134 results found.
... 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 The Age Of Fire And Gravel Back in 1883, I. Donnelly wrote his seminal Ragnarok , to which he attached as a subtitle: The Age of Fire and Gravel . He hypothesized that all those sheets of unconsolidated rocky debris strewn across the planet--called the "drift" -- were the consequence of impacts of comets. But in Donnelly's day, all geologists were uniformitarians and wedded to glacial theory. Donnelly's "age of fire and gravel" was really a succession of Ice Ages. Quite a difference in mechanism! Glacial theory, however, has difficulty in explaining apparent glaciations during periods when the earth was supposed to be very warm. Nor does it account easily for glacial-like debris in equatorial regions. With the current ascendancy of "impact geology," some brave geologists are reinterpreting supposed glacial deposits in terms of sheets of ballistic ejecta from the impacts of comets and/or asteroids. Modern estimates of terrestrial cratering suggest that 10% of our planet's surface could be covered by 10+ meters of ejecta, and 2% by 200+ meters. Now that's a lot of ejecta! (Rampino, Michael R.; "Tillites, Diamictites, and Ballistic Ejecta of Large Impacts," Journal of Geology, 102:439, 1994.) Comment. The Ice Ages won't be melted completely away by such reinterpretations. Nor will I. Donnelly ...
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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 Lunar Crater Chains The recent breakup of comet Shoemaker-Levi 9 into a long procession of fragments that subsequently crashed into Jupiter (SF#95) causes one to wonder whether similar events have occurred elsewhere in the solar system. On bodies with solid surfaces, the impacts of such processions would likely result in chains of craters. Jupiter's moon, Callisto, in fact, displays a dozen or so crater chains that might be attributed to processions of projectiles. The crater chain on the floor of the lunar crater Davy (Nasa) How about our own moon? H.J . Melosh and E.A . Whitaker have studied the close-up lunar photos and found two good candidates. The more spectacular lunar crater chain stretches 47 kilometers across the floor of the crater Davy. This chain consists of about 23 pockmarks each measuring 1-3 kilometers in diameter. A similar, more degraded chain is found in the crater Abulfeda. Melosh and Whitaker suggest that: ". .. the Davy and perhaps the Abulfeda chains were created by tidally disrupted 'rubble pile' asteroids." (Melosh, H.J ., and Whitaker, E.A .; "Lunar Crater Chains," Nature, 369: 713, 1994.) Comment. It is only natural to ask if the earth itself also bears the scars inflicted by similar processions of celestial debris. In SF#80, we described one ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Huge fireball explosion in 1994 This remarkable event was mentioned by C. Keay in his review of D. Steel's book Rogue Asteroids and Doomsday Comets . It seems to have escaped or been ignored by the scientific press. We quote from Steel's book, in which he complains that such events get little publicity despite their ominous implications for the future of humanity. "It is therefore not surprising that the 10-meter-or-so asteroid that blew up over a largely vacant area of the western Pacific on February 1, 1994, producing an explosion equivalent to at least ten times that of the Hiroshima bomb (and possibly rather more), was not seen prior to impact. Surveillance satellites registered it as the brightest such explosion that they have picked up so far. Despite the efforts of numerous scientists in this area of study to make the military aware that such detonations do occur naturally, it appears that the U.S . President was awakened because the Pentagon thought that this incident might be a hostile nuclear explosion." From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A TUNGUSKA-LIKE BLAST IN BRAZIL IN 1930 In a review of D. Steel's new book Rogue Asteroids and Doomsday Comets , C. Keay injects a startling bit of news: "Too late for Duncan Steel to include before his book went to press, comes the latest news that British astronomer Mark Bailey and his colleagues have discovered that a Tunguska-like event in 1930 blasted flat a huge expanse of jungle near an upper tributary of the Amazon in Brazil close to the border with Peru. The resulting fires burned for months. The only European near at hand was a Catholic priest, whose reports of the incident have lain unnoticed in the Vatican library until now." (Keay, Colin; "The NonDenominational Day of Reckoning," The Skeptic, 15:44, Spring 1995. This journal is published in Australia and should not be confused with the UK journal of the same name.) From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...
