697 results found.
... 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 Galaxy Spins Wrong Way We have all seen impressive photographs of spiral galaxies with their whirlpool patterns. One can easily imagine them spinning ponderously, with streams of stars spiraling out behind the rotating core. This picture is intuitively satisfying from a mechanical point of view. But: "A galaxy with a spiral arm going the wrong way has been found by astroomers in the U.S . Spiral arms usually trail behind as a galaxy turns, but in NGC 4622 an inner arm is wrapped round the galaxy in the direction it is rotating." (Mitton, Simon; "Puzzle of Galaxy That Points Two ways," New Scientist, p. 22, February 29, 1992.) From Science Frontiers #81, MAY-JUN 1992 . 1992-2000 William R. Corliss ...
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... is carried by the circuitry of the nervous system, the intensity and duration of the pain may be somewhat modulated by the ambient homoral signals. In this respect, acupuncture may also be a phenomenon that is dependent on volume transmission." (Agnati, Luigi F., et al; "Volume Transmission in the Brain," American Scientist, 80:362, 1992.) Questions. (1 ) Is there a connection between volume transmission and the analog transmission of brain signals hypothesized by R.O . Becker (SF#81)? (2 ) Can a computer really be programmed to think like a human if it is all wires without something analogous to volume transmission; i.e . is artificial intelligence really possible? (3 ) How and why did at least two forms of information transmission evolve? (4 ) Might there still be other modes of information transmission and processing in the brain -- perhaps something associated with genius, psi, or intuition? From Science Frontiers #85, JAN-FEB 1993 . 1993-2000 William R. Corliss ...
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... dyslexia. The 17year-old boy, known as AS, is the first person shown to be dyslexic in one language but not another." AS has English-speaking parents but lives in Japan, where he attends Japanese primary school. He scores poorly in reading English, even lagging behind his Japanese schoolmates, but he understands English like a native. AS is also taught to read the Japanese form of writing called "kanji", in which the symbols carry meaning but have no phonetic value - unlike written English. Curiously, AS reads kanji easily, exhibiting no problems in his visual processing skills. He also does well with the other type of Japanese writing called "kana", where symbols do correspond to certain sounds. Written English is the problem! AS presents psychologists with two enigmas: If, as currently believed, a specific part of the brain is reserved for reading, and a person has trouble with one language, it seems logical that he should have difficulties with all languages. The conventional theory of dyslexia asserts that it is associated with visual processing. If so, AS should find kanji even more troublesome than English. (Motluk, Alison; "Why English Is So Hard on the Brain," New Scientist, p. 14, January 20, 1996) From Science Frontiers #105, MAY-JUN 1996 . 1996-2000 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 Late Survival Of Mammoths Many a sensational article has been written about how the Siberian mammoth population was deep-frozen by a sudden climate change due to a shift in the earth's poles or some other catastrophic event circa 10,000 years ago. But now, Russian scientist A. Sher and two colleagues claim that a dwarf version of the wooly mammoth survived on Wrangel Island, 120 miles off the Siberian coast until about 3,700 years ago. The Wrangel Island dwarf mammoths stood only about 2 meters high and weighed 2 tons. The British mammoth expert, A. Lister, said he was not really surprised at this discovery, because many islands supported dwarf versions of mainland animals during the Ice Ages. (Crenson, Matt; "A Mammoth Discovery," Dallas Morning News, p. 22A, March 25, 1993. Cr. L. Anderson. Also: Bower, B.; "' Dwarf' Mammoths Outlived Last Ice Age," Science News, 143:197, 1993.) Comment 1. If the full-size Siberian mammoths really met their demise because of a catastrophic climate change, how did the dwarf mammoths occupying the same region escape? Comment 2. Lister's remark about other dwarf island inhabitants brings to mind the dwarf elephants of Santa Rosa, off the Californian coast, which apparently were the main course in early human feasts. But, curiously, island isolation also ...
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... bones are layers of charcoal (easily carbondated) and hints of human occupation. But don't we all know that humans did not arrive in the New World until 12,000 years ago? Nevertheless, there they are: (1 ) rude human tools; and (2 ) a possible human palm print. Mainstream archeologists are stonewalling again; there must be some mistake! (Appenzeller, Tim; " A High Five from the First New World Settlers?" Science, 255:920, 1992.) Scene: Inside Amerind cells. DNA analyses of the mitochondria present in the cells of North American Indian populations indicate that the Eskimo-Aleut and Nadene populations arrived about 7,500 years ago. The more geographically widespread Amerind population, however, seems to be descended from two separate influxes; the first about 30,000 years ago, the second about 10,000 years ago. D. Wallace, from Emory University, surmises that the sharply defined rise of the Clovis culture, conventionally dated from 12,000 years ago, may have resulted from the second Amerind immigration. (Lewin, Roger; "Mitochondria Tell the Tale of Migrations to America," New Scientist, p. 16, February 22, 1992.) Comment. The 30,000-year date, however, is consistent with MacNeish's discoveries at the Orogrande Cave. Hang in there archeology anomalists, the 12,000year paradigm is melting in the warm spring sun! Scene: In the Bluefish Caves in the northern Yukon. "Arctic caves in the northern Yukon have ...
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... Science Frontiers ONLINE No. 105: May-Jun 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Arboreal Internets Over a half century ago, Yale scientist H.S . Burr was inserting electrodes into trees to measure how voltage differences varied during the day and lunar month. Y. Miwa, at Waseda University in Tokyo, has gone more than one step farther. He and his coworkers have placed electrodes in the trunks of trees - 250 trees at a time - and measured the voltage differences every 2 seconds. They have discerned intriguing synchrony. "Miwa and his colleages studied primeval forests in Japan's Shizuoka and Nigata Prefectures, recording signals for two days at a time. In each forest, there were several groups of between 20 and 50 trees showing a similar pattern of changes in their potentials, each of which contained about half a dozen species. Neighboring trees were the most likely to be synchronized, but the groups did not have rigid boundaries. The membership of the groups was also not fixed: between the first and second days of recording, individual trees 'joined' and 'dropped out'." Miwa advances the idea that the trees must somehow be communicating with each other to achieve this synchrony. Botanists, though, suspect that environmental conditions force this coordinated behavior. Miwa will next remove a few members from each group to see if his arbicides are noticed by the neighbors. (Endo, Shinichi; "Japan's Ancient Trees Whisper Their Secrets," New Scientist, p. 19, ...
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... "Family-planning sperm" that kill all sperm. One can liken this array of sperm types to polymorphic ant colonies with their castes of workers, soldiers, and queen. Baker and Bellis go further and suggest that the numbers of each sperm type are under the control (certainly not conscious control) of the males. For example, where promiscuity is observed, as is common in chimpanzee troops, the numbers of seek-and-destroy sperm are very high. All this out of a short review! Unfortunately, the book itself lists at $78.95, and we don't have a copy. (Sozou, Peter D.; "Mating Games," Scientific American, 274:102, January 1996) Comments. Exercising self control, we add only two comments. First, these specialized sperm cannot be as simple as those drawn in the biology books. The search-and-destroy type must have evolved biochemical "devices" that find, identify, and destroy other sperm and maybe even defend itself. Second, one should not ignore the eggs, which are much larger and likely more sophisticated. The receptivity of the eggs may be influenced (perhaps not unconsciously) by the female. From Science Frontiers #104, MAR-APR 1996 . 1996-2000 William R. Corliss ...
