78 results found.
... 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 Arctic Was Warm According to the anthropologists' schedule of hominid diffusion across the planet, the Ice Ages blocked most east-west travel at high latitudes until about 12,000 years ago. This date now seems far off the mark. A team of Russian and Norwegian archeologists has located a hominid camp at Mamontovaya Kurya in Russia on the Arctic Circle. Bones of horses, reindeer, and wolves were strewn about this Paleolithic camp. Most important of all, though, was a 4-foot mammoth bone bearing grooves made by sharp stone tools -- a sure sign of human occupation. The mammoth bone has been dated as 36,000 years old. This is the earliest sign of hominid presence in the high Arctic. These grooves on the Mamontovaya Kurya mammoth bones were made with sharp stone tools, but for what purpose? Was primitive notation in use 40,000 years ago? You will notice that we use the word "hominid" rather than human, because the campers may have been Neanderthals. No hominid bones were found to resolve this matter. The implication of all of this is that, although the Arctic may have been very cold 36,000 years ago, it was largely ice-free. (Pavlov, Pavel, et al; "Human Presence in the European Arctic Nearly 40,000 Years ago," Nature, 413:64,2001. Wilford, John Noble; " ...
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... 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 ...
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... immediately if it was concentrated enough. A colossal firestorm might have then enveloped the entire planet. The whole atmosphere could have been afire. This, according to B. Hurdle and colleagues at the Naval Research Laboratory, who speculate that the dinosaur hegemony may ended suddenly in flames rather than in a long, drawn-out whimper. (Day, Michael; "Hell on Earth," New Scientist, p. 5, November 20, 1999) 55 million years ago. Ten million years after the dinosaurs may have roasted in a global firestorm, another methane burp may have erupted from the oceans. This burp was slower and did not ignite but was just as lethal. It filled with atmosphere with a highly effective green-house: methane. The result was a pulse of global warming; as seen in a 5-7 -deg C increase in the temperature of ocean-bottom water during that period. Biological evidence for the event occurs in the skeletons of marine animals that litter the ocean sediments laid down in that lethal period. On the land, prior to the methane release, North America was'populated by an odd assortment of unfamiliar mammals; "unfamiliar" to ustoday because they left no descendents. These archaic mammals succumbed to the effects of the sudden global warming and were ultimately replaced by the ancestors of our familiar deer, horses, and canines that streamed across the now-open Bering Land Bridge. Geology, too, provides evidence of this traumatic event. Ocean-bottom cores reveal landslide debris that was probably triggered by the sudden decomposition of great ...
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... Science Frontiers ONLINE No. 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Whence Whitings?Curious clouds of fine white particles often decorate the surface of the warm, shallow waters around the Bahamas. Called "whitings," these clouds of suspended material are not minor phenomena to file away and forget. Some of the bright streaks are 200 square kilometers in area and can be seen from the Space Shuttle. The source of the whitings has not been determined with certainty. The locals claim that schools of fish stir up the fine, white, calcareous 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 ...
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... Science Frontiers ONLINE No. 131: SEP-OCT 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Green Misconceptions More trees are better for the environment . The Kyoto protocol recommends that we should all plant more trees, because trees help remove carbon dioxide from the atmosphere. CO2 is a green-house gas, and its reduction should slow global warming. At least, this is how the Kyoto logic went. More trees may be good for the environment in the tropics, but the reverse is true in lands that are covered with snow most of the year. This is be-cause snow reflects much of the impinging solar energy back into space. If these northern lands were heavily forested, much of the solar energy would be absorbed and converted into heat. Climate-modellers confirm that sunlight-reflecting snow is better for the environment than trees. (Anonymous; "Reflect on It," New Scientist, p. 19, May 13, 2000.) Hydroelectric power is clean . Although widely proclaimed to be among the cleanest energy sources available, some hydroelectric powerplants actually con-tribute more greenhouse gases than large coal-fired plants! Submerged vegetation is the problem. When it decays, it releases greenhouse gases---in quantity. The forests first submerged by the reservoirs behind the dams contribute gases for only a few years. Most of the troublesome biomass is fed into the reservoirs from upstream. Compounding the problem are the vast areas of stagnant water behind many hydroelectric dams. There, in the absence of ...
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... 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 Hailstorms as Imaginative Sculptors June 29, 1984. Padis Plateau, Romania. This plateau is located in the Transylvanian Western Carpathians. The weather was pleasantly warm even though the ground was still covered with snow. In the south there suddenly appeared a cumulonimbus capillatus whose top seemed to me to be about 14 kilometres or 42 000 feet. As the cloud took on the character of cumulonimbus incus and gradually covered the entire sky, thunder could be heard more and more loudly. The flock of sheep grazing in the deep valley gathered together just as they do before sunset because they too felt the approaching storm. At 16 UT the first raindrops fell. A weak shower of rain followed, and then loose-structured 20-mm-diameter discs of ice. Soon afterwards what was to be 30 minutes of "sky fire" set in. Stone-like pieces of ice streamed to the ground, very heavily and violently. Some of the hailstones were the size of a nut or plum. Within minutes a white carpet covered the plateau of Padis at an altitude of 1200 metres (3900 feet), and the air grew very cool. The landscape was covered by a milky-white veil of fog which rose from the cold ground to a height of 1 to 1.5 metres to embrace the whole dolomite plateau. Then for three minutes the hailstorm paused, before restarting! It lasted for 55 minutes, and it was ...
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... Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Still Another East-Coast Pre-Clovis Dig In SF#125 , we reported on the Topper pre-Clovis site in South Carolina, where stone tools tentatively dated as 12,000-20,000 years old were excavated. Finds like this challenge the claim that the Americas host no artifacts earlier than 11,500 B.P ., when the Clovis people first traipsed across the Bering Land Bridge. Now, on a sandy rise, called Cactus Hill, some 45 miles south of Richmond, Virginia, archeologists have uncovered another apparently pre-Clovis site. An upper level at Cactus Hill, dated at 10,920 B.P . does contain typical Clovis artifacts. These are warmly received by mainstream archeologists for they support a highly cherished paradigm. But only 6 inches below the Clovis level, the diggers gingerly brushed the dirt off crude projectile points that were clearly not of Clovis manufacture. This level seems to be about 5,000 years older than the Clovis level according to radiometric dating of charcoal. Skeptics suggest that there has been mixing of the sandy soil and that these early dates are suspect. But thermoluminescent dating has confirmed the 5,000-year time gap. Thorough analyses of the soil with its plant and animal re-mains indicated little if any mixing. D. Stanford, from the Smithsonian Institution, asserts that these purported pre-Clovis projectile points resemble those common in Europe in the same time period. From all this, it seems that ...
