423 results found.
... Science Frontiers ONLINE No. 21: May-Jun 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Don't build von neumann machines Back in April 1981, Frank J. Tipler published a comment in Physics Today entitled, "Extraterrestrial Beings Do Not Exist." A key element of his argument was that the first intelligent civilization would inevitably colonize the entire universe with themselves or their self-reproducing (von Neumann) machines. Since we can detect neither kind of colonist, we must be the first and only intelligent civilization. Essentially Tipler was criticizing the prevailing notion that, from a statistical point of view, there must be many other civilizations among the numberless stars and galaxies. Tipler's thoughts evoked a richly provocative group of letters, some of which were published in the March 1982 issue of Physics Today along with a closely related article by Ornstein. Ornstein tackled the problem of estimating the probability that intelligent life would evolve on other planets from a biologist's perspective. Whereas some physical scientists have set this probability at about 1.0 , Ornstein inclines toward 10-9 , believing that intelligent life is probably unique to the earth. But concludes Ornstein, the 15 separate developments of eyes among disparate terrestrial organisms may infer some unrecognized directing factor in evolution that would force him to revise his estimate upwards drastically. On the other hand, those 15 eyes might indicate a common, but still undiscovered, eye-possessing ancestor far back along evolution's track. The fossil record might be mute on this matter ...
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... Science Frontiers ONLINE No. 21: May-Jun 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Natural lasers in the terrestrial and martian skies?In a current laser patent dispute, one side claims that a certain laser patent is invalid because natural phenomena cannot be patented under U.S . law. It seems that last year, Michael Mumma and colleagues at Goddard Space Flight Center and the University of Maryland discovered a 10-micrometer (infrared) laser in the Martian atmosphere. This laser is located about 75 kilometers above the surface, is optically pumped by the sun, and radiates an astonishing 101 2 watts. The terrestrial atmosphere may contain a natural 4.3 -micrometer laser, for auroras are accompanied by very intense molecular emissions at this wavelength. (Raloff, J.; "Gould Laser Patent Ruled Invalid -- So Far," Science News, 121: 199, 1982.) From Science Frontiers #21, MAY-JUN 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 18: Nov-Dec 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Life's origin within the earth?Biologists usually hark back to warm, sunlit swamps and tidal pools when contemplating the origin of life. Lately, Hoyle has proposed a cosmochemical origin (see OR DID IT DRIFT IN FROM WITHOUT? ). Few look within the earth. Yet, when Mt. St. Helens erupt-ed it essentially sterilized all lakes and ponds in the immediate area as far as known life forms were concerned, and then introduced previously unknown chemosynthetic bacteria. At least, this is one interpretation. Scientists at Oregon State University found the waters around the volcano to be teeming with these bacteria, up to a billion per drop. The bacteria resemble nothing in the local soil but do seem related to bacteria existing around Precambrian volcanos. (Anonymous; "Secrets of Life in a Volcano?" Boston Globe, July 14, 1981.) Comment. Were the new bacteria in the volcanic ejecta or had they just gone unnoticed in the soil? Could the hot rocks, geothermal brines, and restless magmas beneath our feet be the real cradle of terrestrial life, with photosynthesis-dependent surface species being relatively unimportant to the big picture? From Science Frontiers #18, NOV-DEC 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 8: Fall 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Iridium And Mass Extinctions Alvarez and his colleagues at the University of California, while chemically analyzing a series of sedimentary strata from Italy, discovered that one layer had 25 times the concentration of iridium residing in adjacent strata. The iridium-rich layer forms the boundary between the Cretaceous and Tertiary periods, 65 million years ago. During that death-filled interval, 50% of the earth's genera were wiped out. Such are the two correlated facts: iridium increase and mass extinction. But do they have the same cause? Alvarez et al point out that iridium is rare on earth but much more common out in space. The anomalous concentration of iridium could have been injected by a massive solar flare, a big meteor impact, or come other extraterrestrial catastrophe. Thus is catastrophism being resurrected. (Anonymous; "An Iridium Clue to the Dinosaur's Demise," New Scientist, 82: 798, 1979.) From Science Frontiers #8 , Fall 1979 . 1979-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 12: Fall 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Currents Of Life Danny Brower and Richard McIntosh of the University of Colorado at Boulder have discovered that growing cells apparently generate electrical fields that control the shapes of living organisms. They have been experimenting with a disc-shaped alga with a lobed edge. Normally the algo reproduces by splitting in half, with each half regenerating the lost half. Nicely symmetric discs are manufactured. But if an external electrical field (about 14 volts/cm) is applied across the nutrient medium, the regeneration geometry is distorted. The experimenters surmise that the membrane chemistry is affected by the external field which augments or reduces cell-created electric fields. (Anonymous; "Electric Charges May Shape Living Tissue," New Scientist, 86:245, 1980.) Comment. Natural external electric fields, such as the atmospheric potential gradient, may therefore have some biological effects, as some experiments with electricity and plant growth have proven. From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 15: Spring 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Those Darn Quarks There's no escaping it, those fractionally charged niobium balls just can't be swept under the rug. In fact, more recent experiments have served only to accentuate the anomaly. Researchers at Stanford University have been magnetically suspending superconducting niobium spheres in a modern version of Millikan's oil-drop experiment. With the niobium spheres thus suspended, their net electrical charges can be measured. The trouble is that several of the spheres have fractional electrical charges -- + 1/3 or -1 /3 electronic charges. For decades the charge on the electron was supposed to be the basic, indivisible natural unit of electrical charge. In 1964, however, theorists began muddying the waters with talk of new fundamental constituents of matter called quarks, which could possess 1/3 or 2/3 electron charges. No one really expected that quarks, if they existed at all, would be floating around free. But the niobium balls tell us that not only are quarks free but that we could have detected them with relatively simple experiments decades ago if we had not been so blinded by the idea of integral electronic charges. (Robinson, Arthur L.; "Evidence for Free Quarks Won't Go Away," Science, 211:1028, 1981.) From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 15: Spring 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is your brain