thought to be bacteria, for they closely resemble modern cyanobacteria. What is most important about these fossilized micro-organisms is that they were found in the Apex chert of Western Australia. The Apex chert is designated Early Archean and assigned an age of 3.465 billion years [Four significant figures!]. It is rare to find any fossils at all in rocks this old, but apparently the Apex chert escaped most of the fossil-destroying metamorphism afflicting most Precambrian formations. Even more remarkable is the diversity of these suspected bacteria. J.W . Schopf reports finding no less than eleven different kinds so far--and our planet was only a few hundred million years old at the time the Apex chert was formed. Schopf's discoveries generate at least three questions: How could life have originated and diversified to such an extent in just a few hundred millions years? Why after such rapid diversification did these microorganisms remain essentially unchanged for the next 3.465 billion years? Such stasis, common in biology, is puzzling. If these microorganisms are really cyanobacteria, they would have released oxygen to the atmosphere. Is the standard assumption that the earth's atmosphere lacked oxygen until 2.2 billion years ago correct? (Schopf, J. William; "Microfossils of the Early ...
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... -likely, since many of the researchers reporting HIV-negative cases of AIDS are the top HIV experts in the world. Another possibility is that there is a new virus that everyone has missed. This is again unlikely given the huge amount of retroviral research that has been performed in the past decade on AIDS patients. Finally, these may be the cases that demonstrate that AIDS can be produced by the types of synergistic, multifactorial assaults on the immune system that Joseph Sonnabend and I have been proposing for years." Although most AIDS researchers are still wedded to the theory that HIV is the sole and only cause of AIDS, cracks in the stonewalling are beginning to appear. In fact, C.A . Thomas, Jr., formerly a Professor of Biochemistry at Harvard, has organized the Group for the Scientific Reassessment of the HIV/ AIDS Hypothesis. (Root-Bernstein, Robert S.; "Rethinking AIDS," Frontier Perspectives , 3:11, Fall 1992.) Comment. If Duesberg and Root-Bernstein are correct, overzealous defense of the HIV paradigm may have cost billions in misdirected research! Reference. AIDS and HIV phenomena are cataloged in BHH14-BHH22 in our catalog: Biological Anomalies: Humans II. For further information, visit: here . From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...
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... ? .. .. . "Just ask scientific and medical reporter Karl Kruszelnicki, whose theory is based on a study of 150 cats that plummeted from windows at different heights. "Falling from 32 storeys, a cat had more time to work out a plan of action, because once it reached terminal velocity and stopped accelerating, it started to relax, he said in Sydney yesterday. "Once the moggie reached top speed of 100 kmh and realised it was not speeding up any more, it spreadeagled its limbs in the perfect position for maximum wind resistance. "' Once it reaches the ground, the cat just kisses the ground on all four paws simultaneously and the shock is absorbed,' Dr. Kruszelnicki told his bemused audience at the University of New South Wales during a talk organized by the Alumni Association. "Of the 150 cats that fell from highrise buildings in New York over a five-month period, 10 per cent died, with the chances of survival rising with the distance of the fall." It seems that at least one cat per day takes the plunge in New York City, but do they jump...or are they pushed? Dr. Kruszelnicki supposed that some may have leaped at passing birds! (Anonymous; "High-Flying Cats Have the Big Drop Licked," Wellington, New Zealand, The Dominion , September 17, 1992. Cr. P. Hassall) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
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... . "At the end of the polished section was what appears to be a door, made of the same tura limestone and with tongue-and-groove fittings on the side that suggest it can be raised and lowered. It has two corroded copper fittings in the center; a piece of one fitting had broken off and was found lying in front of the stone. A small gap exists at the bottom of the stone, but the camera could not peer through it." But what could lie beyond this tiny door deep in a shaft too small for humans? Is there a hidden chamber? Might it contain the body of Khufu, builder of the Great Pyramid, whose remains have never been found? A suspicious layer of black dust outside the door suggests the past presence of organic matter. Egyptologists find the whole business "very annoying." German archeologist R. Stadelman stated, "There is surely no other chamber." Meanwhile, Gantenbrink plans to slip a fiber-optic camera through the crack under the "door" to resolve the matter. (Maugh, Thomas H., II; "A Robot's Mysterious Discovery," San Francisco Chronicle, May 2, 1993. Cr. J. Covey. Also found in the Wellington, New Zealand, Evening Post . May 1, 1993. Cr. P. Hassall.) From Science Frontiers #89, SEP-OCT 1993 . 1993-2000 William R. Corliss ...
