278 results found.
... 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 The Florida Rogue Wave Very little has appeared in the scien-tific literature about the huge wave that crashed ashore at Daytona Beach, Florida, on July 3, 1992. Apparently, the scientific community is happy with the landslide explanation, but there may have been a different sort of disturbance. First, the basic data: "A wall of water as much as 18 feet high rose out of a calm sea and crashed ashore, smashing hundreds of vehicles parked on the beach and causing 75 minor injuries, officials and witnesses said. "An undersea landslide apparently caused the 27-mile-long rogue wave late Friday night, a federal seismologist said yesterday." The seismologist cited, F. Baldwin from the U.S . Geological Survey, estimated that the wave was 18 feet high and 250 feet wide. (Anonymous; "Rogue Wave Smashes into Beach," Hawaii Tribune-Herald , July 5, 1992. Cr. H. DeKalb.) Rumors of a falling object. The landslide theory sounds good, but there have been rumors that another phenomenon was involved. B. Stein, of Orlando, has reported the testimony of a boater, who was far offshore at the time: ". .. the boater came forward with the information that, shortly before the time of the wave, he was in his boat about eight miles offshore. He watched as a distant object approached across the sky ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf084/sf084g12.htm
... similar to those of Pedomicrobium occur as three-dimensional facsimiles in highpurity gold in and on placer gold particles from Lillian Creek, Alaska." In short, bacteria help create placer gold deposits. The author believes that bacterioform gold is widespread. (Watterson, John R.; "Preliminary Evidence for the Involvement of Budding Bacteria in the Origin of Alaskan Placer Gold," Geology , 20:315, 1992.) Microorganisms and iron deposits. At least 500 million years ago, filamentous bacteria and/or fungi were already playing vital roles in the deposition of iron from hydrothermal fluids. Abundant microbial filaments indicative of biological activity are found in the Cambrian ironstones in Australia's Thalanga deposit. (Duhig, Nathan C., et al; "Microbial Involvement in the Formation of Cambrian Sea-Floor Silica-Iron Oxide Deposits," Geology , 20:511, 1992.) Deeper implications. The formation of placer gold and ironstone are only part of the repertoire of deep-living microorganisms. A five-year survey of microbial life conducted by the U.S . Department of Energy (DOE) found that bacteria were everywhere -- even 3 kilo meters deep in a Virginia borehole. F. Wobber, the DOE manager of the project underscored the mystery and probable importance of "biogeology": "Besides asking how subsurface bacteria affect geology, he wonders how geologic processes could have carried living things so deep into the planet. 'When you find these organisms at great depths,' he says, 'you have to ask: Where did they come from ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf085/sf085g10.htm
... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Un Oggetto Misterioso April 22, 1966. Genova and Novi di Modena, Italy. We have just learned of this "mysterious object." Translation provided by P. Cortesi. "Near the star Alfa Hydrae (see illustration) appeared a perfect bright sphere, about 5 apparent diameter; it became largest in a few seconds, then it grew thinner and appeared like a line. In 45 minutes, its brilliance diminished progressively, and it disappeared at the western horizon. "From astronomical observations by some amateur astronomers were calculated the following data: The object's altitude was between 600 and 650 kilometers above the earth's surface; at its biggest dimension, the object was 95 kilometers wide; it was over the Mediterranean Sea, in a place between Algiers and the Balearic Islands. "No astronomer was able to explain the phenomenon, and the university astronomical review Coelum denominated it 'un oggetto misterioso' (a mysterious object)." (Anonymous; Coelum , 34:36, May-June 1966. Cr. P. Cortesi.) From Science Frontiers #88, JUL-AUG 1993 . 1993-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf088/sf088a03.htm
