223 results found.
... Science Frontiers ONLINE No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects First writing may have been three-dimensional Archeologists have long been puzzled by large numbers of small, fired-clay objects found in the Middle East. Denise Schmandt-Besserat, University of Texas at Austin, believes that these small geometrical shapes (cones, spheres, disks, etc.) were actually symbols used in commerce to indicate numbers and types of commodities (sheep, oil, etc.). Generally less than an inch in size, the clay objects were apparently sealed in hollow clay spheres to make bills of lading as early as 8,500 B.C . This is 5,000 years before two-dimensional clay tablets were introduced for writing. (Anonymous; "From Reckoning to Writing," Scientific American, p. 58, August 1977.) Comment. These clay symbols might be related to the painted pebbles and small carved stone balls found in Europe. From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Four Extragalactic Sources Expand Faster Than Light Three quasars and one galaxy possess structures that apparently expand faster than light. The sizes of the three qua sars were measured over periods of time by Very Long Baseline Interferometers (VLBIs). In the case of quasar 3C279, the apparent velocity of expansion was ten times that of light. The quasars all have rather large redshifts, indicating great distances from earth, but the lone galaxy displaying "superluminal" expansion has a redshift of only 0.032. This fact suggests that superluminal velocities cannot be employed as arguments against redshifts being cosmological; that is, measures of distances from earth. Therefore, if the redshift is truly a measure of distance (as it seems to be), some astronomical structures (perhaps not matter itself) seem to grow faster than the velocity of light. (Cohen, M.H ., et al; "Radio Sources with Superluminal Velocities," Nature, 268:405, 1977.) From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...
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... Online All Issues This Issue Sourcebook Project Sourcebook Subjects THE WOMAN WHO COULDN'T DESCRIBE ANIMALS The astounding complexity of the human brain was underscored recently by a 70-year-old woman, who could describe anything she saw except animals. The woman had an immune-system disorder that had damaged a small portion of her brain's temporal lobe. Her other mental faculties were intact. "The woman could name plants, foods, and inanimate objects and describe them without hesitation. The scientists were impressed that when shown a trellis, not exactly your everyday object, she could correctly name it and describe its cross-hatched geometry. "But when shown a squirrel or a dog, she froze. She couldn't find the right name for either, nor could she describe their size or shape or furry coats. "Her deficit, involving only a tiny portion of her language skills, was amazingly narrow." (Bor, Jonathan; "The Woman Who Couldn't Describe Animals," Baltimore Sun, p. A1, September 7, 1992.) The implications of this strange case were described in Science News: "The peculiar inability of a 70-yearold woman to name animals has led scientists to propose that the brain harbors separate knowledge systems, one visual, the other verbal or language-based, for different categories of living and inanimate things, such as animals and household objects." (Bower, B.; "Clues to the Brain's Knowledge Systems," Science News, 142:148, 1992.) Comment. ...
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... present in each circle, but it was thought that there were three or four at any one time, moving very fast and curving to produce what could only be described as a 'whirlpool' effect. "At the same time, there were pulsating rings expanding from the centres at intervals of about threequarters of a second. They moved extremely fast, each circle taking about one second to reach a diameter of about 200 m before being lost in the mass of flashing blue and white lights. The thickness of each ring remained constant at about 2 m as the diameter of the circle increased; the formation was always a perfect circle. "About 300 m off the ship's side, large irregular shapes were observed, They were all about 3-m in diameter and changed both size and shape while flashing intensely. By 1817 the effect had completely stopped on the starboard side and only the pulsating rings were left on the port side and, with these, the intensity of the light reduced until 1822 when there was nothing more to observe." (Bowden, P.; "Bioluminescence," Marine Observer, 62:64, 1992.) Reference. Chapter GLW in our catalog Lightning, Auroras describes a wide variety of complex bioluminescent phenomena, including many "wheels.". Ordering details here . From Science Frontiers #82, JUL-AUG 1992 . 1992-2000 William R. Corliss ...
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... about the same area as the Berlin and Eichstatt Archaeopteryx fossils. Under low-angle illumination, the new specimen shows parallel impressions originating from the lower arm of the left "wing." These impressions are "interpreted" as imprints of feather shafts. Thus, the new fossil reinforces the mainstream position that Archaeopteryx really did have feathers and was a link between reptiles and birds. Evolutionists will rest easier now. Two bothersome observations intrude, however. First, although the report on the new specimen states that the question of forgery does not arise here, even though the specimen's tail has been restored to the length deemed by the owner. In addition, the new Archaeopteryx is 10% larger than the London specimen, 30% larger than the Berlin specimen, and fully twice the size of the Eichstatt specimen. Is there more than one Archaeopteryx species? (Wellnhofer, Peter; "A New Specimen of Archaeopteryx," Science, 240:1790, 1988. Also: Wilford, John Noble; "Fossil May Help Tie Reptiles to Birds," New York Times, June 24, 1988. Cr. J. Covey) Comment. We wonder if Hoyle and Wickramasinghe will be allowed to examine the new specimen. Of course, this new discovery does not disprove the forgery claim for the two specimens studied by Hoyle and Wickramasinghe; it merely weakens their case. From Science Frontiers #59, SEP-OCT 1988 . 1988-2000 William R. Corliss ...
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... grains, mineral inclusions should be evident, but they are rarely present in sand-stones." The accepted explanation of this apparent anomaly is that the inclusions in fresh, granite-derived quartz grains so weakened the grain structure that the flawed grains are quickly broken up during weathering, transportation, and deposition. By the time any sandstone is formed, only flawless bits of sand remain. Case closed. No anomalist worth a grain of salt would let this delightful phenomenon escape without a bit more study. Do young sandstones with identifiable granitic sources show more inclusions than older sandstones? Do desert sands, beach sands, and other unconsolidated quartz grains show any flaws? Has anyone really examined fresh quartz grains weathered from granite to determine how the number of flaws in a grain varies with the grain size? (Cox, Douglas E.; "Missing Mineral Inclusions in Quartz Sand Grains," Creationist Research Society Quarterly, 25:54, 1988.) Comment. Most geologists will complain that we are going out of our way to make trouble. But consider the possibility that some unflawed quartz grains in sandstones may have actually been precipitated from gases and fluids and not be granitic at all. And what about those sandstone dikes and other sand-stone intrusive bodies? Where did their quartz grains originate? Not all sandstone is sedimentary. From Science Frontiers #59, SEP-OCT 1988 . 1988-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 112: Jul-Aug 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Icy minicomets caught by a satellite camera?A geophysicist really risks his or her reputation if he or she suggests that the earth is bombarded each by 20 house-size, icy minicomets. Well, L. Frank, University of Iowa, did just that in 1986. He was duly pilloried for his trouble. But, at the 1997 spring meeting of the American Geophysical Union, Frank presented new data to back up his previous assertions. The most startling of his new evidence came from a camera aboard a NASA satellite. Time-lapse photos imaged two objects streaking into the atmosphere over Poland and Germany. Frank identified these as clouds of water molecules from disrupted icy minicomets. The clouds had expanded from the house-size minicomets to clouds 3550 miles wide, weighing 20-40 tons. Frank thinks the minicomets come from a cloud of such objects orbiting the sun from earth out to Jupiter and beyond. Why don't they evaporate in the sunlight and near-vacuum of outer space? Perhaps, thought Frank, they are protected by a thin coating of carbon. (Roylance, Frank D.; "Space Snowballs Theory Gains Credence," Baltimore Sun, May 29, 1997. Also: Monastersky, R.; "Is Earth Pelted by Space Snowballs?" Science News, 151:332, 1997. Thanks to all who sent in clippings. There are too many to mention here. Frank' ...