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... evolved a "jamming avoidance response," in which they both shift their pulse frequencies away from each other. To accomplish this, the fish must be able to detect time disparities between the two sets of signals less than 1 microsecond long. Their individual electroreceptors are not capable of handling such small time differences. Kawasaki has concluded that the jamming avoidance response can come only from highly sophisticated signal processing in the fish's central nervous system. (Kawasaki, Masashi; "Temporal Hyperacuity in the Gymnotiform Electric Fish Eigenmannia ," American Zoologist , 33:86, 1993.) Comment. Echo-locating bats and dolphins also possess sophisticated data processing apparatus for analyzing the echos they receive back from their prey and surroundings. It will be interesting to discover if evolution has come up with similar organic "components" for handling acoustic and electric signals. Further, we know that some insects have developed ears and sound generators to detect and jam hunting bats. Have the prey of electric fish evolved corresponding countermeasures? If not, why not? From Science Frontiers #89, SEP-OCT 1993 . 1993-2000 William R. Corliss ...
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... Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Puzzling Winds The Amazon jungle seems to be receiving more than its share of natural calamities. Remember the meteor-devastated swaths and strange "crater" reported in SF#103? Well, here's another phenomenon that may or may not be related. "Scientists studying weather patterns in the Amazon Basin have detected extremely powerful, sudden bursts of wind over the rainforest. The winds, which appear to be associated with thunderstorms in the northwest part of Brazil, blow downward with tremendous force. Satellite photos indicate that a single episode demolished 10 square miles of jungle in only 20 minutes." (Anonymous; INFO Journal, no. 74, p. 39, Winter 1996. INFO = International Fortean Organization. Source cited: Alexandria Journal, June 30, 1995) From Science Frontiers #104, MAR-APR 1996 . 1996-2000 William R. Corliss ...
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... I were walking along a beach. As we walked on the littoral zone -- the part of the beach between low and high tides -- strange blue lights lit up around our feet as we stepped on the sand. The lights were similar to lightning and the harder we stepped on the ground the more intense the blue lights became. Nobody has been able to provide us with a satisfactory explanation and, no, we were not under the influence of any drugs. Just what was happening?" (Roman, Suzanne; "Bright Sparks," New Scientist, inside back cover, January 13, 1996) Comment. A similar phenomenon was observed at Blundellsands, England, on June 5, 1902, when tiny flames erupted from a mud flat. Spontaneously igniting methane from buried organic matter is a possible explanation. See GLN1-X36 in Lightning, Auroras. For more information on this catalog, visit: here . From Science Frontiers #104, MAR-APR 1996 . 1996-2000 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 The Hunt For The Magnetoreceptor When magnetite particles were found in organisms from bacteria to bats, it was assumed that here was the long sought magnetoreceptor which animals used for magnetic navigation. But so far, biologists do not have the slightest notion how such magnetite particles can be turned into a "magnetic sense," which sends the brain information on the direction of the geomagnetic field or, perhaps, draws a magnetic map of sorts. A completely different sort of magnetreceptor is now under investigation, one that humans may also unknowingly possess. It utilizes special photoreceptors that employ an electron-spin resonance process which is modulated by the geomagnetic field. Some of our very sensitive magnetometers use similar phenomena. The biological version of such a receptor would be connected to the brain, as the eye is, and send signals as to the direction of the earth's magnetic field. Sounds interesting, but is there any basis for thinking such a sophisticated gadget could have evolved? It seems that some experiments with newts by J.B . Phillips and S.C . Borland support the idea. The newts were first trained to orient themselves in a certain direction with respect to the geomagnetic field. "When tested under one of four artificial field alignments (magnetic north at geographic north, east, south or west), the newts kept their training directions constant relative to the magnetic rather than the geographic system of reference, but they selected ...
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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 Zuni Enigma The Zuni sacred rosette (top) closely resembles Japan's national symbol, a stylized chrysanthemum (bottom) The Zunis of New Mexico are different from other Native Americans in many ways. In an impressive, very detailed paper in the NEARA Journal, N.Y . Davis summarizes her investigation of these anomalies as follows: ". .. evidence suggesting Asian admixture is found in Zuni biology, lexicon, religion, social organization, and oral traditions of migration. Possible cultural and language links of Zuni to California, the social disruption at the end of the Heian period of the 12th century in Japan, the size of Japanese ships at the time of proposed migration, the cluster of significant changes in the late 13th century in Zuni, all lend further credibility to a relatively late prehistoric contact." We cannot delve into all classes of evidence adduced by Davis. Let us focus on the Zuni biological anomalies: Skeletal remains. These show a significant change in Zuni physical characteristics from 1250-1400 AD, suggesting the arrival of a new element in the Zuni population. Dentition. Three tooth features of the Zunis lie midway between those of Asians and other Native Americans; namely, shoveling, Carabelli's cusp, and 5-cusp pattern on the lower second molar. Blood-group characteristics. Blood Type B is frequent in East Asian populations but nearly absent in most Native Americans. Zuni, on ...