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... in the jargon of climatologists): .. .under conditions that resemble those encountered in the Eemian interglacial ice of central Greenland (from about 125,000 to 115,000 years ago---impurity fluctuations may be separated from ice of the same age by as much as 50 cm. This distance is comparable to the ice thickness of the contested sudden cooling events in the Eemian ice from the GRIP core. Translation: The accepted picture of the earth's climate history over the last few hundred thousand years may be seriously distorted. (Rempel, A.W ., et al; "Possible Displacement of the Climate Signal in Ancient Ice by Premelting and Anomalous Diffusion," Nature, 411:568, 2001.) Comment. This discovery could impact the global-warming controversy as well as our model of human activities during the Ice Ages. From Science Frontiers #137, SEP-OCT 2001 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...
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... it just one more paradoxical phenomenon allowed by quantum mechanics. You see, in quantum mechanics, an object can exist in two or more states at the same time. This is, of course, a statement of fact rather than an explanation appealing to one's common sense -- a common occurrence in the quantum world. (Cho, Advising "Physicists Unveil Schroedinger's SQUID," Science, 287:2395, 2000) Heat flowing from cold to hot. The revered Second Law of Thermodynamics seems to tell us that heat always flows from hot to cold. But out in space, under special conditions, physicists seem to hedge a bit. The groundbreaking experiment was carried out onboard the Mir space station last year as part of the French-Russian Perseus mission. By warming a copper-and sapphire-walled cell filled with a drop of liquid sulfur hexafluoride and one tiny bubble of gaseous sulfur hexafluoride in near-zero gravity, scientists triggered a slight compression of the bubble. That gentle squeeze raised the temperature of the gas above that of the cell walls. For this to happen, heat must have been transferred from the cooler walls to the hotter gas, scientists report in the 1 May Physical Review Letters. This weird phenomenon can be tossed off as a "transient temperature overshoot." The Second Law didn't really apply because the system was not in thermodynamic equilibrium. Also, the Second Law really concerns changes in entropy rather than temperatures. (Sincell, Mark; "Backward Heat Flow Bends the Law a Bit," Science, 288 ...
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... of sun-less aggregations of matter drifting through the void, some doubtless quite close to us. Myriad nomadic planets may be roaming our Galaxy free from the clutches of parent stars. Two teams of astronomers think they have detected 25 of these free-floating planets, and say there could be hundreds of millions of them wandering the Milky Way. These free-floaters or "drifters" were created when small clouds of gas and dust coalesced under gravity's urging. If such collapsing clouds were less than 80 times Jupiter's mass, they would not be able to sustain nuclear reactions and become long-lived stars. Many would be-come "brown dwarfs." Still smaller aggregations -- less than 14 Jupiters -- would never shine at all. These would remain warm for a while as they dissipated the gravitational energy that created them. Such small objects would be temporarily detectable by infrared telescopes. Hundreds of such infrared "point sources" turn up in sky surveys. These are the only "drifters" we can detect. "Drifters" that have already cooled off are certainly out there by the hundreds of millions. (Muir, Hazel; "The Drifters," New Scientist, p. 14, April 1, 2000.) Comments. Science-fiction writers have not neglected the "drifters" as potential sources of intelligent life. F. Hoyle's The Black Cloud is a good example of the genre. Who can say what "plasma entities" might have emerged over the eons on these multitudinous drifters? To illustrate, if ...
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... see strong contrasts in the roughness of the ocean surface in the lee of those idyllic islands with their volcanic peaks that poke over 10,000 feet into the Pacific airstreams. These long streaks on the ocean surface are called "wind wakes." The wind wake leeward the Hawaii is spectacular. These islands are swept by steady northeast trade winds. Mauna Kea (4201 meters), Mauna Loa (4201 meters), and other Hawaiian peaks penetrate high above trade inversion. Together they create a visible wind wake some 3,000 kilometers long to the west -- many time-greater than any other island wind wakes to be seen on the planet. The effects of these soaring peaks are more than visual. Their wind wake drives an eastward ocean current that, in turn, draws warm water away from the Asian coast 8,000 kilometers distant from Hawaii. Thus, a few island mountains affect the climate of a continent a fifth of the way around the globe! (Xie, Shang-Ping, et al; "Far-Reaching Effects of the Hawaiian Islands on the Pacific Ocean-Atmosphere System," Science, 292:2057, 2001.) Comment. The Hawaiian wind wake is not anomalous but it is surely interesting. From Science Frontiers #137, SEP-OCT 2001 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for ...
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... 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 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. ...
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... 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 . Ruxton et al have used game theory to show that Yom-Tov's speculation has considerable merit. However, there are nonadaptive explanations. The females in the species that lay pale last eggs may simply run out of egg pigment, or they may change physiologically as the egg-laying phase nears its end. (Ruxton, G.D ., et al; "Are Unusually Colored Eggs a Signal to Potential Con-specific Brood Parasites?" American Naturalist, 157:451, 2001.) Comment. We will not quarrel with game theory but hasten to ...
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... 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 long as several days have been triangulated to distant mountain ranges and tend to occur when winds blowing over them exceed a certain speed. This effect may be a low-frequency version of the aeolian tones produced by the cyclic eddy shedding that occurs when wind flows around obstacles. The reported increase in the incidence of suicides during episodes of warm downslope mountain winds (called Chinooks in the western U.S . and the Fohn in the Alps) may be due to some as yet unknown pressure fluctuations with 20-to-70 second periods. (Bedard, Alfred J., Jr., and Georges, Thomas M.; "Atmospheric Infrasound," Physics Today, 52:32, March 2000.) A sonogram of atmospheric infrasound (1 -20 Hz) taken over a 30-minute period. The constant frequencies are probably due to unidentified man-made sources, but the rest of the "signals" and most of the "hash" are of unknown natural origin. From Science Frontiers #131, SEP-OCT 2000 . 2000 William R. Corliss Other Sites of Interest SIS . Catastrophism, ...