... Wiltshire enroute from Aqaba to Fujayrah. "At 1745 UTC the glow of bioluminescence was first noted around the hull of the vessel, illuminating the hull above the waterline. The passage of an area of phosphorescent wheels was recorded as follows: 1750: First large wheel of diameter approximately 15 m passed by vessel. Smell of fish in the air. 1806: Continuous wheels passing ves sel 6-8 at a time down either side. The larger wheels were of 15 m diameter and the smaller ones were about 6 m in diameter. 1811: Wheels stopped but bioluminescence still visible around vessel. 1950: Bioluminescence diminished. "The Aldis lamp was shone upon the water but gave no change, then the echo sounder was switched on and off but made no difference either. Several samples of sea water were taken which when shaken contained glowing, luminous, yellow-green specks 1 mm in size. "The wheels were turning in slow clockwise motion and the closest that any came to the ship was about 12 m. There was intense milky-white colouring in the centres which faded to pale white towards the outer limits." None of the radial spokes so common in phosphorescent-wheel reports were remarked in the Wiltshire report. Wheel rotation was also much slower than normal. One scientist supposed that the wheels were caused by fish swimming in tight circles! (Marsh, C.H .; "Bioluminescence," Marine Observer, 62:177, 1992.) Reference. Wheels and a variety of other enigmatic bioluminescent phenomena can be found in Chapter GLW in our catalog ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf085/sf085g12.htm
... Science Frontiers ONLINE No. 80: Mar-Apr 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Unidentified Light Strange optical phenomenon seen off the coast of Trinidad in 1991. January 13, 1991. Caribbean Sea. Aboard the m.v . Trinidad and Tobago . "At 0210 UTC whilst the ship was proceeding eastwards along the north coast of Trinidad, a relatively bright patch was noticed in the almost cloudless sky and was thought to be a cluster of stars. Its bearing was approximately 300 at an elevation of about 50 , and closer inspection through binoculars revealed a rather strange phenomenon, as shown in the sketch. "The bright patch was a perfect circle of a bright, light-blue colour and was transparent as stars could be seen through it. There was also a trail from the circle which looked like the track a disc would describe if it moved through an arc. This trail was also of light-blue colouration but was not nearly so bright as the circle. The entire phenomenon dissipated after about five minutes." (Knight, M.; "Unidentified Light," Marine Observer, 62:22, 1992.) From Science Frontiers #80, MAR-APR 1992 . 1992-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf080/sf080g18.htm
... Science Frontiers ONLINE No. 129: MAY-JUN 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Leaky Seas Just as we have been assured that the Greenhouse Effect is melting the ice caps and that rising ocean levels will force us to abandon our coastal cities, we read the following: Within a billion years, our planet could be as dry and barren as Mars, claim geologists in Tokyo. They have calculated that the oceans are leaking water into the Earth's mantle five times as fast as it is being replenished. It is true that ocean water is being drained away at subduction zones where oceanic crustal plates dive under the continental plates; there's a 10,000-mile unsealed crack there. S. Maruyama and colleagues at the Tokyo Institute of Technology estimate that 1.12 billion metric tons of water leak through that crack in the earth's integument every year. Geologists have always assumed that most of this leakage was returned to the oceans through deep-sea vents and volcanic action, but Maruyama calculates that only 0.23 billion metric tons are recovered. The balance is probably absorbed by lawsonite and other minerals forming 100 kilometers below the surface. (Hadfield, Peter; "Leaky Seas," New Scientist, p. 4, September 11, 1999.) Comment. Does this mean we should cease our attempts to stem global warming? From Science Frontiers #129, MAY-JUNE 2000 . 2000 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient ...
Terms matched: 1 - Score: 97 - 15 May 2017 - URL: /sf129/sf129p08.htm
... Science Frontiers ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Weird Waterspout?Spring 1934. North Pacific. Aboard the freighter Cape Horn enroute to Singapore with a cargo of sawn lumber. G. Craig was the helmsman on the Cape Horn during a powerful storm (winds of Force 9-10, seas running 8 meters high). Even at 4 A.M ., the phosphorescence of the breaking sea made it seem like daylight. At 4:30, Craig saw what he thought was a colossal wave forming. It was so large that the vessel seemed certain to capsize. He thought he was a goner. But, strangely, the "wave" closed with the vessel very slowly and seemed to move independently of the rest of the stormy sea. Craig recalled other strange features of the phenomenon: .. .what I had initially mistaken for wave crests were actually widely-spaced 'geysers', dancing on the upper surface and each rising to a height of about 20 feet. dropping to half of it, then rising again. [See Craig's sketch.] Then, suddenly, when all seemed lost, the wind dropped from a full gale to an eerie calm. The "wave" passed -- gently -- and then the storm resumed. The Cape Horn was drenched, but there had been no shattering of glass nor rending of wood. There was some flooding but no more than usual in very heavy seas. Some of the ...
