... are ritual pathways, meant to be walked upon and to lead processions to spots where prayers for more water would be most effective. The geoglyphs, however, remain mysterious. (McClintock, Jack; "The Nasca Lines Solution," Discover, 21:74, December 2000.) Comments. The Nazca lines have not been neglected in past newsletters. See SF#47 and SF#63. Ritual processions like those hypothesized for the Nazca Plain resemble thosethought to have taken place along Avebury's avenue, Carnac's stone rows, and Chaco Canyon's mysterious converging system of "roads." Ritual processions seem to be built into the human genome. From Science Frontiers #134, MAR-APR 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... easily. Unless, of course, the penguins are clever enough to flop over on their backs exposing only their white tummies. Since they perceive aircraft as threats, they topple backwards intentionally. Pretty smart of them! (Browyer, Adrian; "White Out," New Scientist, p. 54, December 16, 2000.) Comment. More seriously, an outstanding exception to the countershading rule is Africa's ratel or honey-badger. It is white on top, dark on its belly. But like its cousin, North America's wolverine, the ratel is so strong and fierce that even lions avoid it. It doesn't need camouflage. From Science Frontiers #134, MAR-APR 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... The polysaccharides and proteins that comprise most of the thin goo are not alive, although the bacteria are. Just how this thin goo and its multitudinous inhabitants evolved has not been explained. Which came first, the goo or the bacteria? Being devoid of life's spark, the goo cannot evolve, or can it? (LaFee, Scott; "Meet Me at the Goo," New Scientist, p. 44, November 25, 2000.) Comment. Do similar microcosms thrive in freshwater lakes, in aquifer pores, the atmosphere? Don't shrug, even the atmosphere has its microstructure and is laden with bacteria, spores, viruses, etc. From Science Frontiers #134, MAR-APR 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... .) Comment. We have passed lightly over a big subject. For more, visit: www.vonich.nu Or read: Brumbaugh, Robert S.; The Most Mysterious Manuscript, Carbondale, 1978. As for Roger Bacon, it has been claimed that he wrote some of Shakespeare's plays and, further, that these acknowledged works of genius even include an embedded cipher, which, like the Voynich Manuscript, has never been decoded. One of the astronomical diagrams in the Voynich Manuscript. The meaning of the star symbols in the eight (not the Zodiacal twelve!) sectors is obscure. The language used in the accompanying text is likewise mysterious. From Science Frontiers #135, MAY-JUN 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... magnetic fields. Because, as astrophysicist S.A . Colgate observes: These magnetic fields are the dominant free energy of the universe. If so much energy pervades intergalactic space, it is there that we may find of the source of those perplexing high-energy cosmic rays mentioned in the preceding item. (Musser, George; "Magnetic Anomalies," Scientific American, 283 :22 , August 2000.) Comment. Imagine that! Cosmic rays of incomprehensible energy emanating from a region where resides the dominant free energy of the universe. And yet, we see nothing there in our telescopes. Future science is going to be littered with the fragments of smashed paradigms. From Science Frontiers #135, MAY-JUN 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... 000 Bradshaw "art galleries" decorating rock overhangs along Australian rivers. (Ref. 2) References Ref. 1. Cardich, Augusto; "The First Americans: Were They Australians?" The Mammoth Trumpet, 16:4 , March 2001. Cr. C. Davant. Ref. 2. Coukell, Allan; "Spellbound," New Scientist, p. 34, May 19, 2001. Comments. We have already briefly discussed Australia's "mystery race" that was responsible for the highly anomalous Bradshaw paintings in SF#117. An early Australian cultural beachhead in South America is, of course, relevant to the preceding "pyramid" item. From Science Frontiers #136, JUL-AUG 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... is mildly anomalous that this unlikely hunting technique is found in so many places and employed by so many species. Our own research adds that strange New Caledonian bird, the kagu, to the list of worm-grunters. How did the kagu on an isolated Pacific island learn the technique? And in the States, another very strange bird, the woodcock, can sometimes be seen engaged in a weird rocking motion that is believed to set uppressure waves in the soil that lures earthworms to within reach of its long, forceps-like bill. (See BBB18 in Biological Anomalies: Birds) Besides indulging in strange, wild dances, the New Caledonian kagu grunts for worms. From Science Frontiers #136, JUL-AUG 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... have been earthquake lights, which have been officially named but not authoritatively explained. Even more interesting (to us) than the possible earthquake lights is the association of the Egryn Lights with the great Welsh religious revival of 19041905. A great variety of luminous phenomena were observed by many of the worshippers caught up in the fervor. In particular, the lights seemed to attend the preachings of a Mary Jones, who often held forth at the Egryn Chapel that gave the lights their name. (For details on the Welsh revival and its accompanying luminous phenomena -- psychic or geophysical, see our photocopied report "Psychological Aspects of the Welsh Revival." $7 .00p. From Science Frontiers #136, JUL-AUG 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... it -- is stirred up by winds and currents on Lake Michigan. This plume is easily visible to those who care to brave the bitter weather that time of year. The 125-mile-long chalky plume stretches along the shore from Wisconsin, past Illinois, around the southern tip of the lake, and up along the Michigan shore. The plume lasts several weeks and is easily seen by satellites high overhead. (Kendall, Peter; "Scientists Plumb Mystery of Lake Plume," Chicago Tribune, February 1997 or 1998. Cr. J. Cieciel.) Spring winds and currents stir up a 125-mile-long, chalky plume on Lake Michigan. From Science Frontiers #136, JUL-AUG 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... ground down 7.5 millimeters. Overall, dry sand with a smooth blade worked best. Similar tests with a tubular copper drill were also successful. (Stocks, Denys A.; "Testing Ancient Egyptian Granite-Working Methods in Aswan, Upper Egypt," Antiquity, 75:89, 2001.) Comment. Stocks did not confront a potential stone-working anomaly identified by C. Dunn in his The Giza Pyramid. It seems that the drill marks on the sides of the sarcophagus in the King's Chamber imply that the soft copper Egyptian drills apparently advanced about 500 times faster than possible with the toughest modern drills! There is something amiss here. 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) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...