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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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... On the morning of June 30, 1908, a tremendous explosion deep in the Siberian taiga near the Tunguska river caused trees over an area of 40 km in diameter to be flattened in a radial pattern and produced a pressure wave in the atmosphere which circled the Earth." June 17-27, 1975. On the moon. ". .. an unusual meteoroid 'storm' was detected by the array of seismometers placed on the moon during the Apollo missions. The peak impact rate on the moon of 0.5 -to-50-kg objects was about 10 times the normal background during this interval. Such a high rate was not recorded at any other time during the 8-year operation of the Apollo passive seismic network." Hartung links all three events to the comet Encke and the closely related Taurid Complex of naturally occuring space debris. Some chunks in this wide stream of space debris are measured in kilometers and, if they hit the earth, would far outclass the infamous Siberian projectile of 1908. (Hartung, Jack B.; "Giordano Bruno, the 1975 Meteoroid Storm, Encke, and Other Taurid Complex Objects," Icarus, 104:280, 1993. Comment. Since we will not mail this issue of SF until the first week in July, you are safe for another year (? ) if you are reading this! From Science Frontiers #94, JUL-AUG 1994 . 1994-2000 William R. Corliss PRECAMBRIAN NUCLEAR REACTORS! Science Frontiers ONLINE No. 94: Jul-Aug 1994 Issue Contents Other pages Home Page ...
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... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Blondes in ancient china Evidence of tobacco in ancient egypt Dwarf mammoths in ancient egypt? Astronomy "AN UNPRECEDENTED AND BIZARRE OBJECT" Comets, asteroids, or neither? This was the big one, but where did it come from? Snowballs in hell? Biology It's according to hoyle and wickramasinghe Music of the hemispheres The urge to replicate: part i The urge to replicate: part ii Geology Might diamonds be dead bacteria? Deep quake deepens mystery Geophysics Sylvanshine: a newly recognized optical phenomenon Gamma-ray flashes in the upper atmosphere A DEEP-SEA HYDROTHERMAL VENT INSTEAD OF A WARM LITTLE POND? Psychology The solar wind and hallucinations Physics Cold fusion update: 1994 Miscellaneous A SKEPTIC'S NDE -- NOT SO MYSTICAL ...
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... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ballistic Panspermia Scientists are already convinced that cratering events on the moon and Mars have propelled rocky debris in the direction of the earth, and that some of these fragments have landed here in the guise of meteorites. A logical question is: Can life forms and/or chemical precursors of life be transported thus across the far reaches of the solar system? Can one planet infect another ballistically? An analysis by M.K . Wallis and N.C . Wickramasinghe is rather warm towards this idea: "The mass of escaping ejecta from the presumed 10-km comet that caused the 180-km Chicxulub crater, with a radius of roughly 10 km and 1 m deep, amounted to ~300 Mm3 , of which one third may have been rock and 10% higher-speed ejecta that could have transited directly to Mars. It may have taken 10 Ma to impact Mars but...the probability is not exceedingly low but 0.1 -1 %. "The survival and replication of microorganisms once they are released at destination would depend on the local conditions that prevail. Although viability on the present-day Martian surface is problematical, Earth-to-Mars transfers of life were feasible during an earlier 'wet' phase of the planet, prior to 3.5 Ga ago. The Martian atmosphere was also denser at that epoch, with several bars of CO2 , thus serving to decelerate meteorites, as ...
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... human records of the period. Until astronomical catastrophism became more fashionable in recent years, the so-called "dust-veil" event of 536 AD was blamed on a huge volcanic eruption. Work by M.G .L . Baillie now casts doubt upon interpretation. "Now tree-ring data, published by Professor Mike Baillie of Queens University of Belfast, has brought catastrophes almost into modern times. The tree rings show that in the mid 530s -- just about the time civilisation on Earth suffered a sharp setback -- there was a sudden decline in the rate of tree growth which lasted about 15 years. Clearly, something dramatic had happened. "There are two possibilities: a huge volcanic eruption or a collision between the Earth and a solid object: an asteroid or comet. Ice-cores drilled from Greenland show no evidence of large-scale volcanic activity at that time, so Professor Baillie and others now believe a cosmic impact is more likely. The result would have been to throw up a huge veil of dust and debris, cooling the Earth and producing widespread crop failures." (Anonymous; "Raining Death and Dark Ages," London Times, July 27, 1994. Cr. A. Rothovius) In the scientific literature, Baillie has elaborated on the cosmic-projectile theme, adding that the dust veil could also have been created when the solar system passed through a cloud of cosmic dust. (Baillie, M.G .L .; "Dendrochronology Raises Questions about the Nature of the AD 536 Dust-Veil Event," ...