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... 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. Demons were all around me. I could hear them but could not see them. They chattered like blackbirds. It was as if they knew they had me, and had all eternity to drag me down into hell, to torment me. It would have been the worst kind of hell, trapped hopeless between two worlds, wandering lost and confused for all eternity. "I had to get back into my body. Oh my God, I needed help. I ran to the house, went in through the door without opening it, cried out to my wife but she could not hear me, so I went into her body. I could see and hear with her eyes and ears. Then I made contact, heard her say, 'Oh, my God.'" His wife then grabbed a knife, ran to the shed, and cut her husband down. An emergency squad revived him. (Grayson, Bruce, and Bush, Nancy Evans; "Distressing Near-Death Experiences," Psychiatry , 55:95, 1992.) Comments. The above case might well ...
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... 000,000; it doesn't matter. Anthropologist D. Meltzer writes: "Of course, no matter how rare the chances, given sufficient time and raw material - Pedra Furada had plenty of both - nature can magnify even the slimmest odds to the point where geofacts occur in detectable frequencies." In this argument, you see how our title "Darwinism in Archeology" came to be. Random events (rock falls or mutations) plus a sorting mechanism (human selection or natural selection) can produce geofacts or new species. This sort of explanatory mechanism can, in principle, explain just about anything! (Meltzer, David; "Stones of Contention," New Scientist, p. 31, June 24, 1995.) R. Dennell and L. Hurcombe, two archeologists faced with the geofact problem at their Pakistan dig, tried to solve it experimentally. They deliberately dropped quartzite rocks from heights onto hard surfaces. They concluded: "While conceding that had we conducted the experiment with a thousand, ten thousand, or a hundred thousand stones, a few might have fractures, we would nevertheless maintain that the chances of any showing multiple, multi-directional flaking and all with bulbs of percussion are as remote as the proverbial monkey typing Shakespeare." (Dennell, Robin, and Hurcombe, Linda; "Comment on Pedra Furada." Antiquity, 69:604, 1995.) From Science Frontiers #105, MAY-JUN 1996 . 1996-2000 William R. Corliss ...
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... . 104: Mar-Apr 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A METEORITIC EVENT LAYER IN ANTARCTIC ICE "Where the East Antarctic icesheet meets the Transantarctic Mountains, old, deep glacial ice is tilted upward and exposed. Within this visible cross section of the icesheet, layers of dark volcanic tephra serve as stratigraphic markers and datable age horizons. Systematic sampling of these layers at a well-known meteorite collection site (the Allan Hills Main Icefield) has revealed a band consisting of unusually dark and rounded particles, many of which are spheroidal. This debris layer (BIT-58) extends parallel to the stratigraphy of the ice established from the tephra bands, and thus apparently marks a single depositional event. Several kilograms of ice from two sites along this band were subsequently collected and melted, yielding a few grams of sediment for further study." Microscopic examination and microprobe analysis led to the following conclusions: "Although direct evidence of an extraterrestrial origin for this debris layer (such as the presence of cosmogenic 10 Be and 26Al) has not yet been obtained, the available data strongly suggest that this sediment originated as meteoritic spallation debris. This debris is distinct from other Antarctic 'cosmic dust' collections by virtue of its uniform, recognizable, ordinary chondrite composition and the consistent relation shown between grain size and texture. The BIT-58 layer probably originated from a single transient event, the passage and/or impact of a single large meteorite over the East Antarctic icesheet." (Harvey, R.P . et ...
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... Sourcebook Project Sourcebook Subjects For some, sex = death It has long been known that the males of some species of marsupial mice mate in their first year and then die off completely, leaving the perpetuation of their species to their male progeny. Females of these species usually survive to breed a second and even third year. The poor males, however, succumb due to "elevated levels of free corticosteroids in the blood and associated disease such as hemorrhagic ulceration of the gastric mucosa, anemia, and parasite infestation." In short, they seem programmed to die after mating, like the male octopus. And one wonders why evolution has wrought this mass die-off. In their studies of marsupial mice, C.R . Dickman and R.W . Braithwaite have extended the phenomenon to two new genera: Dasyurus and Parantechinus . They have also found that the phenomenon is a bit more complex. First, in P . apicalis, the male die-off occurs in some populations and not others. In D. hallucatus , the die-off may occur in the same population in some years and not others. Furthermore, the females of this species may on occasion all die off, too -- but after giving birth, of course. (Dickman, C.R ., and Braithwaite, R.W .; "Postmating Mortality of Males in the Dasyurid Marsupials, Dasyurus and Parantechinus ," Journal of Mammalogy , 73:143, 1992.) Reference. The mass die-off after reproduction or "semelparity" is covered in more depth in BMF25 ...
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... many others have mused, are these critical properties so precisely adjusted so as to permit the existence of life -- and us? Harrison lists three answers: oThis is the way God wanted it to be. Further inquiry is unnecessary. oIf the universe were constructed any other way, we wouldn't be here to ask such silly, anthropomorphic questions! Some find this "anthropic principle" to be no answer at all. oOur universe was actually created and its properties fine-tuned by nonsupernatural entities of superior intelligence living in another universe. [These beings apparently get a kick out of manufacturing other universes, or perhaps it's a religious imperative for them!] Before you crumple up this issue of SF and hurl it at very high energy into a wastebasket, consider these two paragraphs from the Times article. "' We are beginning to see how universes can be created,' Professor Harrison says. 'A small amount of matter -- roughly 10 kg -- at very high energy is forged into a black hole. Under the correct conditions, the interior of the black hole inflates into a new universe that endures for billions of years and contains billions of galaxies.' "At most, he argues, human intelligence is only one million years old. 'If we can already see how in principle universes can be created, then surely our descendants in the far future will have the knowledge and technology to design and create them.'" (Hawkes, Nigel; "Aliens May Have Created Universe, Says US Scientist," London Times, ...
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... Science Frontiers ONLINE No. 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Europe's mystery people The researches of R. Frank, a scholar at the University of Iowa, suggest that the Basques were far-advanced in navigational skills and other aspects of technology long before the rise of the Roman Empire. The Basques, she believes, are the last remnants of the megalith builders, who left behind dolmens, standing stones, and other rock structures all across Europe and perhaps even in eastern North America. Two facts set the Basque peoples apart from the other Europeans who have dominated the continent the past 3,000 years: (1 ) The Basque language is distinctly different; and (2 ) The Basques have the highest recorded level of Rh-negative blood (roughly twice that of most Europeans), as well as substantially lower levels of Type B blood and a higher incidence of Type O blood. Some probable technological feats of the Basques or their ancestors are: Stonehenge and similar megalithic structures oA unique system of measurement based on the number 7 instead of 10, 12, or 60 Regular visits to North America long before Columbus to fish and to trade for beaver skins. Recently unearthed British customs records show large Basque imports of beaver pelts from 1380-1433. The invention of a sophisticated navigational device called an "abacus." (No relation to the common abacus.) (Haddingham, Evan; "Europe's Mystery People," World Monitor , p. 34, ...
