2482 results found.
... Science Frontiers ONLINE No. 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Does The Earth Breathe?In a superficial sense, the answer is certainly YES. By way of illustration, when a low-pressure area moves in, higher-pressure air residing in deep wells and caves comes rushing out (" exhaling")! Attach a whistle to a likely well and you have a "weather well" that warns of the impending change. The exhalations of large caves (" blowing caves") can be copious and strong; so much so that some aeronautical pioneers tested their airplane models at cave mouths. In a deeper sense, there are new measurements suggesting that the earth's solid crust also contracts by minute amounts in an annual cycle. For example, 50 GPS (Global Positioning System) stations in northeastern Japan detect east-west contractions of the crust of about 50 millimeters/year. The compressions are 15% faster in the fall and 15% slower in the spring. The same rhythmic squeezing has been discerned in a 150-meter tunnel dug into granite bedrock in the same region. To these instrument measurements can be added the strong tendency of some major volcanos to erupt in the fall when the biggest squeeze is on. The analogy of toothpaste being squeezed out of a tube is inescapable here! The cause of these annual "breathing" cycles is uncertain. (Kerr, Richard A.; "Earth's Breathing Lessons," Science, 291:584, ...
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... Science Frontiers ONLINE No. 42: Nov-Dec 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fungus Manufactures Phony Blueberry Flowers Mummy-berry disease is a fungus that preys on blueberries. It propagates itself by turning blueberry leaves into whitish, bell-like structures resembling true blueberry flowers. Bees deceived by this ruse land on the fake blossoms, pause for a moment to sip a sugary fluid (fortuitously) exuding from lesions on the leaves, accidentally pick up some fungus spores, and then fly off to true blueberry blossoms. The transferred spores infect other blueberry plants, causing them to produce white mummy-berries rather than blueberries. When spring comes round, the fungus-filled mummy-berries release the fungus to the leaves, and the cycle continues. (Anonymous; "A Fungus That Courts with Phony Flowers," Science 85, 6:10, September 1985.) Comment. The explanations usually served up for such remarkable adaptations are: (1 ) It is the product of chance and natural selection; and (2 ) The Creator made things this way. Are there not other possibilities? Perhaps the fungus somehow stole the blueprints for the flower from the blueberry's genome; i.e ., genetic endowment. After all, viruses are always subverting cell machinery. From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
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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 The 1977 "wow" signal Anatomy of a "WOW" signal. Vertical ordinate represents intensity; horizontal axis is frequency in intervals of 10 kilohertz. Time axis runs into the chart with 12-second intervals. Over the years, several large radio astronomy antennas have listened for "intelligent" radio signals from outer space. The acronym SETI is customarily applied to such searches; SETI standing for Search for Extraterrestrial Intelligence. There have been a few exciting false alarms during these listening periods, but most could be attributed to known natural radio sources or manmade interference. All in all, it has been rather disappointing to those who are sure someone else is out there. The major exception in the SETI record was the so-called "WOW" (like Egad!) signal picked up in 1977 by a radio telescope at Ohio State University, in Columbus. The bandwidth of the sig nal was narrower than those of most natural sources; there was also some evidence of periodic and drifting features. The signal never recurred, nor could it be correlated with any manmade or natural radio sources. (Eberhart, Jonathan; "Listening for ET," Science News, 135:296, 1989.) Comment. We can only speculate as to what alien intelligence might mean. Then, too, aliens have probably progressed far beyond primitive radio communication! From Science Frontiers #64, JUL-AUG 1989 . 1989-2000 ...
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... Science Frontiers ONLINE No. 43: Jan-Feb 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Life Seeks Out Energy Sources Wherever They May Be Life is opportunistic; it siphons off energy wherever it can find it. That life utilizes solar energy we all know. And, of course, humans have tapped the atom for energy. In just the past few years, remarkable colonies of life forms have been discovered congregated around deep-sea hydrothermal vents where sunlight is essentially nonexistent. Still more recently, similar life forms have been found clustered around oil seeps in the Gulf of Mexico. As at the hydro-thermal vents, the clams, worms, crabs, and other organisms depend mainly upon the ability of bacteria to chemosynthesize -- the primary energy source being hydrogen sulfide in the vented water. (Paull, C.K ., et al; "Stable Isotope Evidence for Chemosynthesis in an Abyssal Seep Community," Nature, 317:709, 1985; Also: Weisburd, S.; "Clams and Worms Fueled by Gas?" Science News, 128:231, 1985.) Comment. Since the earth's crust seems honeycombed with fissures and rivers of life-sustaining fluids, subterranean life may be as common as the abyssal chemosynthetic life at the vents and seeps. This versatility of life signals us that we should look for life wherever there is energy of any kind. From Science Frontiers #43, JAN-FEB 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bats may have invented flight twice (at least!)Bats are divided into megas and micros. The "megabats," represented by the fruit bats, possess an "advanced" connection between their eyes and midbrains. No other mammals except the primates possess this type of advanced visual organization. In contrast, the "microbats," the common echo-locating insect-eaters have a "primitive" eyebrain connection. This deep division in the bat family -- mega/micro, vegetarian/carnivorous, sight-dependent/echolocating -- suggests that mammal flight has developed at least twice. (Pettigrew, John D.; "Flying Primates? Megabats Have the Advanced Pathway from Eye to Midbrain," Science, 231: 1304, 1986.) Reference. The problems of bat evolution can be found at BME1 in our catalog Biological Anomalies: Mammals II. Ordering information here . From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Scant Ant Chromosomes The Australian ant Myrmecia pilosula, called the "bulldog ant" because of its viciousness, carries all its genetic information in a single pair of chromosomes. (Males are haploid and have just one chromosome.) Although classified as a "primitive" ant, the bulldog ant exhibits complex social behavior and is obviously far from a simple biological entity. Biologists were therefore surprised to find all genetic instruction residing in a single chromosome pair. Social insects tend to have higher chromosome numbers. It is also interesting that Myrmecia pilosula, originally described as a single species, actually consists of several distinct sibling species with chromosome numbers (i .e ., pairs) of 9, 10, 16, 24, 30, 3l, and 32. Yet, they all look pretty much alike. (Crosland, Michael W.J ., and Crozier, Ross H.; Myrmecia pilosula, an Ant with Only One Pair of Chromosomes," Science, 23l:1278, 1986.) Comment. Chromosome number or the sheer quantity of genetic material seems poorly correlated with biological complexity. From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Polar Bear Coats Are Thermal Diodes "A polar bear's hairs are completely transparent. The bear appears white because visible light