... 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 http://www.aros.net/angio/pistuff/piquery At this Web site you can enter your Social Security Number (or telephone number, etc.) and discover if it appears among the first 1.25 million digits of pi. Perhaps when God was designing the Universe and was contemplating what the value of pi should be, he put your number somewhere in this transcendental number! (Anonymous; New Scientist, p. 64, January 4, 1997.) Comment. Of course, pi has as many digits as you care to compute (at least we think it does!) If your number is not among the first 1.25 million digits, it will certainly appear somewhere later. It's just that you are not first in line! From Science Frontiers #110, MAR-APR 1997 . 1997-2000 William R. Corliss ...

... 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 Target: Greenland Reports of recent large meteors and suspicious craters are plentiful in back issues of this newsletter. (SFs #93, #102, #103, #110, to name a few) Here is another. December 9, 1997, Greenland. At 5:11 A.M ., crews of three trawlers at widely separated sites off south Greenland reported "a blazing fireball that turned night into day." At a distance of 100 kilometers (62 miles), the flash was compared to that from an atmospheric nuclear explosion. Danish officials dismissed the possibility of a surreptitious nuclear test. The U.S . Air Force stated that the object was neither a reentering spacecraft nor artificial space debris. Some seismic tremors also emanated from Greenland, so the impact of a large meteorite is suspected. Based on the visual sightings and a moving object caught on a parkinglot surveillance camera in Nuuk, Greenland's capital, the probable impact point is at 61 25' N., 44 26' W. Efforts to locate the meteorite will have to wait for favorable weather. The supposed meteor was not a small object. The Niels Bohr Institute in Copenhagen compared it to the Kap York meteor that fell south of Thule, Greenland, in prehistoric times. Pieces of this iron meteorite aggregating 50 tons have been collected. (Sawyer, Kathy; "Fireball a Mystery till Thaw," Charlotte Observer, December ...

... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Riddles of the sphinx And they went forth and multiplied Kennewick man: a 9300-ear-old caucasian skeleton in north america? Astronomy Lunar landslide lights Greenwich late time Too much order in the early cosmos Biology Biology lite Biology heavy Geology Wind-driven ice sheets in death valley The nodoroc Geophysics Rogue wave smashes the queen elizabeth ii Unclassified The return of the monolith Indeterminacy in computers ...

... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Earth's Shifting Crust Our title is identical to that of a book published by C.P . Hapgood in 1958. He also wrote The Path of the Pole (1970). Several other authors have also proposed that sudden slippages of the earth's crust caused wild climate fluctuations in the past with devastating biological consequences -- in particular, all those quickfrozen mammoths in Siberia. These poleshift scenarios coming from thinkers swimming far out of the scientific mainstream have been studiously ignored in a "new" and well-publicized pole-shift theory recently appearing in Science. The "new" theory relates to an old (534-millionyears-ago) crustal slippage, whereas Hapgood was talking about a cataclysm within the last 10,000 years or so. Nevertheless, it would have been nice to see Hapgood's earlier work acknowledged. Four features of this "new" proposal make it more palatable than Hapgood's to today's geologists and geophysicists: Two of the "new" authors, J. Kirschvink and D.A . Evans, are at the prestigious California Institute of Technology, while Hapgood was a PhD-less history professor at Keene State College. Status is important when theorizing. Kirschvink et al propose a scientifically acceptable mechanism for the onset of rapid crustal slippage. They visualize a huge chunk of the seafloor suddenly foundering and thereby changing the planet's mass distribution. This imbalance caused ...

... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Continent Lost In The Pacific Ocean Our title is also the English title of a book published recently in Japan. The subtitle quoted below implies that we are not discussing the supposed lost continent of Mu. "Riddle of the Submarine Ruins in the Ryukyu Islands" Rather, the underwater site is that introduced in SF#118 and located southwest of Okinawa. It is hardly the size of a continent. The book's author is Masaaki Kimura, and he has filled his book with stunning underwater photographs and diagrams of this "lost continent." Unfortunately, except for a Contents page, which is in English, the rest of the book is in Japanese. We'll have to settle for the Contents page, which is rather revealing. Human Beings under the Sea The Submarine Ruins Discovered Were the Ryukyu Islands a Continent? Discovery of a Civilization Lost in the Sea An Ancient Civilization in Southernmost Japan A Continent Lost in the Pacific Ocean Submersion of the Land and Tectonics of the Earth Hypotheses for the Land Lost in the Pacific Ocean A Utopia Sunk in the Pacific Ocean Pretty inflammatory stuff, so much so that we must be wary indeed! One of the drawings in our photocopy is good enough to reproduce here. The immediate impression, as with many of the underwater photographs, is that surely this structure is artificial. But we must remember that Nature has her playful moods and has deposited simulacra everywhere, perhaps even ...