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... Science Frontiers ONLINE No. 71: Sep-Oct 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Hot Spots On Mercury Radio telescopes can give planetary astronomers a rough idea of the temperature existing several feet below the surface of a distant planet. Scrutinizing Mercury with their big electronic "ears," they have found two spots on the plamet where the temperatures are several hundred degrees higher than in the surrounding areas. Actually, these hot spots are easy to understand; because, to a Mercurian, the sun comes to a stop in the sky over one of these points and then moves backwards to the other point 180 away. As the sun tarries over these two spots, it heats them preferentially. The strange apparent motion of the sun is due to the 3:2 ratio between Mercury's period of revolution around the sun (88 days) and its axial spin period (59.6 days). What is surprising is that the energy detected radiating from the two hot spots is all reradiated solar energy; that is, there seems to be no contribution at all from Mercury's core! If no heat is leaking out of Mercury's core, the core itself is very likely solid. If it is solid, it cannot establish convection cells and thus generate a magnetic field through dynamo action. But back in 1975, the Mariner 10 spacecraft radioed back that Mercury actually does possess a magnetic field, and a surprisingly large one at that. (Wilford, John Noble; "Theory of Mercury ...
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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 Doubts About Two Ritually Recited Theories Do you think humans originated in Africa? We have heard for so long now that modern humans got their start in Africa. (This assertion is as hackneyed as: "Life began in a warm little pond"!) There is, of course, some evidence for the African claim. Studies of genetic material and the fossil record are suggestive, although the latter includes the Middle East as a possible birthplace. Other data, however, put the "founding group" of modern humans in Southeast Asia. The iconoclast here is C.G . Turner, II, an anthropologist at Arizona State University. He has analyzed secondary dental traits (number of roots, bumps, etc.) of 12,000 individuals from around the world - both ancient and modern. Turner believes that the "great web of humanity" originated in Southeast Asia. Since then, two large populations, each recognizable by their dental features, have evolved.: (1 ) northeast Asians and the ancient residents of the Americas; and (2 ) southeast Asians, Europeans, ancient Australians, and Africans. Also of note is the close resemblance between native Australians and Africans. (Bower, B.; "Asian Human Origin Theory Gets New Teeth," Science News, 136:100, 1989.) Did the eruption of Thera do in the Minoans? According to popular archeolo-gical doctrine, ...
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... Science Frontiers ONLINE No. 71: Sep-Oct 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects WHAT'S ANOTHER DIPOLE OR TWO?" Planetary exploration by deep space probes in recent years has shown that the dipole moment of some mag netized planets has a surprisingly large inclination angle with respect to the rotation axis. It is argued that the inclined dipole thus obtained may not be physically realistic. Applying the method we have developed for the source surface magnetic field of the sun (a spherical surface of 2.5 solar radii), it is suggested that the main dipole of the earth and the magnetized planets is actually axial (the magnetic moment is parallel or antiparallel to the rotation axis), and that two or three smaller dipoles near the core surface are responsible for the apparent inclination of the main dipole." (Akasofu, S-I ., and Saito, T.; "Is the Earth"s Dipole Actually Inclined with Respect to Its Rotation Axis?" Eos, 71: 490, 1990.) Comment. In SF#70, we see that the magnetic field of Uranus is inclined a whopping 60 to its axis of rotation. Can a few, small additional dipoles distort the main field so much? And just what are these small dipoles anyway -- physically and electrically? From Science Frontiers #71, SEP-OCT 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 79: Jan-Feb 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Telepathic Rabbits Well, why not? Our experimental study has tried to bring out the existence of a correlation, at a distance, between the physiological reactions of two rabbits from the same litter who had always lived together. We chose photoelectric plethysmography as being the least traumatic method for the rabbits and the one most capable of giving evidence of the physiological reaction specific to stress. Through this method, we studied the coincidences between the outsets of the two rabbits' emotional reactions. Added to the rabbits' isolation through distance, some experiments involved the setting up of sensorial and electromagnetic isolation boxes. We studied the coincidences occurring between the spontaneous emotional reactions of the rabbits as well as the coincidences occurring between the reactions provoked by small stimulae, such as the sound of a bell in one of the boxes. Two series of experiments out of four gave significant results, leading one to think that a conscious or unconscious telepathic link does exist between two rabbits that have close links with each other. (Thouvenin, Bernard; "A Study of Telepathic Phenomena among Rabbits," Revue Francaise de Psychotronique , 1:15, July-September 1988. As abstracted in Exceptional Human Experience , 9:47, June 1991.) From Science Frontiers #79, JAN-FEB 1992 . 1992-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 68: Mar-Apr 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two-faced indians trick tigers A significant hazard for fishermen and forest workers in western Bengal is a tiger attack. As these Indians go about their fishing, wood chopping, and honey gathering, tigers are wont to sneak up from behind, spring, and carry off a good-sized meal. But in recent experiments, some 900 volunteers have been wearing human masks on the backs of their heads. This strategem has cut ti-ger attacks drastically. The idea is that tigers, trailing a potential supper, see that human face and figure that the person is alert and watchful. In fact, tigers have been known to track maskwearers for hours without attacking. Pretty clever! How long before the tigers catch on? (Anonymous; "Protective Mimicry in Humans," BioScience, 39:750, 1989.) 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 Two Anomalous Types Of Stars Blue straggler stars. The stars comprising a star cluster are usually assigned the same age, since it is thought that they were all created at the same time that the cluster was formed. Lurking in many star clusters, however, are brighter, bluer nonconformists called "blue straggler stars." These stars seem to have about twice the mass of the "normal" cluster members, and they appear to be only about one-fifth as old as their compatriots. The motions of the blue stragglers are consistent with those of bona fide cluster members, implying that they are not interlopers or foreground objects. Several explanations have been suggested to explain the presence of blue stragglers. One thought is that they harbor asteroid-size black holes at their cores. So far, all of the profferred explanations have serious flaws. (Fogg, Martyn J.; "Blue Straggler Stars: A Cosmic Anomaly," The Explorer, 6:4 , Spring 1990.) Socket stars. "A picture book hardly seems a likely source of an astronomical discovery, especially in a world where mysteries of the universe usually tumble from sophisticated electronic instruments attached to huge telescopes. Nevertheless, while recently paging through Exploring the Southern Sky , by G. Madsen and R. West, Walter A. Feibelman (NASA Goddard Space Flight Center) recognized something that had caught his attention decades before. High-resolution photographs of ...