really necessary?John Lorber, a British neurologist, has studied many cases of hydrocephalus (water on the brain) and concluded that the loss of nearly all of the cerebral cortex (the brain's convoluted outer layer) does not necessarily lead to mental impairment. He cites the case of a student at Sheffield University, who has an IQ of 126 and won first-class honors in mathematics. Yet, this boy has virtually no brain; his cortex measures only a millimeter or so thick compared to the normal 4.5 centimeters. Although the deeper brain structures may carry on much of the body's work, the cortex is supposed to be a late evolutionary development that gave humans their vaunted mental powers and superiority over the other animals. If the cortex can be removed with little mental impairment, what is it for in the first place? (Lewin, Roger; "Is Your Brain Really Necessary?" Science, 210:1232, 1980.) Comment. Brain size, then, may mean nothing in comparing ancient and modern human skulls or human brain capacity with those of animals! Where is the seat of intelligence? In some cases of hydrocephalus, the cortex is only paper-thin, but little mental impairments is apparent. From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 17: Fall 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why conserve junk?A. Jeffries, working at Leicester University with globin genes from man and related primates, has been studying how these genes direct the blood cells to make the alpha and beta chains of hemoglobin. Jeffries' analyses seem to indicate that the genes now coding for these hemoglobin chains are almost identical to those existing in human ancestors some 500 million years ago. Two curious facts have cropped up, however. First, about 200 million years ago, these genes were modified very slightly and relocated to entirely different chromosomes. Second, 95% of the DNA associated with these genes is "junk" -- with no known use. Why did nature conserve junk for 500 million years? Are vital genes in the habit of jumping from one chromosome to another? (Yanchinski, Stephanie; "DNA: Ignorant, Selfish and Junk," New Scientist, 91:154, 1981.) From Science Frontiers #17, Fall 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 15: Spring 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Distant galaxies look like those close-by Apropos the preceding item that the Expanding Universe Theory may be flawed, astronomers have discovered that supposedly distant galaxies look pretty much like those in our immediate neighborhood. Specifically, galaxies 10 billion light years away differ little spectrally speaking from those only a billion light years away. The point is that the distant galaxies should appear 9 billion years younger because their light took that long getting here. They look the same, and that fact could imply: (1 ) Galaxies mature rapidly and do not change much after a billion years; (2 ) Our cosmic time scale is all wrong; (3 ) There was no Big Bang and galaxies may have widely varying ages; or (4 ) None of the above. (Anonymous; "Most Distant Galaxies: Surprisingly Mature," Science News, 119:148, 1981.) Reference. Distant galaxies are anomalously blue. See AWF1 in our Catalog: Satrs, Galaxies, Cosmos. For ordering information, visit: here . From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
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... restated by R.A . de Bie in a letter to Nature about the possibility of life in outer space. He observes that terrestrial life, according to Gaia-thought, will naturally develop a species that can carry life off the planet to new and safer environs. Humankind, of course, is the first attempt we know of to create such an agent. Other planetary systems might have differently constituted agents. (de Bie, Roeland A.; "The Ultimate Question," Nature, 295:8 , 1982.) Comment. To extend the biological analogy, the appearance of humankind represents the "fruiting" or "spore" stage of composite earth life. Humankind or some equivalent life form would thus be an inevitable development of any life colony in the broad and seething universe of galaxies. From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R. Corliss ...
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... (the gravitational constant) using the old Cavendish Balance. In this paper, Stacey and Tuck offer a disturbing collection of values of G determined from geophysical measurements; i.e ., measurements in mines, boreholes, and under the sea. These measurements are unanimous in producing G's that are larger than the usually accepted value by about 1%. Furthermore, the deeper the experiment, the greater the departure from the standard value. (Stacey, F.D ., and Tuck, G.J .; "Geophysical Evidence for Non-Newtonian Gravity," Nature, 292:230, 1981.) Comment. These geophysical measurements must be added to recent laboratory experiments indicating that gravity may not be best described by an inverse square law. See our Handbook Mysterious Universe. Ordering details here . From Science Frontiers #17, Fall 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 9: Winter 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Large, unseen mass is pulling earth toward it Recent measurements of the cosmic microwave background indicate that the earth moves relative to it. New cosmic X-ray data from the satellite Ariel 5 suggests that a large, hitherto unsuspected mass is located in the same direction that the earth is moving. Thus, both X-ray and microwave data could be explained by supposing this mass to be large enough to pull the earth (and our Galaxy) toward it. This mass would have to be about 10 billion light years away and weigh as much as 100 million Galaxies. Such a gigantic blob or inhomogeneity in the universe would be very difficult to explain. As it is, the aggregation of stars into galaxies after the Big Bang remains poorly understood. The bigger the inhomogeneity, the harder it is to account for. The Big Bang should have spread matter out pretty evenly. (Anonymous; "Large Mass May Pull Earth Through Space," New Scientist, 83:21, 1979.) From Science Frontiers #9 , Winter 1979 . 1979-2000 William R. Corliss ...
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... neutrino is now thought to come in three varieties -- electron neutrino, muon neutrino and tau neutrino. And a number of experiments are showing hints that a neutrino has a small mass and that it can oscillate from one variety to another." These experiments are not yet conclusive; and if the neutrino mass is not zero, it hardly weighs more than the grin of a Cheshire cat. But taken together, the laboratory results confirm that neutrinos are perplexing particles. Are they different entities or a single species wearing different costumes? The implications of the recent measurements are far-reaching: Physicists believe that there are a billion neutrinos around for each nucleon (proton, neutron, etc.) so that if neutrinos possess just a hint of mass, they will dominate the mass of the universe; and Measurements of solar neutrinos fall short by a factor of three of what theory says the sun should spew out. This discrepancy could be explained if the solar neutrinos change from electron neutrinos to another form during their flight from the sun to earth, for the terrestrial neutrino detectors measure only electron neutrinos. (Anonymous; "Do Neutrinos Oscillate from One Variety to Another?" Physics Today, 33:17, July 1980.) From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...
