... 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Krypton-cluster magic numbers Krypton atoms cluster together in stable clumps of 13, 55, 147, 309, 561,... atoms. Ordinarily, krypton, being a noble gas, does not enter into any combinations with other atoms - even other krypton atoms. However, P. Lethbridge and T. Stace, at the University of Sussex, have coaxed krypton atoms to cluster together in large, crystal-like clumps with icosohedral symmetry; that is each clump possesses 20 regular faces. The coaxing occurs when gaseous krypton trickles into a vacuum chamber through a hole only 200 micrometers in diameter. The expansion of the gas cools it so that when krypton atmos collide, relative velocities are low, and the weak Van de Waals forces between the atoms are sufficient to hold the clumps together. So far, clumps of 147 and 309 atoms have been detected with a mass spectrograph. One theory of atomic "pack ing" predicts clumps should have "magic numbers" of 13, 55, 147, 309, 561, 923 .. .. So far, the "magic" has been working! (Baggott, Jim; "Krypton Atoms Cling Together in 'Shells,'" New Scientist, p. 31, March 3, 1990.) Comment. One would anticipate that the smaller clumps of 13 and 55 atoms would be easier to assemble. From Science Frontiers #69, MAY-JUN 1990 . 1990-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 81: May-Jun 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects More Mouse Engineering Shortly after writing in SF#79 about the "Ancient Greek Pyramids" and the Saharan mice that construct small pyramids of pebbles to extract moisture from the air, we serendipitously ran across the following: " Australian Native Mice . The species P. chapmani builds low mounds of pebbles over its burrow systems, and P. hermannsburgensis may use these mounds after they are constructed. The pebbles are of a uniform size and cover a large area, often a meter in diameter. The pebbles are probably collected both by excavation and from the surface. Some local mammalogists believe these are used as dew traps. Since the air around the pebbles warms more rapidly as the sun rises than do the pebbles themselves, dew forms on the pebbles by condensation. As the areas in which these mounds are found are quite dry, except after a heavy rain, these dew traps solve the problem of water shortage. Local farmers use the many pebble mounds for mixing concrete. It is believed that the ancient people of the Mediterranean region used a dew trap method comparable to that of P. chapmani ." (Nowak, Ronald M.; "Australian Native Mice," Walker's Mammals of the World , Baltimore, 1991, p. 820.) Comment. Now we must decide between at least three possibilities. Since the Australian native mice and Saharan mice are many thousands of miles apart, we have: (1 ...

... 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 Post-lightning glows The following observation was recently posted on a computer bulletin board by Rodney Jones. The printout was submitted to Science Frontiers by Mike Epstein. "We were in the deep French countryside a few weeks ago, and during our stay, we had two spectacular thunderstorms. One lasting three hours and one lasting six hours. "One of the attributes of this particular area (halfway between Cahors and Agen) is the dark night skies -- right down to the horizon (I saw constellations low in the southern sky that I'd only seen on star charts). "On the occasion of the six-hour storm (which started about eight thirty in the evening), whenever the rain abated, we went outside and watched. "During a total of approximately 1 hour of watching, I observed phenomena I had never (consciously) seen before. Following ground strikes (probably over the horizon), on at least eight occasions, the ground end of the strike (i .e ., on the horizon) would be glowing for anything up to thirty seconds. "On one particular occasion, my brother was recording the proceedings with a camcorder. I saw a big ground strike followed by a glow on the horizon. I was trying to direct him to that spot, when there was another ground strike 5-10 degrees to the right of the glow; then, maybe a second ...