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... 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 Warm, wet, fertile mars Mars may not be orbited by huge artificial satellites of alien provenance, but its geological history is looking more and more as if could have supported or perhaps still does support life. "A large number of anomalous landforms on Mars can be attributed to glaciation, including the action of ice and meltwater. Glacial landscapes are concentrated south of lat -33 and in the Northern Plains suggesting vast Austral and Boreal ice sheets. Crater densities on the glaciated terrains indicate that the final glacial epoch occurred late in Martian history. Thus, Mars may have had a relatively warm, moist climate and dense atmosphere much later than previously believed." (Kargel, Jeffrey S., and Strom, Robert G.; "Ancient Glaciation on Mars," Geology, 20:3 , 1992.) If Mars was warm and wet not too long ago, as implied above, perhaps life did gain a foothold there through either independent invention or, perhaps, through seeding by template-carrying comets or meteorites. P.J . Boston et al have investigated one possible Martian ecosystem: "We have reexamined the question of extant microbial life on Mars in light of the most recent information about the planet and recently discovered nonphotosynthetic ecosystems on Earth -- deep sea hydrothermal vent communities and deep subsurface aquifer communities. On Mars, protected subsurface niches associated with hydrothermal activity could have continued to support life even after surface conditions ...
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... concentrate on this unexpected periodicity in musical creativity. Allen describes how musical theorists have proposed both supernatural and evolutionary explanations for this periodicity, which commenced some 2,500 years ago with the Ancient Greeks. He is not convinced by either class of explanations. Instead, Allen has been beguiled by the long-period tones of environmental cycles: "Now we have knowledge of a constantly operating cyclic factor in our cosmos, scientifically based on a mass of inductive evidence that goes beyond recorded history into the tree-ring records from centuries B.C . For the first time, we are provided with a powerful conditioning factor, if not a determinant, in the creation of music." Here are two statements reflecting Allen's observations on the subject: "After 1590, as a new warm period began in the 100-year cycle, a new Golden Age began in music, as in Science. "In our own day, some composers have been extremely sensitive to cyclic changes. Stravinsky, notably in his return to neoclassicism after 1920, reflected the warm trend." (Allen, Warren Dwight; "The 500-Year Cycle in Music: The Modern Period," Cycles, 42:100, 1991. A reprinting.) Comment. Left unexplained in the "weather theory" of culture is just how warm trends inspire creativity. If warmth alone were the crucial factor, we would expect to see an inspiring outpouring of great music from today's Equatorial regions! From Science Frontiers #81, MAY-JUN 1992 . 1992-2000 William R. ...
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... 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 Solitary Waves Unlike the well-known long trains of ocean swells that sweep past ship and swimmer with great regularity, solitary waves move "in splendid isolation, steadfastly holding their shape." Spacecraft photos have revealed curious striations in the Andaman Sea near Thailand. They are presumed to be examples of solitary waves. The Andaman waves extend for many miles and travel very slowly -- less than 10 kilometers per hour. They propagate along the boundary between the layer of warm surface water and the great mass of cooler water below. The amplitude of the downwardly pointing wave troughs of warm water along this interface may penetrate as far as 100 meters into the cold water below. (Herman, Russell; "Solitary Waves," American Scientist, 80:350, 1992.) Comment. Much more about these solitary waves and the other unusual waves mentioned above may be found in section GHW in our catalog: Earthquakes, Tides, Unidentified Sounds . The prevailing explanation for most oceanic solitary waves (often called "solitons") is that they are generated when tidal surges encounter underwater continental shelves or other obstructions. The above-mentioned catalog volume is described at: here . From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
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... 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 It Came From Within Life did, that is! Forget that warm little pond where life incubated according to all the textbooks. Instead, says T. Gold, an iconoclastic Cornell physicist, life began in rocky fissures deep down in the earth's crust. The idea is not as unlikely as it sounds. Look at the most primitive life forms we know, the archaebacteria. They like heat, need neither air nor sunlight, and prosper on sulfur compounds for sustenance. Such bacteria are today found in boreholes as deep as 500 meters, in thermal springs, and around deepsea vents. Gold surmises that these archaebacteria migrated to the surface long ago, where they evolved into higher forms of life. "Gold argues, moreover, that the earth's interior would have provided a much more hospitable environment for proto-life four billion years ago than the surface would have, ravaged as it was by asteroids and cosmic radiation. And if life emerged within the earth, then why not within other planets? 'Deep, chemically supplied life,' Gold says, 'may be very common in the universe.'" (Horgan, John; "It Came from Within," Scientific American, 267:20, September 1992.) From Science Frontiers #84, NOV-DEC 1992 . 1992-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 87: May-Jun 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fossil Feathers Fly A. Feduccia's cartoon of the bug-catching phase of bird evolution Our alliterative title is apt on two counts: (1 ) Recent research on the famous Archaeopteryx fossils suggest that this animal could indeed fly and was arboreal rather than terrestrial; and (2 ) The paleontologists and ornithologists are still fighting (sometimes emotionally) over how Archaeopteryx fossils should be interpreted. The scientific acrimony centers on whether this ancient bird really evolved from small theropod dinosaurs. Prevailing theory has it that these dinosaurs first evolved feathers to keep warm and then used their feathered "arms" to help capture insects, and so on, with some aimless flapping, to the attainment of true flight. A rival, officially frownedupon theory has it that birds evolved from tree-dwelling reptiles that evolved feathers to break their falls while jumping from branch to branch! [Somehow, neither theory strikes a realistic chord. Why couldn't feathers have evolved solely for the purpose of flight? Answer: because evolutionists cannot countenance purpose in nature. WRC] One reconstruction of Archaeopteryx. There is a remarkable superficial resemblance to the living South American hoatzin. Young hoatzin even sport claws on their wings. Anyway, the latest fusillade in the Archaeopteryx wars was fired by A. Feduccia in Science. Feduccia demonstrated that the claws of Archaeopteryx are sharp and curved like those of modern arboreal birds and quite unlike either terrestrial birds or theropod dinosaurs. In ...
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... 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 Dinosaur Flatulence And Climate Changes "Fossilized dinosaur dung contains evidence that flatulence from the giant creatures may have helped warm the Earth's climate millions of years ago, scientists said yesterday. "The researchers detected chemical signs of bacteria and algae in known and suspected dinosaur droppings. That indicates that plant-eating dinosaurs digested their food by fermenting it, a process that gives off methane." We all know that methane is a "greenhouse gas," so it seems that the dinosaurs may have self-destructed. (Anonymous; "How Dinosaurs May Have Helped Make Earth Warmer," San Francisco Chronicle, October 23, 1991. Cr. D.H . Palmer) Comment. We are not being facetious here, for it is seriously proposed that much of the greenhouse gas produced today comes from cattle, sheep, and other animals that ferment their food. From Science Frontiers #80, MAR-APR 1992 . 1992-2000 William R. Corliss ...