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... inner planets. Astronomers always expected that the stars rotating around the massive hubs of the galaxies would obey these laws in a like manner. No such luck! Doppler measurements of galaxy rotations made by Vera C. Rubin and her colleagues, at the Carnegie Institution, indicate that most stars out near the galactic rims rotate just as fast or faster than those closer to the hub. Astronomers suppose that this anomalous rotation may be due to halos of undetected burntout stars and/or gas fringing the galaxies. Such halos would dis-tort the inverse-square-law field, permitting the observed anomalous rotation. (Anonymous; "Fast-Spinning Galaxies," Science Digest, 89:18, November 1981.) Comment. No one has yet discovered these hypothetical halos of mass. The universe seems to be full of "missing mass." An unpopular alternative would be the admission that Newton's Law of Gravitation does not hold on the galactic scale. From Science Frontiers #19, JAN-FEB 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 24: Nov-Dec 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Early Chinese Voyages To Australia Dr. Alan Thorne, at the Australian National University, after studying early human fossils from both Australia and China, concludes that there was a significant movement of people from the Chinese coast to North Australia at least 10,000 years ago. He hypothesizes that the Chinese built sea-going rafts of bamboo and explored Indonesia as well as the Australian coast. (Anonymous; "Chinese 'First to Australia'," Melbounre Sun, August 14, 1982. Cr. G.D . Thompson.) Comment. The China-to-Australia trip is simplified by island-hopping, but the existence of an early Chinese sea-faring capability has later significance for the Americas, too. From Science Frontiers #24, NOV-DEC 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 12: Fall 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Gravity down, mass up The variation of the gravitational constant, G, with time would not be considered seriously were it not for the surprising coincidence of two enormous dimensionless numbers: (1 ) The ratio of the electrical to gravitational force between the electron and the proton in a hydrogen atom; and (2 ) The ratio of the age of the universe and the atomic unit of time. If these two ratios are truly equal, then G must decrease with time. Beyond the unstable feeling one gets, there is nothing in physics or cosmology to discourage a belief in time-varying gravity. Indeed, some as-tronomical data weakly support the idea. It is geophysics, though, where one finds strong evidence. Measurements of the decreasing length of the day and the expansion of the earth give about the same value for a decreasing G -- after other contributing factors have been eliminated. An interesting consequence of all this is that astrophysical theory seems to require that a decreasing G be balanced by increasing mass. Experiments are now underway to detect the continual creation of mass in terrestrial objects. (Wesson, Paul S.; "Does Gravity Change with Time?" Physics Today, 33:32, July 1980.) From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 20: Mar-Apr 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A BIG VOID IN SPACE OR A DEFECTIVE YARDSTICK?R. Kirshner and colleagues have discovered an immense void almost completely devoid of galaxies. Smaller voids have been found in other surveys of the heavens, but this one is too big to explain away in terms of random variations in galaxy distribution. Kirshner et al carefully measured galactic redshifts in three widely separated regions of the sky and found almost no galaxies in the redshift velocity interval 12,000 to 18,000 km/sec in all three areas. One interpretation of this huge gap is that the initial post-Big-Bang distribution of matter in the universe was unexpectedly lumpy. A further problem arising is that such a large void should show up as a blip in the 3 K cosmic background radiation -- but it doesn't . (Anonymous; "Deep Redshift Survey of Galaxies Suggests MillionMPC3 Void," Physics Today, 35:17, January 1982.) Comment. A less popular possibility is that galaxy redshifts do not measure distance at all and that no void exists. Reference. Cosmic voids are cataloged at AWB3 in Stars, Galaxies, Cosmos. For ordering information, visit: here . From Science Frontiers #20, MAR-APR 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 4: July 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A New Cosmic Heresy Often the simplest of observations will have the most profound consequences. It has long been a cornerstone of modern science, to say nothing of man's cosmic outlook, that the earth attends a modest star that shines in an undistinguished part of a run-of-the-mill galaxy. Life arose spontaneously and man evolved on this miscellaneous clump of matter and now directs his own destiny without outside help. This cosmic model is supported by the Big-Bang and Expanding Universe concepts, which in turn are buttressed by the simple observation that astronomers see redshifts wherever they look. These redshifts are due, of course, to matter flying away from us under the impetus of the Big Bang. But redshifts can also arise from the gravitational attraction of mass. If the earth were at the center of the universe, the attraction of the surrounding mass of stars would also produce redshifts wherever we looked! The argument advanced by George Ellis in this article is more complex than this, but his basic thrust is to put man back into a favored position in the cosmos. His new theory seems quite consistent with our astronomical observations, even though it clashes with the thought that we are godless and making it on our own. (Davies, P.C .W .; "Cosmic Heresy?" Nature, 273:336, 1978.) From Science Frontiers #4 , July 1978 . 1978-2000 William ...
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... Science Frontiers ONLINE No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects First writing may have been three-dimensional Archeologists have long been puzzled by large numbers of small, fired-clay objects found in the Middle East. Denise Schmandt-Besserat, University of Texas at Austin, believes that these small geometrical shapes (cones, spheres, disks, etc.) were actually symbols used in commerce to indicate numbers and types of commodities (sheep, oil, etc.). Generally less than an inch in size, the clay objects were apparently sealed in hollow clay spheres to make bills of lading as early as 8,500 B.C . This is 5,000 years before two-dimensional clay tablets were introduced for writing. (Anonymous; "From Reckoning to Writing," Scientific American, p. 58, August 1977.) Comment. These clay symbols might be related to the painted pebbles and small carved stone balls found in Europe. From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...
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... One's first inclination is to attribute such detonations to supersonic aircraft and missles, but the U.S . military immediately denied they were to blame. Seismic noises come to mind next, but the frequent failure to register the events on seismographs suggested an atmospheric phenomenon. The National Enquirer (January 24, 1978) rather predictably linked the booms to UFOs. In the federal government, the Naval Research Laboratory (NRL) was assigned the task of tracking down the booms. In March, NRL reported that all of the 183 detonations they investigated were due to supersonic aircraft. That seemed to end the matter -- just as the Condon Report signalled the demise of UFOs!! The booms had an interesting side effect: they triggered urgent requests for the two Strange Phenomena sourcebooks from several universities, think-tanks, and intelligence agencies. There may be more to this than meets the ear. For more information, see Walter Sullivan's articles in the new York Times of January 13 and 19, 1978. The Strange Phenomena sourcebooks are superceded by a series of four geophysics Catalogs. One of these, Earthquakes, Tides, Unidentified Sounds, describes many other mysterious "booms." More information here . From Science Frontiers #3 , April 1978 . 1978-2000 William R. Corliss ...
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... 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cattle Mutilations Called Episode Of Collective Delusion During the past several years, farmers in the western states have been reporting dead cattle that seemed strangely mutilated. Soft, exposed parts, such as the ears and genitals, were apparently removed with surgical precision. Some corpses seemed bloodless. Local papers blamed satan worshippers and UFO occupants. This paper analyzes the 1974 mutilation "flaps" in South Dakota and Nebraska, with special attention to the rapid rise and equally rapid decline of public interest as measured by newspaper coverage. In the opinion of the author, these two episodes are classic cases of mild mass hysteria, similar to the occasional crazes of automobile window-pitting. In all cases where university veterinarians examined the corpses, the mutilations were ascribed to small predatory animals. The veterinarians also pointed out that blood coagulates in a couple days after death, accounting for the frequent "bloodless" condition. With such expert reassurances, the "mass delusions" subsided quickly. Cattle mutilation flaps are thus seen by the author as episodes when people interpret the mundane in bizarre new ways, due perhaps to cultural tensions. It is noted, however, that expert veterinarians examined only a few of the dozens of mutilations, and that some people rejected the above commonplace explanations. (Stewart, James H.; "Cattle Mutilations: An Episode of Collective Delusion," The Zetetic, 1:55, Spring/Summer 1977.) From Science Frontiers #1 , September 1977 . 1977- ...