Terms matched: 1 - Score: 65 - 15 May 2017 - URL: /sf134/sf134p10.htm
... Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Superorganisms: From Simplicity To Complexity Superorganisms are biological entities made up of large numbers of simpler entities that have banded together to perform functions they cannot do as individuals. Termite mounds are often mentioned as superoganisms. But here we examine colonies of organisms that are much simpler and much smaller than termites. What entices the anomalist to attend to superorganisms? Here are two of the several questions superorganisms raise. How do superorganisms evolve properties that its constituent individuals do not possess, such as mobility, unique sensors, and even a modicum of intelligence. Since superorganisms do not reproduce as superorganisms, how can natural selection operate on these superorganisms? Salps. Books dealing with the unexplained sometimes include a photograph of a huge marine creature identified as a sea monster. This famous photo is real and so is the monster in it. But this creature is not reptilian; it is really a salp, a colonial tunicate. Tunicates are tiny, primitive marine organisms usually classified as invertebrates. Some species of tunicates have somehow acquired the habit of aggregating in immense numbers to create long, hollow, snake-like tubes called "salpa." Salps may reach lengths of 45 feet, with diameters of 3 feet. No wonder they are falsely identified as sea monsters. Structurally, the tunicates comprising the salp are embedded in a gelatinous wall facing inward. Each possesses a siphon that pumps nutrient-carrying sea water. Working in unison, the tunicates create a surprisingly strong current of sea water through the tube, and the salp becomes jet- ...
Terms matched: 1 - Score: 50 - 15 May 2017 - URL: /sf133/sf133p08.htm
... Science Frontiers ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects I Must Go Down To The Goo Again!With apologies to Masefield for mangling a line of his poetry. it really is tine to go down to the sea and examine its microstructure. The ocean is not what it seems. When you snorkel in crystal-clear Caribbean waters, you do not sense that you are swimming in a very thin jelly. In reality, ocean water is filled with a complex tangle of microscopic strands and particles of gel. According to F. A zam , an oceanographer at Scripps: It's not in the textbooks or in the classical explanations. The gel's existence fundamentally changes our ideas of the microcosmos in which sea organisms live. It has added another layer of complexity that people are only now starting to consider in the context of whole ocean systems . . Gel is like the dark matter of the sea. While sea gel does not impede the snorkeler, . it does herd microbes into clumps or microniches . which we cannot see either. These microbes. in effect, exist in a tangled. 3-D mesh that affects not only their movements but also those of their prey and predators. A few statistics confirm the amazing complexity of the seawater microcosm and its incredibly high microbe population density. The long strands in the oceanic gel are mostly crosslinked polysaccharides. If the polysaccharides in 1 milliliter of seawater could be placed end-to-end, they would stretch out ...
Terms matched: 1 - Score: 44 - 15 May 2017 - URL: /sf134/sf134p09.htm
... Science Frontiers ONLINE No. 138: NOV-DEC 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When The Antarctic Was Warm The analyses of ocean-floor sediments deposited recently by melting Antarctic ice sheets reveal that these ice sheets are only about 2,000 years old. The evidence is in the rocky debris scraped up from inland Antarctica and then transported out to sea, where it drops to the sea floor as the ice melts. The grains of rock settle into the ocean sediments which contain biological debris that can be carbon-dated. (Marine life beneath the ice sheets is surprisingly abundant and varied despite the near-freezing temperatures.) A somewhat politically incorrect observation appears in this article. However, the news that the Antarctic Peninsula's ice shelves may have come and gone at least once since the end of the last ice age, about 11,000 years ago, suggests that people may not be fully to blame for the disappearance now underway. Supporting foregoing evidence are studies of Antarctic lake sediments and ancient abandoned penguin rookeries. Everything points to a warmer, more humid Antarctica between 2,500 and 4,000 years ago. (Perkins, S.; "Antarctic Sediments Muddy Climate Debate," Science News, 160: 150, 2001.) Comment. The warmer Antarctic just portrayed might explain those old maps, such as that of Piri Re'is, that seem to depict a relatively ice-free Antartica. The more daring of us might postulate sea commerce between South America, southern ...