... Science Frontiers ONLINE No. 105: May-Jun 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Real perpetual motion?Physicist R.A . Webb and coworkers magnetically induce electrical currents in tiny gold rings at the University of Maryland. The ring temperatures are low but not in the superconducting range. Magnetic induction of electricity is of course perfectly allowable in physics. What is not theoretically permitted is for tiny currents to persist long after the magnetic field has been turned off. The currents are small, only 10-6 of an ampere; but, they are there, and they shouldn't be. (Lipkin, Richard, and Travis, John; "Electric Currents That Merely Flow," Science News, 149:126, 1996) Comment. If you conceive of electrical currents as mists of palpable electrons circulating around inside those gold rings, the situation does resemble perpetual motion. The referenced item is brief and not forthcoming on such mat ters. Do the currents eventually die out? Will any metal work? Does the phenomenon appear at room temperature? From Science Frontiers #105, MAY-JUN 1996 . 1996-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Ball of Light Clocked At 1,800 Miles/second!August 21, 1996. Sarpy County, NE. 1,800 miles/second! That's 6,480,000 miles/hour! This speedy phenomenon was captured on video tape by D. Morss and P. McCrone. These researchers were monitoring the top of a thunderstorm with low-light, high-speed video equipment, when the ball of light "popped out" of the top of a thundercloud and flashed across their instrument's field of view in 1/10 of a second. Nevertheless, it was caught on six video frames. Morss commented as follows: "It's something that you're going to have to scratch your head and think, 'What kind of phenomenon could form this kind of light?' .. .. . "It's got to be some kind of trapped charge that popped out of the top of a thunderstorm." (Anderson, Julie; "Ball of Light Leaves Scientists in the Dark," Omaha Morning Herald , December 18, 1996. Cr. L. Farish.) Comment. Perhaps 1,800 miles per second should really be 1,800 miles per hour. This velocity would be comparable with that of another very speedy "ball of light." May 25, 1997. Near Loco, Oklahoma. In what might be called a " ...

... Science Frontiers ONLINE No. 115: Jan-Feb 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Strangely Selective Spider Australia's funnel web spider is one of the world's deadliest. Before an antivenin became available, this species killed one human every four years. It is not this low death rate that impels us to mention this spider. It is because the bite of the funnel web is deadly only to insects and humans. All other mammals are said to be immune. Analysis of the venom yields the remarkable fact that it consists of 45 active compounds. One of these is specific to insect brain cells; another, to human nerve cells. (da Silva, Wilson; "Spider Gives Kiss of Death to Pests," New Scientist, p. 23, May 17, 1997.) Comment. Since humans are not on the funnel web's menu, it must be only a coincidence that its venom kills people so selectively. It would be nice to know if chimps, gorillas, and orangs really are immune. A related phenomenon is seen in the venoms of cone shells. These snails are much more dangerous to humans, particularly naive shell collectors. Their venoms are extraordinarily complex and contain hundreds, perhaps thousands, of toxins. Many of these are specific to potential prey. Once again, humans are not on the menu but are included anyway. (Concar, David; "Doctor Snail," New Scientist, p. 26, October 19, 1996.) Comment. ...

... losing height and coming closer. The outer edge of the circle I would describe as glowing and within that was another circular object, more intense, and within that was a brilliant pulsating white light as when the object was first sighted. The object reached its closest point to us by 2317 on a bearing of 040 T. "The object stayed in this position for approx. two minutes and then vanished within the outer glow, this glow finally fading from our sight also. At 2320 nothing was left to be seen of either the object or the glow. "I have tried to reproduce what the Skipper and I saw in sketch form. The object was also seen by several other vessels who were fishing in the area with us. The night was fine with a small amount of low cloud, a quarter moon and an average number of stars. Position of ship: 69 56'N , 33 46'E ." (Powdrell, H.; "UFO," Marine Observer, 47:177, 1977.) From Science Frontiers #3 , April 1978 . 1978-2000 William R. Corliss ...

... earth seeding the rest of the solar system?We begin with the lead paragraph from a recent letter to Nature from H.J . Melosh; "Recent evidence that the SNC meteorites originated on Mars raises the question of whether large impacts on Earth may eject rocks that could fall on Mars (or other planets in the Solar System) and, if so whether they might contain spores or some sort of viable microorganisms that would have the opportunity to colonize Mars." After some computations Melosh concludes: "It seems likely that the impacts that produced craters on Earth that are greater than 100 km in diameter would each have ejected millions of tons of near-surface rocks carrying viable microorganisms into interplanetary space, much in the form of boulders large enough to shield those organisms from ultraviolet radiation, low-energy cosmic rays, and even galactic cosmic rays. Under such circumstances spores might remain viable for long periods of time." (Melosh, H.J .; "The Rocky Road to Panspermia," Nature, 332:687, 1988.) Comment. Next we need a reasonable mechanism that spreads life through interstellar space. Light pressure, that's it; and the idea is over a century old! Incidentally, SNC is short for Shergottites, Nakhalites, Chassignites; all rare classes of meteorites. From Science Frontiers #58, JUL-AUG 1988 . 1988-2000 William R. Corliss ...