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... No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Animal Behavior Prior To The Haicheng Earthquake The catastrophic Chinese Haicheng earthquake of 1975 was preceded by many reports of unusual animal behavior. Beginning in December 1974, lay observers noted dazed rats and snakes that appeared to be "frozen" to the roads. In February, reports of this type increased markedly, including observations of general restlessness and agitation of the larger animals, such as cows and horses. Rats now appeared as if drunk. Chickens refused to enter their coops and geese frequently took to flight. Chinese scientists seem convinced that such animals behavior might help predict some of the larger earthquakes. Further research is being undertaken at the Institute of Biophysics in Peking and at Peking University. (Molnar, Peter, et al; "Prediction of the Haicheng Earthquake," Eos, 58:254, 1977.) From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...
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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 CROP CIRCLE FOUND INSIDE A FENCED COMPOUND IN JAPAN Y-H . Ohtsuki, a physicist at the Waseda University, Tokyo, reports (in pretty good English): "A large circle appeared in the doublyfenced compound of a Radio Nippon transmitting station near Tokyo. At the same time the survey protection equipment of the transmitting system worked abnormally. This shows that the circles effect is not simply a matter of hoaxing. It was the night of 31 August 1991 when the survey protection equipment (electromagnetic-noise warning detector) of the transmitting system of the Radio Nippon station in Kisarazu, Chiba prefecture, worked seventeen times during 40 minutes from 2.00 a.m . (that is, on 1 September). This is a wholly abnormal occurrence because the survey protection goes off only once a week on average. Next morning one of the staff discovered a 10-metre circle in the doubly-fenced ground of the Radio Nippon station. The grass in the ground was pushed down, but without leaving a clear spiral mark. The ground area is approximately 20,000 m2 , and three antenna towers are located in the ground. The fences are formed by 2.5 -m -high wire netting and the station was watching for 24 hours. There were only two men in the station, and they were in a watching room for eight hours from 10.00 p.m . to 6.00 ...
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... distant groups seem to have members with dispersions up to 1000 km/s . "Jack Sulentic spoke about multiple redshifts seen in some quasars and AGNs. Line profiles come in all types; symmetric, double-peaked, and asymmetric. Relative shifts are both toward the red and the blue. Arguments against an accretion disk/black-hole model were reviewed. Apparently a non-Doppler redshift-blueshift mechanism is needed. For example, one broad line (in 1404+ 28) shifts back and forth by 1000 km/s relative to another narrow H-line, with an average offset of 2000 km/s . These shifts correlate perfectly with intensity." Less technically speaking, the longheld belief that redshifts are solely due to the Doppler effect is receding along with the expanding universe! (Van Flandern, T.; "Recent Meeting: XIIIth Krakow Summer School of Cosmology," Meta Research Bulletin, 1:25, September 15, 1992.) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 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 "AMERICA BEFORE COLUMBUS" CONFERENCE Tennessee Bat Creek stone with supposed Hebrew characters Last summer, the New England Antiquities Research Association (NEARA) organized a meeting of off-mainstream archeologists at Brown University. As readers of Science Frontiers have long been aware, the New World was not new to many ancient voyagers. A review of the Conference in the New York Times gave wide exposure to some of these controverted pre-Columbian contacts: 5000-year-old pottery found in coastal Peru bears an uncanny resemblance to pottery made in Japan during the same period. How could the Japanese have reached Peru circa 3000 BC? Easy! Storms could have blown fishermen into the trans-Pacific current. (See "Current Treads" item under GEOPHYSICS.) The Zuni Indians of New Mexico may have been influenced by Japanese voyagers in the Thirteenth Century, as suggested by their distinctive blood chemistry, language, and culture. 700-year-old temple art from India reveals detailed depictions of ears of corn, which was supposedly unknown outside the Americas until after Columbus. Jewish refugees from the Roman Empire may have somehow reached eastern Tennessee, if the famous Bat Creek Stone really bears an ancient Hebrew inscription. The grave in which the stone was found has been carbon-dated between 32 and 769 AD. (Wilford, John Noble; "Case for Other Pre-Columbian Voyagers," New York Times , July 7, 1992 ...
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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 ASTRONOMERS COPE WITH BOTH CHAOS AND TOO MUCH ORDER IN THE UNIVERSE The solar system . The recent advent and fast rise in popularity of chaos theory is destroying some favorite, long-sworn-to notions of astronomers. One in particular is solar-system stability. Could any of the planets pop out of their orbits and embark upon wild and unpredictable trajectories? "We can't rule it out," stated J. Wisdom, an MIT planetary scientist. (Freedman, David H.; "Gravity's Revenge," Discover, 11:54, May 1990.) Comment. Well, OK, there is a tiny theoretical chance that such an event might occur in the future, but it certainly never happened in the past. To admit such a possibility would open that Pandora's Box of vigorously suppressed catastrophic scenarios. Reference. More information on solarsystem instability may be found in ABB1 in the catalog: The Sun and Solar System Debris. Ordering details here . The universe as-a -whole . The disovery of the Great Wall of galaxies (SF#67) and the regular clumping of galactic matter (SF#69) has greatly surprised astronomers, who have been emphasizing how uniformly distributed galactic matter should -- according to theory, at least. Now, D.C . Koo, at the University of California at Santa Cruz, says, "The regularity is just mind- ...
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... "Ghostly Antibodies Baffle Scientists," New Scientist, p. 39, July 14, 1988. Also: Pool, Robert; "Unbelievable Results Spark a Controversy," Science, 241: 407, 1988. As a matter of fact, the second phase of the controversy has already begun. The July 28 issue of Nature reports that seven repetitions of the dilution experiment produced four positive and three negative results. The three negative experiments were the only double-blind versions of the basic experiment that have been performed so far. "Double-blind" means that "all test tubes had been randomly coded twice. The person measuring the cells' reaction to the antibodies could not have been influenced by a preconcieved idea of the results." These seven repetitions were carried out at the University of Paris-Sud laboratory of J. Benveniste. In a reply to the July 28 report in Nature, Benveniste complains that the three double-blind tests, the negative ones, "worked poorly mainly due to erratic controls." (Bell, L.; "Nature Douses Dilution Experiment," Science News, 134:69, 1988.) Comment. Closely related to the French dilution experiments with antibodies was a clinical trial of a homeopathic treatment for hay fever, carried out by D. Reilly, of the Glasgow Royal Infirmary, and published in The Lancet about two years ago. "In trials with double-blind controls, he and his colleagues found that a solution, so dilute as to contain no molecules of pollen from the original solution, reduced allergic symptoms ...