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... witnesses report a dark, triangular object with three bright lights plus a flashing red one in the middle. Size estimates vary from the size of a football field to that of conventional aircraft. The object sometimes hovers for minutes at a time. It also can move very slowly and then suddenly accelerate to high speeds. Some observers report a faint humming sound; others say that it is noiseless. The American Stealth fighter (Fll7) is roughly triangular, and there has been much speculation that people have been seeing this craft on night missions. The characteristics reported for the flying triangle, however, are hardly those of a jet aircraft. But one must always remember that human observers are imperfect. The July 5, 1990, issue of Paris Match presented a remarkable account of an encounter between two Belgian F16s and one of the flying triangles. We use here those portions of a translation provided by R.J . Durant to the Internation al UFO Reporter (15:23, July/August 1990). "On the night of March 30th, one of the callers reporting a UFO was a Captain of the national police at Pinson, and [Belgian Air Force] Headquarters decided to make a serious effort to verify the reports. In addition to the visual sightings, two radar installations also saw the UFO. One radar is 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 ...
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... Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Lightning "attacks" vehicles Sketch of the lightning ground tracks and craters in Shelhamer's parking area. "On Sunday, 17 July, 1988, the usual calm and quiet on the Shelhamer property in rural Hannacroix, New York, was suddenly disrupted by a bright flash and a powerful concussion. The house shook. A picture came off the wall and crashed onto the floor. A contact lens popped out of Mrs Shelhamer's eye. The electric power went out. The kitchen clock froze at 3.30 PM. Mr Shelhamer saw three wisps of smoke rise from his parking area. He noticed a strange smell in the air. A pickup truck, parked near the house, was covered with dirt. Two of its tyres were flat, and the hubcaps were lying on the ground. Strange trenches and tracks had appeared in the surface of the parking area. These trenches led Mr Shelhamer to a hickory tree, about 20m from the house. On it a 10cm scar had appeared, spiralling up the trunk toward the sky. A few minutes earlier it had begun to rain, and all this was the result of the lightning strike. "Perhaps the most extraordinary aspect of this lightning strike was the way the currents flowing from the hickory tree along the surface of the ground apparently leapt out of the ground in places to pass through the automobiles parked in the parking area. Two of the trenches that radiated from the tree ended at an automobile, but reappeared at the opposite side or end ...
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... Project Sourcebook Subjects Do birds use genetic maps during migration?Routes taken by migrating German and Austrian blackcaps en route to Africa. Hybrids bisect these initial paths and would end up in the Alps. Many young birds migrate successfully without help from older birds who have made the trip before. The implication is that migration instructions, perhaps even some sort of map of astronomical or geo graphical references, are somehow written upon the genes inherited from their parents. Just how maps can be coded into gene structure is anyone's guess. (In fact, since the DNA in the genes seems to cody only for protein synthesis, the locations and characters of inheritable maps and other biological instructions are not immediately obvious.) The problem has been exacerbated by recent experiments with German and Austrian blackcaps. These two common European warbler species take different routes to Africa in the winter. The Ger-man blackcaps fly southwest and the Austrian southeast--routes 50 apart. A. Helbig has crossed the German and Austrian blackcaps to see what route(s ) their hybrid offspring would take. Curiously, they favored a route intermediate between those of their parents. The hybrids' route -- bisecting those of the parents' -- would take the hybrids right into the Alps, where survival would be unlikely. (Day, Stephen; "Migrating Birds Use Genetic Maps to Navigate," New Scientist, p. 21, April 21, 1991.) Comment. The puzzle at hand concerns those purported genetic maps. Presumably, the hybridization of the two blackcaps involves the melding to two different ...
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... 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 Of iron whiskers and particles that increase mass with age!Two pillars of the Big Bang hypothesis are: (1 ) Redshifts of galaxies support the notion of an expanding universe; and (2 ) The background microwave radiation can be interpreted as the dying embers of the Big Bang itself. Proponents of the Big Bang feel secure atop these pillars. But should they? A few Big-Bang skeptics, who have survived considerable establishment pressure, see growing cracks in those pillars. J. Narlikar identified two such cracks and, best of all, offered exciting remedies: (1 ) The redshift relationship, which works well with galaxies, falls apart when applied to quasars (see graphs); and (2 ) The background microwave radiation is much too smooth to come from the lumpy universe we observe. Narlikar opines as follows: Plot of red shift versus galaxy faintness supports the proposition that red shift is proportional to distance The same plot for quasars produces a scatter of points, suggesting that here red shifts have nothing to do with distance. "Given these problems, it is not a sound strategy to put all of our cosmic eggs in one big-bang basket. Rather, we should explore other possibilities. Thirty years ago, there was a more open debate on alternative theories, which made valuable contributions to our undersanding of cosmology. For a healthy growth of the subject, the big bang hypothesis needs competition from other ...
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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 Books About The Crop Circles You know a phenomenon has "made it" when a book is devoted to it. With the English crop circles, we now have two books (bibliographical information below.) We will try to stock at least one of these books, but it will be a few months before can can get them on this side of the Atlantic. Meanwhile, a review of the two books in New Scientist provides some information beyond that already presented in several past issues of SF. First, the crop circles, spanning 5 to 20 meters, are incredibly precise and sharp. Flattened stems on the periphery of a circle almost touch erect, undamaged stems. The so-called satellite circles that sometimes array themselves around the main circles may be connected by a narrow ring, thus: Even more curious, a short radial spur extends outward from some circles, so that from the air the circle resembles a fat tadpole. In his book, G.T . Meaden, the Editor of the Journal of Meteorology, U.K ., presents his theory of how the circles are incised in field crops: "He describes the clues that have enabled him to point to the circles being formed by the impact of a body of fast-spinning air that has been partially ionized. He explains how a columnar atmospheric vortex, with a vertical or inclined axis, provides the channel for the formation of a plasma ...
