7 results found.
... Science Frontiers ONLINE No. 34: Jul-Aug 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Are parasites really the masters?All animals harbor parasites; and some parasites even have their own parasites. The usual effect of a parasite upon its host is debilitation, often to the point of death. But parasites have to reproduce, and some settle for the modification of their hosts in ways that improve their chances. Parasites can change the size, color, and even the behavior of their host. The object is usually to encourage a specific predator to eat the host so the parasite can continue its life cycle. A classic example is the lan-cet fluke which infests ants and then sheep. The problem is that sheep don't normally eat ants, giving the flukes a chance to switch vehicles. So, the innovative flukes somehow force the ants to crawl to the tops of plants and lock themselves there with their jaws. The next hungry sheep that comes along has his meal seasoned with ants. The bulk of the present article deals with thorny-headed worms, which are not as endearing as the lancet flukes. These parasites are merely bags of reproductive organs attached to a thorny probiscus, by which they attach themselves to the intestinal walls of vertebrates. Living in a sea of processed nutrients, the worms don't even have a digestive tract. Part of the life cycle of this parasite is spent in arthropods (insects, crustaceans). As with the lancet fluke, the thorny-headed worm ...
Terms matched: 1 - Score: 65 - 15 May 2017 - URL: /sf034/sf034p13.htm
... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ri Seen In June 1983, a three-man team travelled to New Ireland, off the coast of New Guinea, to track down the ri, an unrecognized aquatic mammal with some mermaid overtones. The natives of New Ire-land kill and eat the ri, which they insist is different from the dugong. The team was fortunate to observe a ri from as close as 50 feet as it hunted fish in Elizabeth Bay. The animals was 5-7 feet long, skinny and fast. No dorsal fin was seen, and the tail flukes were mammilian (i .e ., horizontal). The creature surfaced about every 10 minutes. Such behavior is quite unlike that of known cetaceans and sirenians. (Anonymous; "New Guinea Expedition Observes Ri," ISC Newsletter, 2:1 , Summer 1983.) (ISC is the International Society of Cryptozoology.) From Science Frontiers #31, JAN-FEB 1984 . 1984-2000 William R. Corliss ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf031/sf031p09.htm
... magnetic field reverses in step. Now, if scientists could show that all of these phenomena occur at the same frequency and are roughly in phase, it would constitute one of science's most important syntheses. The stratigraphic record and the estimated ages of meteor craters certainly hint at such synchrony. Recently, two more papers have appeared which support the above scenario. First, M.R . Rampino and R.B . Stothers show that during the past 250 million years, eleven episodes of basalt flooding have occurred with an average cycle time of 32 million years. Second, J. Negi maintains that the earth's magnetic record boasts a similar string of disturbances, with an average period of 33 million years. (Anonymous; "Regular Reversals in Earth's Magnetic Field A Fluke?" New Scientist, p. 32, August 25, 1988.) From Science Frontiers #60, NOV-DEC 1988 . 1988-2000 William R. Corliss ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf060/sf060p13.htm
... verge on the unbelievable. You can even construct large magic squares from smaller magic squares. Nevertheless, the fact that alphamagic squares exist in large numbers is unexpected. Alphamagic squares come in pairs. The first member of the pair consists of a magic square in which the numbers are spelled out letterwise, as in this example: five twenty-two eighteen twenty-eight fifteen two twelve eight twenty-five The numbers add up to 45 in all rows, columns, and diagonals. The square is "magic" in words. The second member of the pair is formed by counting the number of letters in each word of the first square, thus: 4 9 8 11 7 3 6 5 10 This square is also magic, adding up to 21 in all directions! Just a fluke, you say? Not so. You can even construct alphamagic squares in different languages. In his column in Scientific American, I. Stewart provides examples in French, German, Welsh, and even Swahili! In German, there are no less than 221 alphamagic squares using numbers under 100. (Stewart, Ian; "Alphamagic Squares," Scientific American, 276:106, January 1997.) Comment. The "deep meaning" of alphamagic squares is about the same as that associated with the existence of your Social Security Number in the decimal expansion of pi! From Science Frontiers #110, MAR-APR 1997 . 1997-2000 William R. Corliss ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf110/sf110p00.htm
... 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 ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf115/sf115p03.htm
... Guthrie and W.M . Napier, at the Royal Observatory at Edinburgh, undertook another study. They selected 89 nearby spiral galaxies that had not been incorporated in any of the previous surveys. These galaxies had very accurately measured redshifts and were distributed all over the celestial sphere. "As expected, the galaxies' redshifts showed a smooth distribution. Clearly, no quantization was being introduced by the radio telescopes or the data reduction process. But after Guthrie and Napier corrected each redshift to account for the Earth's motion around the center of the Milky Way -- a different correction for each location in the sky -- out popped a periodicity of 37 km/sec, close to one of Tifft's values. It was so strong that the chance of it being a statistical fluke was less than 1 in 3,000." Tifft's work therefore seems to have been verified again. But Tifft is now waxing even more iconoclastic, claiming that galactic redshifts have actually changed slightly in just a few years! (Anonymous; "Quantized Redshifts: What's Going on Here?" Sky and Telescope , 84:128, 1992.) Comment. A strange geometrical concordance exists between quantized redshifts and the shells of stars surrounding some elliptical galaxies. See AWO5 in our catalog: Stars, Galaxies, Cosmos . This volume also contains much more on quantized redshifts in AWF8. Ordering information here . From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf084/sf084a03.htm
... biggest reliable measurement.) The vessel is flooded, perhaps its back is broken. It sinks like a rock without even sending a distress signal. Another ship has been devoured by a rogue wave. Giant solitary waves are usually preceded by deep troughs. as seen in this sketch of a vessel in the notorious A gulhas Current off the coast of South Africa. (From: Earthquakes. Tides....) Just between 1969 and 1994. 60 supercarriers were lost due to sudden flooding. Of this number, 22 were apparently swallowed by rogue waves. The rogue waves appear unexpectedly. They dwarf all surrounding waves. For a long time, the rogues were said to be just chance additions of two smaller waves. But they are too big and occur too frequently to be statistical flukes. In addition, statiticians have trouble in accounting for the fabled and feared "three sisters" -- three massive waves in succession. Consequently, scientists have retreated to a now-familiar refuge: nonlinear effects. They show mathematically how small perturbations in a physical system can lead to huge consequences -- on paper at least.. (Lawton, Graham; "Monsters of the Deep," New Scientist, p. 28, June 30, 2001.) Comments. Somehow, as insinuated above, blaming monstrous waves on non-linear effects is not very satisfying in our cause-and-effect world. Twenty-two huge vessels swallowed up by giant waves! Yet, we never see notices of such events in the papers! A small tanker oil spill gets much ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf137/sf137p12.htm
