... Science Frontiers ONLINE No. 40: Jul-Aug 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects STANDING-STONE CLUSTER IN EASTERN MASSACHUSETTS "Driving up the roadway into LeBlanc Park in February 1984, I saw a sight I had not seen since my travels in the British Isles. Situated on a mound was a cluster of weathered megalithic stones. I was filled with disbelief -- it just couldn't be -- someone was having fun with my senses; Western Europe, yes, but here, in Massachusetts, no. The reality of the scene before me was very difficult to focus on, the parallel with sites I had seen in Scotland and Ireland was astonishing." Thus wrote James P. Whittall, II, when describing a group of standing stones on a mound called Druid Hill, at Lowell, Massachusetts. The mound itself is 112 feet long by 56 feet wide. The stones are separated into two groups as shown. Since the site is near a highly populated area, it has seen some disturbance, and some stones have been moved. There is no historical record of the site's construction; the stones may have been there for centuries. Neither has there been any archeological investigation or site dating. Obviously, much more research must be done before we can get a clear idea as to who the builders were. Despite its close resemblance to European standing-stone complexes, the Lowell cluster could be a recent construction -- an intentional replica of European sites. Note that it is ...

... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The End Of The Old-Model Universe That cosmology is in flux is apparent in the following sentence found in Nature: " The standard ideas of the 1980s about the shape and history of the Universe have now been abandoned -- and cosmologists are now taking seriously the possibility that the Universe is pervaded by some sort of vacuum energy, whose origin is not at all understood." Does this mean that the Big Bang, the mainstay of the astronomy we were taught in school, is now being cast aside? After all, the Big Bang does model fairly well three important observations: The apparent expansion of the universe; The 3 K microwave background; and The abundances of the light nuclei. But try as they may, cosmologists have not been able to coax the Big Bang model to explain the large-scale lumpiness and structure of the galaxies and galaxy clusters. One problem with the Big Bang is that it has too many free parameters -- too much theoretical slack. Many cosmologists are now looking for a better model. This better model, to use the words of P. Coles, should be more "exciting" and "stranger," something "perhaps not even based on General Relativity." (Coles, Peter; "The End of the Old Model Universe," Nature, 393:741, 1998.) Questions. Isn't cosmology already already "strange" enough? Since when ...

... Science Frontiers ONLINE No. 111: May-Jun 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Anasazi Ley Line?A popular archeological pastime in Britain is "ley hunting" or the search for alignments of ancient sites. The underlying premise is that the peoples who constructed Stonehenge, Avebury, and other megalithic sites had a penchant for aligning them, even when they were separated by many miles. Exactly why anyone would wish to go to such trouble escapes the modern mind. American archeologists generally eschew ley hunting, but S. Lekson, from the University of Colorado, was surprised to find that three important Anasazi sites in the Southwest are actually aligned with high precision along Longitude 107 57'. The three sites are: Aztec Ruins and Chaco Canyon (New Mexico) and Casas Grandes (Mexico). Even though the first and last are separated by about 450 miles, all sites are within 1 kilometer (5 /8 of a mile) of the north-south line. Lekson maintains that an alignment this precise cannot have happened by chance. How could the Anasazi have achieved such an accurate alignment over such rugged terrain? It would not be easy even with modern transits. (Cohen, Philip; "One Dynasty to Rule Them All," New Scientist, p. 17, December 14, 1996.) Comment. It is interesting but perhaps not relevant that the Olmecs, predecessors of the Anasazi farther to the south, may have possessed the magnetic compass. See: Carlson, John B. ...

... old books from the anomaly literature used to be available, photocopied and bound in heavy, printed covers. Format: 8.5 " x 11. They are no longer available. Ancient Monuments of the Mississippi Valley View Cart Buy online via PayPal with MC/Visa/Amex E.G . Squier and E.H . Davis. 376 pp., 1848, $29.95p One of the most remarkable archeological books ever published in America! Its appearance in 1848 created a great sensation. For, as America moved west, the remnants of the great civilization of the Moundbuilders raised much speculation. Even today we marvel at their immense, flat-topped temple mounds, the huge earthen enclosures, and the meticulously wrought artifacts of copper, mica, and clay. Squier and Davis objectively described the features of this New World civilization in words and drawings. It is the drawings, though, that really capture the reader. They are superb, almost overwhelming. Rude Stone Monuments in all Countries: Their Age and Uses View Cart Buy online via PayPal with MC/Visa/Amex J. Fergusson, 1872, 578 pp., $26.95p Fergusson's famous compilation of worldwide megalithic monuments is a fit complement to our photocopied edition of Ancient Monuments of the Mississippi Valley, from 1848. Fergusson has filled his book with 233 line drawings of artifacts from the megalithic period. The emphasis is on the massive monuments, but you'll also see some sketches of pottery and inscribed stones. Naturally, there are long chapters on the British Isles, Ireland ...