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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 How fares benveniste?J. Benveniste is in the news again! The July 20 issue of Nature has a news item entitled emphatically "INSERM Closes the File." (INSERM is the French institute of health and medical research.) Two INSERM committees recommended that Benveniste cease his work on high dilutions; work that seems to support the principles of homeopathy. The directory-general of INSERM, P. Lazar, however, did not endorse these recommendations. Benveniste was asked to look for errors in his experiments that might account for his "unusual results." Without question Benveniste is under the gun and future funding in jeopady. (Coles, Peter; "INSERM Closes the File," Nature, 340:178, 1989.) The headline in Science's news item was less emphatic: "Benveniste Criticism Is Diluted." Here, Lazar is reported as saying that he did not want to stifle research on new ideas and that Benveniste had been treated badly by Nature. Benveniste has not remained silent. In Le Monde , he stated that the results he had published in Nature have now been confirmed by two French teams, two American teams, and one in the USSR. (Dickson, David; "Benveniste Criticism Is Diluted," Science, 245:248, 1989.) From Science Frontiers #65, SEP-OCT 1989 . 1989-2000 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 A RELUCTANT, LONG-OVERDUE PARADIGM SHIFT How many times in SF have you read items about that 12,000-year barrier before which American archeologists would not permit serious consideration of human habitation in the Americas? Well, see SF#65, 59, and 57 for starters. In SF#55, written scarcely two years ago, establishment archeologist P.S . Martin wrote: "If humans lived in the New World more than 12,000 years ago, there'd be no secret about it." But, in late March, 1990, at a conference in Boulder, Colorado, D. Stanford lef off with: "It's time to acknowledge that we do have a pre-Clovis culture in the New World." (Pre-Clovis -before 12,000 years ago.) It's all true! A long-standing consensus has collapsed: the 12,000-year barrier, like the Berlin Wall, has disintegrated. The two most important demolition charges were the widely-accepted dates of 16,000 B.P . from the Meadowcroft Rockshelter, Pennsylvania, and 13,000 B.P . from the Monte Verde site in Chile. The Monte Verde date probably represents an American entry date of at least 20,000 years ago, if one accepts that the first Americans trekked all the way down from the Bering Strait to Chile. Will ...
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... Science Frontiers ONLINE No. 64: Jul-Aug 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cold Fusion Update We gingerly approached the topic of cold fusion in SF#63. Sure enough, a lot has happened in the past two months. For one thing, a panel of physicists got together and "voted" down cold fusion almost unanimously. This authoritative declaration seemed to be the beginning of the end for cold fusion - good riddance to those impertinent electrochemists! At the end of May, scientists assembled at Santa Fe for a Workshop on Cold Fusion Phenomena. Most thought this would be the coup de grace for cold fusion. Not so! More and more researchers reported either anomalous heat production or anomalous emission of neutrons from experiments based on the cold fusion results of Pons and Fleischmann at the University of Utah. Curiously, no one seemed able to get heat and neutrons at the same time and in the amounts Pons and Fleischmann had reported. We cannot go into all the experiments here. The upshot seems to be that cold fusion is not dead at all. In fact, a lot of people now believe that cold fusion actually does take place in palladium and titanium electrodes. Why, no one is sure. Nor is anyone able to explain the anomalous heat generation. Some think that two separate and distinct phenomena are being observed. One unbelievable anomaly has fissioned into two more-believable anomalies! Tune in next issue for the latest. Con't believe anything until things cool down a bit. ( ...
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... Science Frontiers ONLINE No. 71: Sep-Oct 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The bombardier beetle pulse-jet Creationists have long pointed to the bombardier beetle's jet-like defensive spray mechanism as a device that could not have evolved in many small steps. It must be complete and perfect to work at all. New high-speed photos and related research demonstrate that: "The ejection system of the beetle shows basic similarity to the pulse jet propulsion mechanism of the German V-1 'buzz' bomb of World War II." What the beetle has "evolved" is an intermittent explosive process that fires about 500 pulses per second. The explosive energy comes from the mixing of two separate fluids (hydroquinones and hydrogen peroxide with oxidative enzymes). (Dean, Jeffrey, et al; "Defensive Spray of the Bombardier Beetle: A Biological Pulse Jet," Science, 248:1219, 1990.) Comment. The fundamental question is, of course, how can many, small, random mutations contribute to the development of the mechanisms of the pulse jet, its two fuels, the pumps, the fuel reservoirs, the control system, etc., when only the complete, perfected system has survival value. Although creationists argue that the theories of evolution and natural section are unconvincing here; it is still possible that atheistic factors still beyond our ken are operating, and that what we really need is a better theory of evolution. From Science Frontiers #71, SEP-OCT ...
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... Science Frontiers ONLINE No. 76: Jul-Aug 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects New Insights As To The Structure Of Matter Possible "nuclear-molecular" forms of magnesium-24 and carbon-12. Inside the atom. Physicists have long visualized the atomic nucleus as being a shell-like arrangement of its constituent protons and neutrons. Tantalizing experiments suggest other wise. Magnes ium-24, for example, may under some circumstances exist as two carbon-12 nuclei in tight orbit, as in the illustra tion. Even more startling is the "sausage" form of magnesium-24, in which six helium-4 nuclei (alpha particles) are lined up in a row. This "hyperdeformed" state has not yet been detected in the lab, but it demonstrates new thinking among the physicists. (Kenward, Michael; "Are Atoms Composed of Molecules?" New Scientist, p. 21, April 6, 1991.) Comment. Evidently we do not know everything about nuclear physics. Beyond the molecule. We are used to seeing atoms and molecules arranging themselves into mathematically regular crystals. Now it appears that particles consisting of thousands of atoms also spontaneously organize themselves. A.S . Edelstein et al find that molybdenum particles assemble themselves in cubes with two prominent edge lengths: 4.8 and 17.5 nanometers. The larger cubes show up in micrographs as 3x3x3 groupings of the smaller cubes. The smaller cubes each contain about 7000 atoms. (Edelstein, A.S ...
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... formed. Although the Clovis Police do not carry guns, they will make sure that all who stray from the archeological mainstream will be held up for censure. (Does this mean denial of funds and access to some journals?) The "law" that the Clovis Police will enforce says that humans did not enter the New World before 12,000 BP -- the oldest date of the artifacts attributed to the Clovis people. Perhaps we have dwelt on this subject too long, but the whole idea of the Clovis Police is counter to the spirit of science. The members of the Clovis squad and their objectives can be found in a recent issue of Science. (Marshall, Eliot; "Clovis Counterrevolution," Science, 249:738, 1990.) Somehow, the following two important articles escaped the Clovis Police. Meadowcroft Rockshelter, Pennsylvania. Responding to mainstream criticism of Meadowcroft radiocarbon dates (Some people just refuse to believe them!), J.M . Adovasio et al report that they now have 50 internally consistent dates, some made using accelerator mass spectrometry, that place humans at Meadowcroft at least 14,000-14,500 years ago. (Adovasio, J.M ., et al; "The Meadowcroft Rockshelter Radiocarbon Chronology 1975-1990," American Antiquity, 55:348, 1990.) Monte Verde, Chile. Another recent issue of Science reviews the first of two volumes on the Monte Verde site. This volume deals with the site itself. The artifacts themselves are reserved for Vol. 2. The reviewer states: " ...
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... Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fossil Identity Still Up In The Air In 1986, we reported the discovery of bird-like fossils in Texas by S. Chatterjee, a paleontologist at Texas Technical University. Chatterjee was so certain that the fossils (two specimens exist) were primitive birds that he named the species Protoavis texensis (first bird from Texas). During the past five years, the scientific community has chafed while Chatterjee studied his finds and wrote them up. It seems that many paleontologists do not think that Proto-avis is really a bird at all, and Chatter jee has been slow in releasing details. But now his first paper has appeared in the Philosophical Transactions of the Royal Society . Result: Many doubts still remain about the status of Protoavis. A. Feduccia: "Calling this the original bird is irresponsible." (1 ) J.H . Ostrom: "Sad to say, for all its length, little support for the claim is to be found in this paper." (2 ) J. Gauthier: While some of the bones appear bird-like, they also look dinosaurian and could represent a new type of theropod dinosaur. (3 ) For his part, Chjatterjee asserts that Protoavis' skull has 23 features that are fundamentally bird-like, as are the forelimbs, the shoulders, and the hip girdle. "His reconstruction also shows a flexible neck, large brain, binocular vision, and, ...