Terms matched: 1 - Score: 34 - 15 May 2017 - URL: /sf138/sf138p07.htm
... Science Frontiers ONLINE No. 106: Jul-Aug 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Multiple Phosphorescent Wheels This is the sketch mentioned in the Marine Observer article. April 17, 1995. Strait of Hormuz in the Persian Gulf. Aboard the m.v . British Reliance, enroute Fujairah to Kharg Island. Observers: the Master and Second Officer. "At 1525 UTC whilst in the westbound lane of the Traffic Separation Scheme and shortly after settling on a course of 270 , a small amount of blue phosphorescence was noticed in the sea waves ahead (the swell being very low). Suddenly, the wind appeared to blow quite strongly, swirling around the vessel and then for as far as the eye could see and all around the vessel, phosphorescent cartwheels of bright-blue light began forming. The bands of light were roughly 30 cm thick while the maximum diameter of the wheels was 15-18 m. "Their direction of movement seemed random and they were spinning at high speed, some chasing each other, others spinning in opposite directions next to each other, see sketch. "Whole groups dumbbelled around each other, all spinning in apparently random directions. The display lasted for about 18 minutes before petering out." A comment by P.J . Herring of the Southampton Oceanography Centre followed. "A quite extraordinary account of phosphorescent wheels occurring in one of the places where they are most often seen. In the 200, or so, cases of this phenomenon reported in the last 100 years, ...
Terms matched: 1 - Score: 28 - 15 May 2017 - URL: /sf106/sf106p14.htm
... Australians?Ask this question in a college class in archeology and you'll surely receive an "F "! Everyone knows that the first inhabitants of the New World filtered across the Bering Land Bridge and eventually worked their way all the way down to the tip of South America. Perhaps so, perhaps no. Conceivably some venturesome Australian seafarers could have island-hopped across the South Pacific or taken a polar route (as the Vikings did in the north) when the world was warmer. Radical as this notion seems, three classes of evidence hint that Australians may have set foot on South American shores more than 10,000 years ago. Human fossils. As revealed in SF#118, an 11,500-year-old human skull found in Brazil possesses features of South Sea Islanders rather than Asians. Stone artifacts. Scrapers and other simple stone artifacts from Los Toldos Cave in Patagonia, dated as 12,000 years old, are suspiciously similar to late-Pleistocene tools in Australia. (Ref. 1) Cave paintings. At Los Toldos and especially another Patagonian site called Estancia La Maria, there is distinctive artwork virtually identical to some from Australia. Specifically, this artwork consists of "hand negatives" (silhouettes of the artists' hands) and spiral and circular drawings composed of little spots. (Ref. 1) Additionally, a remarkable and entirely distinct form of Australian art -- the famous Bradshaw paintings -- are strangely echoed in the artwork of the Paracus Culture of Peru. (Ref. 2) Two curiously adorned flowing figures from a ...
Terms matched: 1 - Score: 26 - 15 May 2017 - URL: /sf136/sf136p01.htm
... wrote R.W . Service, the poet of the Arctic realms, about the eerie voices of the auroras. The low-frequency sound of the aurora is barely detectable by human ears. It is "felt" more than heard, as Service expressed so eloquently. Some skeptics have maintained that these ethereal sounds do not really exist, but modern instruments confirm that pressure waves are definitely produced in the atmosphere as the auroras weave and dance in the sky. Most auroral sound is in the infrasound range, which begins at the lower limit of human hearing -- about 20 Hertz. Just enough sound energy seeps over the 20-Hz limit to be heard by sensitive human ears during periods of intense activity. Another natural infrasound, weak but continuous, is the "voice of the sea." These sound waves, called "microbaroms," have periods in the 5-7 second range (0 .20-0 .14 Hz), well below the range of human ears. Such low-frequency sounds travel great distances with little attenuation. It is thought, therefore, that the "voice of the sea" is an extended source -- perhaps the collective acoustical signature of all the storms from all the world's oceans. But this is surmise. Actually, the air is full of infra-sound emanating from still-unidentified sources, as indicated in the figure. Humans may not hear infrasound, but a form of "mountain music" seems to have a mysterious, depressing effect upon some of us. Some infrasounds that last for as ...