... example, depicts a Viking-like ship almost identical to those carved on a rock near Boslund, Sweden. There are also abstract symbols like those used by Northern Europeans in the same time frame. (Anonymous; "Did Vikings Pay Early Visit?" Baltimore Sun, August 13, 1999.) Comment. Kelley's observations certainly bolster B. Fell's claims in his book America B.C . that Europeans made landfall in North America long before Columbus set sail. Early Chinese. Perhaps Chinese adventurers beat the Europeans to the New World. At a symposium in Anyang, China, M. Xu Hui (Texas Christian University) presented 56 matching sets of characters found in both the Americas and China. "They so closely resemble the 3,000-year-old Shang Dynasty characters for the sun, sky, rain, water, crops, trees, and astronomy that if they had not been found in America, Chinese experts would have classified them automatically as pre-221 B.C . Chinese script." (Rennie, David; "Carvings Link Chinese with American Indians," Chicago SunTimes , August 31, 1999. Cr. J. Cieciel.) Early Australians. A new BBC documentary entitled Ancient Voices proclaims that the first settlers of the New World were from Australia and Melanesia. Skulls thought to be 9,000-12,000 years old have been unearthed in Brazil with features that closely match those of Australians living about 60,000 years ago. Evidence of even earlier contacts comes from stone tools and charcoal at Serra ...

... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Really ancient oil -- and abundant life Geologists usually don't bother looking for oil in very ancient (Precambrian) rocks for two reasons: Conventional wisdom insists that oil is derived almost exclusively from organic matter, and additional conventional wisdom assures us that life was exceedingly scarce on earth billions of years ago. Any oil that was created billions of years ago would have surely been destroyed by intense pressures and high temperatures over the eons. Yet, Precambrian oil in commercial quantities has been found in formations up to 2 billion years old (in Siberia, Australia, Michigan, for example). While some of this oil might have migrated in-to the Precambrian rocks from younger source rocks, some of it does seem indigenous and, therefore, ancient. (SF#48) Now, three Australian scientists (R . Buick, B. Rasmussen, B. Krapez) have discovered tiny nodules of bitumen (lumps of hydrocarbons) in sedimentary rocks up to 3.5 billion years old in Africa and Australia. These bitumen nodules were formed when natural hydrocarbons were irradiated by radioactive isotopes that coexisted in the ancient rocks. Futhermore, these African and Australian rock formations were never severely deformed or subjected to high temperatures. The possibility exists, therefore, that some of the earth's oldest rocks may contain substantial oil reserves. So far, no one has seriously looked for oil in Precambrian rocks because of the two preconceptions ...

... the entire Great Lakes region (and beyond) was subjected to particle bombardment and a catastrophic nuclear irradiation that produced secondary thermal neutrons from cosmic ray interactions. The neutrons produced unusually large quantities of 239Pu and substantially altered the natural uranium abundances (235U/238U) in artifacts and in other exposed materials including cherts, sediments, and the entire landscape. These neutrons necessarily transmuted residual nitrogen (14N) in the dated charcoals to radiocarbon, thus explaining anomalous dates. Some North American dates may in consequence be as much as 10,000 years too young. So, we are not dealing with a trivial phenomenon! Supporting evidence. Four main categories of supporting evidence are claimed and presented in varying degrees of detail. Anomalously young radiocarbon dates in north-central North America. Example: the Gainey site in Michigan. Physical evidence of particle bombardment. Example: chert artifacts with high densities of particle-entrance wounds. Anomalous uranium and plutonium abundance ratios in the affected area. Tree-ring and marine sediment data. The authors claim that the burst of radiation from a nearby supernova, circa 12,500 years ago, not only reset radiocarbon clocks but also heated the planet's atmosphere, melted ice sheets, and led to biological extinctions. If verified, the claimed phenomenon would also "reset" archeological models of the settlement of North and South America. To illustrate, we may have to add as many as 10,000 years to site dates in much of North America! (Firestone, Richard B., and Topping, William; "Terrestrial Evidence of a Nuclear ...

... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunguska: An Inside Job?Virtually all speculation about the 1908 Tunguska Event assumes an external cause: a meteor, a comet, an asteroid, or even the accidental explosion of an alien spaceship. A recent meeting of Tunguska experts in Russia looked down rather than up for Tunguska's initiating phenomenon. In this open-minded review, two little-publicized but highly pertinent Tunguska observations were discussed. The catastrophe had five centers of destruction rather than one. At the Tunguska site are many large root stumps, not yet rotted away, that cannot be linked to any pits associated with their origin. These stumps were apparently blown out of the ground and hurled dozens of meters from where they stood prior to the Event. Next to be considered were the unappreciated similarities between the Tunguska Event and the 1883 explosion of Krakatoa. The four bright nights in Europe and western Asia, straddling 30 June 1908, are remimiscent of the 1883 Krakatoa outburst, they ask for transient scatterers in the upper atmosphere, above 500 km, at heights which only methane and hydrogen are light enough to reach in sufficient quantity. Fast-rising natural gas has been repeatedly detected in recent years, in the form of "mystery clouds"---by airplane pilots---and indirectly as pockmarks on 6% of the sea floor. In other words, Tunguska might well have been---not an extraterrestrial impact--- ...

... Science Frontiers ONLINE No. 17: Fall 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Were the british megaliths built as scientific instruments?Alexander Thom and his son have meticulously surveyed nearly 100 megalithic sites in Britain and nearby Europe. Archeologists generally applaud the Thoms' careful work but vehemently attack their conclusions. The Thoms see in their surveys evidence that the early Britons built megalithic astronomical instruments with scientific capabilities far beyond their needs for calendar-keeping. Actually, they suggest that these "primitive" people built a society so strong that it could devote time and labor to a program of astronomical research generations in extent. In short, they were precociously bright and socially strong; so much so that they could indulge their scientific desires. The Thoms' prehistoric scenario departs radically from that of the current archeological establishment, which has searched for flaws in the Thoms' work. Naturally, some defects have emerged. Clive Ruggles, the author of the present article, is one of the skeptics. He feels that the megalithic sites are impressive and intriguing but not the work of mental giants. After all, Ruggles says, 72 points of the compass have some lunar significance. Almost any circle of stones built for simple ritual purposes would have some significant lunar alignments! (Ruggles, Clive; "Prehistoric Astronomy: How Far Did It Go?" New Scientist, 90: 750, 1981.) Comment. The kind of statistical argument reminds one of those monkeys who will eventually type out the works of Shakespeare. Presumably, the ...

... Science Frontiers ONLINE No. 82: Jul-Aug 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The humongous organism contest!When we read of that 10,000-kilogram fungus discovered in Michigan, it sounded like a good item for Science Frontiers. But then it was described as the "largest and oldest living organism," and we knew that if we waited a couple months this Guinness-like record would be eclipsed. (Superlatives are risky in this business!) A killer fungus in Washington State. In the foothills of Mount Adams, a specimen of the fungus Armillaria ostoyae covers 1,500 acres and seems to be 400-1 ,000 years old, as comapred to the 38-acre, 1,500-year-old Michigan fungus. Although younger than its Michigan counterpart, the Washington fungus is lethal and can wipe out whole populations of trees. (Anonymous; "The Great Fungus," Nature, May 21, 1992.) Comment. It has also been reported that a huge, spreading, pathological growth exists in Washington, DC ! Some even more humongous plants. "A grass clone, Holcus mollis , has been found with a diameter of 900 metres and an age of over 1000 years. A clone of box-huckleberry has been found with a diameter of 2000 metres and an age of 13 000 years. The big granddaddy is, however, an aspen ( Populus fremaloides ) covering 81 hectares and over 10 000 years old." (Bullock, James; ...