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... Science Frontiers ONLINE No. 158: Mar - Apr 2005 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Untranslatable Mohenjo-Daro Script? A very Early Compound Machine Khufu's Secret Burial Chamber: A Phony Discovery? Astronomy Allez Allez Old Galaxies in a Young Universe Biology Do Dolphins Sense the Coriolis Force? Disappearing Animals Wayward DNA: Does it Affect the Shapes of Family Trees? Geology Bermuda Triangles in the Desert! Plate-techtonics 'theory' is slowly and inevitably Dyning Geophysics Hum Update Psychology Motherese: A precursor of Human Language? Unclassified Multimedia Communications in the Cosmos Computer Bacteria ...
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... Science Frontiers ONLINE No. 154: Jul - Aug 2004 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Click-click, Click-click-click, Click, Click-click, Click (Click languages) 200 Mystery Towers Some notes on anomalous early Americans Astronomy Biological Hot Spots on Mars? Could we Really be at the Center of the Universe? The Black Drop Effect Biology Shallow Samples Reveal Deep Ignorance Are Nanobacteria Alive or just Strange Crystal? Geology The Carbonate Columns of Pobiti Kamani Fairy Circles vs Fairy Rings Geophysics Never! Never! Never! The Whymper Apparation Unclassified Sorry Rocks ...
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... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Accelerating Universe Many laymen are uncomfortable with the idea that the entire universe originated at an infinitesimal point and is now expanding away from this cosmic navel. Many astronomers are equally disturbed by the recent discovery that all these fleeing stars and galaxies are not being reined in by the force of gravity. In fact, observations of distant supernovas indicate that this exodus of matter is actually speeding up. Some universal repulsive force, it seems, is operating on very large scales of distance. From an unknown somewhere energy is being added to all constituents of the cosmos. The universe is more than a cloud of debris flying away from the Big Bang's Ground Zero. Somewhere, perhaps beyond the ken of our primitive instruments, is a fount of energy of which we know nothing. All this is a serious challenge to our understanding of space, time, and matter. Cosmologists are now appealing to quantum mechanical "shimmers," to "X -matter," and to a property called "quintessence." (Glanz, James; "Exploding Stars Point to a Universal Repulsive Force," Science, 279:651, 1998. Also: Glanz, James; "Astronomers See a Cosmic Antigravity Force at Work," Science, 279:1298, 1998.) Comment. When theorists toss around terms like "X -matter" and "quintessence," you can be sure that the basic laws of the universe ...
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... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The End Of The Old-Model Universe That cosmology is in flux is apparent in the following sentence found in Nature: " The standard ideas of the 1980s about the shape and history of the Universe have now been abandoned -- and cosmologists are now taking seriously the possibility that the Universe is pervaded by some sort of vacuum energy, whose origin is not at all understood." Does this mean that the Big Bang, the mainstay of the astronomy we were taught in school, is now being cast aside? After all, the Big Bang does model fairly well three important observations: The apparent expansion of the universe; The 3 K microwave background; and The abundances of the light nuclei. But try as they may, cosmologists have not been able to coax the Big Bang model to explain the large-scale lumpiness and structure of the galaxies and galaxy clusters. One problem with the Big Bang is that it has too many free parameters -- too much theoretical slack. Many cosmologists are now looking for a better model. This better model, to use the words of P. Coles, should be more "exciting" and "stranger," something "perhaps not even based on General Relativity." (Coles, Peter; "The End of the Old Model Universe," Nature, 393:741, 1998.) Questions. Isn't cosmology already already "strange" enough? Since when ...
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... Science Frontiers ONLINE No. 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Old Galaxy In A Young Part Of The Universe As the Hubble Space Telscope has probed ever farther toward the supposed edge of the universe, it has discerned. as expected, many youthful-looking galaxies. Since such deep-viewing telescopes are thought to be looking far back into time as well as space, youthful galaxies are not only expected but demanded by the Big-Bang/expanding universe theory. Unfortunately for theory, these telescopes have also identified a handful of apparently very old galaxies cavorting amidst the youthful ones! "The problem, if conventional cosmological models are correct, is that galaxies that old and that far away simply should not be there. The observation tightens the thumbscrews on the Einstein-de Sitter cosmological model, and offers evidence that at least some galaxies formed at very early epochs, within a billion years after the Big Bang." (Kennicutt, Robert C., Jr.; "An Old Galaxy in a Young Universe," Nature, 381:555, 1996) Comment. A similar age discrepancy has been claimed for some galaxies that seem to harbor stars older than the universe itself! (SF#97) Reference. The subject of galaxy distribution is covered in Chapter AWO in the Catalog: Stars, Galaxies, Cosmos. For a description of the book, visit here . From Science Frontiers #107, SEP-OCT 1996 . 1996-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ten Strikes Against The Big Bang T. Van Flandern, editor of the Meta Re search Bulletin, has compiled a list of Big-Bang problems -- and it is not a short list. Can the Big-Bang paradigm be that shaky? Like Evolution and Relativity, the Big Bang is usually paraded as a proven, undeniable fact. It isn't . Static-universe models fit the data better than expanding-universe models. The microwave "background" makes more sense as the limiting temperature of space heated by starlight than as the remnant of a fireball. Element-abundance predictions using the Big Bang require too many adjustable parameters to make them work. The universe has too much largescale structure (interspersed "walls" and voids) to form in a time as short as 10-20 billion years. The average luminosity of quasars must decrease in just the right way so that their mean apparent brightness is the same at all redshifts, which is exceedingly unlikely. The ages of globular clusters appear older than the universe. The local streaming motions of galaxies are too high for a finite universe that is supposed to be everywhere uniform. Invisible dark matter of an unknown but non-baryonic nature must be the dominant ingredient of the entire universe. The most distant galaxies in the Hubble Deep Field show insufficient evidence of evolution, with some of them apparently having higher redshifts (z = 6-7 ) than ...
