88 results found.
... 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 Biology Heavy Paleontology vs. DNA. The so-called Cambrian Explosion has been the subject of two SF items (SF#60/187 and SF#85/ 187). A paleontological fact of life is that all known body plans (phyla) seem to have evolved suddenly -- within a few million years -- after the onset of the Cambrian period some 545 million years ago. Evolutionists are understandably uncomfortable with such a high rate of evolutionary innovation. Nothing like the Cambrian Explosion appears in the hundreds of millions of years of geological strata that followed. So rapid was speciation during the Cambrian Explosion that doubt is cast upon the accepted mechanisms of evolution: slow, stepwise accumulation of mutations plus natural selection. (Refs. 1 and 2) But G.A . Wray and colleagues seem to have rescued Darwinism. They have analyzed the DNA sequences of seven genes found in living animals. Assuming that these genes mutate at constant rates and working backwards in time, they calculate that animal diversification (i .e ., when chordates diverged from invertebrates) actually began about 1 billion years ago, rather than about 545 million years ago. This expansion of the time frame gives accepted evolutionary processes much more time to innovate and create all those new body plans. The evolutionists are pleased. The paleontologists, however, are in a quandry. They see nothing -- or very little -- in the Precambrian fossil ...
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... by 3 UC Berkeley (BDSN) and Caltech (TERRAscope) broadband seismographic stations and 15 shortperiod seismographic stations (operated by the USGS in Menlo Park and the University of Nevada, Reno). In fact, it is the largest vertical rock free-fall ever recorded seismically and it registered on seismographs up to 200 km distant." (Uhrhammer, R.A .; "Seismic Analysis of the Yosemite Rock Fall of July 10, 1996," Eos, 77:508, 1996.) December 9, 1995. Southern Ecuador. "On the afternoon of December 9, 1995, a bolide exploded in the atmosphere over the Andes in southern Ecuador. Many people in nearby towns witnessed the event. They reported seeing a streaking meteor, which terminated in a loud and brilliant explosion. In some locales, the flash was noticeable even through cloud cover. The burst of light was observed by satellite optical sensors used to detect atmospheric nuclear tests. Three local seismic stations also recorded signals from the explosion...This bolide appears to be unique in that it was observed by eyewitnesses and located by both satellite and ground-based sensors." The sound of the meteor's explosion was heard at least 56 kilometers away. (Chael, Eric P.; "Seismic Signals from a Bolide in Ecuador," Eos, 77:508, 1996.) From Science Frontiers #111, MAY-JUN 1997 . 1997-2000 William R. Corliss ...
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... . McIver way back in 1982, in the Bulletin of the American Association of Petroleum Geologists. (SF#25/208) The source of methane-gas releases (" burps") is the rapid decomposition of methane hydrate, which exists in prodigious quantities in offshore sediments. Some geologists have estimated that there is twice as much methane in methane-hydrate deposits as in all terrestrial natural-gas fields. What makes methane hydrate potentially lethal is its instability. Landslides and small quakes can release huge plumes of methane bubbles into the ocean and thence into the atmosphere. Ships might founder in the lowdensity froth of bubbles, and aircraft might be adversely affected, too. This is where TWA800 comes in. R. Spalding, a scientist at Sandia National Laboratories has been monitoring mysterious atmospheric explosions and believes that some of these detonations are consistent with the atmospheric ignition of huge methane plumes. (Other detonations are due to meteors.) Spalding proposes the following scenario: The ocean floor releases a massive methane gas plume, which rapidly rises to the surface and ascends into the atmosphere. The lighter-than-air methane cloud gains altitude, mixing with oxygen and thereby gaining explosive poten tial. An electrical disturbance -- possibly caused by the rising cloud itself or a lightning strike -- detonates the cloud. Awesome energy is instantly re leased in the form of a devastating shock wave and fireball that shat ters nearby TWA Flight 800. Supporting Spalding's theory are the many reports of light flashes, light streaks, and booming/rumbling sounds accompanying the disaster. But, ...
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... Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Heard Above Cayuga's Waters In 1934, Science printed several letters describing and speculating about the socalled "Seneca Guns". (Lake Seneca is one of New York State's Finger Lakes.) The locals and Indians of bygone days have repeatedly testified about the eerie, unexpected booms heard around the shores of Lake Seneca. It seems that the phenomenon is not restricted to this Finger Lake, for a letter from G. Kuchar describes a modern "bombardment" of "lake guns" heard at Lake Cayuga about 15 miles east of Lake Seneca. "In the early morning hours of August 8th, 1996 (maybe about 6:30 or 7:00 AM), I was awoken by what I thought were loud explosions of thunder. It was a very loud, abrupt sound, sort of like close-by thunderclaps except that they seemed somewhat distant and yet had no reverberations or rumblings. I went to the window which faced a large building across the way...The early morning appeared warm, humid, and overcast. The explosive "thunderclaps" happened again, a whole series of them, and they seemed to originate up in the air and to my right, but I could detect no flashes of light, and the blasts seemed to come at random points in the sky (which was not very visible to me because of the big building looming across the lawn). I couldn't figure out where the storm cloud was that was producing these blasts, since everything was uniformly ...