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... Frontiers ONLINE No. 81: May-Jun 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Mouse Engineering Shortly after writing in SF#79 about the "Ancient Greek Pyramids" and the Saharan mice that construct small pyramids of pebbles to extract moisture from the air, we serendipitously ran across the following: " Australian Native Mice . The species P. chapmani builds low mounds of pebbles over its burrow systems, and P. hermannsburgensis may use these mounds after they are constructed. The pebbles are of a uniform size and cover a large area, often a meter in diameter. The pebbles are probably collected both by excavation and from the surface. Some local mammalogists believe these are used as dew traps. Since the air around the pebbles warms more rapidly as the sun rises than do the pebbles themselves, dew forms on the pebbles by condensation. As the areas in which these mounds are found are quite dry, except after a heavy rain, these dew traps solve the problem of water shortage. Local farmers use the many pebble mounds for mixing concrete. It is believed that the ancient people of the Mediterranean region used a dew trap method comparable to that of P. chapmani ." (Nowak, Ronald M.; "Australian Native Mice," Walker's Mammals of the World , Baltimore, 1991, p. 820.) Comment. Now we must decide between at least three possibilities. Since the Australian native mice and Saharan mice are many thousands of miles apart, we have: (1 ) independent ...
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... 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 Archaea: the living ancestors of all life forms Life's place of origin may soon shift from that long-favored "warm little pond" to undersea hydrothermal vents. "Important new discoveries on the properties of the early earth and atmosphere, including the frequency and size of bolide impacts, have strongly implicated submarine hydrothermal vent systems as the likely habitat for the earliest organisms and ecosystems, while stimulating considerable discussion, hypotheses and experiments related to chemical and biochemical evolution. Some of the key questions regarding the origins of life at submarine hydrothermal vent environments are focussed on the effects of temperature on synthesis and stability of organic compounds and the characteristics of the earliest organisms on earth. There is strong molecular and physiological evidence from present-day mircoorganisms that the earliest organisms on earth were capable of growing at high temperatures (about 90 C) and under conditions found in volcanic environments. These 'Archaea', the living ancestors of all life forms, display a variety of strategies for growth and survival at high temperatures, including thermostable enzymes active at temperatures about 140 C. Further molecular and biochemical characterization of the presently cultured thermophiles, as well as future work with the many species, particularly from subsurface crustal environments, not yet isolated in culture, may help resolve some of the important questions regarding the nature of the first organisms that evolved on earth." (Baross, J.A .; "Hyperthermophilic Archaea: Implications for the ...
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... populations arrived about 7,500 years ago. The more geographically widespread Amerind population, however, seems to be descended from two separate influxes; the first about 30,000 years ago, the second about 10,000 years ago. D. Wallace, from Emory University, surmises that the sharply defined rise of the Clovis culture, conventionally dated from 12,000 years ago, may have resulted from the second Amerind immigration. (Lewin, Roger; "Mitochondria Tell the Tale of Migrations to America," New Scientist, p. 16, February 22, 1992.) Comment. The 30,000-year date, however, is consistent with MacNeish's discoveries at the Orogrande Cave. Hang in there archeology anomalists, the 12,000year paradigm is melting in the warm spring sun! Scene: In the Bluefish Caves in the northern Yukon. "Arctic caves in the northern Yukon have yielded apparent bone tools carved 24,000 years ago, more than 13,000 years earlier than the earliest confirmed human habitation of the Americas, a Canadian archeologist [R .E . Morian] reported yesterday." (Petit, Charles; "24,000-Year-Old Tools Found in Yukon," San Francisco Chronicle, February 10, 1992. Cr. D.H . Palmer.) Comment. These bone tools "appear" to be worked by humans, but it is always possible that they were naturally frac tured; and this is what conservative archeologists routinely proclaim. From Science Frontiers #81, MAY-JUN 1992 . 1992- ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Martian Riddle Adaptation of J. Channon's sketch of the "Face on Mars" emphasizing its similarities to the Sphinx. (From: Pozos, Randolfo Raphael; The Face on Mars , Chicago, 1986, p.50) Once again we return to cold, desertlike Mars, which still clings to a thin, oxygen-less atmosphere and where, some say, the artifacts of a long-dead intelligent race may be seen. A livable Mars in past eons is not a physical impossibility. Some scientists argue that Martian geological and geochemical data: ". .. are consistent with past conditions on Mars that were favorable to earth-like life forms: Abundant liquid water and an atmosphere that was dense and warm, and possibly rich in oxygen." That life -- intelligent life -- once thrived on Mars is suggested by photos taken of the Martian surface by Viking spacecraft: "Images of the surface of Mars showing, at several sites what appear to be three carved humanoid faces, of kilometer scale, and having similar anatomical and ornamental details between all three. Appearing with these objects are numerous other objects and suface features that resemble Earth-like archaeological ruins, of a Bronze Age culture, with no evidence of advanced technology or civilization." The Martian faces, pyramids, and cities are the foundation of the Cydonian Hypothesis: "That Mars once lived as the Earth now lives, and that it was once the home of an indigenous humanoid intelligence." (Brandenburg, John ...
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... . 74: Mar-Apr 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Gaia on mars?H.L . Helfer, University of Rochester, noting the absence of extensive cratering on the northern plains of Mars, suggests that some 2-3 .5 billion years ago these plains were covered with oceans. These ancient seas, perhaps as much as 700 meters deep, protected the plains from direct impacts. Further, crater density counts for Chryse and the Martian highlands imply that Mars possessed a fairly dense atmosphere until about 1.5 billion years ago. In his Abstract Helfer speculates as follows: "With both early Earth and early Mars having similar atmospheric compositions and not too dissimilar atmospheric structures, it is reasonable to suppose that the warm Martian oceans, like the ancient oceans of Earth, would develop anerobic and aerobic photosynthesizing prokaryotes and structures like stromatolites. Their development might have changed the Martian atmosphere. Their fossils might be found along the fringes of the old oceans, the northern lowland plains." (Helfer, H.L .; "Of Martian Atmospheres, Oceans, and Fossils," Icarus, 87:228, 1990.) Comment. The Gaia influence is seen in the molding of the Martian atmosphere into something more conducive to the development of life. One can also speculate that, if life did develop on Mars, it could have seeded the earth via bits of debris blasted off by meteorite impacts. Several meteorites picked up in Antarctica are thought to have come from Mars originally. Reference. Data ...