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... Science Frontiers ONLINE No. 110: Mar-Apr 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Crystalline Universe Cosmologists think in the large. Billions of stars are nothing to them. The megaparsec (3 ,528,000 light years) is but a hop, skip, and jump. A pressing question for these cosmologists searching for the really big picture is whether there is any order in the distribution of galaxies, galactic clusters, and superclusters. The scale of organization of the universe is of critical importance because it is a measure of state of the cosmos when hydrogen atoms first condensed from the seething sea of ions following the Big Bang. The prevailing expectation has been that galactic clusters and superclusters should be distributed at random; that is, no order prevails at that scale. Recent redshift measurements, however, hint more and more forcefully that the huge superclusters of galaxies are almost as neatly arranged as the atoms in a crystal. A recent paper in Nature by J. Einasto et al puts a number on the spacing of the superclusters: "Here, using a new compilation of available data on galaxy clusters, we present evidence for a quasi-regular three-dimensional network of rich superclusters and voids, with the regions of high density separated by "120 Mpc [megaparsecs]. If this reflects the distribution of all matter (luminous and dark), then there must exist some hitherto unknown process that produces regular structure on large scales." (Einasto, J., et al; "A 120 ...
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... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Too Much Order In The Early Cosmos Astronomers are becoming accustomed to the idea that many nearby galaxies are concentrated in spherical shells separated from one another by about 400 million light years. This onion-skin geometry is inferred from the fact that galactic red shifts cluster around specific values; that is, they are quantized. Since red shifts are held to be proportional to distance in the expanding universe paradigm: Voila! We have shells! This evidence of nearby cosmic order does not seriously disturb cosmologists, because in the nearby galaxies we are seeing that portion of the universe that is billions of years old. In other words, nearby there has been enough time for some degree of order to have evolved out of the primordial chaos of the Big Bang. Now though, "deep" surveys of galaxies, looking much farther back in time, still show clustered red shifts -- not the expected increasing chaos required by theory. Although the surveys are incomplete, astronomers are discomfited by this early lumpiness. Their theories say that there was not enough time for galaxies to organize themselves into sheets, shells, and skeins. If further "deep" probings of the cosmos confirm this redshift clustering, we may need a new evolutionary scenario. Good bye Big Bang and expanding universe! (Vogel, Gretchen; "Goodness, Gracious, Great Walls Afar," Science, 274:343, 1996. Vergano, D.; "New ...
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... Science Frontiers ONLINE No. 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Day The Laws Of Physics Changed Well, maybe there weren't such things as "days" as we now know them back when the universe was very young. In fact, "time" then might have been different from "time" now. This sounds like so much physics-speak; but, seriously, during the birth pangs of the universe, there seems to have been what cosmologists call a "phase change," a mysterious moment when the laws of physics suddenly became more complex. You can reasonably ask: "How can supposedly immutable physical laws change?" The answer seems to be that anything can happen when something is being made from nothing! This apparent plasticity in the laws governing the cosmos is suggested by observations of how galaxies in the early universe were distributed. The standard theory for the origin of the universe predicts that clumps of galaxies of all sizes were created early on. This is not what a survey by S. Sarkar et al, at the University of Oxford, found. A split second after the Big Bang, galaxies were organized in structures about 300-million light years across. The standard model of particle physics cannot account for this preferred size. The theorists' recourse is a phase change, a point in time when the warp and woof of the universe changed; that is, change the rules until they fit. (Chown, Marcus; "In the ...
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... life, and they are also slightly left-handed. For some unfathomed reason, chemical and biological evolution both tilt to the left! (Bada, Jeffrey L.; "Extraterrestrial Handedness?" Science, 275:942, 1997. Cronin, John R., and Pizzarello, Sandra; "Enantiomeric Excesses in Meteoritic Amino Acids," Science, 275:951, 1997. Also: Peterson, I.; "Left-Handed Excess in Meteorite Molecules," Science News, 151:118, 1997. Note that left-handed amino acids in the Murchison meteorite were also reported in the early 1980s: Kerr, Richard A.; "Odd Amino Acids in a Meteorite," Science, 216:972, 1982.) Comments. This discovery of a tilted universe means that we cannot confirm Martian life with spacecraft instruments that test for an excess of left-handed amino acids. Human philosophers, from the ancient Greeks to the present, like to think the universe is in balance, that equality reigns, yin and yang, and similar presumptions. But, let's face it: our particular universe is lopsided. Of course, our universe may be balanced by another one far away, where everything, including its intelligent life forms, are made from right-handed amino acids -- chemically speaking, a mirror image of our universe. Balance could thus be preserved at that scale. From Science Frontiers #111, MAY-JUN 1997 . 1997-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 115: Jan-Feb 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why did life take a left turn?Life-as-we-know-it is left-handed; that is, our amino acid molecules are levorotatory rather than the mirror-image dextrorotatory versions. Because humans "expect" symmetry in nature, it is taken for granted that everything else in the universe is split equally between leftand right-handed molecules. Earth life is just a fluke -- or is it? On September 28, 1969, organic-rich stones fell in Victoria, Australia. This was the Murchison meteorite, and it may carry a message. Over a decade ago, M.H . Engel and B. Nagy reported that the organic molecules in the Murchison meteorite were not split 50:50 between left- and right-handed versions. So contrary to expectations was this finding that most scientists assumed that the analysis was contaminated by terrestrial organic molecules. Now, M.H . Engel and S.A . Macko have refined the analytical techniques and apparently avoided any taint of contamination. Their conclusion: the Murchison amino acids still lean to the left. From all this arise several intriguing possibilities: Life on earth started split evenly between left- and right-handed amino acids, but was nudged to the left by the influx of organic-laden meteorites like the Murchison. Terrestrial life actually originated elsewhere in the universe where much matter is left-handed, including life, if ...
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... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Disorder Here Produces Order There Physicists use the word "entropy" to describe the well-observed tendency of the universe to run down; that is, become more disorderly. In some situations, though, the increase in disorder (entropy) in one part of the universe can create order elsewhere. For example, if you add tiny plastic spheres of two sizes to salty water, you will not get a uniform mixture. Instead the larger spheres will pack together into tightly ordered crystaline shapes (representing more order) while the smaller spheres become more disordered. It is like watching cream unstir itself from coffee. It smacks of magic, but it is all within the laws of thermodynamics. This strange "force" exerted by entropy may explain some puzzling biological phenomena, such as the expulsion of nuclei from mammalian red blood cells before they enter the bloodstream as sacks of hemoglobin. The idea being that the increasing entropy of the proliferating hemoglobin molecules (analogous to the smaller spheres) is maximized when the nuclei (large spheres) are squeezed out of the cells altogether. (Kestenbaum, David; "Gentle Force of Entropy Bridges Disciplines," Science, 279:1849, 1998.) Comments. The red-blood-cell example presented in the article is on shaky ground, because while mammalian red blood cells do lack nuclei those of birds and reptiles retain theirs. (See BMC6 in Mammals II .) In ...