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... land, the area was more than a geographical oddity. It was a sinister place with a reputation among American Indians and early settlers as a burning lake of fire. "' The Indians called it Nodoroc,' said Mr. Chandler, leading a recent tour along the edges of the pit, 'But what they meant was Hell.' "Although few signs remain today, the area was once a bubbly cauldron, a mud volcano from which a steady stream of foul gases ignited into an eerie plume of black smoke that could be seen for miles, according to numerous accounts from white settlers and Creek Indians inhabiting the area in the late 1700s. .. .. . "The Nodoroc slowly declined in intensity, and one day in the mid1800s it blew up in an awesome explosion of mud and heat and expired." (Stenger, Richard; "Histories of Area Describe Terror," Augusta Chronicle, June 11, 1996. Cr. L. Farish) Comment. Was the energy source of the Nodoroc volcanic or chemical (as from decaying organic material). It's final death throes resemble the explosion of Lake Monoun, Cameroon, in 1984. (See SF#45.) From Science Frontiers #109, JAN-FEB 1997 . 1997-2000 William R. Corliss ...
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... " would have been smack on the equator of Mars-to-be, gazing downward perpetually upon the doomed planet. The "face" thus had a cultural purpose, a sort of cosmic "Big Brother." Carrying these thoughts to their logical conclusion, the inhabitants of the planet had colonized their "moon" and built those controversial "structures." (Van Flandern, Tom; "New Evidence of Artificiality at Cydonia on Mars," Meta Research Bulletin, 6:1 , 1997. Journal address: P.O . Box 15186, Chevy Chase, MD 20815.) Comment. We cannot resist adding two more thoughts to all this speculation: If life on Mars really did (does) exist, it probably really originated on the supposed exploded planet! Could the explosion of this planet have seeded the earth with life, say, at the time of the unexplained Archean Explosion? (See under BIOLOGY.) Reference. The asymmetry of the surface of Mars and other unusual geological features are collected in Chapter AME in our Catalog The Moon and the Planets. For more on this volume, go to here . Eastern hemisphere of "two-face" Mars. Cratered highlands (white); lowland plains (shaded). From Science Frontiers #113, SEP-OCT 1997 . 1997-2000 William R. Corliss ...
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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 Target: Greenland Reports of recent large meteors and suspicious craters are plentiful in back issues of this newsletter. (SFs #93, #102, #103, #110, to name a few) Here is another. December 9, 1997, Greenland. At 5:11 A.M ., crews of three trawlers at widely separated sites off south Greenland reported "a blazing fireball that turned night into day." At a distance of 100 kilometers (62 miles), the flash was compared to that from an atmospheric nuclear explosion. Danish officials dismissed the possibility of a surreptitious nuclear test. The U.S . Air Force stated that the object was neither a reentering spacecraft nor artificial space debris. Some seismic tremors also emanated from Greenland, so the impact of a large meteorite is suspected. Based on the visual sightings and a moving object caught on a parkinglot surveillance camera in Nuuk, Greenland's capital, the probable impact point is at 61 25' N., 44 26' W. Efforts to locate the meteorite will have to wait for favorable weather. The supposed meteor was not a small object. The Niels Bohr Institute in Copenhagen compared it to the Kap York meteor that fell south of Thule, Greenland, in prehistoric times. Pieces of this iron meteorite aggregating 50 tons have been collected. (Sawyer, Kathy; "Fireball a Mystery till Thaw," Charlotte Observer, December ...
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... Science Frontiers ONLINE No. 120: Nov-Dec 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bouncing Ball Lightning Autumn 1940, Berwyn Mountains, North Wales. The percipient in this unusual ball lightning sighting was a Mr. H, who was schoolmaster at Sandyhurst College. "While out walking he was caught in a violent thunderstorm on the side of a hill with a scooped valley below. Ahead of him perhaps 300 feet distant, a bolt of lightning struck a tree with a sharp explosion of noise. Almost immediately a sphere six inches in diameter appeared from the direction of the strike and began to bounce across the ground towards him like a rubber ball. Climbing the hill under its own energy, the object rolled in a parabolic path and hit the ground every ten or twenty feet, climbing up to about three feet in height with each 'rebound'. Every time it hit the ground there was no sound, but a puff of greyish smoke or vapor was emitted. The object got to within about 50 feet of Mr. H before it suddenly vanished. This allowed him to have a good look at it at close proximity. He says that it was completely round and was a smokey-grey colour." (Anonymous; "Ball Lightning in Lancashire and North Wales," Journal of Meteorology, U.K ., 23:139, 1998.) From Science Frontiers #120, NOV-DEC 1998 . 1998-2000 William R. Corliss ...