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... well with the radar reflectivity anomalies recorded earlier. So, it now seems likely that ice does exist on Mercury. And, since our moon also boasts permanently shadowed crater areas, ice probably survives there, too. This is good news for future lunar colonists. But where could the ice on Mercury and the moon have come from? One source might have been the gases seeping out from the bodies' interiors. Also, cometary impacts could have added water vapor to the atmospheres. This would then have been deposited as frost in cold crater bottoms, just like the frost seen on winter window panes. (Harmon, J.K ., et al; "Radar Mapping of Mercury's Polar Anomalies," Nature, 369:213, 1994.) Comment. But are comets really the water bearers the astonomers say they are? See the item under ASTRONOMY. From Science Frontiers #95, SEP-OCT 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ice "meteorites" fall When chunks of ice much larger than those oftenreported "softballsized" hailstones fall, they are termed "hydrometeors." Many hydrometeors have been reported in the meteorological journals. (See GWF1 in Tornados, Dark Days...*) While some of these large chunks can be blamed on aircraft with leaky toilets, many others cannot be explained so easily. Some may truly come from deep space. Seeing that comets and Saturn's rings are composed mostly of ice, there seems to be no shortage of ice in outer space. It is therefore strange that air-craft are routinely blamed for all falls. A Reuter's dispatch from Beijing has described a recent triplet of possible hydrometeors: "Chinese experts have recovered what they believe to be chunks of meteoric ice that fell to Earth in Zhejiang Province, Xinhua news agency said. Amateur geologist Zhong Gongpei was nearby March 23, when farmers saw three large chunks of ice crash with a whoosh into paddy fields at Yaodou village, Xinhua said late Saturday. .. .. . "' According to witnesses, it fell with a 'whoo-ing' sound, with a cloudy streak, then came crashing down into three fields about one kilometre apart," Xinhua said." "Zhong rushed to the scene, recovered two pieces and sent both to Purple Mountain [Observatory] on March 29 with the aid of a frozen- ...
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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 Anomalous phenomena associated with the 1908 tunguska event N.V . Vasilyev has prepared a lengthy review of the 1908 Tunguska "event," which is usually ascribed to a wayward comet or meteorite. Vasilyev's data is based upon 167 reports, mostly in Russian. They show once again that this was no ordinary impact event, as illustrated by the following observations: A "local" magnetic storm began about 6 minutes after the explosion (If that is what it really was.) and lasted for more than 4 hours. These magnetic perturbations resembled those following nuclear atmospheric explosions. The Tunguska object left no smoky trail like many fireballs, but rather irridescent bands that looked like a rainbow. Following the "explosion," at least part of the object continued on in the same direction but veered upwards. [Meteors sometimes skip out of the atmosphere on trajectories like this.] Although the Tunguska event occurred on June 30, 1908, optical anomalies appeared all across northern Europe as early as June 23. These included mesospheric, silvery clouds, very bright nights, colorful twilight afterglows [something like those following the Krakatoa eruption], and remarkably intense and long-lasting solar halos. Some of these effects persisted until late July. Neither craters nor meteoric debris have been discovered so far, despite assiduous searches. The explosion created a shock wave that leveled 2150 km2 of taiga and a flash that singed about 200 km2. ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remnants of tunguska When something exploded over Siberia on June 30, 1908, flattening more than 2,100 square kilometers of forest, it left no crater of consequence and no obvious pieces of itself. Scientists have claimed all along that it was a comet or asteroid that detonated in the atmosphere. A few less conservative people ventured that it was an alien spaceship that blew up! G. Longo and colleagues, Universita di Bologna, have apparently found a way to determine the true nature of this invading object. They examined the resin in the conifers surrounding the site of the blast to see if any particulate debris had been trapped in the sticky goo -- much as ancient insects have been preserved in amber. "Longo and associates used a scanning electron microscope to examine 7,163 particles recovered from the site and from two control sites. They found anomalously high abundances of elements such as iron, calcium, aluminum, copper, gold, zinc, and oxygen in the Tunguska-site samples, strongly peaking around 1908." Their conclusion: The impactor was a stony meteorite of normal density. (Anonymous; "Remnants of Tunguska," Astronomy, 23:26, October 1995.) From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...