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... " as we now know them back when the universe was very young. In fact, "time" then might have been different from "time" now. This sounds like so much physics-speak; but, seriously, during the birth pangs of the universe, there seems to have been what cosmologists call a "phase change," a mysterious moment when the laws of physics suddenly became more complex. You can reasonably ask: "How can supposedly immutable physical laws change?" The answer seems to be that anything can happen when something is being made from nothing! This apparent plasticity in the laws governing the cosmos is suggested by observations of how galaxies in the early universe were distributed. The standard theory for the origin of the universe predicts that clumps of galaxies of all sizes were created early on. This is not what a survey by S. Sarkar et al, at the University of Oxford, found. A split second after the Big Bang, galaxies were organized in structures about 300-million light years across. The standard model of particle physics cannot account for this preferred size. The theorists' recourse is a phase change, a point in time when the warp and woof of the universe changed; that is, change the rules until they fit. (Chown, Marcus; "In the Beginning," New Scientist, p.7 , April 25, 1998.) Comment. Hang onto your hats. If a phase change happened once, it can happen again. Things may fall up tomorrow. See SF#74 for item entitled ...
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... wind-driven waves.) When large pieces of the Hawaiian Islands slip into the ocean, the entire Pacific Rim is smashed by the resulting tsunamis. In New South Wales, Australia, there is geological evidence that part of this coast was scoured by a Hawaiigenerated tsunami 100,000 years ago. The postulated wave started out about 375-meters ( -mile) high in Hawaii. By the time is reached Australia, it was about 40 meters high. (SF#85) Worse waves may be on tap. A 4,760 cubic mile chunk of the Big Island (Hawaii) is breaking away at the rate of 4 inches per year. This is the Hilina Slump, and it is said to be "the most rapidly moving tract of ground on Earth for its size." The Hilina Slump can move much faster. At 4:48 AM, November 29, 1975, a 37-mile-wide section suddenly dropped 11 feet and slid seaward 26 feet. The result was a magnitude-7 .2 quake and a 48-foot-high tsunami. This was a minor of the slump. If the entire 4,760-cubic-mile block decided to break off, it would probably create a magnitude-9 quake and a tsunami 1,000-feet high. All the coast-hugging cities of the Hawaiian Islands would be swept away. And LOOK OUT Australia, Japan, and California. (Napier, A. Kam; "Landslide," Honolulu , p. 28, February 1997. Cr. H. ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Those Ancient Greek Pyramids That's right. Greek pyramids! On Greek soil, at Hellenikon and Ligourio west of Athens in the Argolid region, are two limestone pyramids that are stylistically very much like those at Giza near Cairo. The big difference is size; the Greek pyramids are only the size of a large room compared to the Great Pyramid's height (with capstone) of almost 500 feet. When excavations were made around the Greek pyramids in the early 1900s, pottery fragments from the Fourth Century B.C . were found, and it was presumed that the pyramids were also constructed then; that is, about the time of Alexander the Great. Recent dating of crystals from internal surfaces of the limestone blocks using thermoluminescence puts the construction times back two millennia. The Hellenikon pyramid dates to 2730 B.C .; the Ligourio, to 2260 B.C . This means that the Greek pyramids were built in roughly the same time frame as the Egyptian pyramids. Why would the ancient Greeks want to build miniature pyramids? The classical scholar Pausanias wrote in the Second Century A.D . that the Hellenikon pyramid was a cenotaph for the dead fallen in a fratricidal battle 4,000 years ago. Nobody believed his story until now. (Hammond, Norman; "Did the Early Greeks Simply Copy the Pyramids of Egypt?" London Times, August 1, 1997. Cr. A.C . ...
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... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Disorder Here Produces Order There Physicists use the word "entropy" to describe the well-observed tendency of the universe to run down; that is, become more disorderly. In some situations, though, the increase in disorder (entropy) in one part of the universe can create order elsewhere. For example, if you add tiny plastic spheres of two sizes to salty water, you will not get a uniform mixture. Instead the larger spheres will pack together into tightly ordered crystaline shapes (representing more order) while the smaller spheres become more disordered. It is like watching cream unstir itself from coffee. It smacks of magic, but it is all within the laws of thermodynamics. This strange "force" exerted by entropy may explain some puzzling biological phenomena, such as the expulsion of nuclei from mammalian red blood cells before they enter the bloodstream as sacks of hemoglobin. The idea being that the increasing entropy of the proliferating hemoglobin molecules (analogous to the smaller spheres) is maximized when the nuclei (large spheres) are squeezed out of the cells altogether. (Kestenbaum, David; "Gentle Force of Entropy Bridges Disciplines," Science, 279:1849, 1998.) Comments. The red-blood-cell example presented in the article is on shaky ground, because while mammalian red blood cells do lack nuclei those of birds and reptiles retain theirs. (See BMC6 in Mammals II .) In ...