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... 1800s -- an exceptionally dry period in Africa. Today, the Lake is again high and once more host to isolated rocky islands, each with its own unique complement of cichlid fish; each island has species found nowhere else in the lake. Where did all these species come from, considering that their little islands were bone dry just a century ago? Goldschmidt writes: "Cichlids that inhabited these exposed rocks would have suffocated, unless they had already left for wetter climes. Yet today, species that do not exist anywhere else can be found near almost every rocky island. From an orthodox point of view, the most plausible explanation for this is quite surprising: many color forms as well as biological species developed over a period of less than two hundred years." This is certainly explosive speciation -- real biological punctuation! But, perhaps as water levels fell, the original cichlids found refuges in surviving pools and then repopulated the lake when the waters rose. But is it reasonable to believe that they all sorted themselves out so perfectly that many species are found nowhere else in the lake? The probability seems high that cichlid speciation has been very rapid -- too rapid, one would think for random mutation and the slow feedback of natural selection to accomplish this daunting task in just a century or two. Might there not be some additional nonsupernatural factor at work? (Goldschmidt, Tijs; Darwin's Dreampond , Cambridge, 1996, p. 125.) From Science Frontiers #110, MAR-APR 1997 . 1997-2000 William R. Corliss ...
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... depart slowly, quietly, and mournfully. Of course, Eliot was not thinking of asteroids -- no one foresaw impact havoc in his day. But, his use of the word "whimper" can be attached to another, much slower astronomical agent of planetary death: cosmic dust and gas. Here's the current situation: "For the most part of the past five million years, the Solar System has been moving through a rather empty region of interstellar space between the spiral arms of the Milky Way. But a few thousand years ago, it entered a diffuse shell of material expanding outward from an active star-forming region called the Scorpius-Centaurus Association. Such 'super-bubble' shells of gas and dust result from the formation of massive stars, or the explosion of those stars as they become supernovas, and contain gas and dust clouds of varying densities." The density of matter in this solarsystem-engulfing shell could well shroud our planetary system with dust and gas a million times more dense than that we now encounter. If this happens, the sun's rays would slowly dim and life forms dependent on photosynthesis would expire. P. Frisk, a University of Chicago astronomer, forecasts a "bumpy ride" for earth dwellers during the next 50,000 years; but we think Eliot's "whimper" is more expressive of what might happen. (Jayawardhana, Ray; "Earth Menaced by Superbubble," New Scientist, p. 15, June 22, 1996) Comments. A possible precursor of things to come was ...
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... the first observation, there were two witnesses. Both saw lightning strike a low-flying USAF jet. Mrs. E. Shobli wrote the following account: "Two forks of lightning came from the clouds in front of the plane, converged on it and gripped it. The tail end of the plane became illuminated -- vapours came from its end and formed into a bright, dense mass. I thought I was witnessing damage to the plane. The light continued to separate from the plane, downwards 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 ' ...
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... 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, JAN-FEB 1999 . 1999-2000 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 Strange explosions at sasovo, in russia Some most peculiar phenomena have occurred recently about 200 miles southeast of Moscow. Discussioms have appeared in Russian publications, but we have not yet seen anything in the English-language journals. These phenomena have a bearing on the still-enigmatic Tunguska event of 1908 -- customarily attributed to a celestial projectile of some sort -- and perhaps even those bizarre "cookie-cutter" holes found in the U.S ., Canada, Norway, and elsewhere. One of our Russian correspodents has summarized what is known about the Sasovo explosions, and we are pleased to be able to present part of his (lightly edited) letter here: "On April 12, 1991, a strange explosion took place near the Russian town of Sasova (350 km to the southeast of Moscow). After the explosion, a crater, diameter about 30 m and depth 3m, was found. At first, several ideas about its nature were proposed, but now almost all of them are abandoned, except one: that it was a tectonic (endogenic, to be exact) origin. This is proved by geophysical research in the region and a secondary, weaker explosion (a crater also appeared) taking place in 1992 in a sparsely populated area about 9 km away from the first one. For some years before the explosions, there were signs of increased tectonic activity in the region: a great ...
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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. 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. 92: Mar-Apr 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Target Earth Let Jupiter take care of itself! What about us -- Terra, the third planet? A February article in Sky and Telescope begins: "Military satellites have been watching huge meteoroids slam into the Earth's atmosphere for nearly two decades." Secret until recently, infrared scanner data from military satellites have detected 136 atmospheric explosions since 1975 with yields of 1 kiloton or more. There may actually have been as many as four times this number, because the satellites are programmed to look for unnatural events, such as nuclear detonations. They often ignore extraterrestrial projectiles. Why aren't earthbound observers aware of all these atmospheric explosions? Because most are infrared events; few emit enough visible light to attract the attention of ground-based observers. However, two of these "secret" meteoric events might explain some Fortean phenomena recorded over the last two centuries. April 15, 1978. Over Indonesia. A military satellite watched a colossal daylight fireball that, for one second only, would have rivaled the sun to anyone watching from the ground below and alert to such phenomena. The TNT yield was estimated at 5 kilotons. August 3, 1963. Between South Africa and Antarctica. A huge airburst equivalent to a 500 kilotons was picked up by a worldwide network of acoustic detectors. The cosmic interloper this time was believed to have been a small asteroid about 20 meters in diameter. (Beatty, J. Kelly ...