... Sourcebook Project Sourcebook Subjects The whale-on-its-tail fossil Near Lompoc, California, is a large deposit of diatomaceous earth, so-called because it is composed almost entirely of countless billions of exquisitely sculptured diatom skeletons. Uniformitarian geologists have steadfastly maintained that such diatomaceous-earth deposits require millions of years to form as the tiny skeletons sink slowly to the sea floor. At Lompoc, however, embedded in the thick layer of diatomaceous earth is the fossil of a large whale apparently standing on its tail. How could this whale fossil have maintained its position and integrity over hundreds of thousands of years as it was buried millimeter by millimeter? Wouldn't the bones have been quickly scattered? Creationists have pointed to this whale as proof that the Lompoc diatomaceous-earth deposit was formed catastrophically, interring the whale almost instantaneously, and burying doctrinaire uniformitarianism at the same time. (Creationists want to "shorten" geological time to fit Biblical schedules.) But was the whale really entombed on its tail? Creationist geologists studied the Lompoc deposit and put a different slant on the story but not on its ending. "Contrary to some reports that have circulated, the 80-90 ft (24-27 m) long fossilised baleen whale found in April 1976 in an inclined position in a diatomite unit in the Miguelito Mine at Lompoc, California, was not buried while 'standing on its tail'. An onsite investigation has revealed that the diatomite unit which entombed the whale is also inclined at the same angle, the whale having been buried in the diatomite unit while both ...

... 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 Two Tsumani Tales Only a few years ago astronomical catastrophism was denied as a major factor in geological change. Now one reads everywhere of huge terrestrial impact craters, iridium layers, and tektite deposits. Even so, one necessary consequence of 70% of the large impacts has been neglected until recently: the giant tsunamis and marine incursions that must have swept over the coasts of the continents following impacts at sea. This oversight is now being rectified. 100,000 BP. The South Pacific. A longstanding geological enigma of the New South Wales coastline is the curious distribution of sand dunes. Those headlands less than 40 meters high have lost most of their dunes, leaving only raw, unweathered rock. On the other hand, the higher headlands have retained these dunes. Australians B. Young and T. Bryant hypothesize that a tsunamis 40 meters high swept the lower headlands clean about 100,000 years ago. They can even plot the incoming wave's direction, because a few remnants of the coastal dunes still cling to the southwest corners of the headlands along the NSW coast south of Newcastle. In their scenario, the tsunamis came from the northeast, smashed into the Solomons, southeastern Australia, and northeastern New Zealand. The Great Barrier Reef protected northeastern Australia from the full force of the wave. Young and Bryant favor a Hawaiian landslip as the initiator of the tsunamis, but acknowledge that an asteroid impact could also have done ...