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... Science Frontiers ONLINE No. 79: Jan-Feb 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Crop circles: if some are hoaxes, are they all hoaxes?One could almost hear a sigh of relief among the skeptics of unusual natural phenomena when two Britons admitted to manufacturing scores of crop circles. After all, the crop circles are about as outrageous as UFOs and toads-entombedin-stone. However, the crop circles have not gone away. In fact, plant and soil samples from the circles seem to point to bizarre, highly energetic processes at work. This aspect of the phenomenon has been discussed by R. Noyes, Secretary of the Center for Crop Circle Studies (CCCS). First, though, Noyes has asserted that hoaxes cannot explain the large numbers of circles that have been counted -- about 1000 between 1980 and 1989. He con tinued as follows: "The events of 1990 and 1991 (totalling about a further 1000 over the two years) certainly present a puzzle. Hoax is beyond doubt in some cases, but it seems very unlikely as a general explanation. Many events have been very large and very elaborate; they have occurred widely about the country (sometimes several on the same night in counties far from each other); there have been very few cases of detection of hoax, despite massive surveillance in the Mariborough/Devizes area, where so many of the events took place; circles (including a dumbbell formation) occurred within visual and radar range of a hi-tech ...
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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 Spinning Ball Of Light Inscribes Crop Circles In the January 1990 issue of the Journal of Meteorology, U.K ., two reports appeared describing eyewitness observations of crop circles-in-the-making. Both involved a self-luminous spinning ball of light. We reproduce here the second of these accounts. June 28, 1989, north-central Wiltshire, near Silbury Hill. "Soon after midnight the occupier of the roadside cottage by the path which leads to West Kennett Long Barrow noticed a large ball of light 400 metres distant in a wheatfield to the west. At the time of the observation he was walking from house to garage, and had a clear view to the illuminated part of the field through a gap in a hedge which borders his garden. He described the ball as orange in colour, adding that it was brighter around the periphery, and he guessed the diameter as 30-40 feet (say, 10-13 metres). When first seen, the ball was already low over the field and still descending. The witness watched the base of the ball 'go flat' as it made contact with the crop and/or the ground. The ball then gave 'a little bounce' and after a further 'seven or eight seconds' disappeared in. "Next morning on leaving the house the witness could see via the gap in the hedge a large circle at the place which corresponded ...
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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 Memory Structure Of Autistic Idiot Savants The first two paragraphs of this study by N. O'Connor and B. Hermelin provide some interesting background concerning the idiot savant phenomenon. "There are two basic questions which arise from the phenomenon of the idiotsavant. One is whether the specific memory of the idiot-savant is categorically organized or not and the second is whether this memory is IQ independent or IQ related. The first problem needing consideration is therefore concerned with the nature of the memory system which is involved. In the idiot-savant this has, until recently, been deemed to be a relatively unorganized rote memory. It is supposed to be mechanical, inflexible and extremely concrete. However, in a number of studies we have demonstrated that the outstanding memories of idiotsavant calculators and musicians are founded on strategies which are rule based, and which draw on a knowledge of the structure of the calendar or of music. "In addition to evidence concerning the organized nature of the specific memories of idiot-savants for dates and music, we have also accumulated evidence that the eliciting of rules and the development of rule-based strategies tended to be specific in the particular areas of ability of these subjects. For example, although able to calculate past and future dates rapidly, calendrical calculators were often quite poor in the addition and subtraction of numbers unrelated to the calendar. Similarly, in one experiment, musical memory in an idiot- ...
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... size,' as Sefton later described it, slammed the ship broadside, pushing its masts farther beneath the surging water. A second wave pounded the ship as it went down. The Marques filled with water and sank in less than one minute. Most of the crew were trapped as they slept below deck. Only Sefton and eight shipmates survive." Accounts such as that above are part of sea lore. Waves 50-100 feet high have been frequently reported over the years. Most often, they are encountered in rough seas, but some walls of water have smashed ships in relatively calm waters. A tanker encountering a steep-sided giant wave in the Aguhlas Current of the African coast. Until recently, oceanographers were confident that any unusually large wave was just the chance addition of two smaller waves. Now, a consensus is emerging that at least two other factors are important: seabed topography and ocean currents. To illustrate, perhaps the most dangerous stretch of water in the world lies off southeast Africa, where the fast (8 feet/second) Agulhas Current often runs into storm waves surging up from Antarctica. The African continental shelf is so shaped that it funnels the current directly into the storm waves. Immense, steep-fronted waves have broken many a ship here. In sum, the old statistical theory about the origin of rogue waves has been jettisoned, but a new approach is still in the formative stages. (Brown, Joseph; "Rogue Waves," Discover, 10:47, April 1989.) Comment. But can any theory explain ...
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... the only wellexplained elliptical halo is formed when the lower and upper tangential arcs of a 22 halo join together. Possibly because of the absence of appropriate theory, R. White, in 1981, suggested that the observations recorded in GEH2 were only the consequences of observational error or inaccuracy in representation of the phenomenon. (This assertion is well-known to all anomalists!) Recently, however, several elliptical halos have graced the skies of Finland. We provide below a summary of these observations, as prepared by J. Hakuma ki and M. Pekkola. First, though, we express appreciation to Hakumaki and Pekkola for a paragraph headlined SOURCEBOOK PROJECT ANOMALIES, where in effect they vindicate the approach of the Project. We now quote from the summary of their article. "In December 1987 two Finnish amateur astronomers observed and photographed a peculiar vertically elliptical ring surrounding the moon. A literature study carried out soon after this first observation brought to light ten reported historical cases of this type of rare halo phenomenon. It was found out that the existence of these elliptical halos has been uncertain to date due to a lack of photographic evidence. One indication of this is that none of the major modern works on halos mentions such phenomena. During 1988 three more elliptical halos were seen by the Finnish halo observing network. Observations and photographs taken of these phenomena seem to indicate that at least two types of elliptical halo exist. The smaller one was first reported by US astronomer Frank Schlesinger in 1908 and its vertical axis has in all four possible cases been about 7 . No name has been suggested ...