... 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 The Acoustics Of Rock Art S. Waller has visited rock art sites in Europe, North America, and Australia. Standing well back from the painted walls, he claps or creates percussion sounds, and records the echos bouncing back. A casual observer might be tempted to call 911. It turns out, though, that rock art seems to be placed intentionally where echos are not only unusually loud but are also related to the pictured subject matter. Where hooved animals are depicted, one easily evokes echos of a running herd. If a person is drawn, the echos of voices seem to emanate from the picture itself! "At open air sites with paintings, Waller found that echos reverberate on average at a level 8 decibels above the level of the background. At sites without art the average was 3 decibels. In deep caves such as Lascaux and Font-de-Gaume in France, echos in painted chambers produce sound levels of between 23 and 31 decibels. Deep cave walls painted with cats produce sounds from about 1 to 7 decibels. In contrast, surfaces without paint are 'totally flat'." What did the ancient artists have against cats? (Dayton, Leigh; "Rock Art Evokes Beastly Echos of the Past," New Scientist, p. 14, November 28, 1992.) From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...

... 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 Who Built The Kaimanawa Wall?Some 30 kilometers south of Lake Taupo, in New Zealand, stands an enigmatic array of stone blocks. It "looks" like a wall; a human-built wall. It also "looks" old; perhaps 2,000 years old according to some. Who built it? Passions are running high in New Zealand, where three hypotheses are being advanced: The wall was built some 2,000 years ago by the first settlers of New Zealand, the Waitahas, who were subsequently nearly exterminated by the Maoris, who arrived only 800 years ago. There are political problems with this theory, for the Maoris insist they are the original New Zealanders and therefore are due compensation for lands expropriated by later Europeans. The wall is merely what's left of a sawmill built only 50 or so years ago. The wall is simply a natural rock formation that has happened to split neatly into rectangular blocks -- like those slabs of beach rock that comprise the controversial Bimini "road" in the Bahamas. Future study of the "wall" will doubtless narrow the list to one. Meanwhile, let's take a look at the wall itself. B. Brailsford, of Christchurch, has been the chief investigator of the Kaimanawa wall, aided by American D.H . Childress, and others. The stones that make up the wall are 4-ton blocks of ignimbrite, ...

... 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 Venus Too Pristine In the November 16 issue of Science, R.A . Kerr remarks: "The planetary geologists who are studying the radar images streaming back from Magellan [the space probe] find that they have an enigma on their hands. When they read the geological clock that tells them how old the Venusian surface is, they find a planet on the brink of adolescence. But when they look at the surface itself, they see a newborn babe." (Kerr, Richard A.; "Venus Is Looking Too Pristine," Science, 250:913, 1990.) Comment. Of the 75 craters mapped so far by Magellan , only one shows any signs of aging; i.e ., tectonic movements, lava-filling, etc. The surface of Venus should be hundreds of millions of years old, yet it looks freshly minted. The anticipated spectrum of degradation has not yet been seen. One theory is that recent lava flooding erased the old craters, and we now see only recent impact scars. But why would a planet's volcanism turn off so completely and so abruptly? Our earth, Venus' sister planet in many ways, still perks away, leaving craters of various ages. Why is Venus so different? One idea not advanced by Kerr in Science is that Venus might be a recently acquired member of the solar system! From Science Frontiers #73, JAN- ...

... Lunar Landslide Lights Moonwatchers have reported light flashes, strange red glows, and mist-like patches emanating from certain lunar locales, particularly the huge craters Alphonso and Picard. Hundreds of such observations have accumulated since the Middle Ages. Modern more-systematic scrutiny indeed confirms that the moon is not such a dead place after all. (See ALF in The Moon and the Planets for much more on this fascinating subject.) Moonquakes, gaseous emissions, and even volcanic activity have been the favorite explanations of these TLPs (Transient Lunar Phenomena), but these are only surmises. The many close-up photos of the lunar surface taken in 1994 by the lunar satellite Clementine gave B. Buratti, K. Herkenhoff, and T. McConnochie the opportunity to search for geological common denominators connecting the sites where TLPs have been most frequent. The suspicious sites are characterized by bluish spectra that usually indicate unusually fresh deposits of lunar debris. Furthermore, these areas are usually found along the inside edges of large craters. Buratti et al opine that these are the sites of recent landslides that have cascaded off the crater edges. The dust and volatile gases released by these events might account for the observed luminous phenomena. (Cowen, Ron; "Explaining a Lunar Mystery," Science News, 150:314, 1996.) Reference. To order the book The Moon and the Planets (mentioned above), visit here . The lunar crater Gassendi on April 30 and May 1, 1966. The shaded areas mark the red glow observed on those dates by astronomers. From Science Frontiers # ...