... Sourcebook Subjects Did barnard & mellish really see craters on mars?The answers are "No" and "Probably," respectively. Well, so what? Everyone knows from spacecraft photos that Mars is definitely peppered with craters; and who are Barnard and Mellish anyway? E.E . Barnard was one of the great American telescopic observers. J.E . Mellish was an amateur astronomer and a protege of Barnard. Both men may have seen Martian craters; Barnard at Lick Observatory in the early 1890s, and Mellish at Yerkes in 1915. These early dates are what make this story interesting, because prior to the Mariner-4 flyby of Mars in 1965, anyone claiming to have seen craters on Mars would have been labeled a crackpot. Just a mere three decades ago, planetary catastrophism was a ridiculous notion. Barnard never dared publish his drawings of Martian craters for fear of ruining his reputation. Mellish was not so reticent. He wrote and lectured widely on his anomalous observations. No one believed him because his observaconflicted with reigning paradigms. Once the paradigm shifted and craters on other planets were legitimized, astronomers looked back and wondered if Barnard and Mellish really did see craters. After all, nobody else had, although several reknowned astronomers had drawn networks of canals they had definitely seen. Some of Barnard's early sketches of Mars surfaced in 1987. They show known volcanos and the huge canyon complex called Valles Marineris, but the spots (thought to be craters) do not coincide with any known craters. Unfortunately, Mellish's drawings of his craters were destroyed ...

... Science Frontiers ONLINE No. 76: Jul-Aug 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Catastrophic flooding on mars?Could that parched red planet seen in the Viking pictures have been the site of a colossal flood -- a wall of water greater than anything ever seen on earth? Terrestrial geologists point to the Channeled Scablands in eastern Washington State as evidence of what the sudden release of a huge lake's water can do to the landscape. Everywhere in this part of Washington are deeply incised grooves and dry cataracts separated by water-streamlined bars. Exactly this sort of harsh, scoured topography can be found at Kasei Valles, Mars. "The upper part of the channel system is typically less than 1 km deep and descends from Echus Chasma about 1 km over a distance of 1000 km; it then splits into north and south channels. On the basis of a stereomodel of Viking images, we have measured the geometry of a steep, constricted reach of the north channel that drops 900 m in only 100 km. A late-stage flood is hypothesized to have scoured the channel. If we assume that channel striations indicate water levels, then the flood had a minimum cross-sectional area of 3.12 x 107 m2 (the putative flood had a width of 83 km, an average depth of 373 m, and a maximum depth of 1280 m). These channel measurements suggest that flood vel ocities ranged from 32 to 75 m. s-1 and that discharge was greater than 1 km3 ...

... Science Frontiers ONLINE No. 73: Jan-Feb 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Asteroid impact or volcanos?The debate over the real cause of the terrestrial catastrophism that occurred at the Cretaceous-Tertiary boundary, some 65 million years ago, grinds on. Some physical scientists claim rather imperiously that the dinosaurs and many other species were done in by the impact of a huge asteroid/meteorite. The worldwide iridium spike is conclusive, they say. Many paleontologists and geologists, however, remain unconvinced and prefer widespread volcanism. We have already covered the various arguments in past issues of Science Frontiers; here, we want to advise our readers that a pair of excellent articles by principals in this debate have appeared in Scientific American. Generally speaking, it seems that the proponents of the impact theory are now listening to the other side. For example, multiple impacts are now proposed to account for evidence of the type introduced below. (Alvarez, Walter, and Asaro, Frank; "An Extraterrestrial Impact," Scientific American, 263:78, October 1990. Also: Courtillot, Vincent E.; "A Volcanic Eruption," Scientific American, 263:85, October 1990.) A spike dulled. The case for a single asteroid/meteorite impact has been weakened by a recent reexamination of the classic exposure of the CretaceousTertiary boundary at Gubbio, Italy. Here, the discovery of an iridium "spike" at the boundary was thought to betoken a sudden, catastrophic, extraterrestrial event. On further ...

... -old fossil leaves have been found within 400 kilometers of the South Pole. (Francis, Jane E.; "Arctic Eden," Natural History, 100:57, January 1991. Also: Peterson, Christian; "Leafing through Antarctica's Balmy Past," New Scientist, p. 20, February 9, 1991.) Comments. Coal beds are also known from Spitzbergen and Antarctica. The vision of dinosaurs roaming polar Edens evokes many questions. If the polar regions were indeed 10-20 C warmer than now, what could have survived at the Equator? The dates given above (3 and 45 million years ago) for polar heat waves are well after the 65million-year demise of the dinosaurs. This suggests that the biosphere recovered very well from the KTB catastrophe. Why, then did the dinosaurs succomb so completely? From Science Frontiers #75, MAY-JUN 1991 . 1991-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 61: Jan-Feb 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Celestial Crucible "Catastrophic extinctions caused by impacts would change the rules governing who is most fit, who becomes extinct, and who survives. 'If much of the patterning of life's history is not set by Darwin's slow biotic mechanisms, then I think Darwin is in trouble. Is catastrophic mass extinction a major agent of patterning?' If so, 'impacts are a quirky aspect' of the process." Who is speaking within the single quotes above? S.J . Gould, a proponent of the punctuated equilibrium view of the evolutionary scenario. He added: "' The history of life is enormously more quirky than we imagined.'" In fact, the geological record shows so many quirk-inducing impacts that there is little room left for slow, plodding, uniformitarian evolution of the earth itself, life-in-general, and humanity. Mammals, for example, may not have survived the postulated (but now assumed factual) Cretaceous-Tertiary impact event simply because they were small in size - not smarter. (Kerr, Richard A.; "Huge Impact is Favored K-T Boundary Killer," Science, 242:865, 1988.) Comment. It now seems that Cassius was wrong about the stars when he was lining up Brutus to help assassinate Julius Caesar. And the "celestial" situ ation gets even worse below. From Science Frontiers #61, ...

... Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Do large meteors/comets come in cycles?Only a few years ago, geologists refused to recognize any terrestrial meteor craters larger than Arizona's Meteor Crater, which is merely a mile or so in diameter. Now, we have a long list of craters or astroblemes (star wounds), some of which measure hundreds of miles across. In fact, there are enough large dated crters so that some scientists have taken up a time-honored human pastime: Looking for cycles or periodicities in the data. (Humans can find cyclicities in almost any collection of data!) To be more specific, some have claimed that large meteor craters come in clusters dated 28-31 million years apart. These catastrophic events have been correlated with biological extinctions, magnetic field reversals, and basalt flooding. The astronomical causes of this supposed periodicity range from the solar-system's crossing of the galactic plane, to the perturbations of an unseen solar companion, to regular perturbations of the Oort cloud of comets that is thought to hover at the fringe of the solar system. In short, a large, interlocking edifice of geological and astronomical speculation has been erected upon a foundation of terrestrial crater ages. But how well do we really know the ages of these craters? How complete is the cratering record? The answer to the first question is: "Not well at all." Further, we can be certain that many craters still lie undiscovered beneath sediments. In addition, most meteors/comets ...

... year Milankovitchtype climatic cycles, as impressed by variations in the earth's orbital precession and eccentricity. Analysis of the Fort Hays Limestone Member, however, reveals that while bundles of five couplets do occur, the number may vary from 1 to 12. Clearly, things are not clear-cut. (Laferriere, Alan P., et al; "Effects of Climate, Tectonics, and Sea-Level Changes on Rhythmic Bedding Patterns in the Niobrara Formation (Upper Cretaceous), U.S . Western Interior," Geology, 15:233, 1987.) Comment. As the rather comprehensive title of this article states, purely terrestrial forces may alter the rhythm. It may be, though, that cyclothem changes reflect actual changes in the earth's orbit resulting from astronomical catastrophism. The Cretaceous saw many geological and biological changes. Cyclothems may tell us more about them. All ten members are never present at one location. The most common sequences are 1, and/or 2, 4, 5, 8, 9 and 10. From Science Frontiers #55, JAN-FEB 1988 . 1988-2000 William R. Corliss ...

... , be initiated by asteroid impact, which could stimulate eruptions. (Rampino, Michael; "Dinosaurs, Comets and Volcanoes," New Scientist, p. 54, February 18, 1989.) The dinosaur angle. If dinosaurs were truly susceptible to extinction by either asteroid impact, widespread volcanism, or some combination of both, one would expect to find their numbers and diversity drastically curtailed during Mesozoic impact events. Instead, the dinosaurs not only survived these impacts but prospered. Their demise, which began before the K-T event, was probably not due to either impact or vol canism. (Paul, Gregory S.; "Giant Meteor Impacts and Great Eruptions: Dinosaur Killers?" BioScience, 39:162, 1989.) Reference. Impact craters and stratigraphic evidence of catastrophism are cataloged in: Carolina Bays, Mima Mounds and Anomalies in Geology, respectively. For information on these catalogs, visit: here . From Science Frontiers #63, MAY-JUN 1989 . 1989-2000 William R. Corliss ...

... it was about the same when the dinosaurs met their demise. At these high latitudes the dinosaurs either had to contend with two months of darkness each year or they had to migrate many hundreds of miles over the rough Alaskan landscape. The visions of dinosaurs groping for tons of vegetable food in the polar night is about as incongruous as imagining them trekking down to the Lower 481 Scientists are now maintaining that these dinosaurs did prosper on the shore of the Arctic Ocean, even in the dark, because the climate then was semitropical or temperate. This was because the earth's climate was more equable or uniform. They are, however, surprised by the lack of mineral deposition in the dinosaur bones, which look rather "mode m". (Anderson, Ian; "Alaskan Dinosaurs Confound Catastrophe Theorists, " New Scientist, p. 18, August 22, 1985. ) (The apparent survival of dinosaurs during two months of darkness is being used as an argument against asteroidal catastrophism, which it is claimed wiped out the dinosaurs with a long-lived dust cloud that blocked the sun. WRC) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...