reflects from the rough inner surface of each hollow hair. However, the hairs are designed to trap ultraviolet light. Like light within an optical fiber, the radiation is conducted along the hairs to the skin. This summertime energy supplement provides up to a quarter of the bear's needs. Thus, even while actively pursuing prey, the bear can still concentrate on building up its blubber layers in preparation for winter." In other words, the bear's fur lets heat in but not out -- in effect a thermal diode. (Anonymous; "Solar Bear Technology," Science News, 129:153, 1986.) Comment. How come polar bears are favored with this "marvelous adaptation" while the arctic foxes and other mammals shiver? From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Wrong-way primate migration Scientists have long assumed that the primates originated in Africa, spread to Europe, and then jumped to North America. This hypothesis may be over turned by the discovery of fossils of early primates in Wyoming. The revised route would be Africa-Asia-North America, the reverse of the prevailing theory. This item also remarks that "Remains of early 'true' primates have not been uncovered in Africa." The reason is that the deposits that should contain them have all been eroded away. (Bower, B.; "Wyoming Fossils Shake Up Views of Early Primate Migration," Science News, 129:71, 1986.) Comment. One wonders about the "missing" African strata and fossils. Perhaps they never existed. Here is an in-stance where theory requires certain data, as with evolution's missing links. Sometimes "missing" data is really missing! From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When Antarctica Was Green Something is wrong with our recent history of Antarctica. Conventional wisdom insists that the continent has been ice-covered for over 15 million years. But now Peter Webb and his coworkers have found pollen and the remains of roots and stems of plants in an area stretching some 1300 kilometers along the Transantarctic Mountains. The Antarctic wood is so recent that it floats and burns with ease. Webb's group postulates that a shrub-like forest grew in Antarctica as recently as 3 million years ago. The dating, of course, is critical, and is certain to be subjected to careful scientific scrutiny. Nevertheless, these deposits of fresh-looking wood do suggest that trees recently grew only 400 miles from the South Pole. Also of interest is the fact that the sedimentary layers containing the wood have been displaced as much as 3000 meters by faults, indicating recent large-scale geological changes. (Weisburd, S.; "A Forest Grows in Antarctica," Science News, 129:148, 1986.) From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Long Reach Of The Hawaiian Islands From aircraft and satellites, one can see strong contrasts in the roughness of the ocean surface in the lee of those idyllic islands with their volcanic peaks that poke over 10,000 feet into the Pacific airstreams. These long streaks on the ocean surface are called "wind wakes." The wind wake leeward the Hawaii is spectacular. These islands are swept by steady northeast trade winds. Mauna Kea (4201 meters), Mauna Loa (4201 meters), and other Hawaiian peaks penetrate high above trade inversion. Together they create a visible wind wake some 3,000 kilometers long to the west -- many time-greater than any other island wind wakes to be seen on the planet. The effects of these soaring peaks are more than visual. Their wind wake drives an eastward ocean current that, in turn, draws warm water away from the Asian coast 8,000 kilometers distant from Hawaii. Thus, a few island mountains affect the climate of a continent a fifth of the way around the globe! (Xie, Shang-Ping, et al; "Far-Reaching Effects of the Hawaiian Islands on the Pacific Ocean-Atmosphere System," Science, 292:2057, 2001.) Comment. The Hawaiian wind wake is not anomalous but it is surely interesting. From Science Frontiers #137, SEP-OCT 2001 . 2001 William R. Corliss Other Sites of ...
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... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Phantom Bodies The phantom-limb phenomenon is well-known but poorly understood. A person who has lost a limb, or born without one, experiences pain, touch, heat, and many of the other normal sensations in the absent appendage. How can this be? Neuroscientist P. Brugger, at the University of Zurich, asserts the following: The brain contains a representation of the body, and disturbances in relevant neural networks by brain tumors or epilepsy can create the apparitions. Brugger means that the brain seems to have a neurological map of the entire body, even if a person is born without a leg or loses same in an accident. The phantom-limb phenomenon is thereby expanded to a "phantom-body" phenomenon. Continuing in this vein, tumors or those "neurological disturbances" could also produce the sensation of an entire phantom body. Could such whole-body apparitions be the source of the doppelgangers (images of one's self) that have been reported in the parapsychological literature and in folklore? (Holden, Constance, ed.; "Doppelgangers," Science, 291:429, 2001.) From Science Frontiers #137, SEP-OCT 2001 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ozone Hole Over Antarctica Reviewing ozone-mapping data from the polar-orbiting Nimbus-7 satellite, R. Stolarski and colleagues at NASA's Goddard Space Flight Center have seen the concentration of ozone over Antarctica drop dramatically -- some 40% -- every October. This disappearing act commences about a month after the sun begins to graze the northern horizon and affects the entire continent. By early November, the sun is high enough to manufacture enough ozone via its ultraviolet radiation to fill the ozone hole up again. An analogous hole does form over the North Pole in the northern spring. An additional fact of interest: the hole is getting deeper each year; that is, the ozone concentration is less and less each October. Speculations about the deepening seasonal hole involve the widespread use of chlorofluorocarbons and Antarctica's physical isolation from other land masses which would help channel ozone southward from areas where the sun still shines. (Weisburd, S.; "Ozone Hole at Southern Pole," Science News, 129:133, 1986.) From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Brain architecture: beyond genes "The human brain probably contains more than 1014 synapses, and there are simply not enough genes to account for this complexity." .. .. "Neuroscientists at a recent meeting highlighted how extragenetic factors -- including neuronal activity, contact with other cells, radiation, and chemical factors -- influence brain circuitry, especially during development." In computer terms, our brains are constantly reprogramming themselves in response to internal and external forces. (Barnes, Deborah M.; "Brain Architecture: Beyond Genes," Science, 233: 155, 1986.) Comment. Musing in a Lamarckian way, can the brain, as reprogrammed by external influences, ever feed back information to the genes? From Science Frontiers #47, SEP-OCT 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 48: Nov-Dec 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Cosmic Chemistry Of Life C. Ponnamperuma, at the University of Maryland, speculates that the genetic code employed by earth life may, in fact, reflect a universal chemistry. His lab data "suggest that the formation and linking of life's building blocks -- amino acids and nucleotides -- may have been all but inevitable, given the starting chemistry of earth's 'primordial soup.'" Going even further Ponnamperuma believes that "if there is life elsewhere in the universe, chemically speaking it would be very similar to what we have on earth." (Raloff, J.; "Is There a Cosmic