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... excavated untold millions of basketfuls of soil which they piled up in impressive mounds. Flat-topped Monk's Mound at Cahokia, Illinois, rivals the Great Pyramid in volume. A casual observer of this huge earthen structure could only conclude that such immense labor was undertaken for some social imperative, such as worship or sacrifice. Perhaps this was the case in North America, but deep in the South Pacific, just east of Fiji, on the islands of Tonga, native peoples scraped large mounds of earth for what seems to be a frivolous purpose: pigeon-snaring ! But bear in mind that carnivory on these romantic Pacific islands was difficult because large game animals were nonexistent. Captured enemies helped solve the protein problem, but pigeons were much more common, and some species were good-sized and delicious. So much so that eventually only island royalty was allowed to catch and eat them. Pigeon poachers were whipped or executed (and maybe eaten?) In fact, pigeon snaring became a royal sport. To this end, starting at least a thousand years ago, the king's loyal subjects grubbed up the thin island soil and piled it up into high mounds. Tonga's pigeon-snaring mounds did not compete with Monk's Mound sizewise, being at most 115 feet in diameter and perhaps 15 feet high. But that's still a lot of dirt. On the tops of the mounds were smaller, beehive-shaped mounds with vertical slits in them large enough to conceal a human. From these blinds, the king and princes would swing nets ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Continent Lost In The Pacific Ocean Our title is also the English title of a book published recently in Japan. The subtitle quoted below implies that we are not discussing the supposed lost continent of Mu. "Riddle of the Submarine Ruins in the Ryukyu Islands" Rather, the underwater site is that introduced in SF#118 and located southwest of Okinawa. It is hardly the size of a continent. The book's author is Masaaki Kimura, and he has filled his book with stunning underwater photographs and diagrams of this "lost continent." Unfortunately, except for a Contents page, which is in English, the rest of the book is in Japanese. We'll have to settle for the Contents page, which is rather revealing. Human Beings under the Sea The Submarine Ruins Discovered Were the Ryukyu Islands a Continent? Discovery of a Civilization Lost in the Sea An Ancient Civilization in Southernmost Japan A Continent Lost in the Pacific Ocean Submersion of the Land and Tectonics of the Earth Hypotheses for the Land Lost in the Pacific Ocean A Utopia Sunk in the Pacific Ocean Pretty inflammatory stuff, so much so that we must be wary indeed! One of the drawings in our photocopy is good enough to reproduce here. The immediate impression, as with many of the underwater photographs, is that surely this structure is artificial. But we must remember that Nature has her playful moods and has deposited simulacra everywhere, perhaps even ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects An Arkansas Tsunami Deposit?Yes, Arkansas is hundreds of kilometers from any ocean. Could a tsunami ever reach Little Rock, or even 120 kilometers northeast of Little Rock where, atop a 76-meter (250-foot) hill are perched giant blocks of sandstone. These blocks range up to 7.6 meters (25 feet) in size and weigh many tons. No native rocks in the area match them. The Ice Age glaciers never reached Arkansas, so they can't be glacial erratics. Where did they come from? One clue is the presence of glauconite in the sandstone. Glauconite is common in marine rocks, so suspicion points toward the Gulf of Mexico. Geologist G. Patterson, University of Memphis, thinks that the huge chunks of sandstone came from coastal Louisiana and were carried some 650 kilometers (400 miles) inland by the giant tsunami raised by the asteroid or comet that smashed into the Yucatan to close out the Cretaceous. That, of course, was when the dinosaurs were forced into oblivion. But could the tsunami really have transported such huge rocks 650 kilometers? (Falk, Dan; "Washed Up," New Scientist, p. 26, November 7, 1998.) Comments. Tsunami debris from the end-Cretaceous impact has been found along the Gulf Coast and on some Caribbean islands. In northeastern Mexico, geologists have found a debris layer 3-meters thick that ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects About As Anomalous As Mounds Can Get The title refers to a circle of 11 earthen mounds located new Monroe, Louisiana; the Watson Break site. Local residents have known about the mounds for years, but archeologists weren't attracted to them until clear-cutting of the trees in the 1970s made the size and novelty of Watson Break all too obvious. Just how anomalous is Watson Break? Archeologist V. Steponaitis, from the University of North Carolina, opined: "It's rare that archaeologists ever find something that so totally changes our picture of what happened in the past, as is true for this case." On what does Steponaitis base such a powerful statement? Watson Break is dated at 5,0005,400 BP (Before Present), some three millennia before the well-known Moundbuilders started piling up earthen structures from the Mississippi Valley to New York State. In other words, the site is anomalously early. Indications are that Watson Break was built by hunter-gatherers, but no one really knows much about them; there's an aura of mystery here. Watson Break consists of 11 mounds -- some as high as a two-story house -- connected by a peculiar circular ridge 280 meters in diameter. The back-breaking labor required to collect and pile up all this dirt is incompatible with the life style of mobile bands of hunter-gatherers. The purpose of the ...
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... Science Frontiers ONLINE No. 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Horizon-to-Horizon Bioluminescent Bubbling Band June 5, 1995. East China Sea. Aboard the m.v . Tokyo Bay enroute Busan to Kaohsiung. "At 1830 UTC whilst the ship was on a course of 218 at 21.5 knots, what seemed to be hundreds of fishing lights were seen right ahead of the ship and stretching from horizon to horizon. As the ship approached them, it became apparent that the lights were bioluminescence. "The appearance was like large single 'blobs' approximately the size of tennis balls, while at the main concentration the water seemed to be 'bubbling up' in a line stretching to both horizons. When the ship passed through the line, the luminescence gave off such a glare, as bright as daylight, that it was possible to read the identification numbers of the containers on the focsle. The duration of the phenomenon was about 5 minutes or 1.5 n.mile." (Hughan, D.S .; "Bioluminescence," Marine Observer, 66:62, 1996) Comment. P.J . Herring, Southampton Oceanography Centre, called this display "a most unusual account which I am unable to interpret." He opined that the blobs were probably cylindrical colonies of luminous sea squirts, but he could not account for the 1.5 -milewide, horizon-to-horizon bright glare and associated bubbling. Reference. For more ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects It can't be true because it violates our ideas!This was the collective opinion of many atmospheric scientists when a satellite experiment found approximately 50% more water vapor at an altitude of 75 kilometers than well-established theory predicted. That was back in 1991. Now, a second satellite experiment of different design has confirmed the existence of this "excess" water vapor. Most geophysicists are perplexed, to say the least. Not L. Frank, though, because these experiments are in line with his theory that the upper atmosphere is continuously pelted by house-size, fluffy, icy comets -- some 20 each minute. (SF#112) Frank asserts: "When you get that excess of water vapor up there, it just can't come from the Earth. It must come from space." Even so, other geophysicists are reluctant to accept Frank's icy comets -- that would be too much "crow" to eat! One point levied against Frank's icy comets is that they would introduce more than three times the amount of water vapor actually measured. M. Summers, a theoretician at the Naval Research Laboratory, summed up mainstream opinion: "There's definitely something very unusual going on in the mesosphere that we don't understand at all, but I'm not even close to saying this supports the small-comet hypothesis." (Kerr, ...
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... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects And They Went Forth And Multiplied Archeologists excavating the ancient city of Hazor, in Israel, have uncovered a handy-size chip made from red clay and engraved with symbols. This 3,000-yearold artifact has turned out to be a multiplication table! (Anonymous; "And in Israel," USA Today , July 30, 1996. Cr. COUD-I ) COUD-I = Collectors of Unusual Data-International. From Science Frontiers #109, JAN-FEB 1997 . 1997-2000 William R. Corliss ...