... red star. Some dispute these old accounts because today Sirius is white with a bluish tinge, and is classified as a white dwarf. W. Schlosser and W. Bergmann have now found a "new," and apparently independent reference to Sirius' red color. It is in a manuscript of Lombardic origin, which contains the otherwise lost "De Cursu Stellarum" by Gregory of Tours (who lived about 538593 AD). This new source reiterates that Sirius was once a red star, leading Schlosser and Bergmann to speculate as follows: "Thus, Sirius B might well have changed from a red giant to the white dwarf as it appears today. However, the rapidity and smoothness of this transformation are quite unexpected, and its timescale is surprisingly short. Furthermore, no traces of catastrophic effects connected with such an event have ever been found. The only indication that something has happened is the somewhat higher metallicity of Sirius A, believed to have resulted from contamination by the giant's blown-off shell." (Schlosser, Wolfhard, and Bergmann, Werner; "An Early-Medieval Account on the Red Color of Sirius and Its Astrophysical Implications," Nature, 318:45, 1985.) References. See BHT5 in our catalog: Biological Anomalies: Humans I for the surmise that the ancients, especially those of the heroic age, were color-blind! In this issue's PSYCHOLOGY section, we find that the ancients may have been deficient in another, even stranger way. The above-mentioned catalog is described here . From Science Frontiers ...

... floor of the Gulf of Mexico with its GLORIA II side-scan sonar. Hundreds of new salt domes, submarine channels, and landslides have been recorded. A big surprise was the discovery of large fields of sand dunes in 3000 meters of water. Similar dune fields were found in the Pacific in 1984. G. Hill, of the U.S . Geological Survey has ventured, "There's something going on in deep water that people just aren't aware of. " (" A Systematic Sounding of the Sea Floor, " Science News, 128:191, 1985.) (At issue here is how sand dunes are formed in such deep water. Are they the consequence of colossal bottom currents, perhaps set in motion by huge earthquakes of some other natural catastrophe ? Is it possible (gasp!) that the dunes were not formed under water at all ? The area involved also boasts salt layers and submarine channels and canyons, both of which are not well-explained. WRC) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...

... etc., along with the forced circulation of air, blood, and other sub stances. This latter approach survived, while the two-dimensional Ediacaran Experiment did not. The demise or extintcion of the Ediacarans led Gould, the author of this far-ranging article, to the influence of extinctions on life in general -- a hot topic these days. Gould stated that with natural selection operating, one would expect continual "improvement" in life forms, but that this had not happened. "I regard the failure to find a clear 'vector of progress' in life's history as the most puzzling fact of the fossil record. But I also believe that we are now on the verge of a solution, thanks to a better understanding of evolution in both normal and catastrophic times. We need a twotiered explanation for patterns (or non-patterns) in the history of life." The first tier of explanation involves the theory of punctuated equilibrium, as championed by Gould and Eldredge. Gould says he once thought that punctuated evolution would be sufficient to explain all of life's development, but that now a second tier seemed required; namely, a general theory of mass extinction or what catastrophism does to life and its development. (Gould, Stephen Jay; "The Ediacaran Experiment," Natural History, 93:14, February 1984.) Ediacaran life forms were typically flattish to maximize external area. From Science Frontiers #33, MAY-JUN 1984 . 1984-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 26: Mar-Apr 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Punching A Hole In The Asteroid Hypothesis Scientists have long searched for a cause for the profound geological and biological changes that apparently occurred between the Cretaceous and Tertiary periods. When an iridium-rich layer was found in several areas at this important boundary, many claimed it as proof of an asteroid impact or some other catastrophism that would nicely explain the massive worldwide changes that occurred. With this preamble in mind, consider the following abstract from an article in Science: "Analyses of the clay mineralogy of samples from the Cretaceous-Tertiary boundary layer at four localities show that the boundary clay is neither mineralogically exotic nor distinct from locally derived clays above and below the boundary. The significant ejecta component in the clay that is predicted by the asteroid impact scenario was not detected." (Rampino, Michael R., and Reynolds, Robert C.; "Clay Mineralogy of the Cretaceous-Tertiary Boundary Clay," Science, 219:1983.) From Science Frontiers #26, MAR-APR 1983 . 1983-2000 William R. Corliss ...