... This is not a hoax! Melanoma sniffing. In 1989, the Lancet , a respected British medical journal, published an article relating how a female dog, half border collie, half doberman, sniffed out a spot of melanoma on a woman. In fact, the dog ignored all of the other moles on the woman and even tried to bite off the melanoma. Melanoma is the most dreaded form of skin cancer, so this bizarre report stimulated A. Cognetta, an American dermotologist, to try an experiment. First, another dog, named George, was trained to find tubes containing melanoma samples, which he did correctly 99% of the time. Next, a human with active melanoma was enlisted. Several bandages were placed on the subject's body including one over the melanoma site. Once again, George was almost 100% accurate in his diagnosis. Subsequently, George successfully identified malignancies on other patients. (Walker, Kenneth; "George the Dog Helps Take a Bite out of Skin Cancer," Chicago Sun-Times , September 6, 1998. Cr. J. Cieciel.) Seizure sniffing. An English woman subject to epileptic seizures never goes anywhere without her dog Rupert. Rupert has a nose for the odor that precedes epileptic seizures in humans. He barks about 40 minutes before the actual seizure, giving the woman a chance to get to a safe place. Of course, Rupert barks at other things, too, but his seizure bark is noticeably different. (Walker, Kenneth; "Mutt Gives Epileptic Advance Warning on Seizures," Chicago ...

... , like those on a sailor's biceps, nor are they on parts of the body usually displayed. What is most interesting are their locations; some groups are placed at traditional Chinese acupuncture points. Bolstering this suspicion is the determination from computer tomography (noninvasive imaging) that the Iceman suffered from arthrosis of the lumbar spine. The Iceman's body is punctured at the points usually used by acupuncturists to treat this condition! "These findings raise the possibility that the practice of therapeutically intended acupuncture originated long before the medical tradition of ancient China (approximately 1000 B.C .) and that its geographical origins were Eurasian rather than East-Asian, consistent with far-reaching intercultural contacts of prehistoric mankind." (Dorfer, Leopold, et al; "5200-Year-Old Acupuncture in Central Europe?" Science, 282:242, 1998.) From Science Frontiers #121, JAN-FEB 1999 . 1999-2000 William R. Corliss ...

... Archea collected from a hot vent 3 kilometers deep in the Pacific has been sequenced. Biologists were taken aback. Methanococcus jannaschii , as it has been dubbed, possesses 1738 genes, of which 56% are entirely new to science. Many of these genes do not look anything like those found in the prokaryotes and eukaryotes. In a word, they seem "alien." (Morell, Virginia; "Life's Last Domain," Science, 273:1043, 1996.) How alien? Well, they are so tough that they could have arrived from Mars on a meteorite. Millions of years of residence in a meteorite edging its way toward a rendezvous with earth mean nothing to the Archea. They have even been cultured from the interior of a salt crystal 200 million years old. (Fanale, Fraser; "Martian Substances," Science, 275:321, 1997.) From Science Frontiers #112, JUL-AUG 1997 . 1997-2000 William R. Corliss ...