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... Allan Hills of Antarctica a decade ago. Its composition and fused crust suggest an extraterrestrial -- origin probably Mars. Space scientists think ALH 84001 was blasted off the Martian surface by an impacting body 14-18 million years ago, based upon its exposure to cosmic rays while circling the sun, edging ever closer to earth. The composition of ALH 84001 tells us curious facts about its place of origin. First, it contains carbonate minerals deposited by water. Second, the carbonate grains are banded, implying the parent rock formation was washed by water more than once. Third, and most interesting, chemists have found traces of molecules called PAHs, based on interconnected benzene rings. Three sources have been proposed for these PAHs: Terrestrial contamination Prebiotic activity on the planet of origin PAH-bearing comets and/or asteroids impacting the parent planet. Terrestrial contamination has always been a problem in analyzing meteorites, but great care has been taken in recent years, especially with the Antarctic lode of meteorites. In view of these precautions, it seems rather likely that somewhere "out there" life is brewing. (Anonymous; "A Chip Off the Old Mars," Sky and Telescope , 90:12, July 1995.) Reference: See also: Incredible Life for the interesting history of past "discoveries of life in meteorites. This book is described here . From Science Frontiers #101 Sep-Oct 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 91: Jan-Feb 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Pizzaspermia!We got a good laugh from that report of a fall of frozen pizza in SF#90, but now the phenomenon has suddenly become more serious! At about the same time Sky and Telescope printed the frozen pizza item, Time had a cover story on the origin of life. It was in response to this story that M.D . Greene wrote the following letter to Time : "Forget bubbles, comets or ocean vents. Scientists should be looking at pizza for the answer. I can remember when my college roommates and I routinely created life every week in our refrigerator. My theory is that around 4.5 billion years ago, the earth was bombarded by intergalactic pizzas. These then provided the ideal breeding ground in which early organisms could thrive and later evolve." (Greene, Mark D.; "How Life Began," Time, 142:8 , November 1, 1993.) Comment. Charles Fort would certainly have chuckled over the near-simultaneous mentions of intergalactic pizzas in two diverse publications. A second report underscores the mystery presented by the unexpected diversity of life in the deep-sea ooze. J.D . Gage and R.M . May ponder in Nature : "Why there should be such exuberant biological diversity in an environment apparently lacking in the habitat complexity of, say, tropical rain forest -- whose species richness it might rival -- remains an enigma ...
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... Science Frontiers ONLINE No. 69: May-Jun 1990 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The enigmatic "mooring stones" Astronomy Mystery of the missing comets Megawalls across the cosmos A TRIO OF STRANGE METEORS Biology Extinction countdown Extinction discounted New species emerging? Don't pet your house plants! Geology Deep-sixing another hypothesis? A CLASH OF HYPOTHESES Geophysics Machine-like underground noises Lightning in the family Physics Fracto-fusion? Gravity-defying gyros come down to earth Krypton-cluster magic numbers General Spontaneous order, evolution, and life ...
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... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Costa rica's neglected stone spheres The calico debate, plus a little editorializing Astronomy Small icy comets and cosmic gaia Carbon in a new comet Meteorites also transport organic payloads Supernova confusion and mysteries "COMPACT STRUCTURES": WHAT NEXT? Biology Nose news Checklist of apparently unknown animals New vertebrate depth record Aggressive mimicry Parasites control snail behavior Geology Do large meteors/comets come in cycles? Complexities of the inner earth Geophysics Concentrated source of lightning in cloud More carolina waterguns More moodus sounds Inside a texas tornado Ship enveloped by false radar echo Psychology Dowsing skeptics converted Do dreams reflect a biological state? ...
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... Science Frontiers ONLINE No. 60: Nov-Dec 1988 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Ogam, Ogam, Everywhere Unbelievable Baalbek Astronomy Why Didn't Galileo Resolve Saturn's Rings? Asteroids That Turn Into Comets A New Face on Mars? Biology Anomalous Geographical Distribution of Diabetes Mellitus Purposeful Evolution? Lop-sided Evolution Update on the "infinite Dilution" Experiments Geology Mysterious Stone Rings Global Fire At the K-T Boundary Another "Cookie Cutter" Hole Collision/eruption/extinction/ Magnetic Reversal Geophysics Mystery Glow on the Sea Floor Airborne Observations of the Marfa Lights Spiral-circle Ground Patterns in Field Crops Icy Comets Evaporating? General How Genius Gets Nipped in the Bud ...