... at the periphery of science. The recent Third International Conference on Cold Fusion, held in Nagoya, Japan, drew 350 participants, including 50 from U.S . corporations and government laboratories. Hardly a wake! But also hardly a confirmation. Even with new results frequently reported, the incontrovertible, reproducible proof of cold fusion demanded by the scientific community still is lacking. A written confrontation between cold fusion protangonists and antagonists appeared in the March 1994 issue of Physics Today. The "pro" position was stated by E. Mallove, editor of the new journal: Cold Fusion : "The cold fusion phenomenon, in the view of many active in the field, is a spectacular new form of lattice-induced nuclear energy whose mechanism is still poorly understood -- as the mechanism of low-temperature superconductivity was for decades. That the nuclear products that have been found so far are incommensurate (by conventional theory) with the non-chemical-magnitude excess energies simply means that the results have to be explained by new physical mechanisms." Of opposite polarity were remarks by J.R . Huizenga, author of the debunking book: Cold Fusion: The Scientific Fiasco of the Century : "In contrast to Mallove's declaration that cold fusion is a "spectacular new form of lattice-induced nuclear energy," I conclude that there is no persuasive evidence to support this far-out claim. Instead, cold fusion as a nuclear process producing watts of excess heat is more likely than not to be an example of pathological science." Of historical interest in this ...

... Dec 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cold fission?That's right: "fission" not "fusion." A recent number of Science News carries an intriguing suggestion from J. Brind: "Has anyone considered the possibility that the anomaly of "cold fusion" experiments -- high energy yields with few neutrons or tritium nuclei -- might result from a case of mistaken identity? There are a number of nuclear fission reactions that produce neither neutrons nor tritium, yet yield large quantities of energy." One such reaction is: 7Li+ 1H = 2(4He)+ 17.3 MeV. This is a very clean nuclear reaction that might one day be harnessed for everyday use, given lithium's low cost and abundance. The "cold fusion" effects could well come from captures of deuterons by 6Li, which is present in natural lithium. (Brind, Joel; "Cold Fission?" Science News, 137:163, 1994.) From Science Frontiers #96, NOV-DEC 1994 . 1994-2000 William R. Corliss ...

... 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., et al; "Giant Sea-Bed Pockmarks: Evidence for Gas Escape from Belfast Bay, Maine," Geology , 22:59, 1994. Ref. 2. Vogt, Peter R., et al; "Methane-Generated (? ) Pockmarks on Young, Thickly Sedimented Oceanic Crust in the Arctic: Vestnesa Ridge, Fram Strait," Geology , 22:255, 1994.~ Ref. 3. Paull, Charles K., et al; "Methane-Rich Plumes on the Carolina Continental Rise: Association with Gas Hydrates," Geology , 23:89, 1995. SF#xx = Science Frontiers #xx. SF#25 and ...

... were simply the headlights of automobiles traveling along Route 787. The Saratoga display is a bit eerie but not at all mysterious, according to HAST. The Marfa Lights turned out to be more impressive and, in consequence, quite a tourist attraction. The favorite viewing site is on Highway 90, 9 miles east of Marfa. HAST logged a total of 9 hours of observation there on three successive nights. All of the lights observed were easily attributed to cars traveling north from Presidio to Marfa. People at the viewing site who knew of the Presidio-Marfa road had no trouble identifying the lights as those of automobiles. But those unaware of the road called the lights mysterious. As for the frequent reports of Marfa lights cavorting and executing strange maneuvers, HAST thought they were probably due to low-flying aircraft in the neighborhood of the Chianti Mountains some 40 miles away. In fact, just such a plane was observed during a daylight trip to Shafter, a town near the mountains. Admitting that the Marfa Lights are indeed entrancing and even mildly mystical, the report closes (rather incongruously for an admittedly skeptical writer) with: "A reminder that caution must be taken. Because what we saw four nights in Saratoga and three nights in Marfa did not go out of the bounds of the ordinary does not mean that the extraordinary has never occurred in either place." (Lindee, Herbert; "Ghost Lights of Texas," Skeptical Inquirer, 16:400, 1992.) Comment. Previous descriptions of the Marfa lights in Science Frontiers (# 34 and #51 ...