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... their dignity to investigate. But the mysterious moving rocks on Racetrack Playa in Death Valley have lured them out of their ivied halls. We quote from the abstract of a report seen in the mainstream journal Geology . "Sharply angular boulders as large as 320 kg [700 pounds] sit on the Racetrack Playa, Death Valley, California; trails leading to them indicate that the rocks have moved large distances. The process has never been witnessed. Although high winds and a wetted surface seem necessary, controversy persists about the need for other conditions, especially ice sheets. On the basis of experiments with a wetted Racetrack surface (soft mud about 3 cm deep), we find the effective coefficient of friction to be surprisingly high, about 0.8 . Movement by wind alone of moderate-sized (20 kg) rocks with cubic shape requires sustained winds close to the ground of about 80 m/s (about 180 mph). Larger flat-lying rocks require much higher winds." The authors of this paper, J.B . Reid, Jr., et al, precisely mapped a large number of the enigmatic tracks. Their maps revealed many "mated pairs" of rocks, whose curving tracks matched near their origins to within a few centimeters, even though the tracks were separated by up to 830 meters (over 0.5 mile!). Apparently these mated rocks were locked into a huge ice sheet resting -- almost floating -- on slippery mud. Sustained winds blowing over the large areas of ice generated enough horizontal force to propel the ice ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects High-Flying Catfish Anomalies crop up in out-of-the-way places and unusual publications. A radio amateur (Dave, K1WHS) noticed that his 432-MHz beam was higher tha normal. Checking his tall antenna, he saw something dangling from the horizontal elements. It turned out to be a good-sized, desiccated catfish. Dave's antenna is 60 feet high and miles from any lake or stream. (Anonymous; QST , p. 21, February 1998. Cr. L.M . Nash) From Science Frontiers #116, MAR-APR 1998 . 1998-2000 William R. Corliss ...
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... like a flare. It appeared as yellow, lit-up gases. These seemed to take shape, becoming brighter and denser, and then move downwards in the same direction as the plane (south). About two seconds after disappearing behind the roof there was an ear-splitting explosion. To my relief the plane reappeared unscathed." At the time of the lightning strikes, the jet was passing over a factory, where a fork-lift driver saw a dazzling blue-white ball bounce along the factory roof and enter the building. Many workers inside were treated to an amazing pyrotechnic display as the ball made its way through the building. "It entered the factory through an upand-over door and was seen as a 'pulsating light' or a 'fiery sphere the size of a tennis ball'. Once inside the building it moved very rapidly for two seconds, following the course of the overhead girders without touching them and lighting up each girder 'blue, white and orange' as it raced along. It produced what one witness described as 'unbelievable sparks'. Intensely bright, the object illuminated the whole printing works and was seen by about 40 people. After thus racing around the interior of the building for two seconds, the 'fireball' hit a window which glowed orange, and the ball disappeared with a bang so loud that the report was even heard by a deaf worker." (James, Adrian, and Meaden, Terence; "Ball Lightning at Tewkesbury, Glos. on 7 June 1996," Journal of Meteorology, U ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Plant Life On Mars?" Strong evidence that plant life exists on Mars was advanced today by Earl C. Slipher, American astronomer, after observation of the planet, which is closer to the earth this month than at any time since 1924. .. .. . "His theory is founded on an apparent change in the planet's surface, regarded as his most important discovery. "The huge dark spot (Solis Lacus) or the Great Eye of Mars, seems to have assumed a shape not observed for fifty years, if ever before. Mr. Slipher indicated that this was strong evidence that plant life existed on the planet, and suggested that the change was due to fresh vegetation over an area roughly the size of the United States." (Anonymous; "Evidence of Plant Life on the Planet Mars Is Announced by an American Astronomer," New York Times, July 21, 1939. Cr. M. Piechota.) Comment. What a difference 59 years make! Could those tiny structures in ALH 84001 be fossilized pollen grains? From Science Frontiers #116, MAR-APR 1998 . 1998-2000 William R. Corliss ...
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... are unimpressive when brought to the surface -- just dirty, fizzy ice. However, taken together, they contain more carbon than all the world's oil fields, perhaps much more. Most estimates fall between 1,700 and 11,000 billion tons, but there is one scientist who pegs these cold-storage carbon deposits at 4,100,000 billion tons. In comparison, human releases of carbon to the atmosphere via the burning of wood, gas, coal, and even the collective flatulence of all the planet's animals are trivial. Geological evidence confirms that past climate swings were associated with large injections of carbon into the atmosphere and oceans. A major contributor to these "carbon burps" may be decomposing methane hydrate. Until recently, climatologists have questioned the sizes of gas-hydrate deposits, but cores extracted from the Blake Ridge off the Carolina coast confirm the immense amounts of gases precariously locked up in sea-floor sediments. The stratum of gas hydrates in the Blake Ridge alone covers 26,000 square kilometers -- enough gas is there to supply the U.S . for 107 years. In biological terms the Blake Ridge's carbon is equal to 7% of the carbon locked up in all terrestrial biota -- animals, trees, grasses, etc. And the Blake Ridge gas hydrates represent a miniscule fraction of the planet's frozen gas hydrates. (Dickens, Gerald R., et al; "Direct Measurement of In Situ Methane Quantities in a Large Gas-Hydrate Reservoir," Nature, 385:426 ...
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... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A VANISHED PLANET?Almost every week, it seems, a new Texas-sized object is discovered in the outer solar system. In the inner solar system, however, some astronomers are finding "holes" where planets seem to have been ejected by unknown forces. D. Christodoulou, Louisiana State University, found one such "hole" serendipitously. He was studying how the sun and the planets might have condensed from the (hypothesized) cloud of primordial gas and dust. Factoring in gravity, rotation, and magnetic fields, he found the cloud condensing in concentric rings at just the right locations for protoMercury, proto-Venus, and proto-earth. The fourth ring, however, did not correspond to any existing planet, and the position of proto-Mars was off the mark. But the asteroids and outer planets fell rather neatly into place. The implication of these calculations is that some turmoil in the early inner solar system cast out one planet and dislocated Mars. (Hecht, Jeff; "Did Extra Planet Vanish into Outer Space?" New Scientist, p. 18, June 14, 1997.) Comment. These are sour notes in the "music of the spheres," but don't be overly concerned; these are just calculations based upon many assumptions. Calculated positions of rings of condensed dust and gas compared to actual planet locations. From Science Frontiers #113, SEP-OCT ...
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... considered rather dull animals with miniscule initiative, have invented a scheme to thwart cattle guards. When they see greener pastures, in particular succulent gardens on the nether side of a cattle guard, one sheep volunteers (? ) or is picked (we don't know which). It altruistically flings itself across the grid and stoically endures while the rest of the flock trots across its body. The selfless sheep is usually marooned on the wrong side of the grid, but at least it has the pasture all to itself. (Anonymous; "Selfless Sacrifice Puts Sheep in Clover," London Times, March 20, 1997. Cr. A.C .A . Silk.) Comment. Yes, contrary to some animal behaviorists, animals can be altruistic. Furthermore, sheep can size up a problem, conceive a solution, and act collectively. Reference. The question of altruism in mammals is discussed in Section BMB4 in our Catalog Mammals I . To order, visit here . From Science Frontiers #113, SEP-OCT 1997 . 1997-2000 William R. Corliss ...