... of In Situ Methane Quantities in a Large Gas-Hydrate Reservoir," Nature, 385:426, 1997. Also: MacDonald, Ian R.; "Bottom Line for Hydrocarbons," Nature, 385:389, 1997.) Comment. Methane is well-known as a "greenhouse gas." If really large "burps" were released, climatic changes would probably ensue. Unfortunately, gashydrates are rather unstable. What would happen if a large asteroid slammed into the Blake Ridge? Huge quantities of methane would disgorge into the earth's atmosphere. The climate changes might be disastrous for fauna (like the dinosaurs!) and flora. The heavily shaded area of the Blake Ridge (area = 26,000 km2) contains gas-hydrates and free gas. Drill sites 995 and 997 are also indicated. From Science Frontiers #111, MAY-JUN 1997 . 1997-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Foo Fighters Recalled U.S . airmen called them "foo fighters." These still-unexplained luminous phenomena seem to have been filed away and forgotten by science. It is not that good evidence is lacking. Perhaps the foo fighters cannot be encompassed by recognized laws of physics! We last reported on them in 1992 (SF#83), when some old Air Force records turned up. We now re-resurrect the foo fighters with an Associated Press Bulletin from 1945. "AMERICAN NIGHT FIGHTER BASE. France, Jan. 1. -- The Germans have thrown something new into the night skies over Germany -- the weird, mysterious "foo-fighter," balls of fire that race alongside the wings of American Beaufighters flying intruder missions over the Reich. "American pilots have been encountering the eerie "foo-fighter" for more than a month in their night flights. No one apparently knows what this sky weapon is. "The balls of fire appear suddenly and accompany the planes for miles. They appear to be radio-controlled from the ground and keep up with planes flying 300 miles an hour, official intelligence reports reveal. "There are three kinds of these lights we call 'foo-fighters,'" Lieut. Donald Meiers of Chicago said. "One is red balls of fire which appear off our wing tips and fly along with us; the second is a vertical row ...

... H-bombs. Missing matter . Natural nuclear reactors are finicky. There may be many star-sized, non-luminous objects out there that were never ignited and that we cannot see through our telescopes. (Herndon, J. Marvin; "Examining the Overlooked Implications of Natural Nuclear Reactors," Eos, 79:451, 1998.) Comments. Two additions to Herndon's list. Evolution of terrestrial life . Nuclear reactors produce copious mutagenic radiation. They could have accelerated the evolution of life, especially during the Cambrian Explosion. (See SF#32) Thermal plumes . Deep-seated natural nuclear reactors may create the thermal plumes said to be responsible for such surface hot spots as Iceland and Hawaii. Disposition of six of the Oklo 2-billion-year-old natural nuclear reactors. (From: Anomalies in Geology). From Science Frontiers #121, JAN-FEB 1999 . 1999-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Nodoroc "Buried behind Phil Chandler's farm three miles east of Winder [Georgia], underneath some scrawny trees and unearthly black mud, is a mystery or terror perhaps thousands of years old. .. .. . "' It's real dangerous,' said Fred Ingram, former director of the Barrow County Historical Society. "If you step off in some of that soupy mess, you're gone.' "Before the Harrises drained and worked the land, the area was more than a geographical oddity. It was a sinister place with a reputation among American Indians and early settlers as a burning lake of fire. "' The Indians called it Nodoroc,' said Mr. Chandler, leading a recent tour along the edges of the pit, 'But what they meant was Hell.' "Although few signs remain today, the area was once a bubbly cauldron, a mud volcano from which a steady stream of foul gases ignited into an eerie plume of black smoke that could be seen for miles, according to numerous accounts from white settlers and Creek Indians inhabiting the area in the late 1700s. .. .. . "The Nodoroc slowly declined in intensity, and one day in the mid1800s it blew up in an awesome explosion of mud and heat and expired." (Stenger, Richard; "Histories of Area Describe Terror," Augusta Chronicle, June 11, 1996 ...

... 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 Exotic Seismic Signals Not all terrestrial tremors emanate from buckling crust and slipping tectonic plates. The crashing of large waves on a seashore sends "microseisms" to sensitive instruments hundreds of kilometers away. The bubblings of Old Faithful geyser give rise to an enduring and engaging "harmonic tremor." As for the more "exotic" sources of seismic signals, they had an entire session devoted to them at the Fall 1996 meeting of the American Geophysical Union. Here are two of the unusual seismic events presented there. July 10, 1996. Yosemite National Park. "At 6:52 pm PDT Wednesday, July 10, 1996, a large block of granite, with an estimated mass of 80,000 to 184,000 tons, detached from the cliff between Washburn Point and Glacier Point, in Yosemite Valley. The rock mass subsequently launched from the cliff and free-fell ballistically an estimated 550 m before impacting approximately 30 meters from the base of the cliff in the Happy Isles area of the valley floor in Yosemite National Park...This rock fall was well recorded by 3 UC Berkeley (BDSN) and Caltech (TERRAscope) broadband seismographic stations and 15 shortperiod seismographic stations (operated by the USGS in Menlo Park and the University of Nevada, Reno). In fact, it is the largest vertical rock free-fall ever recorded seismically and it registered on seismographs up to 200 km distant." (Uhrhammer, ...

... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where do all good deleted data go?It takes just a touch of a button to consign once-valued words and figures to virtual oblivion. If you think this is cruel and heartless, a Buddhist monk in Japan has established a virtual Information Temple. S. Ishiko, the chief priest, will take applications to have memorial services performed for not only deleted data (whether intentional or not) but also "lost" data. He also offers spiritual counseling at his Internet site: http://www.thezen.or.jp (Anonymous; "Feedback," New Scientist, p. 104, June 7, 1997.) From Science Frontiers #113, SEP-OCT 1997 . 1997-2000 William R. Corliss ...

... So, B. Nodland and J.P . Ralston stirred up a hornets' nest this past spring when they published a paper that began with this paragraph: "Polarized electromagnetic radiation propagating across the Universe has its plane of polarization rotated by the Faraday effect. We report findings of an additional rotation, remaining after Faraday rotation is extracted, which may represent evidence for cosmological anisotropy on a vast scale." (Ref. 1) Most inflammatory was their claim that the plane of polarization of the radio waves rotated more along a particular direction [axis?]; specifically, along a line connecting the constellations Aquila and Sextans. (Ref. 2) Only a few days after the NodlandRalston paper was published, it was blasted in Science. The major complaint was that their data were old and incomplete, since they derived mainly from observations made prior to 1980. (Ref. 3) Indeed, a similar study using more recent measurements but fewer radiation sources seems to refute the NodlandRalston claim of a preferred direction in the cosmos. (Ref. 4) Nodland and Ralston disagree with the charges and the implications of the other study. It will be a while before this is all sorted out. The paradigm that Nodland and Ralston are challenging is deeply entrenched and of great philosophical import. (There's nothing "special" in the cosmos, especially humans!) References Ref. 1. Nodland, Borge, and Ralston, John P.; "Indication of Anisotropy in Electromagnetic Propagation over Cosmological Distances," Physical Review Letters, 78:3043, 1997. ...

... -a -whole might be lurching toward other goals or, perhaps, toward nowhere in particular. Enough philosophy! A team of Australian astronomers, led by J.K . Webb, has been trying to determine if the famous fine-structure constant of physics has really remained constant throughout the 12-billion years or so of the universe's history. The fine-structure constant is dimensionless and almost exactly equal to 1/137. (Why 137? That's another question!) Anyway, the Australians got a good fix on the constant's value 2 billion years ago by measuring the composition of the nuclear waste produced by the Olko natural nuclear reactors in Gabon, Africa. It hasn't changed since then. The spectra of distant quasars 7 billion years old also signaled no change. But more-distant and, therefore, supposedly older, gas clouds have suggested that a slightly smaller fine-structure constant held sway then. No known experimental error can account for this difference. "If confirmed, would Webb's findings eventually be explained by a deeper theory, vindicating physicists' faith in a uniform nature? Or would they mean that we live in a frighteningly arbitrary and variegated cosmos, where huge swathes of space abide by alien principles?" (Musser, George; "Inconstant Constants," Scientific American, 279:24, November 1998.) Comment. Even as we write, some distant part of the cosmos may be coming into estrus for life-as-we-do-not-knowit. See SF# ...

... their mortar, display various symbols as well as their makers' fingerprints. N. Steede collected a "small" sample of these bricks (4612 bricks weighing in at 21 tons) and photographed the inscriptions that decorated some 1,500 of them. Many bear what are interpreted as "masons' signs". These turn out to be virtually identical to those found on Roman bricks in the Old World. Conclusion: "The illustrated bricks of Comalcalco are pieces to a grand puzzle, whose completed, final image may reveal a Roman Christian presence in the Americas a thousand years before the arrival of Columbus." (Ref. 1) Some typical mason's signs found on Roman bricks (left) and Comalcalco bricks (right). Many additional similarities are found between mason' ... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Inscribed Bricks Of Comalcalco Comalcalco is a Mayan site in Tabasco, southeastern Mexico. It is unusual as Mayan sites go because its 375 structures, including a large stepped pyramid, incorporate millions of fired bricks. Many of said bricks, when separated from their mortar, display various symbols as well as their makers' fingerprints. N. Steede collected a "small" sample of these bricks (4612 bricks weighing in at 21 tons) and photographed the inscriptions that decorated some 1,500 of them. Many bear what are interpreted as "masons' signs". These turn out to be virtually identical to those found on Roman bricks ...