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... Science Frontiers ONLINE No. 62: Mar-Apr 1989 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The cup-and-ring motif in america Vikings in south america? Astronomy THE "RESIDUE FALLACY" DOES NOT APPLY TO ALL RESIDUES! RECENT MARTIAN RIVERS ERODE ALBA PATERA Dancing to the comets' tune Biology Measles epidemics: noisy or chaotic? A MAMMOTH TALE! A HAIR-RAISING PHENOMENON Geology THE COOKIE CUTTER STRIKES AGAIN -- FOUR TIMES - IN NORWAY Geophysics Visual sightings of vortices in britain WHAT IS EXPLODING 400 MILES BENEATH OUR FEET? Psychology Researches in reincarnation Physics MORE CHALLENGES TO NEWTON'S LAW OF GRAVITATION ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Hardball for Keeps Connecticut "Boat" Cairn "High"-tech Farming At Tiahuanaco Astronomy The Cosmological Atlantis Mysterious Bright Arcs May Be the Largest Objects in the Universe Too Many Short-period Comets Quantized Galaxy Redshifts The Fossil Record and the Quantization of Life! Biology Whales and Seafloor Pits Strange Patterns in Another Oceanic Habitat Lunar Magnetic Mollusc Monarchs Slighted -- sorry! Did We Learn to Swim Before We Learned to Walk? How Cancers Fight Chemotherapy The Melanic Moth Myth Chain of Crevicular Habitats? Feathered Flights of Fancy Geology Why Are Antarctic Meteorites Different? More on the Soviet Plume Events Geophysics Sympathetic Lightning Ball Lightning Burns A Rayed Circle on A Shed Wall Magnetic Precursors of Large Storms On the Trail of the Fifth Force Psychology Do You Hear What I Hear? Mind-bending the Velocity Vectors of Marine Algae ...
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... Science Frontiers ONLINE No. 63: May-Jun 1989 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Peruvian geoglyphs A NEW LOOK AT THE BAT CREEK INSCRIPTION Explaining the "artifact gaps" Astronomy A HEX ON SATURN The planets are unpredictable Comets and life Life currents in space Some editorial pedantry Biology Caterpillars that look like what they eat A MAGNETIC SENSE IN MICE Taking the radon cure Trees talk in w-waves The language of life Geology More confusion at the k-t boundary Where on earth is the crust? Physics Cold fusion and anomalies ...
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... Science Frontiers ONLINE No. 57: May-Jun 1988 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Updating man-in-the-americas Who built these chambers? Stonehenge in quebec? Astronomy A NEARBY RING OF COMETS? Martian canals: is lowell vindicated? Biology You can fool some of the animals some of the time, but.... Mysterious bird deaths Does the aids virus really cause aids? The eels strike back Yeti evidence too hard! Living stalactites! subterranean life! (in three parts) Subterranean life! (part 3) Geology Florida more exotic than the travel agents promise Geophysics Outrageous earthquake waves The large-scale structure of electrical storms Unusually large snowflakes General Morphic resonance in silicon chips Did charles darwin become a christian? ...
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... Science Frontiers ONLINE No. 54: Nov-Dec 1987 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology 300,000-YEAR-OLD SITE IN BRAZIL Egyptian pyramids actually made of synthetic stone? Astronomy Icebergs and crouching giants Big-bang bashers Fractals, fractals everywhere Biology Instances of observed speciation Plants are not color blind! Electric-power plants! Honest, this is the last "plant" item! The insects' revenge Geology Now, it's comet showers that did it The changing magnetic climate: does it affect civilizations? Huge underground electrical circuit What heats the earth Geophysics Toads fall to squashy fate Ball lightning in bavaria Psychology A HOAX ADMITTED Esp of atoms? Chemistry and physics Through a peephole tantalizingly Unclassified The uncertainty of knowledge ...
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... Science Frontiers ONLINE No. 46: Jul-Aug 1986 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Tree-toting Extraordinaire Early Chinese Contacts with Australia? Astronomy Cosmic Currents Salt Structures on Venus? Halley's Comet Infected by Bacteria? Solar Neutrino Update Biology Spontaneous Human Combustion The Music of the Genes Are Fruit Bats Primates? Tigers in Western Australia? Geology Archaeopteryx and Forgery: Another Viewpoint More Paluxy Impressions Blackened, Broken Stones of the Middle East Which Came First? Geophysics The Moon and Avalanches Curious Luminous Display Over the Pacific Ocean Psychology When to Believe and When Not To Geomagnetic Stimulation of Poltergeist Activity ...