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... regulate the atmosphere. Lenton answers that there must be feedback loops from the planetary environment that steer the evolution of individuals in the "proper" direction. Lenton goes on to explore some of these many feedback mechanisms; one obscure loop involves the production of dimethyl sulfide by marine phytoplankton. Truly, it is a tangled bank! All of the feedback loops imply that the evolution of life forms is constrained (or dictated) by the need to keep the planet livable and not to simply leave the most progeny, but rather the progeny that will best serve Gaia! (Lenton, Timothy M.; "Gaia and Natural Selection," Nature, 394:439, 1998.) Comments. The obvious implication is that all life forms, including humans, are parts of a planet-sized super-superorganism. This leads to the oft-stated and possibly true suspicion that, if a species endangers Gaia by creating ozone holes and undue global warming, the super-superorganism will take appropriate steps -- new diseases, for example. From Science Frontiers #120, NOV-DEC 1998 . 1998-2000 William R. Corliss ...
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... for centuries. This severe erosion led R.M . Schoch to proclaim that the Sphinx is actually thousands of years older than the Giza pyramids, much to the annoyance of conventional Egyptologists. (SF#79) Be that as it may, no one denies that the Sphinx's head and body are quite different. Riddle 2. The head of the Sphinx seems too small for the body. None of the many other sphinxes carved by the ancient Egyptians show such an error of proportion. To answer both riddles, R. Waters suggests that the original Sphinx was actually carved as a complete lion several millennia before the Giza pyramids were erected. It was these later pyramid builders -- those master craftsmen in stone -- who recarved the head into human form, necessarily reducing its size relative to the body. (Waters, Richard; "The Lion King," Fortean Times, p. 54, no. 91, October 1996) Comment. Waters is not the first to reinterpret the Sphinx's head. Others have noticed that the surviving facial features of the Sphinx do not match those of the Pharaoh Chephren, the supposed builder of the adjacent Great Pyramid. J.A . West, in his 1979 book Serpent in the Sky , advances this idea. The lion-head surmise has also been mentioned in the recent TV documentary Mystery of the Sphinx . Another suggestion is that the surviving features more closely resemble those of Subsaharan Africans. (SF#83) (Top) The sphinx today. (Bottom) Was the original Sphinx really a lion ...
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... massive forces that tug on the inner core. And because the outer core has a relatively low viscosity, the inner core can spin freely." (Stokstad, Erik; "Earth's Heart Is in a Spin," New Scientist, p. 18, July 20, 1996. The basic paper is: Song, Xiadong, and Richards, Paul G.; "Seismological Evidence for Differential Rotation of the Earth"s Inner Core," Nature, 382:221, 1996) Comments. Awesome as this gigantic natural electric motor may be, it doesn't challenge any paradigms; in fact, it reinforces current notions concerning the origin of the geomagnetic field. The anomalist, however, inevitably asks questions and makes iconoclastic connections. Why couldn't this planet-size piece of rotating machinery actually be a generator rather than a motor? The kinetic energy of the faster-spinning inner core might actually create the geomagnetic field. What happens when the geomagnetic field reverses, as it has often done according to the magnetostratigraphic record? Does the earth's motor go into reverse? If the inner core can slip relative to the crust and mantle, why cannot the crust-plus-mantle slip, too -- perhaps catastrophically? Pole-shift proponents will like this idea! *Title idea from A. Rand's Atlas Shrugged . Of course, Rand's hero was talking about a different kind of motor. From Science Frontiers #108, NOV-DEC 1996 . 1996-2000 William R. Corliss ...
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... 5 x 107 square kilometers). This is called the "Australasian strewn field." Such a recent cataclysm must have left a large and inescapable crater somewhere. The problem is that no one has yet found it. (Ref. 1) Many lines of evidence suggest that the missing crater is in Indochina. C.C . Schnetzler and J.F . McHone located four likely structures in Laos from Landsat images. However, visits to these areas found no evidence of an impact. (Ref. 2) So, this mystery persists. How were the Muong Nong tektites formed? Muong Nong tektites are unusually large (up to 24 kilograms), layered tektites. They are found in an area 1,000 kilometers in extent from Hainan Island to southern Indochina. Their large sizes imply that they are probably close to the missing crater mentioned above. Still unresolved is whether they were originally puddles of molten rock near the elusive crater or local ejecta analogous to volcanic bombs. (Ref. 1) Is the "age paradox" finally resolved? Some Australian geologists have stratigraphically dated the Australasian tektites as being just a few thousand rather than 770,000 years old. (SF#8 ) The 770,000-year figure is derived from the presence of Australasian microtekites at the Brunhes-Matuyama magnetic reversal and is, therefore, a "magnetostratigraphic" date. Recent excavations by now seem to confirm R. Fudali's assessment that all tektites and microtektites in the Australasian strewn field are definitely 770,000 years old. (Ref. 3) References Ref ...
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... they never, never escape to the outside world. It was, therefore, counterintuitive when R. Laughlin proposed in 1982 that fractional electrical charges actually could show up elsewhere in physics. The phenomenon that suggests this possibility is the Fractional Quantum Hall (FQH) effect. Physicists reluctantly accepted the likelihood of fractional charges in this well-verified phenomenon; but the experiments demonstrating fractional charge were a bit esoteric -- the fractional charges were not "palpable" enough. Two new experiments have made fractional charges much more tangible. When a layer of electrons, held just above absolute zero, is subjected to a powerful magnetic field, you can almost "hear" the fractional charges. The signals from these experiments have been likened to hail hitting a tin roof. Just as you can gauge the size of hailstones from their impact, so you can estimate the electrical charges involved in these experiments -- they are 1/3 that of the electron. (Ehrenstein, David; "Slicing an Electron's Charge into Three," Science, 277:1766, 1997. Also: Kane, Charles L., and Fisher, Matthew P.A .; "A Shot in the Arm for Fractional Charge," Nature, 389:119, 1997.) Comment. Is there nothing in the subatomic world that is indivisible? From Science Frontiers #115, JAN-FEB 1998 . 1998-2000 William R. Corliss ...
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... Great Pyramid, was even born! One of these structures is 5,000 years old. It is located at Stanton Drew, in southwestern England. But tourists at the site see only the Great Circle of standing stones, which is impressive enough but only the tip of the iceberg, so to speak. What is more spectacular is "seen" only by sensitive magnetometers. These instruments detect faint, ghostly remains of the magnetotactic bacteria that consumed the giant oak pillars that graced this site five millennia ago. The soil inside the Great Circle reveals that there were once 400-500 oak pillars on the site. These massive cylinders were probably a meter in diameter, 8 meters (26 feet) high, and weighed 5 tons each. The rings of pillars occupied an area about the size of a football field (100 meters in diameter). The Stanton Drew woodhenge was probably too large to have been roofed, but the oak columns might have been carved or decorated. Why would anyone cut, haul, and array hundreds of massive oak pillars in nine concentric circles? Obviously, the ancient Britons used this oaken temple to seek help from supernatural powers! Well, that's what the archeologists say, but who really knows? (Hawkes, Nigel; "Woodhenge Find Rivals Stone Circles," London Times, November 11, 1997. Cr. A.C .A . Silk. Also: Aveling, Elizabeth; "Magnetic Trace of a Giant Henge," Nature, 390:232, 1997.) Contrary to the London Times article, Woodhenges are ...