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... seems to be underlain by a deposit of methane hydrate 200-300 meters thick. [Methane hydrate is a weird substance that looks like dirty ice. When brought to the surface, the methane fizzes away, leaving only a puddle of dirty water!] Lastly, in Ref. 3, C.K . Paull et al report on the release of plumes of methane bubbles from the Carolina continental rise at a depth of 2167 meters. Here, the sediments are riddled with methane hydrate. Why all this fuss over fizzy ice, and what is the connection between methane hydrate and pockmarks? The methane hydrate deposits represent immense accumulations of methane -- probably far more natural gas than geologists have found on the continents. Sea-bed pockmarks are thought to be formed when methane gas is explosively vented, perhaps when methane hydrate -- very unstable stuff -- suddenly decomposes. Offshore booms and mistpouffers (SF#73*) are often heard in the areas where pockmarks are common. Rich clusters of methane-dependent life forms surround methane seeps. The quantity of buried organic matter required to create all the offshore methane is staggering. Where did it all come from and how did it come to be buried at such great depths? Could some of the offshore methane be abiogenic? (6 ) Could the explosive decomposition of methane hydrate create giant bubble plumes that might engulf ships (in certain infamous "triangles") and cause them to sink like rocks in the low-density froth? (SF#25*) References Ref. 1. Kelley, Joseph T. ...
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... than 20-25 kilometers down. However, a few extremely deep quakes rumble at depths of about 600 kilometers. On June 8, 1994, what may be the largest deep earthquake of the century -- magnitude 8.2 -- exploded 640 kilometers beneath Bolivia. "Exploded" may or may not be the proper word. Geophysicists are really not certain what causes the very deep quakes, because at 640 kilometers rocks are so hot that they flow rather than snap under geological stresses. The more common, shallow earthquakes are generally created when rocks snap and fracture. Since the deep quakes seem to be concentrated in subducted slabs of terrestrial crust that plunge down deep into the earth's mantle, geophysicists suppose that the increasing heat and pressure applied to the descending slabs may cause "explosive" phase changes in minerals contained in the slabs. Phase changes often involve volume changes that, if sudden, might generate seismic waves. Too, water of hydration in minerals may be explosively turned into vapor. But this is all surmise at present. The Bolivian quake also caused the whole earth to ring like a bell. Every 20 minutes or so, the entire planet expanded and contracted a minute but detectable amount. Another surprise: the Bolivian earthquake was felt a far away as Seattle -- the first time that a quake in that part of South America has been actually felt in North America. (Kerr, Richard A.; "Bolivian Quake Deepens a Mystery," Science, 264:1659, 1994. Also: Monastersky, R.; "Great Quake in ...
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... " and to have been preceded by remarkable atmospheric disturbances (a 'blood-red' Sun, an ear-piercing 'whistling' sound, and the fall of fine ash which covered trees and vegetation with a blanket of white), few details are provided that constrain the time and place of the event. Nevertheless, the story refers to an article in the papal newspaper L'Osservatore Romano [March 1, 1931], apparently written by a Catholic missionary 'Father Fidello, of Aviano', and it is to this that we now turn. Apparently, there were three bolides or fireballs seen. Father Fidello wrote: "They landed in the centre of the forest with a triple shock similar to the rumble of thunder and the splash of lightning. There were three distinct explosions, each stronger than the other, causing earth tremors like those of an earthquake. A very light rain of ash continued to fall for a few hours and the sun remained veiled till midday. The explosions of the bodies were heard hundreds of kilometres away." (Ref.1 ) M.E . Bailey singles out two puzzling features of the Brazilian event: (1 ) the fall of dust before the fireballs were observed; and (2 ) the lack of any mention of a blast wave. Further, the L'Osservatore Romano account does not say anything about extensive forest fires. (Ref. 1; see Ref. 2 for a synopsis.) Circa December 11, 1935. British Guiana (now Guyana). Only five years after the Brazilian event, ...
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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 Did the universe have a beginning?" Abstract. The big bang theory postulates that the entire universe originated in a cosmic explosion about 15 billion years ago. Such an idea had no serious constituency until Edwin Hubble discovered the redshift of galaxy light in the 1920s, which seemed to imply an expanding universe. However, our ability to test cosmological theories has vastly improved with modern telescopes covering all wavelengths, some of them in orbit. Despite widespread acceptance of the big bang theory as a working model for interpreting new findings, not a single important prediction of the theory has yet been confirmed, and substantial evidence has accumulated against it. Here, we examine the evidence for the most fundamental postulate of the big bang, the expansion of the universe. We conclude that the evidence does not support the theory, and that it is time to stop patching up the theory to keep it viable, and to consider fundamentally new working models for the origin and nature of the universe in better agreement with the observations." This paper's author, T. Van Flandern, dismisses quickly two pillars of the Big Bang; i.e ., its supposed predictions of the cosmic microwave background and the abundances of light elements in the universe: "The big bang made no quantitative prediction that the "background" radiation would have a temperature of 3 degrees Kelvin (in fact its initial prediction was 30 degrees Kelvin); whereas Eddington ...