Chemistry of Life?" Science News, 130:182, 1986.) From Science Frontiers #48, NOV-DEC 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 138: NOV-DEC 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Dynamics Of Oleaginated Carbohydrate Parallelopipeds Science can be very helpful in clarifying the many puzzles encountered in everyday life. This willingness to study mundane phenomena is seen in a recent analysis of tumbling, buttered toast. We quote from the abstract of the highly technical American Journal of Physics. In the study reported here it is found that the experimentally determined free fall angular velocity of a board, tumbling off the edge of a table, can only be predicted at all accurately if slipping is taken into account. The size and shape of the board used in the calculations and in the experiments were roughly the same as that of a piece of toast. In addition, it is found that the board, tumbling from a standard table of height 76 cm, will land butter-side down (neglecting any bounce) for two ranges of overhang ( o). o is defined as the initial distance from the table edge to a vertical line drawn through the center of mass when the board is horizontal. For our board (length 10.2 cm) the approximate ranges of overhang are 0-0 .8 and 2.7 -5 .1 cm. The importance of the 0-0 .8 cm (only 2% of all possible overhangs for which tumbling is possible) favoring a butter-side down landing should not be overestimated when pondering the widely held belief that toast, tumbling from a table, usually falls ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Radar glories on jupiter's moons "Three ice-covered moons of Jupiter, in comparison with rocky planets and the Earth's moon, produce radar echoes of astounding strengths and bizarre polarizations. Scattering from buried craters can explain these and other anomalous properties of the echoes. The role of such craters is analogous to that of the water droplets that create the apparition known as 'the glory,' the optically bright region surrounding an observer's shadow on a cloud." Eshleman, Von R.; "Radar Glory from Buried Craters on Icy Moons," Science, 234:587, 1986.) From Science Frontiers #49, JAN-FEB 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Enormous Stellar Shell Raises Theoretical Questions "Stars tend to lose material to the space that surrounds them. Some of this loss is gradual and continuous -- the so-called stellar winds. Some is abrupt -- the sudden blowing off of a surface layer that then forms a shell around the star. A group of astronomers now reports in the Nov. 15 Astrophysical Journal the discovery of an especially large, cool shell around the star R Coronae Borealis. How this shell was formed and what makes it glow are both mysteries for which current theory does not seem to have answers." The newly discovered shell is 26 light-years across, roughly 20 times larger than previously discovered shells. If our sun were in the center, the shell would encompass the nearest 50 stars! The usual stellar shells glow as they absorb and reemit radiation from their parent stars, but the R Coronae Borealis shell, given its distance from its star, cannot be explained in this way. (Thomsen, D.E .; "Enormous Stellar Shell Raises Theoretical Questions," Science News, 130:333, 1986.) From Science Frontiers #49, JAN-FEB 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 86: Mar-Apr 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cloud Plumes Natural But Still A Bit Anomalous During the mid-1980s, satellites photographed strange cloud plumes that stretched hundreds of kilometers downwind of some nothern islands, especially Bennett Island, in the Soviet Arctic. Some wondered if perhaps the Soviets were conducting tests of some new type of weapon in these remote locations. With the end of the Cold War, flights of instrumented aircraft over the islands were permitted. Data from these flights support the idea that the mystery cloud plumes are formed by air currents passing over the islands. In other words, they are only orographic or mountaincaused clouds, like those sometimes seen over the Rockies. But puzzles persist: Why are the plumes so long? Why do they form at such high altitudes -- more than 3 kilometers above the tops of the relatively small mountains on the islands? (Monastersky, R.; "Mountains Give Rise to Perplexing Plumes," Science News, 141:422, 1992. Also: Fett, Robert W.; "Major Cloud Plumes in the Arctic and Their Relation to Fronts and Ice Movements," Monthly Weather Review , 120: 925, 1992.) From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Personality And Immunity The following abstract appeared in the American Journal of Psychiatry: "Natural killer (NK) cells are important in immune function and appear, in part, to be regulated by the CNS (central nervous system). The authors compared NK cell activity and MMPI scores of 111 healthy college students and found weak but statistically significant correlations between NK values and psychopathology for 10 of 12 scales. Students with the highest NK values had a 'healthier' MMPI profile than those with the lowest. Students with high MMPI scores (T greater than 70) had NK values below the sample median. These findings support theories of interaction between mental state and immune status, but the mechanisms and direction of interaction remain largely unexplored." (Heisel, J. Stephen, et al; "Natural Killer Cell Activity and MMPI Scores of a Cohort of College Students," American Journal of Psychiatry, 143:1382, 1986. Also: Bower, B.; "Personality Linked to Immunity," Science News, 130:310, 1986) From Science Frontiers #49, JAN-FEB 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 71: Sep-Oct 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Florida's circular canals Circular canals up to 1,450 feet in diameter and 6 feet deep have been discovered in south central Florida. Dug in the savannas and flood plains around Lake Okeechobee, the man-made circles include gaps where drainage canals extend outwards. Forty of these circular earthworks have been located by R.S . Carr. Some are as old as 450 BC; others as recent as the 16th. century. Mounds and large plazas are also part of this impressive example of Precolumbian engineering. Carr supposes that the circular canals were fish traps, but no fish bones or other supporting evidence for this theory have appeared. Another thought is that the earthworks drained agricultural land, but no maize pollen has been found. Could they have been ceremonial sites. No one really knows. (Bower, B.; "Florida 'Circles' May Be Ancient Fisheries," Science News, 138: 6, 1990.) Reference. Other ancient Florida canals are described in our handbook Ancient Man. Ordering details here . From Science Frontiers #71, SEP-OCT 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Strange Patterns In Another Oceanic Habitat The sea-floor vents and their unique assemblages of animals are just beginning to be explored. "Perhaps the most intriguing biological mystery in the vent area, however, was the finding of thousands of highly symmetric, Chinese-checkerboard-like patterns on the seafloor, which were first photographed several years ago. [P .] Rona thinks the patterns may be either an animal itself or the burrows made by an animal. He says the patterns are 'dead ringers for a 70million-year-old...trace fossil that is exposed in the Alps." (Weisburd, Stefi; "Hydrothermal Discoveries from the Deep," Science News, 130:389, 1986.) Thousands of such checkerboard patterns have been spotted on the seafloors. From Science Frontiers #50, MAR-APR 1987 . 