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... proffers four important natural phenomena that may involve natural fission reactors. Geomagnetic reversals . In the deep earth, where pressures and densities are high, natural nuclear reactors may generate intermittent bursts of heat -- just as they did at Oklo -- and thereby cause the earth's dynamo to falter and reverse. Planetary heating . Jupiter, Saturn, and Neptune emit much more energy than they receive from the sun. Natural nuclear reactors could be the reason. Stellar thermonuclear ignition . Astronomers assume that the high temperatures required to ignite the thermonuclear reactions powering stars come from gravitational collapse, but this source does not seem adequate to some scientists. Nuclear fission reactors could ignite stars just as they do H-bombs. Missing matter . Natural nuclear reactors are finicky. There may be many star-sized, non-luminous objects out there that were never ignited and that we cannot see through our telescopes. (Herndon, J. Marvin; "Examining the Overlooked Implications of Natural Nuclear Reactors," Eos, 79:451, 1998.) Comments. Two additions to Herndon's list. Evolution of terrestrial life . Nuclear reactors produce copious mutagenic radiation. They could have accelerated the evolution of life, especially during the Cambrian Explosion. (See SF#32) Thermal plumes . Deep-seated natural nuclear reactors may create the thermal plumes said to be responsible for such surface hot spots as Iceland and Hawaii. Disposition of six of the Oklo 2-billion-year-old natural nuclear reactors. (From: Anomalies in Geology). From Science Frontiers #121, ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More On The Mekong Mystery Those basketball-sized lights erupting from the Mekong River, Thailand, (SF#114) turn out to be a well-known annual event. Their official name is: the Nekha Lights. They have even been filmed and shown on Thai TV. These weird luminous displays occur during the October full moon and last only about 30 minutes. The lights rise out of the river and nearby rice paddies, but only along a small stretch of the river straddling the Thailand-Laos border. (Anonymous; "Mekong Mystery," New Scientist, p. 109, December 20/27, 1997.) Comment. Some marine species, such as the paolo worms, rise to the surface annually to spawn under a full moon. Could the Mekong Lights have a biological origin? From Science Frontiers #116, MAR-APR 1998 . 1998-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The world's largest "playa-slider" furrow Most studies of playa sliders (" moving rocks") have been conducted at Racetrack Playa, near Death Valley, California. There one finds good-sized rocks at the ends of long tracks they have made when some force has propelled them across the flat playa surface. What has moved these rocks, some of which weigh 700 pounds? The current consensus holds that wind is the motive force, but that it is inadequate to move the rocks directly. Instead, the wind acts upon sheets of ice in which the rocks are frozen. As these sheets of ice are moved across the playa, the keels of the frozen-in rocks leave those curious trails that have intrigued Forteans for many decades. (SF#109) Playa sliders have also been found at Magdalenasmeer Playa in South Africa, and in Nevada and Tunisia. In a recent issue of Geology Today, C.C . Reeves, Jr., Texas Tech University, adds to the list a playa at Double Lakes, Texas. Of special interest at Double Lakes is not the rocks and other debris blown across the playa but a discarded hotwater tank. It, too, is a playa slider. It first left a trail a few hundred meters long when it was frozen in an ice sheet spigot down, with the spigot furrow quite obvious. The ice sheet then melted, and the tank ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mekong Mystery The following question was posed in the September 6 issue of New Scientist. "My wife and I saw a puzzling sight in October 1994, in the Mekong River near Nongkhai, Thailand, during a full moon, in the evening. Lights appeared under the water for a few hundred metres along the Mekong River. They rose from the bottom of the river and floated to the surface, then shot like missiles into the sky and out of sight. They were the size of beach balls, and many flew out of the water every few minutes, surfacing about 10 metres apart. I am told that this happens every year at the same time. Locals say it is caused by a serpent releasing her eggs. Does anyone know of this phenomenon?" A. Pentecost answered. He noted first the similarity of the Mekong phenomenon to the will-o '- the-wisp or ignis fatuus. The usual explanation of ignis fatuus blames the spontaneous combustion of marsh gas. However, the Mekong lights are initially seen under the water where there would not be enough oxygen to support combustion. Pentecost suggested instead phosphorescent bacteria or the "cold flame" of phosphorus vapor which might form through diphosphane decomposition. (Pentecost, Allan, et al; "Mekong Mystery," New Scientist, p. 96, September 6, 1997.) References. The Mekong phenomenon may be allied with the many examples of luminous ...
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... to the satellites of giant planets, may have internal heating but no effective 'Sun'. If Carnot life is possible, it may well have evolved in such dark and distant places -- making life abundant throughout the Universe. Indeed, our distant descendants may be able to harness Carnot biochemistry to sustain themselves on geothermal or residual browndwarf warmth when the Sun finally grows dim." (Jones, David; "The Dark Is Light Enough," Nature, 385:301, 1997.) Comments. To our knowledge, those who search for extraterrestrial life do not consider the possibility of Carnot creatures and wouldn't recognize them if they stumbled across them or their signals. For example, Carnot creatures might emit infrared signals rather than radio waves; and they might be immense in size. (See related item under ASTRONOMY in this issue.) From Science Frontiers #111, MAY-JUN 1997 . 1997-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Broadside Against Small Icy Comets In a late-1997 issue, Geophysical Research Letters published a group of five papers that detailed five different lines of evidence that are inconsistent with the claim by L.A . Frank and J.B . Sigwarth that the earth is bombarded daily by 30,000 house-size icy comets. If such bombardment has really been occurring, scientists would have to rethink the origins of the earth's oceans, terrestrial life, and the formation of the solar system. No wonder the icy-comet hypothesis is strongly challenged! Three of the more interesting points made by this group of papers are as follows: Our moon could not escape the icy-comet bombardment. Roughly 1,000 craters 50 meters in diameter and splashes of debris 150 meters in diameter must occur each. There is no evidence that the moon is thus afflicted. Comets also carry the noble gases argon, krypton, and xenon. These gases should accumulate in the atmosphere as the comets disintegrate. The amounts of these gases actually measured are 10,000 times less than those the postulated bombardment would produce. The icy comets should break up near the earth and produce clouds of ice crystals. Sunlight reflected from such 30-ton clouds would be brighter than Venus and easily visible before they disperse. Such objects are rarely seen, implying that small icy comets do not exist in the numbers claimed. Preceding this series of five ...