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... Science Frontiers ONLINE No. 101: Sep-Oct 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Strange phenomenon detected by radars and satellites January 12, 1994. Near Monte Vista, Colorado. At 2:55 PM local time, radars of the North American Aerospace Defense Command and satelliteborne instruments detected an unexplained "heat-radiating" phenomenon. Some sort of fire or explosion was suspected, but air and ground searches by local authorities turned up nothing. Possibly relevant: On the night of January 15, a Rio Grande County sheriff's deputy on patrol saw three helicopters, two with large strobe lights, apparently searching the suspect area. Military officials denied having any craft in the area. (Anonymous; "Officials Baffled by Spectacle on Radar," New Mexican , January 27, 1994. Associated Press item. Cr. P. Viemeister) Comment. Infrared sensors on satellites could detect "heatradiating" phenomena, but it is unclear what groundbased radars "saw." If some kind of military operation were involved, it is doubtful that radar and satellite observations would be made public. Caution advised here! From Science Frontiers #101 Sep-Oct 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 93: May-Jun 1994 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The spirit pond inscription stone Molecular clock places humans in new world 22,000-29,000 bp Astronomy Anomalous horizon glows seen on the moon From dust unto dust Biology Marine snow A REALLY ERRANT PIGEON A REALLY ERRANT SEAL Cold-blooded birds? Why snakes have forked tongues Lactating male bats Geology The nebraska sand hills: wind or water deposits? The giant crystal at the heart of the earth Geophysics Strange explosions at sasovo, in russia Just plane weird Psychology The healing of rents in the natural order Mathematics Btt and surreality ...
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... Issue Sourcebook Project Sourcebook Subjects Beware the ides of june -- and the rest of the month, too!Three astronomical events, all within the short span of written human history, lead J. Hartung to warn us that June is a dangerous month for earthlings. June 18, 1178. On the moon. ". .. just after sunset, it was reported by at least five men that the 'upper horn of a new moon split and from the division point fire, hot coals, and sparks spewed out.'" These observations have been interpreted as eyewitness accounts of the impact on the moon that gouged out the crater named Giordano Bruno, 20 kilometers in diameter. June 30, 1908. Siberia. "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 ...
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... ideas is plagued by discordant observations. The "epoch of quasars" is, therefore, a fabric woven from controversial threads. Two thoughts important enough to mention: (1 ) The idea of a quasar epoch is consistent with the quantization of red shifts mentioned by Tifft (SF#50/ 95); (2 ) Our personal speculation that a quasar epoch might involve a change in the fundamental properties of time, matter, and space -- something like a cosmic phase change (See SF#74/329.*) Apparently, something was basically different in the universe 1.9 -3 .0 billion years ago when quasars reigned. Curiously, there seems to have been something fundamentally different here on earth about 570 million years ago -- the time of the Cambrian explosion, when essentially all the basic body plans (the phyla) of life originated. (SF#85/187) If the universe is much younger than 15 billion years, as some astronomers insist, we might be able to correlate the two epochs when things were really different! *SF#85/187 = Science Frontiers #85 and p. 187 in Science Frontiers (the book). To order the latter, see: here . From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology ANCIENT ACOUSTICAL ENGINEERING THE CANDELABRA OF THE ANDES Astronomy HUGE FIREBALL EXPLOSION IN 1994 2,000,000,000 BC: THE EPOCH OF QUASARS Biology TWO POLITICALLY INCORRECT BIOCHEMICAL ANOMALIES FROM DUST UNTO ABYSSAL MUD PERFECT PITCH AND SUNDRY SYNDROMES KING CRAB CONGREGATIONS THE BIRDS Geology WARM LAKE FOUND UNDER ANTARCTIC ICE SHEET REMNANTS OF TUNGUSKA "WEIRD ICICLES" IN A REFRIGERATOR Geophysics A TUNGUSKA-LIKE BLAST IN BRAZIL IN 1930 STYTHE? ICE "METEORITES" FALL LONG-LIVED BUBBLE IN THE ATMOSPHERE Psychology UNCONVENTIONAL WATER DETECTION FUNGAL PHANTASMS Mathematics 1, 089, 533, 431, 247, 059, 310, 875, 780, 378, 922, 957, 447, 308, 967, 213, 141, 717, 486, 151 Physics SOUR GRAPES! ...
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... Science Frontiers ONLINE No. 70: Jul-Aug 1990 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology A RELUCTANT, LONG-OVERDUE PARADIGM SHIFT Astronomy "TAIL WAGS DOG" IN SOLAR SYSTEM Two anomalous types of stars Tilted planetary magnetic fields Biology Killer bamboos Killer whale dialects Wandering albatrosses really wander Crystal engineering Bird brain Artificial molecule shows 'sign of life' Geology Why aren't beach pebbles round? Antarctic ice sheets slipping? Natural gas explosion? Geophysics Double image of lunar crescent Elliptical halos Belgian flying triangle Lightning "attacks" vehicles Spinning ball of light inscribes crop circles General Successful predictions mean little in science ...