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... water for the birds. In last winter's first hard frost, I found an odd ice formation in the bowl. Although the weather the previous day had been clement and the water was fluid, we had that night a sharp frost down to about -4 C. The following morning I noticed what appeared to be something sticking up out of the frozen water in the dish. On closer examination, it proved to be a solid 'spike' of ice, ending in an arrowhead. The ice was solid and came out of the side of the frozen water at an angle of about 45 . It was about 9 inches long and solid throughout." (Turner, Judy; "Spooky Spike," New Scientist, p. 54, November 2, 1991.) Two weeks later, the same journal published two radically different explanations of the ice spike. G. Lewis called the spike an "ice fountain" and stated that it is due to the well-known expansion of water as it freezes. R. Blumen-feld, on the other hand, attributed the growth of the spike to the fact that water molecules on the surface and in surrounding air are electrical dipoles. In his view, a small defect in the ice's surface attracts polarized water molecules in the air, creating an outwardly growing structure. (Lewis, Geoff, and Blumenfeld, Raphael; "Sprouting Spikes," New Scientist, p. 58, November 16, 1991.) Comment. Seldom does one find such engaging oddities discussed in American scientific publications. ...
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... Science Frontiers ONLINE No. 72: Nov-Dec 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Upwardly directed lightning from cloud tops "An image of an unusual luminous electrical discharge over a thunderstorm 250 kilometers from the observing site has been obtained with a low-light-level television camera. The discharge began at the cloud tops at 14 kilometers and extended into the clear air 20 kilometers higher. The image, which had a duration of less than 30 milliseconds, resembled two jets or fountains and was probably caused by two localized electric charge concentrations at the cloud tops." (Franz, R.C ., et al; "Television Image of a Large Upward Electrical Discharge above a Thunderstorm System," Science, 249:48, 1990.) Comment. Note that the above discharges were diffuse and quite unlike most cloud-to-ground lightning discharges. They were, in fact, much like the mountain-top glows seen along the Andes. Also, one should ask where those "localized electric charge concen trations" came from and why they did not disperse. Reference, Upwardly directed "rocket lightning" is cataloged in GLL1 in our catalog: Lightning, Auroras. Fuller description here . From Science Frontiers #72, NOV-DEC 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 Archeological Riddle W. Elliott, of Grand Lake Stream, Maine, reports the discovery of some truly remarkable stone artifacts in eastern Washington County, Maine. These artifacts were extracted from a small cist, or tomb, constructed of slabs of slate laid over a hollow space between a ledge and a row of stones. As the following description attests, these artifacts are anomalous to Maine (and perhaps anywhere in the States.) "Elliott has three stone artifacts that he says came to light when he tilted two or three of the slabs covering one end of the tomb, which lies east-to-west. The grave items consist of a smooth rectangular green stone resembling a whetstone but bearing four letters or symbols; a four-inch pendant that is a flat stone oval bearing on one side and eye and on the other side a face of the sun with four rays, a crescent above, and six or seven letters in an undetermined script below; and a 15- inch ceremonial slate spear point showing on one side a bearded, trousered man in a hat or helmet with one arm severed and one foot missing, and on the other side a bear-like animal with two spears sticking out of him. In front of the bear are marks resembling the Roman numerals for eight, with the V tipped to one side." Members of NEARA (New England Antiquities Research Association) have visited the site; ...
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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 Chemical surprises at the k-t boundary The presence of high iridium concentrations at the Cretaceous-Tertiary (K -T ) boundary, some 65 million years ago, has led to the widely accepted notion that an extraterrestrial projectile slammed into the earth at that time, wreaking geological and biological havoc. But the K-T boundary is anything but simple chemically and paleontologically. To illustrate, J.L . Bada and M. Zhao have found unusual amino acids in sediments laid down before and after this geological time marker. "They find that Danish sediments spanning the narrow boundary layer contain two amino acids, alpha-aminoisobutyric acid and isovaline, that are relatively uncommon in biological materials but abundant in the organicrich meteorites. They suggest that the body which collided with Earth 65 million years ago and left the telltale iridium residue may have been organic-rich, perhaps like a C-type asteroid or a comet. Such a possibility has interesting implications for the extinction and related atmospheric effects, and supports the idea that impact events could have supplied the Earth during a much earlier period with the raw materials for organic chemical evolution." Actually, the above quotation is pretty much in line with present mainstream thinking. Perhaps so, but Bada and Zhao identified two troubling anomalies. First, the amounts of amino acids found were surprisingly high. How could these complex molecules survive the searing temperatures engendered by high-velocity impact? Second ...
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... 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's nomadic phase of 15 days (during which larvae are growing) and the 20-day stationary phase (during which pupae develop). The queen's egg-laying also conforms with this schedule. Raids into the rain forest occur in both phases. Perhaps more remarkable is the systematic orientation of the raids in the stationary phase. These raids are separated by an average 123 , as diagrammed. This scattering allows time for new prey to enter the previously raided areas. But how does the colony determine direction in the dense rain forest? Probably from polarized sinlight, thinks Franks. But here we have a problem: ...
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... Sperm Sperm is popularly thought to have but a single purpose -- fertilization of the egg. This is not so! "Nonfertilizing sperm with special morphologies have long been known to exist in invertebrates. Until recently, abnormal sperm in mammals were considered errors in production. Now, however, Baker and Bellis have proposed that mammalian sperm, like some invertebrate sperm are polymorphic and adapted to a variety of nonfertilizing roles in sperm competition, including prevention of passage of sperm inseminated by another male. More specifically, their 'kamikaze' hypothesis proposes that deformed mammalian sperm are adapted to fa cilitate the formation and functioning of copulatory plugs." The author of the present paper, A. H. Harcourt, thinks that although some 20% of mammalian sperm, on the average, is abnormal (two heard, no heads, two tails, no tails, coiled tails, etc.) such sperm represents only errors on the assembly line. These abnormal sperm have no special purpose, at least in mammals. (Harcourt, A.H .; "Sperm Competition and the Evolution of Nonfertilizing Sperm in Mammals," Evolution , 45:314, 1991.) Comment. Even if mammals haven't yet developed kamikaze sperm, some animals have; and one must wonder exactly how multipurpose sperm (and ova, too) evolved. For a copulatory plug to be effective, large numbers of mutant sperm with special plugging properties and knowing just where to go, would have to be generated all at once. That would seem to require a lot of chance mutations all at once ...
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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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... Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Found: the lost pyramids of rock lake The purported pyramids found on the muddy floor of Wisconsin's Rock Lake are so fascinating that we must pass on the following report, even though it comes from outside the group of publications we usually rely on. In fact, we have never seen anything on these pyramids in the scientific press, although in SF#30 we did present an earlier report on them from the Wisconsin State Journal. So, caveat emptor! The first sketch of the Rock Lake Pyramid from a 1970 issue of Skin Diver , as presented in Ancient Man. The author of this article, F. Joseph, states that beneath the surface of Rock Lake lie at least ten structures. Two of these have been mapped and photographed by skin divers and sonar. Structure #1 , which has been dubbed the Limnatis Pyramid, has a base width of 60 feet, a length of about 100 feet, and a height of 18 feet, although only about 10 feet protrude from the silt and mud. It is a truncated pyramid, built largely out of round, black stones. On the truncated top, the stones are squarish. The remains of a plaster coating can be discerned. The Rock Lake structures are made more believable by the presence, 3 miles away, of the Indian site of Aztalan. There, there are two truncated, earthen pyramids, partially surrounded by a tall stockade, which was originally plastered. Aztalan seems to have been occupied as late as the ...