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... per hour. This velocity would be comparable with that of another very speedy "ball of light." May 25, 1997. Near Loco, Oklahoma. In what might be called a "video replay" of the above phenomenon, L. Lamphere caught a similar fast-moving "object" near a tornado-spawning storm. He and his team had a digital video camera trained on the storm and were taking time-lapse still photos. Lamphere reported: "The ceiling was maybe 900 feet. We were about four or five miles from the storm, which was tracking southeast. The object was well-defined and well-lit, but was obscured briefly by scud clouds. It dipped and bobbled in its trajectory before it flew into a storm known to contain hail the size of baseballs and then reemerged, apparently undamged. "Scientists at the Astrophysics Department at the University of Oklahoma believe the object was solid and may have been traveling between 9,000 and 20,000 mph." (Anonymous; "Image on Storm Video Raises Questions," Dallas Morning News, June 21, 1997. AP item. Cr. D. Phelps.) Comment. Just one high-speed "object" might be dismissed as, say, a photographic artifact. But, when two are caught by cameras imaging violent meteorological events, we must conclude that something unusual is going on. From Science Frontiers #113, SEP-OCT 1997 . 1997-2000 William R. Corliss ...
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... Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ball Lightning Collides With Car Summer 1991. Southern Bavaria, Germany. R. Urbanek, a teacher from Wasserburg, recalls her encounter with ball lightning. "I was with a friend in the area of Traunstein. My friend drove a minibus...150-200 meters...ahead of my car. Golf and several other cars were following behind me. It (had been) raining with heavy lightning and thunder. I did not drive at normal speed in such a weather...Then came a straight stretch of road with a bicycle path to the right, and an open wide field...Suddenly I saw a bright green, phosphorescent...ball about the size of a medical training ball, that dropped to the ground behind the minibus...It fell to the road and rolled towards me . I knew immediately it was ball lightning, and from school physics I knew a car acts as a Faraday cage. So I kept my feet to the floor mat and grabbed the wheel with both arms. 3 to 5 seconds passed until the ball reached my car. It came in a straight line, with a slight deviation to the right (as seen from my position). When the ball caught my car at the right front side, it gave the vehicle a strong shock or jerk, as if I had driven against an obstacle . All that was on the right side of me lit up bright green -- the hood, ...
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... Science Frontiers ONLINE No. 97: Jan-Feb 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Football-sized snowflakes "Now accepted as fact in the weather records was the report that the Siberian town of Bratsk in the winter of 1971 got snowflakes as big as footballs." (Anonymous; San Francisco Chronicle, September 25, 1994. Cr. J. Covey) Comment. Many such reports crop up in the weather journals. See GWP2 in our catalog: Tornados, Dark Days, Anomalous Precipiation. (Description here .. Bear in mind that these "giant" snowflakes are really aggregations of thousands of normal-size flakes. From Science Frontiers #97, JAN-FEB 1995 . 1995-2000 William R. Corliss ...
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... Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Dwarf mammoths in ancient egypt?Dwarf mammoths may have survived in northeastern Siberia into historical times. (SF#87) Given this possibility, B. Rosen wonders whether the ancient Egyptians might have known of them. He points to some evidence that they might have. For example, one scene painted on the tomb of one pharaoh represents tributes brought from afar to Egypt, including a parade of exotic animals. One of these animals is an obvious bear. This animal would have intrigued the pharaoh because bears and ancient Egyptians did not coexist. Just as exotic to the pharaoh would have been the miniature elephantid following just behind the bear in the painting. It was about the same size as the bear. Since this elephantid was depicted with large tusks, it was definitely not an immature. It also displayed the peculiar domed skull typical of mammoths and which is absent on African elephants. Could it have been a late-surviving dwarf mammoth brought all the way from Siberia? Of course, there are alternative interpretations. Asian elephants do have domed skulls, and the artist could have deliberately drawn the elephantid at a reduced scale. However, other animals are realistically sized. (Rosen, Baruch; "Mammoths in Ancient Egypt?" Nature, 369:364, 1994.) From Science Frontiers #95, SEP-OCT 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 96: Nov-Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The moon: still partly molten?Our long-time impression has been that our moon is a cold body, solidified eons ago, when its primordial ration of heat radiated away. But the lunar satellite Clementine -- tracked with great precision by lasers on earth -- undulates suspiciously as it orbits the moon. "The overall shape of the orbit traces the broad tidal bulges raised on the moon by Earth and the sun; the size and timing of the bulges depend on the moon's rigidity. The Clementine data show that somewhere, probably deep in its interior, the moon is not quite as rigid as solid rock would be. Most likely, part of the rock is still molten." (Kerr, Richard A.; "Clementine Mines Its First Nuggets on the Moon," Science, 264:1666, 1994.) From Science Frontiers #96, NOV-DEC 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 97: Jan-Feb 1995 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The "inscribed wall" at chatata, tennessee Whence the 200,000 logs of chaco canyon? Astronomy How can some stars be older than the universe itself? Did the universe have a beginning? Solar-system puzzles Biology Fruit dupe Possible survival of giant sloths in south america The early (and persistent) insect catches the bird! Geology The earth's most common topographical feature: abyssal hills The 627-foot water slide between australia and india The age of fire and gravel Geophysics Football-sized snowflakes A LINE IN THE SEA Rubber duckies chase nike shoes across pacific Psychology A MAJOR STUDY OF DOWSING Mentally influencing the structure of water Does the past influence the future? ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Solar-system puzzles In the 30-or-so years that space probes have been visiting the solar system's other planets, much has been learned, but there are now more questions than ever. We now pose four of these -- none of them could even have been asked before the space program. Not only is the magnetic axis of Uranus tilted grotesquely away from the planet's axis of rotation, but the latter lies almost in Uranus' orbital plane. Q1. Why are the magnetic fields of Neptune and Uranus tilted at such grotesque angles with the axes of rotation? A1. Probably because of giant impacts. Q2. "Why does Mercury have an iron core twice as massive, relative to its size, as any other rocky planet?" A2. Probably because a giant impact tore off its rocky mantle. Q3. "How can Neptune sustain 1400-kilometer-per-hour winds -- faster than Jupiter's -- when it is so far from the sun, whose heat powers atmospheric circulation?" A3. ?? Q4. "How could Mars -- now more than 50 C below freezing -- have been warm enough in its early days to have water flowing on its surface?" A4. Possibly due to geothermal heat. (Kerr, Richard A.; "The Solar System's New Diversity," Science, 265:1360, 1994.) Reference. A large collection of solar-system anomalies exists in our catalog volume: ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Blindsight Also Occurs In Monkeys Blindsight is an eerie phenomenon. Humans with cortical blindness; that is, they have lost their primary visual cortex through brain damage or disease; can still detect objects and yet be unaware of them. Doesn't sound right, does it? The situation is this: A person, apparently totally blind, can somehow discern the location, form, and size of objects, but they will swear that they "see" nothing at all. In fact, they are blind by all tests. They have blindsight. One explanation of blindsight maintains that the visual cortex has not been totally destroyed, and that functional remnants remain. In scientific terms, blindsight represents "suboptimal functioning of the primary visual cortex." But now, A. Cowey and P. Stoerig report that they have totally removed the primary visual cortex from monkeys' brains. (Something one would not try with humans!) Tests with the visual cortex-less monkeys demonstrated that they possessed blindsight. Therefore, blindsight does not seem to be "suboptimal functioning" of a damaged brain -- at least in monkeys. Blindsight thus remains a mysterious biological function. How do blindsighted humans detect objects of which they are not visually aware? Somehow information about the visual world appears in the brain. (Cowey, Alan, and Stoerig, Petra; "Blindsight in Monkeys," Nature, 373: 247, 1995. Also ...