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... Science Frontiers ONLINE No. 35: Sep-Oct 1984 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Ancient Egyptians in Hawaii Sinister Development in Ancient Greece Man the Scavenger A Different Way of Looking At the Universe Astronomy A Quick Quasar Monster Star Lurks Nearby Halley's Comet is Winking At Us Galactic Radiation Belt? Biology Dolphins to the Rescue -- again! Gravity and Going Around in Ellipses Getting the Pouch Right Are Bluebloods More Often Type A? Mind Before Life Caenorhabditis Elegans The Chinese Wild Man Geology An Extraordinary Peat Formation Confusing Seismic Data From the Deep Continental Crust Geophysics Infrared Atmospheric Waves Burning Mass Falls in B.C . Psychology The Immune System As A Sensory Organ Parapsychology: A Lack-of-progress Report Chemistry & Physics Blooms in the Desert? ...
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... Science Frontiers ONLINE No. 33: May-Jun 1984 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The Inca's Use of Bismuth An Ordovician Hammer? The Azilian Pebbles Astronomy A Real Death Star The Moon's Moonlets Comet Puffs A Smoke Ring Bad Spin Split Biology The Failure of Two-dimensional Life Rubberneckia Killer Fungi Cast Sticky Nets Prisoners of the Boundary Layer California Sea Serpent Flap Mokele-mbembe Geology Horsing Around with Evolution Mima Mounds in the Kenya Highlands A Russian Paluxy Geophysics Experiments on Brown Mountain Light Flashes Overhead Mystery Cloud of AD 536 Wormy Ball Lightning Crab Fall At Brighton Psychology Imaging Cancer Away Chemistry & Physics High G-values in Mines Falling Masses Swerve South ...
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... Science Frontiers ONLINE No. 2: January 1978 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The Stone Enigmas of New England Astronomy Sun-Earth-Moon System May Not Be Stable Changes in Solar Rotation Biology Hopeful Monsters Rather Than Gradual Evolution? Hedgehogs Use Toad Venom for Defense Blind Man Runs on Lunar Time Infections From Comets Geology Will Radiohalos in Coalified Wood Upset Geological Clocks? How Real Are Biological Extinctions in the Fossil Record? Geophysics Another Indian Ocean Light Wheel Ghostly White Disk and Light Beam in Sky Fast-moving Dark Bands Cross Halo The Morning Glory Giant Ball Lightning Psychology Does Man Survive Death? ...
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... Science Frontiers ONLINE No. 126: Nov-Dec 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Icy Comets, Oceans, Life Our thought, expressed in SF#125, that the icy-comet controversy might be winding down was premature. P. Huyghe, coauthor with L. Frank of The Big Splash, responded to SF#125 with three recent articles. Two reply to major criticisms of the icy-comet theory; the third gives geological and geophysical reasons why there must have been icy comets or some other substantial influx of water and carbon to the earth's surface down the geological eons. No instrumental artifacts. The basis for the 1985 claim of L. Frank et al that small, icy comets continually bombard the earth's upper atmosphere came from photos taken far above the earth from the Dynamics Explorer 1. Large, transient "holes" appeared in the atmosphere. These were attributed to vapor clouds created by small, icy comets. (SF#44) Critics claimed that these "holes" were no more than instrumental errors. L.A . Frank and J.B . Sigwarth have investigated this possibility and have rejected it. (Frank, J.A ., and Sigwarth, J.B .; "Atmospheric Holes: Instrumental and Geophysical Effects," Journal of Geo physical Research, 104:115, 1999. Cr. P. Huyghe) Navy radar search used incorrect cross sections. A more recent attack on the icy comets came from S. Knowles et al ...
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... Science Frontiers ONLINE No. 123: May-Jun 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Moonstone In Orbit?A chunk of "something" about 50 meters across plays tag with the earth as it circles the sun. Discovered February 10, 1999 by an automated, asteroid-hunting telescope in New Mexico, the object's official name is 1999 CG9. Its orbit is nearly circular and 9 million kilometers farther away from the sun than the earth. Its year is 1.09 earth years. "The object's orbit is extremely unusual. Comets and asteroids that cross the earth's orbit normally have eccentric orbits. There is only one asteroid-like object, called 1991 VG, that has an similar orbit to that of earth. When it was discovered eight years ago, astronomers thought it might be a spacecraft that had escaped the earth's gravity." However, newly discovered 1999 CG9 is much too large to be a wayward piece of space hardware. The best guess is that it is a piece of the moon that was knocked off by an impacting asteroid. (Hecht, Jeff; "Chip off the Moon," New Scientist, p. 13, February 27, 1999.) Comment. Might it not be a chip off the earth itself? Or perhaps space hardware from somewhere else?! From Science Frontiers #123, MAY-JUN 1999 . 1999-2000 William R. Corliss ...