Terms matched: 1 - Score: 26 - 15 May 2017 - URL: /sf131/sf131p10.htm
... (How did they get there?) Even more interesting are Baikal's thermal vents or chimneys that are otherwise restricted to cracks in the earth's crust in the deep oceans. Further enhancing Baikal's marine attributes, deep drilling and seismic profiles have recently discovered the existence of gas hydrates (methane hydrate, for example). Plumes of gas bubbles have also been detected where gas hydrates have been tectonically disturbed. There are even craters on Baikal's deep bottom where gas hydrates have erupted explosively. (De Batist, Marc, et al; "Tectonically Induced Gas-Hydrate Destabilization and Gas Venting in Lake Baikal, Siberia," Eos, 80:F502, 1999.) Comments. Baikal's gas-explosion craters resemble those on the floor of the North Sea. There, the sudden releases of gases are thought to cause the famous "mist-pouffers" or "fog-guns" heard around the shores of the North Sea. The Barisal Guns (India) and Guns of the Seneca (New York State) probably have similar origins. (GSD1 in Earthquakes, Tides... ) Someone should be listening for "Baikal Guns." See also: BOG BREATH . From Science Frontiers #130, JUL-AUG 2000 . 2000 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 ...
Terms matched: 1 - Score: 24 - 15 May 2017 - URL: /sf130/sf130p08.htm
... Science Frontiers ONLINE No. 136: JUL-AUG 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fiery Exhalations In Wales 1693-1694. Harlech, Wales. The older literature presents several accounts of the strange luminous and incendiary phenomena which we now attend to. The following excerpt is from a 1790 gazetteer, as reprinted in New Scientist. A remarkable phenomenon was seen near this town [Harlech] in the year 1694 and it continued about the space of eight months. It was a livid vapour, or fiery exhalation which seemed to arise from the sea on the borders of Caernarvonshire. It made its first appearance on the side of a bay, a little after sunset, and from thence spread itself in the most gradual manner, until it had set all the houses in the neighbourhood on fire. Not only the ricks of hay, corn, and other forts of grain were destroyed, but also the vegetables in the gardens, for it had so noxious a smell that everything perished where it diffused its baleful infuence. Its effect were severely felt by the cattle to whom it communicated a contagious distemper, by which many of them died. It made its appearance regularly every night, always rising at the same place, nor did it stop its course either by rain or storms. It was sometimes visible by day, but it was very remarkable that it never did any damage except in the night. The flames were in no way violent, but its continuance at last consumed everything that opposed it. Those few scientists ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf136/sf136p10.htm
... Science Frontiers ONLINE No. 128: MAR-APR 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Different Sort of Crop Circle Ball lightning reports are very common, but here is one worth recording because of its unusual physical effects. It was investigated and reported by O. Stummer. In May or June of 1988 or 1989 around 2 P.M . CEST, Mr. Alois Fuehrer, a farmer of 38 years from Jungschlag, a small village south of Ottenschlag, northern Lower Austria, 850 meters above sea level, returned early from fieldwork because a heavy thunderstorm moved in from the north-west. Fuehrer stood in the open on a wooden plank at the rear of the diesel tractor driven by his father. The vehicle had passed the last Ottenschlag houses southbound, when he noticed a falling object. It was round, 20 centimeters across, and "seemed to come down like a toy balloon", vertical, soundless, without rotation. It was brilliant white, a steady light, and had "something like a smoke trail". Only 20 to 30 meters to the right of the tractor and of the road, after 4 to 6 seconds, the object hit the surface of a green summer barley field, flashed up and "exploded with a loud, very high pitched bang". Mr. Fuehrer said "this was no thunder", and noticed no heat or pressure wave. However, what he felt caused panic--a tingling, and his hairs stood on end on his head ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf128/sf128p11.htm
... Science Frontiers ONLINE No. 129: MAY-JUN 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Contagious St. Elmo's Fire February 8, 1999. North Sea. Aboard the m.v . Repulse Bay , enroute Rotterdam to hamburg. Whilst the vessel was in the German Bight, in position 53 57' N. 07 08' E, a classic example of St. Elmo's fire was observed at 0230 UT C. A high-pitched buzzing sound was heard on the corner of the bridge wing, and what seemed to be a glow was also present. Observers were able to pick up the static and saw short flame-like 'tufts' of blue and violet appear on the ends of their finger-tips, as if the fingers had ignited. The 'flames' were able to be passed from person to person, and were even placed upon another observer's forehead! There were no electrical storms in the area but there was a mixture of hail and snow falling at the time. Two of the observers experienced strong electrical shocks from each other, and also electric shocks each time snow landed on their skin -- a very peculiar experience! (Byrne, K.; "St. Elmo's Fire," Marine Observer, 70:6 , 2000.) St. Elmo's fire experienced atop pikes Peak in Colorado. (From: Lightning Auroras .. .) From Science Frontiers #129, MAY-JUNE 2000 . 2000 William R. ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf129/sf129p12.htm