... Science Frontiers ONLINE No. 108: Nov-Dec 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Deflating a paradigm: brazil's pedra furada The paradigm. The New World was peopled from Asia by migration across the Bering Land Bridge about 12,000 years ago, or perhaps a wee earlier. The Pedra Furada site has been dated at 50,000 BP by N. Guidon and her team of archeologists. This challenge to the dominant paradigm is powerful and unambiguous. Picking up the gauntlet, several more-conservative archeologists visited the Brazilian site and penned a blistering critique in Antiquity. (Ref. 1) Their major contention was that the 500+ supposedly human-made stone "artifacts" collected by Guidon's team are actually "geofacts"; that is, they were chipped and flaked naturally as rocks fell one upon the other from nearby cliffs. We discussed this problem in some detail in SF#105. Several other reservations about the Pedra Furada work are also offered in Ref. 1. The reaction of Guidon et al to the Antiquity paper was thunderous to say the least. It revealed the depth of the chasm separating archeologists on the date of human occupation of the New World as well as internecine politics in archeology. (Ref. 2) Guidon et al flung two serious charges at the authors of the first Antiquity paper: (1 ) They had their facts all wrong; and (2 ) Their objectivity was distorted by their loyalty to the aforestated paradigm. Not withholding any punches, ...

... 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 The mexican sellos: possible evidence for early european contacts Mexican sello with stylized heron incorporating Libyan characters, such as those listed at the right. Thousands of Mexican sellos (seals), both of the cylinder and flat types, have been collected in the world's archeological museums. Many bear striking designs, like that of the heron shown below. For too many years, archeologists have considered these designs to be only designs. But with more discerning examination, bolstered by knowledge of ancient Old World alphabets, it now appears that these seals incorporate many letters from Libyan, Iberian, Punic, and other alphabets. Since many of the Mexican sellos date back to 1200 BC, the implication is that Old World-New World contacts occurred long before the Christian era. But, asks G.F . Carter in his long article on the sellos, if the ancient peoples of Mexico and Central America did absorb Old World symbols, "Why was the alphabet not developed instead of the clumsy hieroglyphics?" (Carter, George F.; "Mexican Sellos : Writing in America, or the Growth of an Idea?" Epigraphic Society, Occasional Papers , 19:159, 1990.) Comment. Hieroglyphics do appear clumsy to us, but perhaps it is because we do not fully appreciate them. There may be nuances of shape and rendition that convey more than the bare translation of the glyph, just as a sonnet ...

... erectus skull. (Right) Homo sapiens skull. Are these markedly different skulls representative of two different species or merely variants of the same species? The record of human evolution is littered with skeletons -- not only the legitimate bones of early hominids but also with discarded evolutionary charts and discredited taxons. A taxon is a welldefined biological classification, such as a phylum or species. We modern humans are given the label Homo sapiens. We are told with great assurance that we evolved from earlier hominids, such as Homo erectus and, perhaps, Homo nean derthalis. Homo erectus has long been a key feature of all those charts of human evolution decorating our textbooks. But this venerable taxon is getting fuzzier and fuzzier. "Reappraisal by Cornell University paleontologists of a 200,000-year-old skull from India's Narmada River suggests that the fossil was probably a Home sapiens -- not a Homo erectus -- and marks another spot of the globe where humans may have evolved. .. .. . "The reappraisal of Narmada Man preceded the recently announced discovery of two Middle Pleistocene fossils from Yunxian, China, that seem to share the traits of Homo erectus and Homo sapiens. Kennedy would like to bury the taxon Homo erectus altogether, "Those who would like to keep the taxon see a 200,000year-old Narmada Man as a last gasp for Homo erectus," he said." What will the anthropologists do now with all those skulls they labeled so confidently as Homo erectus? Actually, the possibility underscored by Narmada Man is that modern humans evolved ...