1987-2000 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 Tilted Planetary Magnetic Fields The axis of the earth's magnetic field is tilted about 11 away from our planet's axis of rotation. This tilt is embarrassing to the reigning "dynamo theory," in which the axes of the magnetic field and rotation are presumed to be aligned. The situation is even worse with some the other planets; viz., Uranus with 60 and Neptune with 47 . Jupiter's tilt is 10 , while Saturn's is only 1 . Clearly, something is awry. Two possibilities are: (1 ) The dynamo theory is incorrect; or (2 ) The magnetic fields measured by spacecraft are actually combinations of central, dynamocreated, dipole fields, which are aligned with the axes of rotation, and "other" dipole fields originating in the outermost portions of the planetary cores. If the latter solution to the dilemma is correct, we must account for the origin and disposition of these "other" dipoles. (Eberhart, J.; "Straightening the Magnetic Tilts of Planets," Science News, 137:294, 1990.) Reference. The anomalously titled magnetic fields of planets are cataloged in The Moon and the Planets. For details on this book, visit: here . From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects On The Trail Of The Fifth Force Well publicized lately has been the modern reanalysis of the old Eotvos balance experiments. Some think they show the presence of that famous "fifth force" which is supposed, according to some theories, to modify Newton's Law of Gravitation, and become measurable at distances of about 100 to 1000 meters. The Eotvos results may also be explicable in terms of laboratory air currents. But the fifth force may be showing up in geophysical experiments. "One of the most comprehensive geophysical experiments so far has been conducted by Frank Stacey at University of Queensland in Brisbane, Australia, and his colleagues. Working in two metal mines, the researchers have measured a gravitational constant that is 0.7 percent greater than that measured in the laboratory -- suggesting the presence of a fifth force." (Weisburd, Stefi; "Geophysics on the Fifth Force's Trail," Science News, 131: 6, 1987.) From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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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 Growth Spurts In Children Daily length measurements (in centimeters) versus age (in years) for a male infant showing growth spurts. Despite much anecdotal evidence and the convictions of many parents, biologists have not generally recognized the reality of short, sharp growth spurts on the order of 1 centimeter in a single 24hour period. Rather, the consensus has been that child growth was divided into three stages (infancy, childhood, adolescence), each characterized by different, but steady rates of growth. This conclusion was based upon annual and quarterly length measurements. However, when children are measured more often (weekly or daily), the growth curve is seen to be step-like rather than smooth, as in the accompanying illustration. Indeed, the mean amplitude of the growth spurts was found to be about 1 centimeter; and the duration of the spurts, about one day. These spurts punctuated long intervals of no growth. In infants, for example, 90-95% of their development is growth-free! (Lampl, M., et al; "Saltation and Stasis: A Model of Human Growth," Science, 258:801, 1992.) From Science Frontiers #85, JAN-FEB 1993 . 1993-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Antarctic Ozone Hole Has Complex Structure "One more mystery has been added to the seasonal loss of ozone in the stratosphere over Antarctica. It now appears that the 'hole' is an uneven one, with 2- to 3-kilometer-thick slices of ozone-poor air sandwiched within layers of only minimal depletion." These new data came from McMurdo Sound, where a series of balloons carrying ozone sensors were released. Ozone depletion seems to be confined to the region 12-20 kilometers altitude and the top of the stratosphere. The overall depletion in this region was 35% at the time the balloons were lofted. However, some zones from 1 to 5 kilometers thick showed depletions as great as 90%. The reason for this stratificaiton is not yet known. (Silberner, J.; "Layers of Complexity in Ozone Hole," Science News, 131:164, 1987.) From Science Frontiers #51, MAY-JUN 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remarkable Photograph Of The Marfa Light The century-old fame of the Marfa, Texas, nocturnal light was greatly enhanced some months ago, when it was written up in the Wall Street Journal, of all places! We now have at hand a time-exposure photograph showing the typical erratic motion and flickering nature of this "spook" light. The photo was taken by James Crocker in September 1986. The location was 10 miles deep in Mitchell Flats, southbound from Highway 90. A single-lens reflex camera mounted on a tripod was used. Exposure was less than 3 minutes, at f/1 .8 , 50 mm lens, EL 400 color film. Three additional observers were present. It is interesting that the light's motion resembles that of some observations and photos of ball lightning. The lights in the upper right, just above the right loop of the Marfa light, are thought to be car lights on Route 67, about 10 miles distant. Unfortnately, the photo is too difficult to reproduce here. See our book: Science Frontiers: Some Anomalies and Curiosities of Nature for a good reproduction. Ordering information here . Time-exposure photograph of the famed Marfa Light in Texas. See text for details (c ) James Crocker. From Science Frontiers #51, MAY-JUN 1987 . 1987-2000 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 A Permian Polar Forest "An in situ Upper Permian fossil forest in the central Transantarctic Mountains near the Beardmore Glacier includes 15 permineralized trunks in growth position; the paleolatitude of the site was approximately 80 to 85 south. Numerous leaves of the seed fern Glossopteris are present in the shale in which the trunks are rooted. The trunks are perminealized and tree rings reveal that the forest was a rapidly growing and young forest, persisting in an equable, strongly seasonal climate -- a scenario that does not fit with some climate reconstructions for this time period." Some models of the Permian climate, based on astronomical and meteorological parameters, have winter temperatures at the site averaging -30 to -40 C, with the average summer temperature at merely 0 C. This fossil forest is clearly at odds with these models. (Taylor, Edith L., et al; "The Present Is Not the Key to the Past: A Polar Forest from the Permian of Antarctica," Science, 257:1675, 1992.) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 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 Microscopic Life On Mars?The worm-like structures present in that (supposed) Martian meteorite ALH 84001 superficially resemble miniature bacteria. On this basis NASA loudly proclaimed that they might be the fossils of primitive Martian life forms. (SF#108, #110) Some scientists were suspicious of this claim. J.P . Bradley et al, in a recent letter to Nature, declared the putative fossils to be only the fractured surfaces of lifeless crystals. Responding, K. Thomas-Keprta insisted that her group was not so stupid that it would mistake crystals for fossils! Her group, too, had noticed the crystals. The claimed fossils are much larger and more numerous than the crystals. To settle the matter, Thomas-Keprta and associates plan to dissect the suspect structures. Stay tuned to this newsletter! (Bradley, J.P ., et al; "No Nanofossils in Martian Meteorite," Nature, 390:454, 1997. Also: Kerr, Richard A.; "Putative Martian Microbes Called Microscopy Artifacts," Science, 278:1706, 1997.) From Science Frontiers #116, MAR-APR 1998 . 