... sediments. This is doubted because fish are very scarce in the areas where whitings occur. Another thought was that calcium carbonate was being precipitated directly from the ocean water. Chemical tests showed this to be impossible. A new theory has schools of sharks intentionally raising clouds of bottom sediments to blind fish. The sharks then move in with their electrosensitive organs, which are unaffected by the "white-out," and pick off the helpless fish.(Copley, Jon; "Sneak Attack," New Scientist, p. 22, December 2, 2000.) Comment. It would take a lot of sharks to stir up 200 square kilometers of sediment! And why bother if fish are scarce where whitings are seen? A similar phenomenon is seen in the sudden whitenings of the Dead Sea. Details in GHC4 in Earthquakes, Tides,... 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. ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf135/sf135p13.htm
... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bird's Eggs As Information Carriers Bird communication may be more subtle than trills and squawks. Take, for example, the observation that the last egg laid by several species is distinctly lighter in color than the others in the clutch. This late-egg phenomenon is seen in the sparrows especially (House, Tree, Dead Sea, Grey-Head, and others). Common Terns, Fieldfares, Herring Gulls, and Moorhens also lay pale last eggs. Since the changes in the egg production line exact a cost in the females, there might be an adaptive explanation for the phenomenon; that is, the final paler egg may lead to increased survival of the participating species. To illustrate, in 1980, Yom-Tov suggested that: .. .this last odd egg might have evolved as a signal to potential brood parasites that the female has finished laying the clutch and has begun incubation. If a parasite lays its egg after incubation has commenced, then it would be unlikely to hatch, hence the potential parasite would benefit from heeding such a warning signal, if it could then find an alternative host nest where incubation had yet to commence. The signaling host would also benefit from avoiding the costs of warming an extra egg [the parasite's ] for some of the incubation period, costs that can be considerable, as well as the possible cost of having to rear an extra chick. G.D ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf137/sf137p05.htm
... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Ship-swallowers It's happened hundreds of times, and thousands of sailors have lost their lives. The killers are giant, usually solitary, waves that seem to come out of nowhere. These monster walls of water appear in seas that are rough but not fearfully so. Suddenly. a ship will find itself in a deep trough. Then conies a wall of water. 50-100 feet high. (34 meters is the biggest reliable measurement.) The vessel is flooded, perhaps its back is broken. It sinks like a rock without even sending a distress signal. Another ship has been devoured by a rogue wave. Giant solitary waves are usually preceded by deep troughs. as seen in this sketch of a vessel in the notorious A gulhas Current off the coast of South Africa. (From: Earthquakes. Tides....) Just between 1969 and 1994. 60 supercarriers were lost due to sudden flooding. Of this number, 22 were apparently swallowed by rogue waves. The rogue waves appear unexpectedly. They dwarf all surrounding waves. For a long time, the rogues were said to be just chance additions of two smaller waves. But they are too big and occur too frequently to be statistical flukes. In addition, statiticians have trouble in accounting for the fabled and feared "three sisters" -- three massive waves in succession. Consequently, scientists have retreated to a now-familiar ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf137/sf137p12.htm
... DEC 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remarkable Animal Talents And Capabilities Looking backward with genital photoreceptors. Photoreceptors are sensitive to light but do not produce images. They are found in many groups of animals. Even humans possess photoreceptors besides their eyes; specifically, in the pineal gland and, perhaps, the knees. (SF#116, SF#117) The pineal gland (our "third eye") may have registered photons at some stage in our evolution, but it is now useless or adapted to other purposes. The arthropods, however, still find photoreceptors useful. Crayfish have them on their abdomens, where they initiate an escape response when illuminated. Additionally, the blind shrimp that collect around the glowing deep-sea vents have photoreceptors perched on their backs, presumably to guide them to their prey located around the luminous vents. Recently, the Japanese yellow swallowtail butterflies were discovered to sport photoreceptors on their genitalia. These I are used during mating to confirm the position of the female's ovipositor.(Arikawa, Kentaro; "Hindsight of Butterflies," BioScience, 51:219, 2001.) Barn-Owl auditory neurons multiple signals. Barn Owls can locate rustling mice in the dark with high precision. They discern their prey by sound rather than light. To achieve the high accuracy needed to home in on small rodents in the black of night, their ears are slightly offset so that they can draw a bead by using microsecond time-of-arrival differences in the sounds coming from ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf138/sf138p04.htm