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... Science Frontiers ONLINE No. 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ten Myths Of Science We have at hand a lengthy paper bearing the above title. It is copyrighted with ominous warnings about quotations. So, we will paraphrase a lot. The significance of the article is so great that we dare to quote the first sentence: "This article addresses and attempts to refute several of the most widespread and enduring misconceptions held by students regarding the enterprise of science." We now paraphrase the ten myths of science, as recognized by W. McComas of the School of Education, University of Southern California. McComas analyzes each "myth" in depth, explaining why it is not a "truth." Myth 1. Hypotheses turn into theories which eventually become enshrined as laws. Myth 2. Hypotheses are really only educated guesses. Myth 3. There exists a scientific method that is general and universal. Myth 4. Certainty results when facts are accumulated and analyzed. Myth 5. The scientific method leads to absolute truth. Myth 6. Science is less creative than it is procedural. Myth 7. All questions posed by the universe can be answered via the scientific method. Myth 8. High objectivity is the hallmark of science. Myth 9. Scientific knowledge is based mainly on experiment. Myth 10. Scientists always review and check the work of their colleagues. (McComas, William; "Ten Myths of Science: Reexamining What We Think We Know...," School Science ...
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... Science Frontiers ONLINE No. 110: Mar-Apr 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "PLANETARY VISIONS" DURING NDEs (Top) Global nuclear arsenal in thousands of warheads. (Bottom) number of peace-keeping missions. It is difficult to move from the universe of hard objective facts into the shadowy world of Near-Death Experiences (NDEs). Nevertheless, NDEs have elements of consistency across a wide spectrum of percipients. Mainstream scientists always explain NDEs in reductionist terms: they are merely the consequence of physiological changes taking place in the dying person's brain. Parapsychologists are more open-minded. They wonder if being near death breaks down a barrier separating the everyday, objective world from a spiritual one. If their intuition is correct, there is the thought that, by breaching this barrier during NDEs, the percipients might transcend our usual confines of time and space. At these moments, "planetary visions" beyond the moment might occur; that is, prophecy! Before chucking this issue of SF, "hard" scientists should recognize that the foregoing surmise can be tested, not as rigorously as measuring the electron's charge, but still a test of sorts. K. Ring has collected testimonies of these so-called "planetary visions" from individuals who had been clinically dead for more than 10 minutes, but who were subsequently revived (obviously!). Typical of Ring's collected testimonies was this from a 17-year-old NDE percipient: "I was informed ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is life a transitory phenomenon?We don't mean just life on earth, where it has hung on for a couple billion years, but life anywhere in the universe. Many cosmologists advance the socalled Anthropic Principle, which states that the physical constants of nature are honed to just the right values to make life possible. If the charge on the electron were a little less or the properties of carbon a bit different, life could not exist. The Anthropic Principle seems to imply that the universe was designed for earth life. But "design" is a bad word these days. It is redolent of purpose and a supernatural being. Suppose, though, that the Anthropic Principle is correct but only in our part of the cosmos and only for a little while. If the constants of nature are not really constant, life could be just a transitory phenomenon, flaring up here and there wherever conditions are ripe and the Anthropic Principle reigns. The cosmos as-a -whole might be lurching toward other goals or, perhaps, toward nowhere in particular. Enough philosophy! A team of Australian astronomers, led by J.K . Webb, has been trying to determine if the famous fine-structure constant of physics has really remained constant throughout the 12-billion years or so of the universe's history. The fine-structure constant is dimensionless and almost exactly equal to 1/137. (Why 137 ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "A FANTASTIC RESULT!"That's what Princeton astronomer N. Bahcall said of the discovery that the very early universe was already partitioned by colossal walls of galaxies hundreds of millions of light years long. That walls of galaxies exist is not a new idea, but finding that they existed shortly after the Big Bang is highly disconcerting to most astronomers. How did these walls form so early? Why hasn't the force of gravity modified the basic structure of the cosmos over the billions of years that followed the Big Bang? The astronomical quandry is this: If the very early universe looks pretty much the same as today's universe, the implication is that mass, the source of gravitational sculpting, is scarce. But this is at odds with the cosmic expansion rate which implies a much higher density of matter. (Appenzeller, Tim; "Ancient Galaxy Walls Go up; Will Theories Tumble Down?" Science, 276:36, 1997.) Comment. The existence of galaxy walls, like so many astronomical constructs, depends upon the assumption that the red shifts of galaxies are proportional to their recessional velocities and, additionally, their distances and ages. So much rides on this one assumption. The same situation prevails in biology, where everything is founded on the assumption that random mutations and natural selection can together generate any degree of complexity, sophistication, and innovation seen in nature. The history of ...
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... Science Frontiers ONLINE No. 111: May-Jun 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Life On Different Scales In SF#110, we introduced the possibility of nannobacteria: life forms that are smaller than 0.4 micron, perhaps even as small as 0.01 micron. Nannobacteria are not completely accepted as bona fide organisms. However, electron microscopes are imaging "somethings" that are very tiny and ubiquitous. We now shift speculation to life forms much larger than blue whales or even that 2,000-meter-wide box huckleberry mentioned in SF#82/170. In fact, we will transcend even Gaia; that is, earth-asanorganism (SF#56/339); and ask whether entire universes might be alive in the sense that they are governed by natural selection, can transmit hereditary information, and adapt themselves to new situations. The evidence for such large-scale living systems or super-superorganisms is widely pooh-poohed by biologists because it does not meet their definition of life; i.e ., metabolism, reproduction, etc. But perhaps they are missing something by thinking too small. In this vein, M.G . Bjomerud has opined: ". .. there is no reason to expect that super-organisms would meet criteria based on observations of individual organisms. Isn't it time to consider the possibility that the boundary between life and non-life may be diffuse, non-stationary over time, and dependent on scale?" ( ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Quantum mechanics is definitely spooky "I cannot seriously believe in [the quantum theory] because it cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance." (Ref. 1) So Einstein wrote Max Born in March 1947. Well, even Einstein could have been wrong! "It's getting even spookier out there. Particles can be strangely connected over at least ten kilometres, according to results from physicists in Geneva. Using pairs of "entangled" photons, Nicolas Gisin and his colleagues from the University of Geneva have shown that the measurement of one particle will instantaneously determine the state of the other." (Ref. 2) This particular spooky aspect of quantum mechanics was demonstrated 15 years ago over a distance of just a few meters. Many physicists had expected (probably "hoped") that this "mysterious link" between separated particles would weaken with distance. But this quantum-mechanics effect does not conform to "common-sense" expectations! Now it seems that one particle of an "entangled pair" knows instantaneously what its mate is doing, possibly even if it is located on the other side of the universe. More quantum-mechanics spookiness is seen in "tunneling" phenomena, such as that mentioned in AR#3 , where a Mozart symphony zipped through a barrier at 4.7 times the speed of ...