... carbon dating (SF#98), we now look at the potential distortion caused by the ingestion of primordial carbon (carbon-13) by plants and animals. Primordial carbon may come from limestone or natural gas welling up from the earth's interior. Modern life forms that metabolize primordial rather than atmospheric carbon dioxide, with its cosmic-ray produced carbon-14, will appear extremely old when carbon-dated. For example, M. Grachev et al carbon-dated flatworms and a sponge collected from a bacterial mat near a thermal vent 420-meters deep in Lake Baikal. The apparent ages of these living organisms ranged from 6860 to 10,200 years. (Grachev, M., et al; "Extant Fauna of Ancient Carbon," Nature, 374: ... ripe old age of 35,000 in a few months. (All this was part of a cancer-research project.) Of course, most carbon-dating in archeology is not endangered by the primordial-carbon problem. But, as K. Turteltaub, "father" of the Lazarus mice, commented: "We've joked about sprinkling them [the mice] around archeological sites just to confuse everyone." (Weisman, Jonathan; "Of Lazarus Mice and Carbon-14," Tri-Valley Herald , July 12, 1993. Cr. R. Berg) From Science Frontiers #99, MAY-JUN 1995 . 1995-2000 William R. Corliss ...

... Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Blondes In Ancient China Authorities on ancient Chinese civilization have usually considered it to have been completely isolated from European influences for millennia -- a homegrown culture characterized by unique cultural and technological innovations. This classical picture of ancient China will have to be modified after the recent unearthing of mummified Caucasians up to 4,000 years old in China's northwestern province of Xinjiang. These dried corpses have the long noses, deep-set eyes, and long skulls typical of Caucasians. Some even have blonde hair! Some 113 such corpses have already been excavated at Qizilchoqa, one of four sites discovered so far. It is clear that we are dealing with permanent settlements and not merely a few lost Europeans. "Besides ... riddle of their identity, there is also the question of what these fair-haired people were doing in a remote desert oasis. Probably never wealthy enough to own chariots, they nevertheless had wagons and well-tailored clothes. Were they mere goat and sheep farmers? Or did they profit from or even control prehistoric trade along the route that later became the Silk Road? If so, they probably helped spread the first wheels and certain metal-working skills into China." V. Mair, a professor of Chinese at the University of Pennsylvania, has been spearheading the research on these mummies for the U.S . He asserts that, contrary to the general belief, there was a substantial two-way, east-west flow of ideas and inventions beginning at least 3, ...

... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Emf fertilizer?In 1986, the U.S . Navy began operating a 90-kilometer-long radio antenna stretching pole-to-pole through a Michigan forest. Broadcasting at only 76 hertz, this long antenna can communicate effectively with submerged submarines. Although the antenna produces electromagnetic fields about the same as those from a large household appliance, some of the trees adjacent to the antenna have enjoyed an unexpected spurt in growth, according to D. Reed and G. Mroz of the Michigan Technological University. "The researchers have been gathering data on the growth of trees since 1985, making measurements at two sites, one near the antenna and the other 50 kilometers away. The results seem to suggest that the electromagnetic field has a subtle influence on the forest. They found that two species of trees, northern red oak and paper birch, do not seem to be influenced by the antenna at all. But red pines near the antenna grew taller than red pines at the distant site, while aspen and red maple grew thicker than their counterparts further off." (Kiernan, Vincent; "Forest Grows Tall on Radio Waves," New Scientist, p. 5, January 14, 1995) Trees are not the only plants affected. Algae in the upper Ford River, where the field is only 10% as strong as that near the antenna, increased chlorophyll production sharply after the antenna started operation. The cause ...

... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fungal phantasms Recently, it was seriously suggested that people see ghosts in haunted houses because they ingest spores broadcast by psychoactive fungi growing on the old walls! This amusing idea turns out to be an old one, having appeared in 1883 in the Gentleman's Magazine. (Goodman, Arthur; "Ghost Potions," New Scientist, p. 54, July 8, 1995.) Comment. Seems like the skeptics are grasping for straws? Or should we say "ectoplasm?" From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 101: Sep-Oct 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "ALMOST INCONCEIVABLE" CHANGES IN THE GEOMAGNETIC FIELD A decade ago, a trio of geophysicists published a group of papers based on their measurements of the remnant magnetism of the 16-million-year-old layered lava flows at Steens Mountain, Oregon. (SF#45) At that time, they claimed that these finely bedded lava flows testified that, during a field reversal, the earth's field swung around at the astonishing rate of 3 per day! This rate is about one thousand times the current rate of polar drift. Mainstream geophysicists could not believe the 3 /day figure because it implied incredibly rapid changes in the flow of those molten materials within the earth that supposedly generate the geomagnetic field. The Steens Mountain data were "tabled"; that is, dismissed. The three researchers, though, continued their labors at Steens Mountain and have now offered additional, even more impressive data. They now find that the geomagnetic field probably shifted as much as 6 in a single day. Their work has been carried forward so professionally and meticulously that other scientists are finding their conclusions harder and harder to dismiss. Instead, the search is on for explanations of the rapid field changes. Three possibilities have been advanced -- all of them unpalatable to geophysicists: The Steens Mountain rocks are not faithful recorders of the main geomagnetic field. Should this be actually so, the whole field of paleomagnetism, including plate tectonics ...

... Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fruit Dupe Hakea trifurcata is a forlorn-looking shrub growing on rocky terrain in Western Australia, where it reaches a height of 2 meters. The fruits of this plant are enjoyed by the white-tailed black cockatoo -- if it can identify them ! Hakea trifurcata , you see, grows fruit that looks like its leaves, and this is very frustrating to the white-tailed black cockatoo: "This shrub according to plant ecologist Byron Lamont of Curtin University of Technology in Perth, exhibits the first known case of self-mimicry in a plant: to avoid losing valuable seeds to predators, it disguises some of its leaves as fruits. Young plants produce only the long, needle-shaped leaves. But mature five-year-old shrubs also grow broad leaves that cluster around the slightly smaller, almost identical-looking green seed-filled fruits." When offered branches stripped of real leaves and bearing just fruits, the cockatoos quickly demolished them. Normal branches bearing both leaves and fruit were attacked at first -- especially the larger leaves. But when the cockatoos found themselves duped a large proportion of the time, they gave up in obvious frustration. (Anonymous; "Fruit Dupes," Discover, 15:16, August 1994.) Comment. An even more amazing case of plant mimicry occurs among Passiflora species, which craft precise copies of the eggs of a butterfly, whose larvae decimate these plants. The butterflies see the fake eggs and go look for places to lay their eggs where there is less ...

... Science Frontiers ONLINE No. 103: Jan-Feb 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Target: south america August 13, 1930. Upper reaches of the Brazilian Amazon. In SF#102, we provided a short notice of a probable large bolide impact near Brazil's border with Peru. Apparently, this event resembled the much more famous 1908 Tunguska blast. More details have now been provided by M.E . Bailey et al in the Observatory, as based on old accounts that appeared in the British Daily Herald and the papal newspaper L'Osservatore Romano. Bailey et al write: "The Daily Herald report [March 6, 1931] describes the fall of 'three great meteors...[which]...fired and depopulated hundreds of miles of jungle...The fires continued uninterrupted for some months, depopulating a large area.' Unfortunately, although the fall is said to have occurred around "8 o'clock in the morning" and to have been preceded by remarkable atmospheric disturbances (a 'blood-red' Sun, an ear-piercing 'whistling' sound, and the fall of fine ash which covered trees and vegetation with a blanket of white), few details are provided that constrain the time and place of the event. Nevertheless, the story refers to an article in the papal newspaper L'Osservatore Romano [March 1, 1931], apparently written by a Catholic missionary 'Father Fidello, of Aviano', and it is to this ...

... Science Frontiers ONLINE No. 96: Nov-Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Unusual Lunar Halo July 29, 1993. North Pacific Ocean. From the m.v . BP Admiral . "At 1045 UTC a large, very well defined and complete halo was seen around the 10-day-old moon. Vertical angles were taken by sextant while horizonal angles were found by gyro repeater. ". .. the area inside the halo was inky black with the inner edge of the halo being very clear cut and well defined; a 'spiked' effect was seen on the outer edge." (Ronald, J.M .; "Halo," Marine Observer, 64:105, 1994.) Comment. The angular diameter of the halo is normal, but the inky black interior is very rare. The same dark effect is sometimes seen between primary and secondary rainbows and has an acceptable explanation. However, the radial spokes are not accounted for by halo theory. From Science Frontiers #96, NOV-DEC 1994 . 1994-2000 William R. Corliss ...