... Science Frontiers ONLINE No. 123: May-Jun 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Out-Henging Stonehenge Stonehenge may be more sophisticated in terms of astronomical alignments, but it is dwarfed by the newly discovered henge surrounding Ireland's hill of Tara. (A "henge" is simply a circular ditch and embankment.) The henge's ditch at Tara is 3 meters wide with a curious series of pits on either side. Its diameter is about 1 kilometer (5 /8 mile) compared to Stonehenge's diminutive 100 meters. Tara had long been considered an Iron Age site, but the presence of the giant henge pushes its use as a ceremonial site back to Neolithic times -- say, to 2,500 B.C . (Anonymous; NEARA Transit, 11:14, Spring equinox 1999.) Question. Are those pits analogous to the mysterious Aubrey holes at Stonehenge? From Science Frontiers #123, MAY-JUN 1999 . 1999-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Astounding Undersea Structure Near Okinawa "A structure thought to be the world's oldest building, nearly twice the age of the great pyramids of Egypt, has been discovered. The rectangular stone ziggurat under the sea off the coast of Japan could be the first evidence of a previously unknown Stone Age civilization, say archeologists." Wow! Is this true? This so-called "structure" is 600 feet long and 90 feet high. Said to be about 10,000 years old, it obviously predates the edifices of the ancient Egyptians and Babylonians. The "structure" is now under about 75 feet of ocean near a small island named Yonaguni southwest of Okinawa. During the Ice Ages, it would have been exposed, just like the Bering Land Bridge to the north. Of course, the crucial question is: Is it really artificial? R. Schoch, the Boston University geologist who vouches that the Sphinx is also about 10,000 years old (SF#79), described the "structure" as a series of huge steps about 1 meter high. Schoch is impressed by the regularity of the steps, but does not discount a natural origin. A photo taken by divers does reveal a remarkably regular, stepped surface, but nature can be very methodical on occasion. Adding to the artificiality of the "structure" is the claim that a "road" encloses it. (Barot, Trushar; ...

... Science Frontiers ONLINE No. 62: Mar-Apr 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Recent Martian Rivers Erode Alba Patera Most of the Martian surface is thought to be more than 3.8 billion years old. This portion is densely cratered from a period pf heavy meteorite bombardment. It is also carved by many channels that are thought to have been cut in ancient times by flowing water, water which quickly escaped into space or combined chemically with Martian minerals. The present atmosphere of Mars, in consequence, contains little water vapor. But some of the Martian landscape, notably Alba Patera, raises questions about the above scenario. The anomalous characteristic of Alba Patera is its relative smoothness and scarcity of impact craters. This Martian real estate is believed to be 2 billion years younger than the rest of the planet. Even so, it, too, is marked by "fluvial" features that resemble stream beds. Question #1 . How did Alba Patera get smoothed out or "reworked"? In other words, what happened to the ancient craters that must have pocked its surface, as they do everywhere else? Question #2 . Where did the water come from to cut Alba Patera's stream beds if all of the Martian water disappeared 2 billion years earlier? One line of thought maintains that "fluvial" does not mean "pluvial," and that Martian water has come from below rather than as rain from the atmosphere. Both fluvial episodes, in this view, occurred when something caused the ...

... 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 ...

... Science Frontiers ONLINE No. 88: Jul-Aug 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Early Life Surprisingly Diverse The three life forms sketched below are tiny microorganisms, not the worms they appear to be. They are thought to be bacteria, for they closely resemble modern cyanobacteria. What is most important about these fossilized micro-organisms is that they were found in the Apex chert of Western Australia. The Apex chert is designated Early Archean and assigned an age of 3.465 billion years [Four significant figures!]. It is rare to find any fossils at all in rocks this old, but apparently the Apex chert escaped most of the fossil-destroying metamorphism afflicting most Precambrian formations. Even more remarkable is the diversity of these suspected bacteria. J.W . Schopf reports finding no less than eleven different kinds so far--and our planet was only a few hundred million years old at the time the Apex chert was formed. Schopf's discoveries generate at least three questions: How could life have originated and diversified to such an extent in just a few hundred millions years? Why after such rapid diversification did these microorganisms remain essentially unchanged for the next 3.465 billion years? Such stasis, common in biology, is puzzling. If these microorganisms are really cyanobacteria, they would have released oxygen to the atmosphere. Is the standard assumption that the earth's atmosphere lacked oxygen until 2.2 billion years ago correct? (Schopf, J. William; "Microfossils of the Early ...