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... 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 Eight Leatherback Mysteries Our subject here is the leatherback turtle. Weighing up to 1600 pounds, it is the largest of the sea turtles. It is also the fastest turtle, hitting 9 miles per hour at times. But weight and speed are not necessarily mysterious; here are some characteristics that are: The leatherback is the only turtle without a rigid shell. Why? Perhaps it needs a flexible shell for its very deep dives. What looks like a shell is its thick, leathery carapace -- a strange streamlined structure with five to seven odd "keels" running lengthwise. These turtles are warm-blooded , and able to maintain their temperatures as much as 10 F above the ambient water, just as the dinosaurs apparently could. The bones of the leatherback are more like those of the marine mammals (dolphins and whales) than the reptiles. "No one seems to understand the evolutionary implications of this." Leatherbacks dive as deep as 3000 feet which is strange because they seem to subside almost exclusively on jellyfish, most of which are surface feeders. Like all turtles, leatherbacks can stay submerged for up to 48 hours. Just how they do this is unexplained. Their brains are miniscule. A 60-pound turtle possessed a brain weighing only 4 grams -- a rat's weighs 8! Leatherbacks' intestines contain waxy balls, recalling the ambergris found in the intestines of sperm whales. The stomachs of ...
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... Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Terraforming Mars The concept of terraforming a planet is an old standby of science fiction; it is the process by which a technologically advanced race manipulates the surface and atmosphere of an uninhabitable planet so that it becomes inhabitable. We humans know to our dismay that we have the capacity to modify the earth's environment, but could we perhaps exercise better judgment and terraform Mars? C.P . McKay et al have looked into this possibility: "From our analysis, one could propose the following sequence of events: production of CFCs (or other greenhouse gases) starts on Mars and the surface temperature warms up by about 20 K. The regolith and polar caps release their CO2 and the pressure rises to 100 mbar. One of two things could then happen. If there were large regolith and polar CO2 reservoirs, the pressure would continue to rise on its own. If these were absent, the CO2 pressure would stabilize, and additional CO2 would have to be released from carbonate minerals. At this point (perhaps between 100 and 105 years) Mars may be suitable for plants. If there was a mechanism for sequestering the reduced carbon, these plants could slowly transform the CO2 to produce an O2-rich atmosphere in perhaps 100,000 years. If sufficient N2 could also be released from putative soil deposits, and the CO2 level kept low enough, then a human- breathable atmosphere could be produced. (McKay, ...
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... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Doubts About Two Ritually Recited Theories Do you think humans originated in Africa? We have heard for so long now that modern humans got their start in Africa. (This assertion is as hackneyed as: "Life began in a warm little pond"!) There is, of course, some evidence for the African claim. Studies of genetic material and the fossil record are suggestive, although the latter includes the Middle East as a possible birthplace. Other data, however, put the "founding group" of modern humans in Southeast Asia. The iconoclast here is C.G . Turner, II, an anthropologist at Arizona State University. He has analyzed secondary dental traits (number of roots, bumps, etc.) of 12,000 individuals from around the world - both ancient and modern. Turner believes that the "great web of humanity" originated in Southeast Asia. Since then, two large populations, each recognizable by their dental features, have evolved.: (1 ) northeast Asians and the ancient residents of the Americas; and (2 ) southeast Asians, Europeans, ancient Australians, and Africans. Also of note is the close resemblance between native Australians and Africans. (Bower, B.; "Asian Human Origin Theory Gets New Teeth," Science News, 136:100, 1989.) Did the eruption of Thera do in the Minoans? According to popular archeolo-gical doctrine, ...
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... "? By "cosmic Gaia" we mean the cosmic version of the conventional Gaia concept; i.e ., earth-as-an-organism. The answer is that small icy comets can in principle transport throughout all of space: Immense quantities of water needed for life-as-we-know-it. The carbonaceous material basic to that same kind of life. (See SF#48.) The seeds of life, a la Hoyle and Wickramasinghe. Energy, as discussed above by Frank et al. Observe that Frank et al are saying that the kinetic energy in the flux of small comets is sufficient to raise a planet's temperature as well as supply water. In this light, exobiologists need not confine their search for extraterrestrial life to planets surrounding warm suns. Somewhere, far from stars, there may be places where comets may raise atmospheric temperatures to where life can prosper! Sunlight, of course, is not needed absolutely, as demonstrated by the profusion of life around deep-sea vents. From Science Frontiers #52, JUL-AUG 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 55: Jan-Feb 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Wheels of light: sea of fire It has always been perplexing that scientists have made no concerted effort to find the cause of the many forms of the geometrical luminescent displays seen in the Persian Gulf, the Indian Ocean, and other warm waters. True, a few individual researchers have looked at literature and done some theorizing; but no expeditions have been launched that we know of. Here is a well-verified, richly complex, eerily beautiful, natural phenomenon that is almost completely neglected by science. Happily, P. Huyghe has now brought the problem to the fore in a comprehensive article in Oceans, He reviews several types of luminescent displays and some of the theories-of-origin that have been proposed. We have space here for only one of the observations he records. P. Newton was the Chief Officer on the M.V . Mahsuri, which was passing through the Gulf of Oman bound for Australia. It was a dark, moonless night in May. "Then it happened. What first caught Newton's attention was a pale green glow on the horizon just ahead of the ship, but he said nothing to the cadet standing watch with him. Moments later, parallel bands of bluegreen light began to sweep silently over the water toward the ship from the southeast. Still, Newton said not a word, but he felt as if he should duck. Each light band was about 10 to ...
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... Science Frontiers ONLINE No. 55: Jan-Feb 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Do we really understand the dinosaurs?Until very recently, the standard dinosaur scene in the books and magazines showed huge, ungainly beasts shuffling around in lush swamps. Things are changing. Dinosaurs are now becoming more lively and talented; they may even have been warm-blooded! A recent paleontological expedition to the Gobi Desert by some Canadians will change the dinosaur stereotype even more. The Gobi dinosaur-bone sites are incredibly rich -- comparable with those in Alberta. What is most impressive, however, is the environment the Gobi dinosaurs lived in. "The dinosaurs of China and Mongolia did not live in the same type of lush, well-watered environment that existed in North America during the Mesozoic era, when dinosaurs dominated the globe. The dinosaurs of Alberta flourished on a great swampy coastal plain on the edge of a vast inland sea. In ancient China, conditions were much harsher. A modern-day equivalent would be the Great Salt Lake Basin of Utah. Water did exist in vast shallow lakes, but it was often alkaline and high in soda. The vegetation was scrubland with coniferous forests on the higher ground." (Anderson, Ian; "Chinese Unearth a Dinosaurs' Graveyard," New Scientist, p. 26, November 12, 1987.) Comment. To these Gobi observations should be added those above from northern Alaska, all of 70 north latitude, which suggest that dinosaurs also survived ...