1998-2000 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 Earthquake Weather Folklore reserves the term "earthquake weather" for the sultry, ominously uneasy period said to precede large earthquakes. Scientists have generally belittled suggestions that weather could have anything to do with the ponderous forces unleashed during a quake. Despite such authoritative pronouncements, many Californians, who have ample experience with seismic events, insist that quakes and weather are somehow connected. They may be right -- at least some of the time. In the five years following the 7.3 Landers earthquake of June 28, 1992, the frequency of smaller quakes has peaked reliably every September. However, before the Landers event, no such pattern is evident. One thought is that the average atmospheric pressure, which is lower in the summer months, reduces the downward pressure on the earth's crust enough to allow easier slippage along fault lines. This sounds reasonable, but why did this effect not occur before the Landers quake? The answer given is that perhaps the Landers event "sensitized" nearby faults! (Monastersky, R.; "California Shakes Most Often in September," Science News, 152:373, 1997.) Since the Landers event, Earthquakes in the weestern U.S . have been following an annual cycle. From Science Frontiers #116, MAR-APR 1998 . 1998-2000 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 A NEW QUASAR DISTANCE RECORD: A NEW EMBARRASSMENT A quasar has been detected with a redshift of 4.73. If this redshift is interpreted as a measure of the quasar's distance (Who would risk his reputation by suggesting otherwise?), it is 14 or billion light years away. If the Big Bang is assumed (Who would risk..etc?), this quasar is only about a billion light years from the edge of the universe. Its age, then, is only a billion years. But this stripling of a quasar appears perfectly "normal" with no signs of youth! Its spectrum indicates that even at this young age, the elements were present in the same abundances found in older quasars. And, of course, at this quasar's core there must be a billion-solar-mass black hole (Who would risk..etc.?). Current theory is hardpressed to explain this very rapid evolution of a "normal" quasar with its immense black hole. (Peterson, I.; "Quasar Illuminates the Most Distant Past," Science News, 136: 340, 1989.) Comment. Could it be that our fanatically held ideas about redshifts, black holes, and Big Bangs are wrong? You bet it could! Reference. The redshift controversy the the anomalies that create it are cataloged in: Stars, Galaxies, Cosmos. Ordering information here ...
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... Science Frontiers ONLINE No. 83: Sep-Oct 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Crop-circle contest July 11-12, 1992. Buckinghamshire, England . On this dark night, in a barley field, 12 teams assembled in hopes of winning a $5 ,200 prize provided by the Koestler Foundation and the German Magazine PM. This sum was to be awarded to the best crop-circle hoaxers. First prize went to three engineers from a British helicopter company, who used rope, plastic piping, and a ladder suspended from a trestle. Close behind in the competition was American J. Schnabel, who, working all alone, required only a plank, some rope, and a small garden roller to produce a creditable, rather elaborate design. (Anonymous; "Circle Hoax Contest," Science, 257:481, 1992.) Comment. The quality of the best entries assures us that hoaxing is not to be discounted as a major factor in cropcircle studies. From Science Frontiers #83, SEP-OCT 1992 . 1992-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 5: November 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Asteroids with moons?Several recent observations made of asteroids as they occult stars suggest that some asteroids are circled by moonlets. The observational technique used resembles that employed in the discovery of the now-famous rings of Uranus. Briefly, the star being observed blinks out not once in a clean-cut fashion but in a complex scenario that may indicate the presence of a second body. To illustrate, during the 1975 occultation of a star by the asteroid Eros "all sorts of people saw things," meaning secondary events or extra dimmings. Another kind of supporting evidence comes from the light curve of 44 Nysa, which closely resembles that of an eclipsing binary star. (Anonymous; "Asteroids with Moons?" Science News, 114:36, 1978.) From Science Frontiers #5 , November 1978 . 1978-2000 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 Direct observations of hyperion's chaotic motion Hyperion is a 150-kilometer-diameter satellite of Saturn. Hyperion's irregular shape and the gravitational pull of Titan, a larger satellite of Saturn, make it a prime candidate for chaotic motion. After accumulating 53 Hyperion-days of observation, J. Klavetter has confirmed this theoretical suspicion. Hyperion's brightness varies wildly from day to day, as it spins unpredictably. The laws of motion and the largest computers are helpless here; although computer simulation can identify situations where chaos might develop. More alarmingly, some "subtle" chaos also appears in computer simulations of Pluto's motion and "perhaps other planets." (Kerr, Richard A.; "First Direct View of Solar System Chaos," Science, 246: 998, 1989.) Comment. Contemplate what might happen -- or might have happened already -- if any of the other planets moved chaotically. From Science Frontiers #67, JAN-FEB 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 5: November 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fish Creates Fish A Philippine anglerfish, looking for all the world like a rock or shell, waves before its maw a piece of bait resembling small fish found in this region. The bait, which is part of the anglerfish's body, has fins, a tail, and black spots for eyes. The waving about of the bait attracts predatory fish close enough for the anglerfish to snap them up. The authors surmise that the anglerfish evolved this realistic bait (and rod and reel) in order to save energy in acquiring food. (Pietsch, Theodore W., and Grobecker, David B.; "The Complete Angler: Aggressive Mimicry in an Antennariid Anglerfish," Science, 201:369, 1978.) Comment. One wonders how many unfishlike baits were evolved before just the right shape and coloration were achieved. From Science Frontiers #5 , November 1978 . 1978-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 53: Sep-Oct 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Has the second law been repealed?" From the largest to the smallest scales, the universe is evolving. Matter, in the form of galaxies, is undergoing a colossal expansion. Gas, condensed into stars, is radiating thermonuclear energy out across an infall of matter, drawn by gravity. The simplest of chemical reactions and the most complex of biological activities are occurring on the surface of the earth in a state far from equilibrium; they are heated by the sun and cooled by the vacuum of space. This pervasive cosmic imbalance is the driving force in producing an environment conducive to the formation of structure and complexity." This sweeping statement seems to apply to the entire universe. The Second Law of Thermodynamics, however, insists that, on the average, for the entire universe, the above paragraph cannot be true. The article introduced by this unqualified assertion about the evolution of the universe is really about self-organizing chemical reactions. We classify it under biology because the authors imply that some biological phenomena are self-organizing. The famous Belousov-Zhabotinskii reaction is used as the prime example of chemical self-organization. First, one takes a shallow dish filled with a solution of bromate ions in a highly acidic medium. Here's what happens: "A dish, thinly spread with a lightly colored liquid, sits quietly for a moment after its preparation. The liquid is then suddenly swept by a spontaneous ...