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... Science Frontiers ONLINE No. 86: Mar-Apr 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects How A Fly Hears What A Cricket Hears As we all know, male crickets chirp long and loud for mates from spring until fall. That many males are successful in attracting females is obvious from this insect's population levels. Some of the singing males, however, attract parasitic flies that home in on their songs and deposit their maggots on or near them. Within 10 days, these singers are silent -- they have been consumed by the maggots. The really interesting part of this tale involves the hearing organs of the crickets and flies. Normally, they are radically different in design and frequency of operation. Crickets usually sing at frequencies above 3 kilohertz, and their ears are attuned to these high frequencies. The usual fly, on the other hand, hums and buzzes at only 100-500 hertz (cycles per second). Their ears are duly optimized at these frequencies. The cricket-hunting flies (genus Ormia ), however, would starve to death if they couldn't hear the highpitched cricket songs. Their response was to "evolve" a cricket-type ear so they could home in on their prey. This is a remarkable example of evolutionary convergence. (Robert, Daniel, et al; "The Evolutionary Convergence of Hearing in a Parasitoid Fly and Its Cricket Host," Science, 258:1135, 1992.) Comment. How did the parasitic flies survive until they evolved ...
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... deposit. (Duhig, Nathan C., et al; "Microbial Involvement in the Formation of Cambrian Sea-Floor Silica-Iron Oxide Deposits," Geology , 20:511, 1992.) Deeper implications. The formation of placer gold and ironstone are only part of the repertoire of deep-living microorganisms. A five-year survey of microbial life conducted by the U.S . Department of Energy (DOE) found that bacteria were everywhere -- even 3 kilo meters deep in a Virginia borehole. F. Wobber, the DOE manager of the project underscored the mystery and probable importance of "biogeology": "Besides asking how subsurface bacteria affect geology, he wonders how geologic processes could have carried living things so deep into the planet. 'When you find these organisms at great depths,' he says, 'you have to ask: Where did they come from?' Microbes from the soil could easily infiltrate shallow aquifers...but in very deep sediments, like those in the Texaco well, the microbes may have been entombed when the rock was first deposited, tens or hundreds of millions of years ago. If so, the deep Earth might be a den of survivors, toughened by millenia of evolution in their harsh environment. Attacking rock might be just one of their feats. (Appenzeller, Tim; "Deep-Living Microbes Mount a Relentless Attack on Rock," Science, 258:222. 1992.) Comment. Is Wobber suggesting that these super-tough, deep-living bacteria might be dangerous to humans, ...
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... How did they do it? It was quickly ruled out that they were following specific ocean currents or the bottom topography. The hammerheads seemed to possess some sort of unrecognized navigation sense. Suspecting they might be sensing the geomagnetic field, Klimley began towing a magne tometer behind the boat. Sure enough, the hammerheads were following paths coincident with lines of high magnetic gradient. And Espiritu Santo itself turned out to be a sort of magnetic beacon from which radiated these magnetic "paths" that the hammerheads followed so exactly. Now the question became: How do hammerheads -- and perhaps other animals -- sense such exceedingly small changes in the geomagnetic field? Some birds and mammals do have small particles of magnetite in their bodies, but no one knows how they might be incorporated into a sensory organ. On the other hand, hammerheads and many other sharks are extraordinarily sensitive to electrical fields, responding to fields as low as 10-8 volt/centimeter. Possibly the sharks' forward motion cuts the magnetic lines of force generating an electrical navigational signal. No one knows as yet. And so one mystery leads to another. (Klimley, A. Peter; "Hammerhead City," Natural History, 104:33, October 1995) Comment. Some marine biologists suspect that some deep-water whales and dolphins inadvertently strand themselves while following magnetic "paths" like those radiating from Espiritu Santo. (See SF#38) From Science Frontiers #104, MAR-APR 1996 . 1996-2000 William R. Corliss ...