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... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects New Vertebrate Depth Record S. Eckert, of the University of Georgia, has reported that a leatherback turtle fitted with a recording device dove to 1200 meters. This exceeds the previous record for air-breathing vertebrates (sperm whales). Leatherbacks also hold other records, being the largest of living turtles (over 600 kilograms) and the most widely distributed reptile in the world. They are also capable of maintaining their body temperatures sub stantially above the ambient water temperature, although no one has as yet claimed that they are warm-blooded. (Mrosovsky, N.; "Leatherback Turtle Off Scale," Nature, 327:286, 1987.) From Science Frontiers #52, JUL-AUG 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Mite Pockets Of Lizards "Many lizards are infested by chig gers, the larvae of trombiculid mites, which feed on tissue fluid and cell debris. Surprisingly, lizards seem to go out of their way to attract the chiggers -- they have special mite pockets that provide a protected, warm and humid site. In many cases, the skin of the lizard also has smaller scales than normal and a good blood supply in the pocket, which enables the parasites to feed more readily." There does not seem to be any advantage to the lizards providing plush accommodations for the chiggers. The chiggers can wreak havoc on their hosts in the form of skin lesions, allergic reactions, secondary infections, and the transmission of diseases. Nevertheless, some 150 species in 5 distinct lizard families possess mite pockets, which are often located in different places in different lizard species. Apparently, the mite pockets evolved separately several times. But why? (Benton, Michael J.; "The Mite Pockets of Lizards," Nature, 325:391, 1987.) Comment. Why haven't the lizards evolved thicker skin or some sort of chemical defense instead of reducing their fitness with mite pockets? Or, are other factors operating? From Science Frontiers #51, MAY-JUN 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunnelling Towards Life In Outer Space Most books on biology begin the history of life in those apochryphal warm ponds of primordial soup. Leave comfortable earth for a moment and consider the immense, cold clouds of gas and dust swirling between the stars and galaxies. At near-absolute-zero, sunless and waterless, these clouds hardly seem the womb of life. Yet, there may be found the atoms necessary to life -- H, C, O, N, etc -- and in profusion. Collisions of cosmic rays can promote the synthesis of fairly large molecules. We have already detected molecules as complex as formaldehyde in the interstellar medium. But surely the immensely more complicated molecules of biology cannot be synthesized near absolute zero. This may not be true either because at extremely low temperatures the quantum mechanical phenomenon of "tunnelling" becomes important. To achieve molecular synthesis, repulsive barriers must be overcome. The warm temperatures in that terrestrial pond can provide the extra kinetic energy to climb over these barriers. In cold molecular clouds we must look elsewhere. The laws of quantum mechanics state that there is always a very low probability that atoms and molecules can tunnel through repulsive barriers -- no need to climb over them via thermal effects. "Specifically, entire atoms can tunnel through barriers represented by the repulsive forces of other atoms and form complex molecules even though the atoms do not have the energy required by classical chemistry to overcome ...
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... and tradition. The authors of this article stess the pitfalls of using data handed down verbally from generation to generation. With these caveats, they reproduce an Indian tradition originally set down by Judge James Swan back in 1888: "' A long time ago,' said my informant, 'but not at a very remote period, the water of the Pacific flowed through what is now the swamp and prairie between Waatch village and Neeah Bay, making an island of Cape Flattery. The water suddenly receded leaving Neeah Bay perfectly dry. It was four days reaching the lowest ebb, and then rose again without any waves or breakers, till it had submerged the Cape, and in fact the whole country, excepting the tops of the mountains at Clyoquot. The water on its rise became very warm, and as it came up to the houses, those who had canoes put their effects into them, and floated off with the current, which set very strongly to the north.'" The authors of the present article wonder if the above could be an account of a massive tsunami! They admit that the 4-day recession is inconsistent with tsunami action and that the warm water is hard-to-explain. The height reached by the inundation -- some 400 meters -- is also incredible. (Heaton, Thomas H., and Snavely, Parke D., Jr.; "Possible Tsunami along the Northwestern Coast of the United States Inferred from Indian Traditions," Seismological Society of America, Bulletin, 75:1455, 1985.) From Science Frontiers ...
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... endowed planet into space safely, particularly if the impacting object glanced off into space pulling ejecta after it. The terminal phase, the capture of spores from a passing molecular cloud by the solar system and then the earth, would be nonlethal if the spores were somehow coated with a thin veneer of ultraviolet absorbing material. In sum, the experiments place limits on panspermia, but do not rule it out by any means. (Weber, Peter, and Greenberg, J. Mayo; "Can Spores Survive in Interstellar Space?" Nature, 316:403, 1985.) Comment. Weber and Greenberg do not discuss the possible existence of dense, low-temperature regions in molecular clouds where conditions might be conducive to the development of large molecules. Does life have to have the proverbial warm, sunlit pond to develop? From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
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... Voyager photos reveal that these rings are composed of unknown dark material quite unlike that in the high-albedo (bright) rings of Saturn. References. (Kerr, Richard A.; "A Comet's Heart May Be Big But Black," Science, 229:372, 1985. Also: Emsley, John; "Amino Acids from Outer Space," New Scientist, p. 30, December 19/26, 1985. Also: Anonymous; "Fine Particles Viewed in Uranus' Rings Leave Scientists 'Happily Bewildered'." Baltimore Sun, January 28, 1986.) Comment. How and where is star sludge manufactured? Again we have to venture that the venerable "primordial soup" in which life mysteriously assembled itself is located in outer space rather than in warm, sunlit earthly ponds. It also seems strange that all these extraterrestrial amino acids just seem to "fall together," with little urging, in seemingly hostile environments. More on this in the item that follows. From Science Frontiers #44, MAR-APR 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 30: Nov-Dec 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Soil Temperatures Forecast Rainfall Patterns Dig a hole about 40 inches deep, take the soil temperature at that depth, and you can predict future wet and dry periods months ahead of time. To illustrate, warm spring soils are usually followed by rainy summers; cold soils precede dry summers most of the time. At first, American scientists doubted this Chinese discovery, but their re-search soon proved that the correlation is even stronger in the United States. The best explanation so far is that soil temperatures affect atmospheric convection and modify weather patterns locally. (Anonymous; "Digging for a Forecast," Science Digest, 91:30, September 1983.) From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 27: May-Jun 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Great Balls Of Snakes Most garter snakes in the northern states spend the winter in communal dens below the frost line. Some dens host as many as 10,000 to 15,000 redlined garter snakes, which emerge en masse in the spring. Although garter snakes cannot survive freezing temperatures, they apparently do not congregate in such enormous numbers to keep warm, for sexually immature garter snakes commonly hibernate alone. Big concentrations of sexually mature garter snakes seem to be part of the reproduction strategy of the species. In the big aggregations, males usually outnumber females by 50-1 . As each female emerges in the spring, she is immediately mobbed by dozens of males. So-called "mating balls" of up to 100 males and a single female are formed. Naturalists commonly explain the wintering concentrations and mating balls as clever schemes evolved to maximize reproduction with minimum expenditure of energy. This article accepts this theme uncritically. (Lynch, Wayne; "Great Balls of Snakes," Natural History, 92:65, April 1983.) Comment. Evolutionists tend to "explain" facts in a circular fashion; that is, only the most efficient reproducers (or "fittest") survive, therefore those that survive must be the best reproducers. While the garter snake strategy has some advantages in terms of getting male and female together, things may have gone too far. For example, one communal den was flooded, ...