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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 Brontides Become Respectable The mystery of natural detonations (Barisal Guns, mistpouffers, etc.) was probed by several scientific groups following the recent episodes of off-shore booms. This paper by Gold and Soter, from Cornell, would have warmed the heart of Charles Fort, for he made much of natural detonation: or "brontides," as they are termed in the early literature. Gold and Soter review the long history of brontides, noting that brontide activity is often associated with earthquakes, but not always. Natural booming noises, they contend, may be due to eruptions of natural gas. This would square with the rare observations of earthquake lights. Interestingly enough, the recent off-shore detonations were occasionally accompanied by luminous phenomena. (Gold, Thomas, and Soter, Steven; (Brontides: Natural Explosive Noises," Science, 204:371, 1979.) Reference. Brontides and other "water guns" are collected in GSD1 in Earthquakes, Tides, Unidentified Sounds. Details on the Catalog volume here . From Science Frontiers #8 , Fall 1979 . 1979-2000 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 Chicken-plucking by tornados In the early 1840s, Professor Loomis of Western Reserve College stuffed dead chickens into an eight pounder and fired the cannon vertically. Object: to see if high velocities would deplume the chickens. It seems that Loomis didn't know whether to believe all those stories about tornados tearing the feathers off chickens. Unfortunately, his experiments were inconclusive because the cannon disgorged clouds of feathers plus well-shredded chickens. He recommended that other scientists try lower muzzle velocities! Since those more innocent days, science has accumulated many eye-witness accounts of this incredible phenomenon, including actual photographs that do not appear to have been tampered with in the darkroom. There can no longer be any reasonable doubt, tornados do deplume chickens. (Galway, Joseph G., and Schaefer, Joseph T.; "Fowl Play," Weatherwise, 32:116, 1979.) From Science Frontiers #8 , Fall 1979 . 1979-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Checking Out Those Australian Pyramids Several Australian readers have been kind enough to send this item about the Australian pyramids reported in SF#41, especially the one at Gympie, Queensland. The article's author, T. Wheeler, personally checked out the Gympie pyramid, the other supposedly ancient artifacts found in the area, and the testimonies of authorities and old-timers in the Gympie area. His results: "What are we left with? The facts are (probably) that the Gympie 'Golden' pyramid is actually an ordinary hill terraced by early Italian immigrants for viniculture that has been disfigured by erosion and the removal of stone from the retaining walls for use elsewhere; the stone wall around Gympie's Surface Hill Uniting Church is exactly what the Rev Mr Geddes says it is -- a wall made from irregular, freshly quarried stone. The 'Gympie Ape/Iron Man' statue was carved by a Chinese gold prospector and later abandoned. The sun symbol and snakes were carved quite recently. The prickly pear was introduced to Australia by early settlers journeying via South America. As for all the supporting statements by the various authorities, all but a few unimportant ones fade away as one after another proves to be a misquote, a falsification or an outright fabrication." (Wheeler, Tony; "In Quest of Australia's Lost Pyramids," Omega Science Digest, p. 22, November/December ...
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... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Star Sludge All of a sudden it seem that astronomers are finding dark -- even "charcoal-black" -- materials in unlikely places in the solar system. Three "sludgy" sites have been high-lighted in the recent literature. (1 ) Comets. "Black" comets certainly defy our expectations. Are all those pictures of white, flaming apparitions wrong? Not really. The comets approaching the sun are made visible by sunlight reflected from the gases and dust in the coma and tail, plus some direct emission. However, the heart of the comet, its nucleus, has long been considered a "dirty snowball"; that is, a mixture of dirt and ices. Now it appears that comets are more like "icy dirtballs"! And some of that dirt is pitch black. New measurments of the bare nuclei of comets, using a visual-infrared technique, find that the nuclei reflect as little as 2% of the incident sunlight. They are indeed charcoal black. Comet nuclei, according to W. Hartmann and his colleagues, are colored by a brownishblack primordial organic sludge, and have the appearance of "a very dark Hershey bar." The use of the adjective "organic" may be premature, but in light of the next item, maybe not. (2 ) Carbonaceous chondrites . This well-known class of meteorites sometimes appears tarry and is characterized by carbon contents ...
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... Science Frontiers ONLINE No. 87: May-Jun 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The vent glow and "blind" shrimp In 1988, when the research submersible Alvin was exploring those remarkable hydrothermal vents or "black smokers." Its CCD (Charge-Coupled Device) camera detected a ghostly glow emanating from the vents. Since this mineral-laden water gushing from these cracks in the deep-sea floor exits at 350 -400 C, the simplest explanation of the vent glow is that is is simply thermal radiation from the hot fluid. Indeed, color filters on the camera recorded a spectrum close to that of a 350 C plume. But the deep-sea shrimp camped around the vents have raised second thoughts. The shrimp, only a few inches long, live in the perpetual darkness of the miles-deep vents. They do not need and do not have ordinary eyes. Rather, they sport a mysterious organ on their backs that is connected to their brains by a nerve-fiber bundle much like an optic nerve. This organ is packed with the same light-sensitive pigments found in the eyes of surface creatures. Despite its unusual location on the shrimp, it is an "eye" of sorts. But of what use is it in the Stygian abysses? To find, perhaps, vent glows that betray the presence of chemosynthetic food sources. If this is so, the shrimps' optical organ, which is most sensitive in the blue-green portion of the spectrum, is ...