... of the topsoil beneath our feet seethes with thousands of microorganisms. It is less well known that life's domain extends down much further. The hard rocks and strata of earth's crust -- seemingly sterile and inert -- are continuously being transformed by bacteria and other life forms. In fact, it was easy to find three examples of such processes from the literature collected from the past two months. Although the discoveries reported below may seem dull to anomalists ued to more exciting fare, it may well be that life from "inner space" has been and will be more important to humankind than life from "outer space," as implied in third item! Bacteria and placer gold. "Lacelike networks of micrometresize filiform gold associated with Alaskan placer gold particles are interpreted as low-temperature pseudomorphs of a Pedomicrobium -like budding bacterium. Submicron reproductive structures (hyphae) and other morphological features similar to those of Pedomicrobium occur as three-dimensional facsimiles in highpurity gold in and on placer gold particles from Lillian Creek, Alaska." In short, bacteria help create placer gold deposits. The author believes that bacterioform gold is widespread. (Watterson, John R.; "Preliminary Evidence for the Involvement of Budding Bacteria in the Origin of Alaskan Placer Gold," Geology , 20:315, 1992.) Microorganisms and iron deposits. At least 500 million years ago, filamentous bacteria and/or fungi were already playing vital roles in the deposition of iron from hydrothermal fluids. Abundant microbial filaments indicative of biological activity are found in the Cambrian ironstones in Australia' ...

... a good cross section of the lake, plus some thoughts about potential ecosystems existing deep under the lake's ice. Although Lake Vostok lies under some 4 kilometers of ice, it remains liquid as geothermal heat seeps up through its floor. Surprisingly, the thick ice cover does not preclude all contact with the surface above. The covering ice sheet moves slowly across the lake and, as it does so, its bottom melts a bit, releasing frozen-in oxygen as well as life forms -- still-living microorganisms and dead creatures that fell onto the Antarctic ice thousands of years ago. Thus, there is a perpetual source of food and new life. Cores drilled from the ice sheet capping Lake Vostok have brought up a great diversity of live microbes that have survived despite the low temperatures and passage of time. A living unicellular alga was found 2,375 meters down in ice about 110,000 years old. Spore-forming bacteria brought up from 2,395 meters are about 200,000 years old and still alive! Although science has proclaimed that Lake Vostok biology must consist entirely of microorganisms, no one really knows what is down there. Another fascinating fact is that some 70 other subglacial bodies of fresh water have been found under the central Antarctic ice sheet. Lake Vostok is only part of a "vast hydrological system." (Kapitsa, A.P .; "A Large Deep Freshwater Lake beneath the Ice of Central East Antarctica," Nature, 381:684, 1996. Monastersky, R.; "Giant Lake Hides beneath Antarctica ...

... taken on its usual darkorange or red appearance; even with half its diameter above the horizon, the sun was much too bright to view directly. As the last segment of the sun dipped below the horizon, a blue 'horn' formed at each end of it, as shown in sketch (a ), and these then closed up to form a bright-blue arc, as shown in sketch (b ). " (Leslie, A.J .; "Blue Flash," Marine Observer, 66:115, 1996) Comment. The blue flash is a shorter-wavelength version of the green flash. The basic phenomenon is explained in terms of dispersion of the sun's spectrum by the atmosphere near the horizon. Even so, many enigmas remain about these low-sun phenomena. There have been observed: multiple flashes, flashes preceding sunset, complex flash structures, and the apparent psychological origin of some flashes. For details, see GEL1 in Rare Halos, Mirages. This book is described here . From Science Frontiers #108, NOV-DEC 1996 . 1996-2000 William R. Corliss ...