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... Science Frontiers ONLINE No. 100: Jul-Aug 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When Humans Were An Endangered Species At one point during the last 400,000 years, the human population worldwide was reduced to only about 10,000 breeding men and women -- the size of a very small town. What caused this population "bottleneck"? Did a population crash engulf the entire globe. If not, who was spared? Such questions arise from a surprising observation: Human DNA is remarkably uniform everywhere humans are found. This hidden genetic uniformity is difficult to believe if one strolls through a cosmopolitan city like New York or Paris. Nevertheless, compared to the DNA of the great apes, whose mutation rates should be close to ours, human genes on the average show far fewer mutations. Human DNA from Tokyo and London is more alike than that from two lowland gorillas occupying the same forest in West Africa. Harvard anthropologist M. Ruvolo has commented: "It is a mystery that none of us can explain." The clear implication is that humans recently squeezed through a population bottleneck, during which many accumulated mutations were wiped out. In a sense, the human race began anew during the last 400,000 years. Unfortunately, DNA analysis cannot say where the very grim reaper came from. (Gibbons, Ann; "The Mystery of Humanity's Missing Mutations," Science, 267:35, 1995.) Comment. The hand that wiped the slate clean, or nearly so ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Long-lived bubble in the atmosphere Artist's concept of the many luminous bubbles that floated among observers at Ringstead Bay. August 4, 1984. Winchester, England. H. Curtis gives us a firsthand account of another one of those strange bubble-like phenomena usually associated with electrical atmospheric disturbances. "In August 1984 I had just left work at 5.30 p.m . and was walking along an unfrequented side street as a short cut to get to my bus. The weather was cloudy and sultry, but there had been no reports of thunder in the area that day. I came to a junction in the pavement which led only to car-parking for buildings lying farther back when a bubble about the size of a tennis ball sailed out of this side-way, in a straight line, about the level with my shoulders, at a distance of some five or six feet. I stared at it in amazement, for where could a bubble have come from at such a place and time?" "I was further amazed that it did not disintegrate...While gazing at the bubble it seemed to me that there was a dark band round it, which I interpreted as being a reflection of the tarmac road, although subsequently when experimenting with childrens' bubble mixture I discovered that bubbles never reflect anything so discernible." "The bubble proceeded at its original speed, curving around me, and drifting down the centre of the road in the direction from which I had come ...
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... Science Frontiers ONLINE No. 92: Mar-Apr 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Unidentified Light January 14, 1993. Eastern North Pacific. Aboard the m.v . B.P . Adventure , Panama to Chiba. "At 0235 UTC the phenomenon shown in the sketch was first seen about 15 above the horizon, bearing 265 . It was initially thought to be a downward pointing spotlight from an aircraft: it was bright (nearly white), conical in shape and about 1 high. During further observation the shape slowly enlarged, becoming more bell-shaped with a darker elliptical patch at the bottom. As it increased in size, the shape faded away and moved slowly towards the horizon in a slightly southerly direction before disappearing just above the horizon at 0254, bearing 260 . "The maximum height reached by the shape was about 5 and throughout the observation stars could be seen through it while at one point it was nearly obscured by cloud of which there was 1 okta. The only other bright object nearby was Venus, being slightly higher and to the south, bearing 248 , elevation about 20 . Visibility was excellent as about 10 minutes after the observation a ship was spotted bearing 280 at a distance of 16 n.mile. The observers felt that the shape was too regular to be a cloud and had no real idea of its origins." (Peacock, K.E .; "Unidentified Light," Marine Observer, 64:17, 1994.) From Science Frontiers # ...
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... Science Frontiers ONLINE No. 93: May-Jun 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects From Dust Unto Dust This Biblical assertion may be right on the mark, but in a sense that is slightly different from what is usually meant. The "first" dust may not have been terrestrial dust but interplanetary dust. Let us commence with long-winged U2s cruising at 20 kilometers altitude or more. Collectors coated with silicone oil are deployed. To them stick tiny bits of interplanetary and interstellar debris that have been caught by earth's gravity and are slowly drifting downward in the atmospshere. Some of these micron-sized particles come from asteroid collisions; others from the disintegration of comets. This rain of cosmic matter is not negligible; the earth harvests about 40,000 tons annually from the fertile fields of outer space. "Fertile?" Yes, outer space is a vast biochemical retort. D. Brownlee, R. Walker, and others: ". .. suggest that interplanetary dust has probably carried organic matter to Earth since the early aeons of the solar system. The complexity of the organic molecules found on these particles has fueled the imaginations of many who ponder the role extraterrestrial matter may have played in the prebiological evolution of organic material on the primordial Earth." Beyond these conjectures, several other things about interplanetary dust particles bother scientists: "' What is surprising,' Walker notes, 'and still not understood, is the fact that the organic molecules we see in the dust particles are ...
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... startling to say the least. Huge bulges hundreds of feet high and hundreds of miles in extent appear when satellite radar altimeter data are plotted. Equally large depressions in the ocean surface also show up -- none obvious to surface observers. This unexpected macrostructure of the ocean surface is shaped by variations in the strength of the earth's gravitational field and sea-bottom terrain. Wherever the gravitational field is stronger, it creates a depression on the fluid surface. German geophysicists, in fact, have drawn a global map of the ocean's large-scale topography, as measured from the European Space Agency's ERS-1 satellite. The surface of the world ocean departs wildly from a smooth sphere. On their colored map: "Brilliant pink and red areas are continental-size mounds of water most notable northeast of Australia, where the sea topography is up to 85 meters (280 ft.) higher than the standard ocean level. Just to the west near India, deep blue indicates a 105-meter (346-ft.) deep depression in the sea surface. Major differences in the gravity fields and terrain underlying the two regions cause a variation of 190 meters (627 ft.) in sea surface topography between these two adjoining areas." (Covault, Craig; "ESA Radar Scans Global Ocean," Aviation Week , p. 42, October 24, 1994. Cr. J.S . Denn.) From Science Frontiers #97, JAN-FEB 1995 . 1995-2000 William R. Corliss ...
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