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... 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 Circles Of Contention No, this is not about crop circles, although these are easily as controversial -- at least among anthropologists. The story broke last September (1996), in Sydney, Australia, and has been simmering ever since. We have let the story cook for a while, hoping to get some confirmation of the dates involved. This will have to come later. These "circles of contention" are engraved on tall boulders (about 2 meters high on average) arranged in arcs hundreds of meters long at a site the aborigines call Jinmium. Jinmium is located near the western boundary of Australia's Northern Territory. The circles are obviously the work of humans. There are thousands of these etchings all told. Dimensions: 2-3 centimeters across and about half as deep. No one doubts that the Jinmium site is ancient. Judging from the sediments that cover the lowest circles, these engravings are about 60,000 years old. If this date survives scrutiny, the Jinmium carvings will be the oldest human art on the planet -- twice as old as anything found in Europe. No wonder the circles have created a stir. Actually, though, a larger issue is at stake. In the sediments around the engraved boulders, anthropologists have discovered what seem to be even-more-ancient signs of human activity: stone tools stratigraphically dated at 116,000 and 176,000 years. The ...
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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 "NOT WITH A BANG BUT A WHIMPER"Poet T.S . Eliot speculated that life on earth might not after all be terminated catastrophically, as in the impact of a large asteroid (today's popular doomsday machine). Rather, we might depart slowly, quietly, and mournfully. Of course, Eliot was not thinking of asteroids -- no one foresaw impact havoc in his day. But, his use of the word "whimper" can be attached to another, much slower astronomical agent of planetary death: cosmic dust and gas. Here's the current situation: "For the most part of the past five million years, the Solar System has been moving through a rather empty region of interstellar space between the spiral arms of the Milky Way. But a few thousand years ago, it entered a diffuse shell of material expanding outward from an active star-forming region called the Scorpius-Centaurus Association. Such 'super-bubble' shells of gas and dust result from the formation of massive stars, or the explosion of those stars as they become supernovas, and contain gas and dust clouds of varying densities." The density of matter in this solarsystem-engulfing shell could well shroud our planetary system with dust and gas a million times more dense than that we now encounter. If this happens, the sun's rays would slowly dim and life forms dependent on photosynthesis would expire. ...
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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 It "IT would mean abandoning a great deal of present research." (M . Disney, galaxy specialist, University of Wales) "I 'm not being dogmatic and saying IT cannot happen, but if it does, it's a real shocker." (J . Peebles, cosmologist, Princeton University)" Emphasis added above and for good reason. Yes, IT is resurgent again and after a remission of only a single issue. We are referring to those pesky quantized redshifts that won't go away. Now, a new study of them, by B. Napier and B. Guthrie, has appeared in Astronomy and Astrophysics . These astronomers had collected the redshifts for 97 spiral galaxies, measured and remeasured by various observatories, and had found in them a strong quantization in the power spectrum. (See figure.) So unbelievable was this phenomenon that, when they first submitted their paper to Astronomy and Astrophysics , a referee asked them to repeat their analysis with another set of galaxies. This, Napier and Guthrie did with 117 other galaxies. The same 37.5 -kilometers/second figure thrust itself out of the data; and their paper was accepted. It seems. therefore, that a lot of galaxies, maybe all of them, are receding from our telescopes at velocities separated by 37.5 kilometers/second, rather than in a continuous range of velocities. Unless Napier ...
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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 Splitting The Electron's Charge We all know that the atom can be split, but the electron's charge? No way! R.A . Millikan's oil-drop experiments, circa 1911, demonstrated conclusively that the basic, indivisible unit of electrical charge was that on the electron. Later, an exception was made for those quarks that are firmly locked up inside nuclear particles. They each have 1/3 the electron's charge -- but they never, never escape to the outside world. It was, therefore, counterintuitive when R. Laughlin proposed in 1982 that fractional electrical charges actually could show up elsewhere in physics. The phenomenon that suggests this possibility is the Fractional Quantum Hall (FQH) effect. Physicists reluctantly accepted the likelihood of fractional charges in this well-verified phenomenon; but the experiments demonstrating fractional charge were a bit esoteric -- the fractional charges were not "palpable" enough. Two new experiments have made fractional charges much more tangible. When a layer of electrons, held just above absolute zero, is subjected to a powerful magnetic field, you can almost "hear" the fractional charges. The signals from these experiments have been likened to hail hitting a tin roof. Just as you can gauge the size of hailstones from their impact, so you can estimate the electrical charges involved in these experiments -- they are 1/3 that of the electron. ( ...
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... Science Frontiers ONLINE No. 100: Jul-Aug 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A POT POURRI OF MARTIAN CUSIOSITIES (AND WE DON'T MEAN "FACES" AND "PYRAMIDS")A shadow and grid-like pattern. ". .. the recent Phobos probe that the Russians sent to Mars in 1988 -- which met a mysterious and untimely demise -- recorded two quite mysterious Anomalies on the planet before contact was lost with the satellite. One was a strange shadow moving across the planet's surface (not a shadow of either of Mars' moons)! The other anomaly was a strange grid-like pattern at one location on the Martian surface; it was photographed with an infrared camera on Phobos 2, the first such instrument carried on a spacecraft sent to Mars." (Ref. 1) The canals are still there -- in a shadowy way ! Commenting upon the theory that those Martian canals that keep showing up on plates made through terrestrial telescopes are only picture/film defects, D. Louderback points out that the: ". .. canals are also showing up on CCD [Charge-Coupled Device] camera photos like the one taken by Donald Parker with a 12.5 -inch reflector and shown on the cover of the Strolling Astronomer earlier this year. It clearly showed a pentagonal pattern of canals surrounding Elysium. It is almost certain that these were not a 'picture defect'!" (Ref. 1) Searching for explanations, J ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Quantized Galaxy Redshifts "The history of science relates many examples where the conventional view ultimately was proved wrong." Tifft and Cocke begin their article with this sentence. Wisely, they followed with the tale of how vehemently the quantization of the atom was resisted earlier in this century. They were wise because without such a reminder to be open-minded, many astronomers would automatically toss their article in the wastebasket! In fact, when Tifft's first paper on redshift quantization appeared in the Astrophysical Journal, the Editor felt constrained to add a note to the effect that the referees: "Neither could find obvious errors with the analysis nor felt that they could enthusiastically endorse publication." Even today, after much more evidence for redshift quantization has accumulated, scientific resistance to the idea is extreme. We shall now see what all this fuss is about. Tifft first became suspicious that the redshifts of galaxies might be quantized; that is, take on discrete values; when he found that galaxies in the same clusters possessed redshifts that were related to the shapes of the galaxies. The obvious inference was that the redshifts were at least partly dependent upon the galaxy itself rather than entirely upon the galaxy's speed of recession (or distance) from the earth. Then, he found more suggestions of quantization. The redshifts of pairs of galaxies differed by quantized amounts (see figure). More evidence exists for galactic quantization, but ...