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... Science Frontiers ONLINE No. 59: Sep-Oct 1988 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Stele with Unknown Glyphs Found Near Vera Cruz All Roads Lead to Chaco Canyon How and When the Americas Were Peopled Astronomy "? " ! ? Nereid: Grotesque Shape Or Two-faced? Memoirs of A Dissident Scientist Biology Nothing Reacts with Something? Periodic Extinctions and Explosions in Terrestrial Life Aids: Another Great Deceiver Geology Going for Gold Is There Truth in the Grains? Did An Asteroid Impact Trigger the Ice Ages? The New Archaeoperyx Fossil Geophysics Fish and Winkle Showers Lightningless Thunder? Psychology The Enigma of Multiple Personality Observations of Luminous Phenomena Around the Human Body ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Those Old Maps of Antarctica Inca Walls and Rockwall, Texas Astronomy Enormous Stellar Shell Raises Theoretical Questions Radar Glories on Jupiter's Moons Optical Bursters Halley's Confounding Fireworks Neptune's Strange Necklace Recent Explosion on Sirius? Biology Prebiological Chemistry in Titan's Atmosphere Million-cell Memories? Grounded Bats Nicheless Philosophical Confusion? Monarch Migration An Illusion Geology Moho Vicissitudes A Slice of Ocean Crust in Wyoming The NACP Anomaly Reversed Magnetization in Rocks Geophysics Geomagnetic Reversals From Impacts on the Earth Mystery Plumes and Clouds Over Soviet Territory Sailing Through A Waterspout Psychology Personality and Immunity ...
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... Science Frontiers ONLINE No. 22: Jul-Aug 1982 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Neanderthal Man May Still Survive in Asia Code of the Quipu The Chaco Canyon Road System Astronomy Dark Secret Behind Jupiter Where Did the 1780 Eclipse Go? Herbert Ives and the Ether Biology Bowerbird Art for Art's Sake The Nomads Within Us Geology Old Hannah's Explosions Large Changes of the Earth's Magnetic Fields in Historical Times Geophysics Ball Lightning with Internal Structure Haily Rollers How Can the Sun Influence Chemical Reaction Rates? Psychology Conditioned Responses That Short-circuit the Conscious Brain ...
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... comprehension course through the cosmos. Even the Starship Enterprise could not really survive out there. Three cautionary tidits will illustrate the hazards as well as our ignorance of them. "What could possibly accelerate a single subatomic particle to such a high speed, 99.99999999999999999999 percent that of light, that it would smash into the earth's atmosphere with the energy of a hard-hit tennis ball? If you don't have a clue you're not alone. These particles are ultra-high-energy cosmic rays, which are billions of times more energetic than the run-of-the-mill cosmic rays that continuously bombard earth's atmosphere." (Anonymous; "Space Streakers," Astronomy, 27:34, March 1999.) "The most powerful explosion ever ever observed -- a deep space eruption detected in January -- released in just seconds a burst of energy equal to billions of years of light from thousands of suns. Researchers say in studies to be published today that the explosion, called a gamma-ray burst, occurred 9 billion light years from earth. What caused the explosion is a mystery." (Anonymous; "Blast's Light May Have Been Greater Than Rest of Universe," Baltimore Sun, March 26, 1999.) "Every day, the sun blows billions of tons of ionized gas, electrons and protons into space -- the "solar wind." Sometimes, especially near the solar maximum, this wind is punctuated by squalls and storms of dangerous highenergy particles." Two giant solar ...
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... thin veneer of blue ocean water. Mars is now red because of its endless vistas of reddish soil and rocks, But most planetary scientists now insist that Mars was once blue, too. It was drained by gushing rivers and supported a vast ocean. The planet's many channels and layered deposits seem to prove Mars was, like Earth, once a water-rich planet. We like to think this way because we so much want to find life on our sister planet, and to us water is life! Not so fast! says N. Hoffman from La Trobe University in Victoria, Australia. According to his hypothesis, water has had little or no importance in shaping the Martian landscape. Instead, his 'White Mars' model contends that the gurgling, frothing and sometimes explosive venting of carbon dioxide gas from beneath the surface created the features. Outrageous as Hoffman's hypothesis is, it is supported by several significant observations that seem to deny a watery Mars. The Mars Global Surveyor has not detected any carbonate minerals that should have been created when water interacted chemically with the planet's CO2 atmosphere. Surface photos fail to show the fine networks of tributaries that should have fed the larger drainage features if water were the agent of erosion. There is no evidence of large lakes or reservoirs at the heads of the so-called "flood channels." Except for a small amount of water ice at the poles, Mars is dominated by solid and gaseous CO2. One would not expect that carbon dioxide could mimic erosion features like those carved out by terrestrial ...