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... All Issues This Issue Sourcebook Project Sourcebook Subjects Biological Miscellany Sisterly synchrony. In Utah, three of E. Carey's four daughters gave birth on the same day, March 11, 1998, at 7:18 AM, 3:25 PM, and 8:58 PM. The daughters are aged 28, 27, and 24 -- no twin phenomena here. Odds against this synchrony were said to be 50 million to 1. (Anonymous; "3 Sisters Deliver 3 Babies -- All on Same Day," San Francisco Chronicle, March 14, 1998. Cr.J . Covey.) Oliver is all chimp. That aberrant chimp, Oliver, thought by some to be a humanchimpanzee hybrid (SF#110), is 100% chimpanzee say geneticists at the University of Texas. Even so, Oliver always walks erect and can mix drinks! (Holden, Constance; "Oliver no 'Humanzee'," Science, 280:207, 1998.) Phase changes. He was not frightened by a ghost or abducted by aliens, but the hair of a healthy, 45-year-old French farmer turned from black to pure white in less that 14 days. For six months the embarrassed man endured, but then over a period of four months, his hair grew back to full black. (Nelson, Douglas; "Aaaaaargh," New Scientist, p. 93, April 11, 1998.) Mummified llamas yield superior wool. The wool found on a group of mummified llamas that had been sacrificed and buried some 1, ...
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... as if it were not there. A very, very few, however, are captured in huge, fluidfilled tanks built by physicists. These trapped ghostly particles tell tales we do not yet fathom. We have mentioned the solar-neutrino problem before (SF#46/84, for example). It is one of science's more perplexing and enduring mysteries. Even the most modern, sophisticated neutrino detectors count only about one-third the number of neutrinos that the sun "should" be sending in our direction -- according to our best theories on the nuclear reactions simmering away in the solar core. To this classical neutrino problem has been added the discovery that the solar neutrino flux varies in ways difficult to explain. P. Sturrock and G. Walther, at Stanford University, scrutinized 20 years of data from a detector deep in the Homestead Mine in South Dakota and find that the neutrino flux seems to peak every 21.3 days, varying as much as 30% to 100%. It may be that the sun's fusion "engine," long thought to run steadily and smoothly, sputters in a cyclic fashion? If an automobile engine did this, we would take it to the garage! (Holden, Constance; "More Neutrino Mystery," Science, 273:1663, 1996.) The problem deepens: The first 102 days of neutrino data from Japan's new Super-Kamiokande detector suggest that the solar neutrino flux is greater at night than during the day, and that it also varies during the year. ( ...
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... . 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Bones That Don't Belong More anomalous than Kennewick Man (that 9,300-year-old skeleton from Washington with Caucasian features (SF#109), is a skull from Brazil dubbed Luzia. Luzia was a female, aged 20-25, who lived near Belo Horizonte in southeastern Brazil. Luzia's skull and other artifacts came from a campsite carbon-dated by labs in Brazil and France as being about 11,500 years old. This makes Luzia the oldest skeleton ever found in the Americas -- assuming this whole story hangs together. The 11,500-year date is impressive enough, but anthropologist W. Neves, University of Sao Paulo, asserts that Luzia's skull and teeth are not Mongoloid but really characteristic of the South Sea islanders. Such observations agree with the studies of skeletal material by J. Powell, University of New Mexico. Powell has concluded that the oldest settlers of the New World probably did not trek across the Bering Land Bridge from Asia but came from elsewhere. (Borden, Keefe; "Skull Find Redefines American Ancestry," Austin American Statesman , May 24, 1998. (Cr. D. Phelps) From Science Frontiers #118, JUL-AUG 1998 . 1998-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A RECIPE FOR WEIGHTLESSNESS?Take fifty rings of a superconducting ceramic, 27.5 centimeters in diameter, and stack them one above the other. Chill rings to -334 F. Spin rings at 3,000 rpm. You now have an antigravity machine; any object positioned above or below the rings will be weightless! This recipe is based on a claim by Finnish scientist E.E . Podkletnov at the Tampere University of Technology. Podkletnov discovered this amazing effect when researching superconducting materials, However, he used only a single ring, which resulted in a 2% weight reduction. Since antigravity effects are probably additive, it seems reasonable that fifty rings will create a 100% weight reduction. Obviously, more than fifty rings will be required to launch spacecraft from earth! Sure, it's a wild claim, but NASA is checking it out at the University of Alabama in a project headed by N. Li. (Holden, Constance; "NASA's Fling with Antigravity," Science, 274:183, 1996. Also: Port, Otis; "Take That, Isaac Newton," Business Week , p. 42, September 30, 1996. Cr. E. Murphy.) Comment. Facetiousness aside, it is pertinent to add here that physicist P.M .S . Blackett once seriously hypothesized that a magnetic field is generated by a rotating mass, such as the sun. ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Surface life (us!) only a "special case"T. Gold is again challenging our most cherished ideas about geology and life's domain. In the subject article -- his latest paradigm-shaker -- he first reviews the abundant evidence for the existence of large quantities of primordial hydrocarbons deep within the earth and (probably) many other planets throughout the universe. Associated with these hydrocarbons is a "deep, hot, biosphere." By "deep" Gold means 100 kilometers and more. It is this combination of a deep reservoir of hydrocarbons and life forms (probably mostly bacteria) that can account for (among other things): The fact that all helium comes from oil and gas wells The fact that the composition of petroleum is not what one would expect from the decomposition of plants and animals. It is really a mixture of primordial hydrocarbons with some added biochemical by-products; that is, products of that "deep" biosphere. Since carbonaceous material is now known to be common in the solar system (comets, carbonaceous chondrites, etc.), it is likely that many other planets also possess deep stores of hydrocarbons. In these deep, warm, protected, energyrich "wombs," complex biospheres might readily evolve. In Gold's view, deep biospheres may be the rule and surface life the exception! Finally, Gold sees life as merely a natural process with no ...
Terms matched: 1 - Score: 28 - 15 May 2017 - URL: /sf114/sf114p06.htm