... Science Frontiers ONLINE No. 128: MAR-APR 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Lurch of Death Two geophysicists, W. Sager and A. Koppers, have plotted 27 ancient pole positions dated between 120 and 30 million years ago. Using rock samples brought up from submerged Pacific sea-mounts, they find that the earth's magnetic poles shifted 15-20-deg about 84 million years ago. The north magnetic pole was not slowly drifting, it was lurching. It took just a couple million years to shift 700 miles or more; that's more than ten times the rate of continental drift. The earth from afar must have seemed to be a disturbed top---on a geological time scale, of course! What could have perturbed the earth? One suggestion blames a sudden shifting of the planet's mass distribution, some sort of subterranean indigestion, like a subducted ocean plate suddenly plunging through into the lower mantle. (Kerr, Richard A.; "Did the Dinosaurs Live on a Topsy-Turvy Earth?" Science, 287:406, 2000.) The biological consequences of such a sudden tilting could have been severe. The event -- known as rapid true polar wander -- may have been accompanied by worldwide volcanic upheavals and reorganization of tectonic plates that would have played havoc with anything living in the Late Cretaceous period, 65 million to 99 million years ago. Although the notion that an asteroid was the immediate cause of dinosaur extinction about 65 ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf128/sf128p08.htm
... National Forest. A few reports even come from the plains east of the Front Range. Coloradans have reported seeing the animals walking along a stream below Loveland Pass, drinking from a pond in the Lost Creek Wilderness, running after deer in the Roosevelt National Forest, chasing cars near Gypsum and roaring at hikers, campers and fishermen in various locations. The reports have come from scientists, wildlife biologists and elk hunters. Surely, this enough to convince everyone of Bigfoot's reality. Not so! To recognize Bigfoot officially scientists must have a living specimen, a corpse, or at least an good skeleton. They do not. Even though there are thousands of Bigfoot sightings recorded continent-wide plus hundreds of casts of huge footprints, these are not enough. Just as with UFOs and sea monsters, fraud and misidentification abound in that field of endeavor called "cryptozoology." However, bigfoot researchers do have one advantage over UFO and Loch Ness aficionados ; namely, those hundreds of casts of outsized footprints. Some are so detailed that the skin's ridge patterns are clearly apparent. These ridge patterns (" dermatoglyphs") do not seem to match those of human feet or any of the other great apes. (SF#129) This is all very good, and some scientists are impressed by the sheer magnitude of the evidence. As G.W . Gill, a professor at the University of Wyoming, comments: "Either the most sophisticated hoax in the history of anthropology has gone undiscovered for centuries, or the big ape exists ." [Of course ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf134/sf134p06.htm
... matter". Astronomers are sure it exists because its presence, though unseen, explains two anomalies: The high circular velocity of the stars and gas in the outer reaches of galaxies. Circular velocities should decrease with distance from the galactic center, just as planet velocities do in the solar system. They don't , so some gravitational force from some unseen mass must counterbalancing centrifugal force (mark that this is presumptious! The "force" need not be gravity.) Observations suggesting that galaxies formed when the universe was less than a billion years old. The gravitational pull of the visible mass is inadequate to cause this clumping so quickly in the history of the universe. Many candidates have been proposed to play the dark-matter role. One of the more popular possibilities is that vast sea of neutrinos pervading the cosmos -- if they really do display just a hint of mass. Two other candidates now on the table are so bizarre that we marvel at the ingenuity of the theorists. One involves exceedingly large particles, the other unbelievably tiny clumps of particles. At the "giant" end of the size spectrum are galaxy-size particles weighing only 10-24 as much as an electron, which is itself by no means large. It would be hard to experimentally distinguish such ethereal particles from a hard vacuum. A Princeton team, led by W. Hu, asserts that such particles would coalesce into giant globs of "fuzzy", cold, dark matter. Now if only Hu et al would tell us how to detect them! (Pease, Roland: ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf132/sf132p05.htm