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... not have the alphanumerical labels. AA ASTEROIDS AAB CELESTIAL MECHANICS PROBLEMS WITH ASTEROIDS AAB1 Anomalous Asteroid Orbits AAB2 Asteroid Distribution Anomalies AAB3 The High "Internal Energy" of the Asteroid Population AAB4 Peculiar Distribution of Asteroid Spin Rates AAB5 Unexplained Residual Precession of Icarus AAB6 Evidence against an Explosive Origin for Asteroids AB SOLAR SYSTEM "LAWS" AND INTERRELATIONSHIPS ABB DYNAMICS OF THE SOLAR SYSTEM AS-A -WHOLE ABB1 Solar-System Instability ABB2 Circularity of Planetary Orbits ABB3 Anomalous Split of Angular Momentum between Sun and Planets ABB4 Ubiquity of Resonances in the Solar System ABS REMARKABLE RELATIONSHIPS AMONG PLANETARY AND SATELLITE PARAMETERS ABS1 Solar System Laws of Distance ABS2 Similarity of Densities of Composite Terrestrial Planets ABS3 Multiple Primaries in the Solar System ABS4 Supposed Quantization of Planetary Orbital Periods ABS5 Solar System Mass Laws ABS6 The Quantized Nature of Orbital Systems AC COMETS ACB ORBITAL ANOMALIES OF COMETS ACB1 The Appearance of Comets in Cycles ACB2 Nonrandom Direction-of-Approach of Comets to the Sun ACB3 New Comets Have Almost Critical Velocity ACB4 Sun-Grazing Comets: The Kreutz Group ACB5 Changing Cometary Periods ACB6 Jupiter's Family of Comets ACB7 Low-Eccentricity Cometary Orbits ACB8 The Scarcity of Hyperbolic Orbits ACB9 Cometary Groups ACB10 Orbits of New Comets Diverge from Common Point ACB11 Excess of Retrograde Long Period Comets ACB12 Uranus-Neptune Region Favored as Comet Source ACB13 Cometary Perturbations Suggestive of Planet X ACB14 Rapid Attrition of the Oort Cloud by Molecular Clouds ACB15 Dynamical Improbability of the Oort Cloud ACO OBSERVATIONAL ANOMALIES OF COMETS ACO1 Two-Dimensional Comet Tails ACO2 Cometary Activity Far from Solar Influence ACO3 Comets without Nuclei ACO4 Absence of Meteorites from Comet-Related Showers ACO5 Contraction of ...
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... s Zone of Silence Infrared Angels Extremely-Low-Frequency (ELF) Phenomena Effect of Low-Pressure Areas upon Shortwave Propagation Unidentified Atmospheric Radio Bursts Detected by Satellites GES SHADOW PHENOMENA GES1 Eclipse Shadow Bands GES2 Moving Shadow Bands in the Atmosphere GES3 Colored Shadows GES4 Shadow Bands Seen through the Telescope GES5 Unusual Shadows Observed during Eclipses GES6 Non-Eclipse Shadow Bands GES7 Persistent or "Living" Shadows GES8 Curious Mountain Shadows Curious Shadows of Condensation Trails GEZ ANOMALOUS MAGNETIC AND ELECTRIC-FIELD DISTURBANCES GEZ1 Unexplained Magnetic Disturbances GEZ2 Effect of the Moon on the Geomagnetic Field GEZ3 Effects of Solar Eclipses on Geomagnetism GEZ4 Effects of the Planets on the Geomagnetic Field GEZ5 Meteor Activity Correlated with Geomagnetic Activity GEZ6 Terrestrial Electrical Effects Correlated with Meteors GEZ7 Geomagnetic Disturbances Correlated with Stellar Activity GEZ8 Gravity Waves Correlated with Geomagnetic Storms Effects of Comets upon Geomagnetic Activity Effects of Lunar Eclipses upon Geomagnetic Activity Effect of Solar Flares upon the Potential Gradient Effect of Geological Features upon Geomagnetic Activity Effects of Earthquakes upon the Potential Gradient Effect of Volcanism upon Geomagnetic Activity GG GRAVITATIONAL PHENOMENA GGF VARIATIONS IN GRAVITY Nontidal Variations of the Gravitational Field Periodic Changes in Gravity GGH MAGNETIC HILLS Spook Hill and Kin GH PHENOMENA OF THE HYDROSPHERE GHC UNUSUAL PHENOMENA OF WATER SURFACES GHC1 Foam Strips on Inland Waters GHC2 Streaks, Slicks, Calm Patches GHC3 Stratified Typhoon Waves GHC4 Sudden Whitening of Dead Sea GHC5 Dead Water and Slippery Seas GHC6 Bulging River Surfaces GHC7 Swiftly Traveling Surface Disturbances GHC8 Honeycomb Appearance of Flowing Water Remarkable Convection Patterns in Ponds Long Lines of Microorganisms on the Ocean Surface Massive Foam Accumulations Storm Footprints on the Ocean as Seen from Orbit Remarkable Falling and Rising Lake Levels Parting ...