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... at the Australia Telescope National Facility, while surveying just 16 regions of the Milky Way between 5,000 and 30,000 light years, detected a dozen intense methanol masers (6 .7 -12.2 gigahertz) arranged in lines. Early thinking is that these maser spots decorate the discs of gas clouds surrounding nascent stars. In other words, maser spots could be protoplanets. Given the small area of the sky sampled by Norris and Whiteoak, maser spots may be very common. (Dayton, Leigh; "Microwaves May Mark Position of Protoplanets," New Scientist, p. 16, July 10, 1993.) Questions. Whence all this interstellar methanol? And where does it all go when the protoplanets coalesce into planets? Could these molecular clouds also contain those other organic compounds necessary for the creation and development of life? If so, we can speculate that life may originate often and repeatedly as stars and planets are born. From Science Frontiers #90, NOV-DEC 1993 . 1993-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 133: JAN-FEB 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Superorganisms: From Simplicity To Complexity Superorganisms are biological entities made up of large numbers of simpler entities that have banded together to perform functions they cannot do as individuals. Termite mounds are often mentioned as superoganisms. But here we examine colonies of organisms that are much simpler and much smaller than termites. What entices the anomalist to attend to superorganisms? Here are two of the several questions superorganisms raise. How do superorganisms evolve properties that its constituent individuals do not possess, such as mobility, unique sensors, and even a modicum of intelligence. Since superorganisms do not reproduce as superorganisms, how can natural selection operate on these superorganisms? Salps. Books dealing with the unexplained sometimes include a photograph of a huge marine creature identified as a sea monster. This famous photo is real and so is the monster in it. But this creature is not reptilian; it is really a salp, a colonial tunicate. Tunicates are tiny, primitive marine organisms usually classified as invertebrates. Some species of tunicates have somehow acquired the habit of aggregating in immense numbers to create long, hollow, snake-like tubes called "salpa." Salps may reach lengths of 45 feet, with diameters of 3 feet. No wonder they are falsely identified as sea monsters. Structurally, the tunicates comprising the salp are embedded in a gelatinous wall facing inward. Each possesses a siphon that pumps nutrient-carrying sea water. Working in unison, the tunicates create ...
Terms matched: 1 - Score: 100 - 15 May 2017 - URL: /sf133/sf133p08.htm
... microevolution"). J.A . Shapiro, a professor at the University of Chicago, is searching for a "third way," a scientific, non-Darwinian way. Shapiro maintains that five decades of genetic and molecular-biology research have transformed our vision of life. Ile compares the conceptual changes to those accompanying the transition from classical physics to relativity and quantum mechanics. This new theory of evolution -- his "third" way -- will emerge from the convergence of biology and information science. Genomes, asserts Shapiro, are not really the static "beads on a string" envisioned by the Darwinians. Rather, they are fluid and complex. Genes are now seen as multipurpose elements that turn on and off as required for the survival and well-being of the organism they belong to. In this paradigm-eroding paper (referenced below), Shapiro describes four categories of molecular discoveries that have revised our thinking about how evolution works: (1 ) Genome Organization; (2 ) Cellular-Repair Capabilities; (3 ) Mobile Genetic Elements and Natural Genetic Engineering; and (4 ) Cellular Information Processing. He then writes: The point of this discussion is that our current knowledge of genetic change is fundamentally at variance with neo-Darwinist postulates. We have progressed from the Constant Genome, subject only to random, localized changes at a more or less constant mutation rate, to the Fluid Genome, subject to episodic, massive and non-random reorganizations capable of producing new functional architectures. Inevitably, such a profound advance in awareness of genetic capabilities ...
Terms matched: 1 - Score: 35 - 15 May 2017 - URL: /sf129/sf129p07.htm
... Science Frontiers ONLINE No. 106: Jul-Aug 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A SAGA OF SOOT: PART III "For the first time, researchers have found complex organic molecules on the Earth that came from outside the Solar System. American scientists say tiny sooty grains extracted from meteorites contain polycyclic aromatic hydrocarbons (PAHs) from interstellar dust clouds." This article continues with an acknowledgement that F. Hoyle did predict way back in the 1950s that some of earth's organic matter came from outer space. And that he was roundly scoffed at. Next, more evidence is presented suggesting that the universe is full of the basic ingredients of life: Recently, the spectrum of the amino acid glycine was detected near the center of our galaxy. (Hecht, Jeff; "Stardust Brought Down to Earth," New Scientist, p. 17, March 23, 1996) Cross reference. IN SF#101, we related how PAHs were found in meteorite ALH84001, which was picked up in the Antarctic, and which is believed to have originated on Mars. From Science Frontiers #106, JUL-AUG 1996 . 1996-2000 William R. Corliss ...
Terms matched: 1 - Score: 27 - 15 May 2017 - URL: /sf106/sf106p04.htm