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... When The Earth Shifted Gears No one really knows just how the terrestrial magnetic field is generated or why it has reversed its direction so frequently in past geological time. Per-haps there is a clue in the following correlation: "The Mesozoic-Cenozoic histories of reversals in the earth's magnetic field and of periods of widespread anoxia in the ocean basins show a remarkable correlation; periods of black-shale deposition (' anoxic events') occur during lengthy periods without magnetic reversals (' quiet periods'). My assembly of published work indicates a remote connection between quiet periods and anoxic events and suggests its form: Magnetic quiet periods coincide with fast seafloor spreading. During these periods, buoyant spreading ridges displace seawater into broad shelves, thus decreasing earth's albedo and causing global warming. Temperature gradients, and thus density gradients, from pole to equator decrease in surface waters, and the deep ocean currents of oxygenated polar waters wane. Oxygen minimum zones intensify and widen; anoxic conditions throughout entire basins are indicated by black shales deposited in the deep sea. These relations thus suggest that the earth's interior processes and its climates are related and their status recorded by both magnetic polarity and anoxic event chronologies of the earth." (Force, Eric R.; "A Relation among Geomagnetic Reversals, Seafloor Spreading Rate, Paleoclimate, and Black Shales," Eos, 65:18, 1984.) Comment. But what stopped and restarted the magnetic reversals and other concurrent processes? Strangely enough, the quiet, anoxic periods do not seem to coincide with biological ...
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... Science Frontiers ONLINE No. 24: Nov-Dec 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Polyna Mystery "Polyna" is a Russian word meaning "an enclosed area of unfrozen water surrounded by ice." Polynas form for some unknown reason in the Southern Ocean surrounding Antarctica. These transient ice-free "lakes" may cover 300,000 square kilometers, inferring a substantial influx of heat countering the frigid polar temperatures. Although small coastal polynas can be blown free of ice by strong Antarctic winds, the open-ocean polynas are much larger and do not seem to owe their origins to wind. One suggested explanation is that warm subsurface water rises suddenly to the surface, but it takes a lot of heat to keep hundreds of thousands of square kilometers ice-free. The most recent polyna opened up a region of the Weddell Sea for about three years (1973-1976). (Simon, C.; "Polynas Surrounded by Ice and Mystery," Science News, 122:183, 1982.) From Science Frontiers #24, NOV-DEC 1982 . 1982-2000 William R. Corliss ...
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... naturally hot. However, in the early spring skunk cabbages are and so are some philodendrons during their flowering periods. In fact, some philo-dendrons burn fat to generate their heat, just like animals. Metabolism based on fats allows some philodendrons to reach temperatures of 124 F. In terms of their rates of metabolism, they rival those of the humming birds. Further-more, philodendrons can regulate their chemical fires, whereas skunk cabbages, which burn only starch, consume all their stored energy like a rocket in one snow-melting crescendo. Why do plants generate heat? Apparently to attract pollinating insects. The hot skunk cabbage poking through the snow is the only food in sight for early spring insects, while the philodendrons may attract pollinating insects who like to bask or mate in warm places. (Blakeslee, Sandra; New York Times, August 9, 1983, p. C4. Cr. P. Gunkel) Comment. Are plants really "lower" forms of life? From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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... Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Arctic Womb "Magnetostratigraphic correlation of Eureka Sound Formation in the Canadian High Arctic reveals profound difference between the time of appearance of fossil land plants and vertebrates in the Arctic and in mid-northern latitudes. Latest Cretaceous plant fossils in the Arctic predate mid-latitude occurrences by as much as 18 million years, while typical Eocene vertebrate fossils appear some 2 to 4 million years early." (Hickey, Leo J., et al; "Arctic Terrestrial Biota: Paleomagnetic Evidence of Age Disparity with Mid-Northern Latitudes During the Late Cretaceous and Early Tertiary," Science, 221:1153, 1983.) Comment. The anomaly here is in the vision of the high Arctic lands basking in the warm sun busily evolving new life forms well in advance of their appearance in lands closer to the Equator. What happened to the earth's axial tilt. These fecund polar territories should have been engulfed in darkness almost half of the year -- hardly an environment for precocious plant evolution. Further, trees found buried in the Arc-tic muck could never have grown where found due to the long polar darkness. From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 27: May-Jun 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Current Anomalous El Nino Bad spring weather? It's the El Nino. El Nino is the name given the annual movement of warm water southward along the western coast of South America. Every few years (range 2-10 years, average about 3 years) this current penetrates much farther south, devastating the fishing industry. Usually the catastrophic El Ninos begin in the eastern Pacific and work westward. The current El Nino is out of phase somehow, beginning in the western Pacific and moving east. (The current extreme drought in Australia is part of this phenomenon.) The more powerful El Ninos are usually associated with severe winters in North America; the opposite is true this time. Obviously, something is amiss with the current El Nino. (Philander, S.G .H .; "El Nino Southern Oscillation Phenomena," Nature, 302:295, 1983.) Reference. Anomalous El Ninos are cataloged at GHT4 in Earthquakes, Tides. This book is described here . From Science Frontiers #27, MAY-JUN 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 23: Sep-Oct 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remarkable Engineering Design In Nature Two unusual examples of inspired design in nature have been described recently: (1 ) The swordfish possesses special tissues rich in mitochrondria and cytochrome-c that generate heat for the animal's eye and brain. Not only do these heating elements keep the swordfish eye and brain significantly warmer than the surrounding water but they also keep these organs warm and thus more effective during deep dives into the cold ocean depths. (Carey, Francis G.; "A Brain Heater in the Swordfish," Science, 216:1327, 1982.) (2 ) Plants, it seems, developed light pipes long before humans. Certain plant tissues (etiolated or dark-grown) act as multiple bundles of optical fibers and coherently transfer light over distances of at least 2 cm. Optical tests show that these natural light pipes are much more effective transmitters of light than media that simply scatter light. This unsuspected sophistication of Nature's design may require significant revisions in photobiology, which did not allow for such ingenuity. (Smith , Harry; "Light-Piping by Plant Tissues," Nature, 298:423, 1982.) Comment. Since some plants are known to emit light, we would not be surprised, the way things are going, to learn of natural plant lasers! From Science Frontiers #23, SEP-OCT 1982 . 