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... Science Frontiers ONLINE No. 10: Spring 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Double hubble: age in trouble A key concept in modern astronomy -- the distance scale -- has been challenged by a new measurement technique. In recent years, the so-called Hubble Constant has been used to determine the distances of the farthest observable galaxies and, by assuming that they are near the periphery of the expanding universe, obtaining the age of the cosmos by dividing distance by the speed of light. Until this current challenge, the age of the universe was generally taken as about 20 billion years. The "old" Hubble Constant, however, was determined from the measurements of the distances to rather close galaxies and then assuming that the Constant thus derived held for the entire universe. The new yardstick reaches farther out into space. It is based upon the observation that the broadening of galaxy's 21-centimeter radio emission depends upon its rate of rotation, plus the belief that the rate of rotation is proportional to its brightness! This "new" Hubble Constant is 95 kilometers/second/ megaparsec, which translates into an age of only 10 billion years for the universe. Both the 10-billion-year and 20billion-year camps claim strong supporting evidence for themselves and also point to serious difficulties in the opposing method. The stage is thus set for a delightful controversy. (Hartline, Beverly Karplus; "Double Hubble: Age in Trouble," Science, 207: 167, 1979.) ...
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... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Snowflake Anomalies Rarely is there anything in the scientific literature suggesting that anything about snowflakes could possibly be mysterious. Surprisingly, two articles on snowflake anomalies have appeared recently. To form at all above -40 F, snowflakes supposedly require a solid seed or nucleus around which ice can crystallize -- or so scientists have assumed for many years. It was long believed that airborne dust, perhaps augmented by extraterrestrial micrometeoroids, served as the necessary nuclei. But cloud studies prove that there are about a thousand times more ice crystals than dust nuclei. Now, some are convinced that bacteria blown off plants and flung into the air by ocean waves are the true nuclei of atmospheric ice crystals. Remember this the next time you tast a handful of snow! (Carey, John; "Crystallizing the Truth," National Wildlife, 23:43, December/ January 1985.) Comment. The possibility that the fall of snow and all other forms of precipitation is largely dependent upon bacter-ia brings to mind the Gaia Hypothesis; that is, all life forms work in unison to further the goals of life. The second item is from Nature and is naturally more technical. After reviewing the great difficulties scientists are having in mathematically describing the growth of even the simplest crystal, the author homes in on one of the fascinating puzzles of snowflake growth: "The aggregation of particles into a growing surface will be determined exclusively by local ...
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... Science Frontiers ONLINE No. 122: Mar-Apr 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is a singularity worse than a spinning cosmos?Whence the untold billions of stars and galaxies that brighten our night skies? From a "singularity," that's where -- from an infinitely small point in space. The Big Bang hypothesis requires this abandonment of common sense. Both mathematicians and cosmologists instinctively hate singularities. The latter have been trying to exorcise theirs for years. Recently, S. Carneiro, a Brazilian physicist, proposed a way to get rid of this natal singularity but retain the expanding universe. First, he assumes that the universe has been around for an indefinitely (infinitely?) long time, thereby eliminating the problem of origin. Furthermore, this universe was rotating. About 11 billion years ago this spinning universe was transformed into the expanding universe we see today via that clever cosmologists' ploy called a "vacuum phase transition." Carneiro shows how the rotation of the universe-as-a -whole was converted into overall expansion in a paper submitted to the journal Classical and Quantum Gravity . But even if all of Carneiro's equations check out, angular momentum still had to be conserved somehow during the phase transition. Simple! The angular momentum of the universe-as-a -whole was transferred to the spins of all the individual planets, stars, and galaxies. In fact, the angular momentum of each astronomical entity, according to Carneiro, is proportional to its (mass ...
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... Science Frontiers ONLINE No. 124: Jul-Aug 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Late Survival Of The Kilopilopitsofy And Kidoky Cryptozoological articles are rare in the mainstream science literature, but a 1999 number of the American Anthropologist has surprised us with an investigation of two mystery mammals on Madagascar. In 1995, D.A . Burney and Ramilisonia interviewed elderly natives about their knowledge of the Kilopilopitsofy and Kidoky. Both of these animals are mentioned in the historical accounts and folklore of Madagascar between the mid-1600s and late 1800s. The testimonies collected by Burney and Ramilisonia enabled them to provide tentative indentifications of these two mystery animals, both of which may still survive today. The Kilopilopitsofy "A striking feature of the accounts of this mysterious animal is the consistency of the details. All the accounts we have collected stress that the animal is nocturnal, grunts noisily, and flees to water when disturbed. Likewise, there is general agreement that it is cow-sized, hornless, dark in color, and has a large mouth with big teeth." These data agree with the old descriptions of the mangarsahoc (1661), the tsy-aomby-aomby (1882), and the Ombyrano (1912). One animal fits all of these accounts: the dwarf hippopotamus ( Hippo potamus lemerlie , supposedly extinct for over 1,000 years. The Kidoky "This animal's description is decidedly lemur-like. It was compared to the sifaka by all the interviewees who described it, although all insisted that it ...
Terms matched: 1 - Score: 59 - 15 May 2017 - URL: /sf124/sf124p07.htm