... be the only ones of their kind on the planet. The Wiltshire mud springs are cold. They are not hot and steaming like those seen where geothermal heat is close to the surface, as in New Zealand, Java, and Yellowstone. They are also unique in their entrainment of subterranean fossils and bringing them to the surface. "There is no explanation of the way the springs ooze a pale, cold, grey mud to the surface, forming blisters that spurt high into the air. "Neville Hollingworth of the Natural Environment Research Council said: 'They are like a fossil conveyor belt bringing up finds from the clay layers below and then washing them out in a nearby stream.'" The fossil conveyor belt yields bones of marine reptiles, oyster shells, and the remains of sea creatures that lived during the Jurassic, about 165 million years ago. Some of the bivalves still retain their organic ligaments. Geologists wonder what forces squeeze the mud to the surface like toothpaste from a tube. (Nuttall, Nick; "Mud Springs a Surprise after 165 Million Years," London Times, May 2, 1996. Cr. A.C .A . Silk) From Science Frontiers #106, JUL-AUG 1996 . 1996-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf106/sf106p11.htm
... Science Frontiers ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Toppling-Penguin Theory Overturned In SF#133, we related how Antarctic penguins are reputed to become disoriented by watching overflying aircraft. These tales insist that the birds get so dizzy that they topple over backwards. This makes penguins appear rather stupid, when in truth they are being very smart. Penguins, like most animals, are counter-shaded, dark on the back, light below. When the penguins are swimming, avian predators have difficulty seeing them against the dark sea. Marine predators below tend to lose their white bellies when seen against the bright sky. But when the penguins waddle across the white snow, the avian predators can spot them 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 ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf134/sf134p05.htm
... Sourcebook Subjects Unusual Wave January 14, 1998. Indian Ocean. Aboard the m.v . Oriental Bay , enroute Port Klang to Suez. "At 2230 UTC the vessel was on a course of 269 at 23 knots when a line was observed on the radar at a range of 3 n mile, travelling from northwest to southeast at an estimated speed of 15 knots, as indicated on the sketch. The line was observed to be a wave. "It was about 10 minutes after the first sighting that the vessel passed over the wave, which was approximately 4 m [13 feet] high, and she heeled 5 to port while the autopilot deviated 3 off course. At the time of the event, there was a low swell of 1.0 m from 320 and the sea was 0.5 m from 360 . The current was estimated to be 2.5 knots running to the west." (Talbot, A.P .; "Unusual Wave," Marine Observer, 69:10, 1999.) Comment. The wave could not have been a tsunami because it was travelling too slowly. Tsunamis travel at jet speed and are rarely visible on the deep ocean. Since the wave was solitary and four times the height of the gentle swells, it is unlikely that it was a chance combination of the swells. Most likely it was a surface manifestation of an internal wave that had been reflected from an undersea obstacle like the continental shelf. From Science Frontiers #122, MAR-APR 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf122/sf122p12.htm
... indexes, 1995. 546 references, LC 91-68541. ISBN 0-915554-30-5 , 7x10. Biological Anomalies: Mammals II: A Catalog of Biological Anomalies Sorry, Out of print Our fifth biology catalog completes out study of mammilian anomalies. This volume parallels Humans II and III with major sections on the fossil record and cryptozoology. In addition, there are shorter sections on genetics, organs, bodily functions, and interactions between mammals and other life forms. Typical subjects covered: Biochemical curiosities * Recent survivals of the mammoth, ground sloth, thylacine * Out-of-place mammals * Dearth of transistional fossils * Male lactation * Sleeplessness in mammals * Inheritance of rotational effects * Magnetite in mammals * Microbat data processing * The onza, nandi bear, Steller's sea ape, and others. Comments from reviews: Essential for all libraries, schools and serious Forteans. Fortean Times View Cart Buy online via PayPal with MC/Visa/Amex 324pp, hardcover, $21.95, 89 illus., 3 indexes, 1996. 527 references, LC 91-68541. ISBN 0-915554-31-3 . 7" x 10". Biological Anomalies: Birds: A Catalog of Enigmas and Curiosities Sorry, Out of print Birds are everywhere: some can fly high over the Himalayas, others can dive as deep as 500 meters in the oceans, some migrate unerringly from one end of the earth to the other. With more than 9,000 species recongnized, birds present us with hundreds of scientific puzzle to solve. Typical subjects ...
Terms matched: 1 - Score: 24 - 10 Oct 2021 - URL: /sourcebk.htm