1982-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 18: Nov-Dec 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Life's origin within the earth?Biologists usually hark back to warm, sunlit swamps and tidal pools when contemplating the origin of life. Lately, Hoyle has proposed a cosmochemical origin (see OR DID IT DRIFT IN FROM WITHOUT? ). Few look within the earth. Yet, when Mt. St. Helens erupt-ed it essentially sterilized all lakes and ponds in the immediate area as far as known life forms were concerned, and then introduced previously unknown chemosynthetic bacteria. At least, this is one interpretation. Scientists at Oregon State University found the waters around the volcano to be teeming with these bacteria, up to a billion per drop. The bacteria resemble nothing in the local soil but do seem related to bacteria existing around Precambrian volcanos. (Anonymous; "Secrets of Life in a Volcano?" Boston Globe, July 14, 1981.) Comment. Were the new bacteria in the volcanic ejecta or had they just gone unnoticed in the soil? Could the hot rocks, geothermal brines, and restless magmas beneath our feet be the real cradle of terrestrial life, with photosynthesis-dependent surface species being relatively unimportant to the big picture? From Science Frontiers #18, NOV-DEC 1981 . 1981-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 8: Fall 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Brontides Become Respectable The mystery of natural detonations (Barisal Guns, mistpouffers, etc.) was probed by several scientific groups following the recent episodes of off-shore booms. This paper by Gold and Soter, from Cornell, would have warmed the heart of Charles Fort, for he made much of natural detonation: or "brontides," as they are termed in the early literature. Gold and Soter review the long history of brontides, noting that brontide activity is often associated with earthquakes, but not always. Natural booming noises, they contend, may be due to eruptions of natural gas. This would square with the rare observations of earthquake lights. Interestingly enough, the recent off-shore detonations were occasionally accompanied by luminous phenomena. (Gold, Thomas, and Soter, Steven; (Brontides: Natural Explosive Noises," Science, 204:371, 1979.) Reference. Brontides and other "water guns" are collected in GSD1 in Earthquakes, Tides, Unidentified Sounds. Details on the Catalog volume here . From Science Frontiers #8 , Fall 1979 . 1979-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 6: February 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Earth, the magic top The Journal of Physics is a most respectable British scientific publication, but in a recent issue we find an article that would warm the heart of Ignatius Donnelly, to say nothing of Hapgood, Brown, Velikovsky, and more recent catastrophists. Employing a wide span of data from complex top theory to ancient legend, Warlow suggests that the earth has undergone many violent catastrophes, some of them within the time of man. Flood legends, geomagnetic reversals, tektites, paleoclimatology, salinity crises, and other familiar standbys of the catastrophists force P. Warlow to examine the stability of the earth in the presence of astronomical collisions and near-collisions. He shows that the earth rotates slowly and that, even with the stabilizing equatorial bulge, our planet is rather sensitive to outside forces. It is, he says, like a tippe top or magic top; a 8,000-mile-diameter top that turns over repeatedly in response to external influences. Did not the ancient Egyptians write that the sun once rose in the west? Are there not massive faunal extinctions? Have not stray solar-system bodies left scars on all the inner planets? (Warlow, P.; "Geomagnetic Reversals," Journal of Physics,11:2107, 1978.) From Science Frontiers #6 , February 1979 . 1979-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 9: Winter 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Purple Blobs In Texas In early September 1979, the Associated Press carried a story about three purple blobs found in a yard in Frisco, Texas. One blob evaporated away, while the remaining two were preserved for analysis by NASA. The blobs were warm when found and had appeared during the height of a meteor shower. At first, NASA scientists did not rule out the possibility that the jelly-like goo might be extraterrestrial, but an AP dispatch the next day (not as widely printed) inferred that the blobs were merely industrial waste! (Anonymous; "NASA Scientists to Prob Mystery of 2 Purple Blobs Found in Texas," Baltimore Sun, September 8, 1979.) Comment. The blobs closely resemble gelatinous meteors or pwdre ser reported rarely down the centuries. One instance of pwdre ser was reported in 1978 from England in the Journal of Meteorology, U.K ., and there are doubtless more that are swept under the rug. We may be sure that NASA will have nothing further to do with something as outrageous as pwdre ser. Many pwdre ser observations are cataloged at GWF7 in Tornados, Dark Days, Anomalous Precipitation. This volume is described here . From Science Frontiers #9 , Winter 1979 . 1979-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 89: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects RHYTHMIC SUBMARINE VOLCANOS AND EL NINOS An El Nino commences when a giant high pressure system centered near Easter Island weakens slightly and causes a shift in the circulation of Pacific Ocean currents. Weather patterns from North America to Australia lurch ponderously in sympathy. El Ninos occur every 4-7 years, suggesting some periodic phenomenon is waving a geophysical baton. The real cause of El Ninos is still obscure. However, the recent discovery of over 1,000 previously unmapped submarine volcanos rising from the seafloor in the eastern Pacific may lead to El Nino's source. The synchronous eruption of, say, 100 of these volcanos might warm the ocean around Easter Island a tad -- just enough to warm the atmosphere above a bit -- resulting in a shift of the high pressure area. The area of intense volcanic activity covers 55,000 square miles of sea floor where the Pacific and Nazca plates are separating. In addition to the active volcanos, many plumes of 800 F water gush from the sea floor in this area. The volcano-El Nino link is, therefore, not so far-fetched. (Nash, Nathaniel C.; "Volcano Group in Pacific May Cause El Nino," Pittsburgh Post Gazette, February 14, 1993. Cr. E. Fegert) Comment. If submarine volcanos do cause the El Ninos, and the El Ninos are periodic, the submarine volcanism would have to be periodic, ...
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