... Science Frontiers ONLINE No. 126: Nov-Dec 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ancient Stage Design In past issues of SF we have reported on the acoustical properties of rock-art sites (SF#83 and SF#123) and megalithic chambers (SF#102). This ancient recognition and use of the properties of sound to impress gatherings of people is rather remarkable for 4,000-5000 years ago. But we must be even more appreciative of megalithic-age talents when we discover that they also wedded visual effects with acoustical engineering when staging rituals and ceremonies. In effect, they were pioneering the design of auditoriums and church interiors. This marriage of architecture and sound was studied at two megalithic sites by A. Watson and D. Keating. Since we have previously attended to the acoustics of stone chambers, we will bypass their work on the huge chambered cairn called Camster Round and focus on the recumbent stone circle (RSC) called Easter Aquorthies near Aberdeen, Scotland. That RSCs are not ordinary stone circles is seen in this quotation from the paper by Watson and Keating. "Recumbent stone circles possess a number of characteristic features that have primarily been interpreted in visual or aesthetic terms. For example, their standing stones tend to be graded in height towards the southwest, creating a visual focus for the the large recumbent block itself, which lies between the two tallest stones. The recumbent at Easter Aquorthies is elaborated by two stones which project from its inner face to form an alcove. ...

... Science Frontiers ONLINE No. 90: Nov-Dec 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ancient romans in texas?If one searches long enough and hard enough, one can discover hints that just about any ancient culture you care to name set foot in the New World well before the Vikings and Columbus. Old coins, inscriptions, language concordances, and the like are taken by many as proofs that Egyptians visited Oklahoma, the Chinese moored along the Pacific coast, the Celts toured New England, and so on. Now, according to Professor V. Belfiglio, the ancient Romans had Texas on their itineraries. Belfiglio's evidence is fourfold, and so are mainstream criticisms: Roman coins found in Texas . The most convincing example came from the bottom of an Indian mound at Round Rock. This mound is dated at approximately 800 AD. Skeptics suppose that the coin was dropped on top of the mound in recent times and was carried to the bottom by rodents and tree roots. Hmmm! The remains of a shipwreck . Circa 1886, the wreck of an unusual ship was found in Galveston Bay. Belfiglio says this ship's construction is typically Roman. Nautical experts doubt this. but they will admit that real Roman craft were perfectly capable of sailing to Texas. The remains of an ancient bridge . Also in Galveston Bay, the timbers of an old bridge were found under 15 feet of sediment. A similar divergence of opinion prevails here. Language concordances . Belfiglio has pointed out many similarities between Latin and ...

... Science Frontiers ONLINE No. 130: JUL-AUG 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bog Breath Yes, bogs do breathe albeit rather erratically. The slow heaving of their surfaces is a poorly understood phenomenon as the following abstract demonstrates. The surfaces of bogs and fens in northeastern Minnesota may rise and fall by as much as 36 cm in a single day. This phenomenon, known as Mooratmung, or bog breathing, has been traditionally attributed to changes in water storage. However, the surface deformations recorded by static GPS [Global Positioning System] stations on bog and fen sites within the Red Lake peatland are more frequent and out of phase with precipitation events. These vertical fluctuations instead appear to be related to a complex interplay among climate, hydrology, and microbial gas-production. Climate-driven re-charge on bogs, for example, stimulates the production of biogenic gases by advecting root exudates deep into the peat profiles. Seasonal droughts, however, favor the formation of transient confining layers that trap biogenic gases into discrete pockets... Bog breathing may therefore be a surface manifestation of the accumulation and release of greenhouse gases in peat deposits. (Glaser, Paul H. et al; "Bog Breathing: the Curious Interplay of Climate, Ground-water, and Greenhouse Gases in Boreal Peatlands," Eos, 80:F47, 1999.) Spontaneously igniting, biogenic gases are found in many marshy places. These eruptions were observed on an English mud flat in 1902. Comment. When bogs breathe ...