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... Dearth of Continental Hot Spots ECH4 Non-Random Distribution of Hot Spots ECH5 Thermal Plumes Correlated with Other Geophysical Activity EQ SEISMIC PROBING OF INNER EARTH EQA LOCALIZED STRUCTURES IN THE CORE AND MANTLE EQA1 Stratification of Basement Rocks EQA2 Deep Continental Roots EQA3 Deep Penetration of Subducted Slabs EQA4 Lateral Inhomogeneities in the Lower Mantle EQA5 Mysterious Structures at the Core-Mantle Boundary EQA6 Seismic Reflectors EQD SEISMIC DETECTION OF LARGE SCALE DISCONTINUITIES, ZONES, STRUCTURES EQD1 Velocity Discontinuities EQD2 Channels and Zones EQD3 Structural Anomalies of the Inner Core EQD4 Anomalies Associated with Mantle Convection Cells EQQ ANOMALOUS SEISMIC SIGNALS EQQ1 Deep-Focus Earthquakes ES STRATIGRAPHIC ANOMALIES ESA EMBEDDED ACCRETION STRUCTURES ESA1 Cylindrical Structures in Rock and Unconsolidated Sediments ESA2 Spherical Aggregates ESA3 Concretions ESA4 Small Fused Structures ESA5 Geodes ESA6 Orbicules ESB ANOMALOUS BIOLOGICAL PHENOMENA IN GEOLOGY ESB1 Biological Extinction Events ESB2 Biological Explosion Events ESB3 Recent Vegetation and Shallow Water Fossils at Great Depths ESB4 Long-Buried, Undecomposed Organic Matter ESB5 Living and Fossil Marine Organisms Found Far Inland ESB6 Living Organisms and Recent Fossils at Very High Altitudes ESB7 Growth Structures on Marine Organisms and Their Fossils ESB8 Animals Entombed in Rocks ESB9 Living Organisms at Great Depths ESB10 Fossils of Warm-Climate, Light Dependent Organisms Found in the Polar Regions ESB11 Time-Wise Anomalous Fossils ESB12 Skipping in the Fossil Record ESB13 "Special" Nature of Fossils ESC ANOMALOUS CHEMICAL PHENOMENA IN GEOLOGY ESC1 Chemical Anomalies in the Stratigraphic Record ESC2 Chemical Anomalies in Igneous and Metamorphic Rocks ESC3 Surface Films on Rocks ESC4 Spontaneous, Rapid, Exothermic Reactions in Nature ESC5 Death Gulches ESC6 Violent Lake Turnovers ESC7 Petrifactions and Lignifications ESC8 Geological Effects of Natural Combustion ESC9 Rocks and Sediments of ...
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... 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 of the Red Sea Reversal of Niagra Falls and Related Phenomena GHG GEYSERS, PERIODIC WELLS, BLOWING CAVES GHG1 Geysers at Sea GHG2 Geysers and Blowing Wells Correlated with Weather Phenomena GHG3 Geysers and Intermittent Wells Correlated with Tidal Forces GHG4 Cold-Water Geysers and Periodic Springs and Wells [GHQ6] Hydrothermal Earthquake Precursors Hydrothermal Explosions Effect of Earthquakes upon Geyser Activity GHS THE BEWILDERING VARIETY OF TIDES GHS1 Sun-Dominated Tides GHS2 Sea and Lake Seiches... GHS3 Spectacular Tidal Bores GHS4 Diurnal, Triple, and Quadruple Tides GHS5 Long-Period Tides of Unexpected Strengths GHS6 Tides That Precede the Moon Extraordinary Tsunamis Tsunami Cycles GHT OCEAN TURBULENCE AND CIRCULATION PHENOMENA GHT1 Extraordinary Deep Circulation Events GHT2 Sonar-Detected Subsurface Oceanic Structures GHT3 Nonvolcanic Underwater Eruptions GHT4 Anomalous El Ninos GHT5 The Guinea Tide GHT6 Energy Transfer to Hurricanes GHT7 Oceanic Rings and Eddies GHT8 Large-Scale Oceanic Chemical Anomalies Deep-Sea Storms Curious Drifts Gas-Hydrate Blowouts Great Whirlpools and Vortices The Gibraltar Dam Oceanic Megaplumes Gulf-Stream Reversal Oceanic Dead Zones Organized Structures in Bubble Clouds North Atlantic Oscillations El Ninos Correlated with Seismicity GHW REMARKABLE WAVE PHENOMENA GHW1 Unexplained Solitary Waves ...
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... Science Frontiers: The Book Sourcebook Project P PSYCHOLOGY Catalog of Anomalies (Psychology Subjects)Within each of these fields, catalog sections that are already in print are given alphanumerical labels. For example, BHB1 = B (Biology)+ H (Humans)+ B (Behavior)+ 1 (first anomaly in Chapter BHB). Some anomalies and curiosities that are listed below have not yet been cataloged and published in catalog format. These do not have the alphanumerical labels. PB DISSOCIATIVE BEHAVIOR PBA AUTOMATIC COMMUNICATION Automatic Writing Automatic Drawing Glossalalia or "Speaking in Tongues" Planchette and Ouija-Board Phenomena Channeling Table-Tilting Xenoglossy [PHR] PBD COMMUNICATED HYSTERIA AND DELUSIONS Mass Hysteria and Psychogenic Illnesses Folie a Deux: Communication of Abnormal Mental States Self-Induced Delusions "Jumping" and Other Triggered Explosive Activities Abnormal Mass Delusions The Latah Phenomenon PBH HYPNOTIC BEHAVIOR (GENERAL FEATURES) General Features of So-Called "Hypnotic Behavior" Supposed Hypnosis by Telepathy Fascination by Inert Objects (" Spontaneous Hypnosis") Posthypnotic Behavior Effects of Magnetism on Hypnotically Induced Images Self-Hypnosis Drum Phenomena [BHB7, BHH8] Collective Hypnosis PBJ DEJA VU Deja Vu PBM MULTIPLE PERSONALITY Multiple-Personality Phenomena Hypnotic Probing of Secondary Personalities Possible Duality of Consciousness under Anesthesia PBP POSSESSION Going Berserk and Running Amok Spirit Possession Possession by Devils and Demons Vampirism The Windigo Psychosis Animal Possession (Lycanthropy) Witchcraft PBS ALTERED STATES OF CONSCIOUSNESS The Ultraconscious Transcendental/Mystical Phenomena Sensory Deprivation Break-off Phenomenon Peak Experiences, Ecstasy Trances (Mediumship) Conversion (Religious, Political) Meditation Spiritualism PBZ ANOMALOUS DREAM BEHAVIOR AND DREAM CONTENT Hypnotically Induced Dreams ...