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... whom they have been sent, but which are nevertheless judged to be of sufficient importance to command the attention of readers..." Certainly, this is a commendable development. But not surprisingly, the first paper is an at-tack on the Big Bang. Most of the authors of this first article are familiar to readers of Science Frontiers: H. Arp (Not all redshifts are measures of receding velocity.); G. Burbidge (Quasars are not as far away as they seem.); and F. Hoyle (The multidisciplinary iconoclast who helped de velop the Steady State theory of the universe.) None of these scientists has recanted, even in face of not-so-subtle pressures to conform. The first paper in Hypothesis. Arp et al summarize in two sentences: "We discuss evidence to show that the generally accepted view of the Big Bang model for the origin of the Universe is unsatisfactory. We suggest an alternative model that satisfies the constraints better." Most of the paper sets out observational evidence for the authors' main themes, as stated parenthetically above following their names. Space is also devoted to the contention that the vaunted "proofs" of the Big Bang are really not. Since these themes have appeared repeatedly in Science Frontiers, we will bypass details here. The paper concludes with suggestions for an alternative to the Big Bang, which is based upon multiple creation events -- thousands of them, each on the scale of superclusters of galaxies! (Arp, H.C ., et al; "The Extragalactic Universe ...
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... Science Frontiers ONLINE No. 74: Mar-Apr 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Echidna Eccentricities Monotremes: platypus (below); one of two species of echidnas (above) The echidna is one of the monotremes-- an egg-laying mammal. Like its relative, the platypus, it is a strange mixture of mammalian, marsupial, and reptilian characteristics. For example, echidna eggs are soft and leathery, like those of reptiles, but they are brooded in a marsupial-like pouch. The emerging baby echidna has an egg tooth like the birds and reptiles, while the adult has no teeth at all. Rather, it has a narrow snout through which it ingests ants and termites caught on its sticky tongue. In this it resembles the mammalian ant-eaters, which are also toothless but an ocean away from Australia. In fact, the echidna is often called a "spiny anteater" for it has the sharp spines of a hedgehog or porcupine. There are more anatomical peculiarities, but let us focus on the echidna's strange behavior during the mating season. At this time, 2 to 8 echidnas can be seen roaming the Australian bush in "trains" headed by a female with the smallest male acting as a caboose. When mating time arrives, the female anchors herself to a tree with her forelegs. To-gether the males dig a circular "mating rut" up to 10 inches deep around the tree. (Australians have puzzled over these circular trenches for years. ...
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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 How fares cold fusion?During the past two months, you could have read across a very wide spectrum of conclusions and opinions concerning cold fusion. Nature. This editorial begins with: "Although the evidence now accumulating does not prove that the original observations of cold fusion were mistaken, there seems no doubt that cold fusion will never be a commercial source of energy." Editor J. Maddox concludes by stating that Pons and Fleischmann should have placed their responsibility to the scientific community above publicity. (Maddox, John; "End of Cold Fusion in Sight," Nature, 340:15, 1989.) American Scientist. Here are reported the observations of neutrons at Los Alamos. (Hively, William; "Cold Fusion Confirmed," American Scientist, 77:327, 1989.) Science. Some laboratories have seen neutrons and heat production. (Pool, Robert; "Cold Fusion Still in a State of Confusion," Science, 245:256, 1989.) Baltimore Sun. The chemist quoted is Utah's B.S . Pons. "In the experiment, a 'boiler' the size of a thermos emitted 15 to 20 times the amount of energy that was being put into it - a reaction that 'cannot be explained by normal chemical reactions we're aware of,' according to Dr. Pons. .. .. . He said he was convinced his device could ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Terraforming Mars The concept of terraforming a planet is an old standby of science fiction; it is the process by which a technologically advanced race manipulates the surface and atmosphere of an uninhabitable planet so that it becomes inhabitable. We humans know to our dismay that we have the capacity to modify the earth's environment, but could we perhaps exercise better judgment and terraform Mars? C.P . McKay et al have looked into this possibility: "From our analysis, one could propose the following sequence of events: production of CFCs (or other greenhouse gases) starts on Mars and the surface temperature warms up by about 20 K. The regolith and polar caps release their CO2 and the pressure rises to 100 mbar. One of two things could then happen. If there were large regolith and polar CO2 reservoirs, the pressure would continue to rise on its own. If these were absent, the CO2 pressure would stabilize, and additional CO2 would have to be released from carbonate minerals. At this point (perhaps between 100 and 105 years) Mars may be suitable for plants. If there was a mechanism for sequestering the reduced carbon, these plants could slowly transform the CO2 to produce an O2-rich atmosphere in perhaps 100,000 years. If sufficient N2 could also be released from putative soil deposits, and the CO2 level kept low enough, then a human- breathable atmosphere could be produced. (McKay, Christopher P., et al; "Making Mars Habitable," Nature, 352:489 ...
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... Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Degruyerizing Switzerland Some of those astounding "holes" in the integument of Switzerland have been made less mysterious by one of our Swiss readers. Two holes, which we did not mention specifically, have turned out to be a hoax and a mundane sinkhole. The hole at Confignon, which we did pinpoint, was actually 66 feet in diameter and 40 feet deep; but, according to the official geologist of the Geneva Canton, it was simply subsidence due to the drilling of a tunnel. Only the hole at Begnins (actually discovered December 15, 1982) retains an aura of mystery: "The case was investigated by the official geologist of the Vaud Canton, who found no rational explanation. He put forward the hypothesis of the existence of an old gallery for the harnessing of water. Unfortunately, the verification of his hypothesis would be too expensive, so the hole was filled up." (Mancusi, Bruno; personal communication, September 8, 1991.) From Science Frontiers #78, NOV-DEC 1991 . 1991-2000 William R. Corliss ...
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... No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Crop circles: hoaxes or natural phenomena?The question posed by the above title was answered presumptuously and onesidedly by Time (September 23) and more objectively by Science (August 30). While Time implies that all crop circles are hoaxes, the Science article states that the "really bizarre" circles are hoaxes and that the simpler circles may have acceptable meteorological explanations. Unfortunately, the ridiculing tone of the Time article will probably set back the budding scientific interest in crop circles reported in Science. The real losers, as we shall see below, are those crop-circle experts who assert that they can always detect hoaxes. Essence of the Time article. Two cropcircle hoaxers have confessed. D. Chorley and D. Bower have admitted that they have made as many as 25-30 fake crop circles per year, since 1978, including some of the bizarre ones. All they needed was a 4-foot wooden plank, a ball of string, and a baseball cap with a wire mounted on it for sighting purposes. It was all too easy! And, they assure us, other hoaxers were active in fields at night, too. This is indeed damaging evidence to crop-circle enthusiasts. Time concluded 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 ...
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