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... Science Frontiers ONLINE No. 125: Sep-Oct 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Leonid Luminosity Puzzle Around November 17 every year, meteorwatchers strain to see the Leonids dart through the night sky. The Leonids are meteors that radiate from a point in the constellation Leo. The millimeter-size bits of debris that create this annual light show are tiny fragments discarded by the comet Temple-Tuttle that burn up high in the atmosphere. Astronomers are secure and comfortable with this explanation of the mid-November spectacle. Perhaps they shouldn't be. In November 1998, an intriguing anomaly cropped up -- way up, 120 miles up! Leonids were seen to burn up at this altitude where there is not enough atmosphere to create the friction required to vaporize the space debris. Perhaps the cometary fragments from comet Temple-Tuttle are unusually volatile. Perhaps there is something else going on at the outer fringes of the atmosphere. Who knows? (Witze, Alexandra; "Scientists Gain Insights into Meteors," Northwest Florida Daily News, May 27, 1999. Cr. B. Reid) Comments. Sometimes, comets flare up so far from the sun that solar heating is negligible. This poorly understood phenomenon may be related to the highaltitude flare-ups of the Leonids. Some people claim they can sometimes hear meteors hiss as they streak through the sky at altitudes so high that there is not enough air to convey sound! Such "electrophonic sounds" may have an electromagnetic origin; that is, some ...
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... tools from it; the ancient Egyptians had carved a scarab from LDG and deposited it in Tutankhamen's tomb. But Clayton and the ancients did not recognize the scientific implications of their discovery. LDG is the purest natural silica glass ever found. Over a thousand tons of it are strewn across hundreds of kilometers of bleak desert. Some of the chunks weigh 26 kilograms, but most LDG exists in smaller, angular pieces looking like shards left when a giant green bottle was smashed by colossal forces. Pure as it is, LDG does contain tiny bubbles, white wisps, and inky black swirls. The whitish inclusions consist of refractory minerals, such as cristobalite. The ink-like swirls, though, are rich in iridium, which is diagnostic of an extraterrestrial impact -- meteorite or comet. The iridium leads to the heart of the LDG problem: Where did this immense amount of widely dispersed glass shards come from? Was it really created during the searing, sand-melting impact of a cosmic projectile? This is how today's catastrophists would have it? At least three "minor" problems bedevil the accepted impact theory. The surface of the Great Sand Sea shows no sign of a giant crater. Neither do microwave probes deep into the sand by satellite radar. LDG seems too pure to be derived from a messy cosmic collision. Known impact craters, such as that at Wabar in Saudi Arabia, are littered with bits of iron and other meteorite debris. Not so at the LDG sites. LDG is concentrated in two areas. One is oval-shaped ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunguska: An Inside Job?Virtually all speculation about the 1908 Tunguska Event assumes an external cause: a meteor, a comet, an asteroid, or even the accidental explosion of an alien spaceship. A recent meeting of Tunguska experts in Russia looked down rather than up for Tunguska's initiating phenomenon. In this open-minded review, two little-publicized but highly pertinent Tunguska observations were discussed. The catastrophe had five centers of destruction rather than one. At the Tunguska site are many large root stumps, not yet rotted away, that cannot be linked to any pits associated with their origin. These stumps were apparently blown out of the ground and hurled dozens of meters from where they stood prior to the Event. Next to be considered were the unappreciated similarities between the Tunguska Event and the 1883 explosion of Krakatoa. The four bright nights in Europe and western Asia, straddling 30 June 1908, are remimiscent of the 1883 Krakatoa outburst, they ask for transient scatterers in the upper atmosphere, above 500 km, at heights which only methane and hydrogen are light enough to reach in sufficient quantity. Fast-rising natural gas has been repeatedly detected in recent years, in the form of "mystery clouds"---by airplane pilots---and indirectly as pockmarks on 6% of the sea floor. In other words, Tunguska might well have been---not an extraterrestrial impact--- ...
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