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... Geology Geophysics Logic/mathemitics Archeology Psychology Miscellaneous phenomena Other pages Home Page Science Frontiers Online Science Frontiers: The Book Sourcebook Project A ASTRONOMY Catalog of Anomalies (Astronomy Subjects)Within each of these fields, catalog sections that are already in print are given alphanumerical labels. For example, BHB1 = B (Biology)+ H (Humans)+ B (Behavior)+ 1 (first anomaly in Chapter BHB). Some anomalies and curiosities that are listed below have not yet been cataloged and published in catalog format. These do 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 ...
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... But Not Male's Convergence of Shark and Camel Protein Convergence of Elephant and Insect Pheromone BMD DISTRIBUTION OF MAMMALS IN SPACE AND TIME BMD1 Remarkable Congregations and Concentrations of Mammals BMD2 Apparent Dearths and Absences of Mammals BMD3 Cycles in Mammal Populations BMD4 Exotic Mammals BMD5 Geographically Separated Populations of Flightless Mammals BMD6 Sharp Zoogeographical Divisions Despite Minimal Barriers to Movement BMD7 Decrease in Biodiversity with Latitude BMD8 Preference for Certain Geological Formations BMD9 Entombed Mammals BMD10 Late Survival of Mammoths and Mastadons BMD11 Current or Very Recent Survival of Giant Ground Sloths BMD12 Current Survival of the Thylacine BMD13 Current or Very Recent Survival of Steller's Sea Cow BMD14 Miscellaneous Potential Late Survivors Species Richness Correlated with Latitude BME THE FOSSIL RECORD OF MAMMALS BME1 Scarcity of Transitional Fossils in the Class Mammalia BME2 Persistence of Certain Mammalian Morphological Forms in the Fossil Record BME3 Explosive Radiations in Mammalian Evolution BME4 Unexplained Extinctions of Large Mammals BME5 The Failure of Evolution to Improve Mammal Survivability BME6 Anomalously Early Fossils BME7 Track-Like Markings in Ancient Strata BME8 Mammals with Histories Known Only from Subfossils BME9 Anomalous Distribution of Mammalian Skeletal Material BME10 Parallelisms in the Mammalian Fossil Record BME11 Pleistocene Dwarfing of Some Mammals BME12 Variations in Mammalian Teeth and Skeletons Show a Definite Direction Very Early Australian Placental Mammals Eurasian Apes as Ancestors of the Great Apes (and Humans) Aquatic Sloths Evolution of Cetacean Osmoregulation Evolution of Giraffe Necks Bipedal Apes (before Humans) BMF BODILY FUNCTIONS BMF1 Water-Breathing in Mammals BMF2 Remarkable Adaptations in Diving Mammals BMF3 Oddities of Digestion BMF4 Perpetual Growth in Mammals BMF5 Limb Generation in Mammals BMF6 Anomalies of Hibernation in Monotremes BMF7 The "Winter Sleep" of Bears BMF8 Freeze- ...
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... Science Frontiers ONLINE No. 127: Jan-Feb 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Nuclear bombs will not save the earth!Not too long ago, geologists adamantly denied that there were any large meteor craters pockmarking our planet. Now, they find 100-kilometer craters on a regular basis. And scientists are casting worried looks at those near-earth asteroids, knowing that one day one will be on a collision course. Not to worry, say the modern-day Technocrats, we will launch nucleararmed rockets that will nudge such cosmic threats into harmless trajectories. These Pollyannas are presumptious. They assume that asteroids are hard, cohesive objects that will be shoved aside by a few megatons of explosive energy. There are two things wrong with this idea, and these reveal how radically our ideas about the nature of asteroids have changed in just 10 years. First, most astronomers will now agree that asteroids are orbiting rubble piles rather than monolithic objects. For example, the near-earth asteroid Mathilde, 53 kilometers in diameter, has a density of only 1.3 grams/cubic centimeter. Its porosity must be greater than 50%. It is not a hard, coherent object. Instead of a bullet, it is more like a cloud of shotgun pellets. It would be hard to divert all this debris with a nuclear blast. To make matters worse, asteroids like Mathilde are stickier than a cloud of buckshot. This fact is deduced from photos of asteroids showing many to be marked by huge craters ...
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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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