... must really be something to the phenomenon! Spook Hill is located on a section of road in Lake Wales, Florida. Here, at Spook Hill, the road "seems" to slope downhill, but yet cars in neutral apparently roll up the incline. Wilder, a member of the Tampa Bay Skeptics, made several pertinent observations during his investigation: "( 1 ) Although the phenomenon is striking when one approaches Spook Hill from one direction, if one gets out of the car and looks back, it is quickly apparent that one's senses have been deceived. Because the illusion fails when one looks in the opposite direction, the road has been made one-way, so that tourists will not be disappointed! "( 2 ) A storm drain is positioned at the true low point of the road, and cars seem to roll up to the drain. Water, in its gravitational wisdom, knows where to go! Neither were the city engineers fooled." Conclusion: Spook Hill is only an amusing illusion; there is no gravitational anomaly. (Wilder, Guss; "Spook Hill: Angular Vision," Skeptical Inquirer, 16:58, 1991.) From Science Frontiers #79, JAN-FEB 1992 . 1992-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 90: Nov-Dec 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A New Class Of Solar System Objects For decades astronomers have suspected and searched for Planet X, a large body beyond Neptune swinging slowly about the sun and gravitationally perturbing Neptune's orbit. Planet X has never been found, but somewhere out there are some pretty hefty bodies, as described by T. Van Flandern: "The discovery of a second miniplanet beyond Neptune, 1993 FW, augments the discovery of 1992 QB1 last fall. Both objects are believed to be in the 200-300-km-diameter range, with magnitudes between 2324, distances at discovery between 40-45 AU, and low inclinations.... Although the discoverers of these two objects hailed them as the first representatives of the elusive 'Kuiper belt' of comets, other theoreticians have confirmed that the line of reasoning leading to the suggestion of such a belt is spurious. That fact, combined with the absence of any comet-like characteristics in these two new objects, their relative size as compared with any other known comet, and their unusually red coloration, seem to make them the first-discovered members of a new class of solar system bodies. Since the searches leading to their discovery have examined only 1.5 out of tens of thousands of square degrees of sky wherein such objects might be discovered, it seems a reasonable conjecture that thousands of additional similar objects will ultimately be found. In short, it appears at this ...

... "Aaaaaargh," New Scientist, p. 93, April 11, 1998.) Mummified llamas yield superior wool. The wool found on a group of mummified llamas that had been sacrificed and buried some 1,000 years ago in Peru had hair far finer than cashmere and far superior to that of modern llamas. The ancient Peruvians apparently knew how to breed their animals to accentuate certain features. Their secret was lost during the Spanish conquest. (Anonymous; "Mummified Llamas Yield Superior Wool," NEARA Transit, 10:6 , Spring 1998.) Telestomping elephants. Elephants, rhinos, okapis, and even some birds use infrasound (frequencies below 20 Hertz) for communication. At a recent meeting of the American Acoustical Society, University of California researchers reported that elephants also send low-frequency acoustic signals by stomping the ground. Almost inaudible in the air, the sounds travel through the ground and can be picked up by ground microphones. It is thought that this communication channel has a range of as much as 50 kilometers -- far greater than the sounds could be perceived in the air. Supporting this notion, anecdotes say that elephants somehow know when other elephants are being killed far, far away. They run in the opposite direction! But how do they detect the stomping sounds if they travel through the ground? (Anonymous; "Stomping Ground," New Scientist, p. 25, December 13, 1997.) Some sperm are immense -- and nutritious. Fruitflies smaller than a tomato seed pro-duce sperm almost 6 centimeters (2 . ...

... above Hurricane Hugo by Minnesota-based SKYFLASH equipment. Hurricanes, of course, are accompanied by thunderstorm activity. Said apparatus consists of three photmetric telescopes using photomultiplier tubes with 19-inch parabolic mirrors. A variety of light pulses appearing in the night sky have been recorded during SKYFLASH surveys. The most puzzling types of flashes were the "long" events, which lasted about 20 milliseconds, with slow rises and falls. During the "long" flashes, no sferics (radio disturbances) are detected, whereas the more common shorter flashes are accompanied by sferics. However, during Hurricane Hugo, these mysterious "long" flashes occurred much more frequently than usual. The origin of the "long" flashes remains unknown. (Winckler, J.R ., et al; "Fast Low-Level Light Pulses from the Night Sky Observed with the SKYFLASH Program," Journal of Geophysical Research, 98:8775, 1993.) Comment. The "light rays," the "jellyfish," and the "long" flashes may be different aspects of the same phenomenon. In any case, some sort of unrecognized electrical activity is transpiring between storm-cloud tops and the ionosphere. Reference. "Rocket lighting" and other unusual electrical discharges are cataloged in: Lighting, Auroras . To order, visit: here . From Science Frontiers #90, NOV-DEC 1993 . 1993-2000 William R. Corliss ...

... gases) starts on Mars and the surface temperature warms up by about 20 K. The regolith and polar caps release their CO2 and the pressure rises to 100 mbar. One of two things could then happen. If there were large regolith and polar CO2 reservoirs, the pressure would continue to rise on its own. If these were absent, the CO2 pressure would stabilize, and additional CO2 would have to be released from carbonate minerals. At this point (perhaps between 100 and 105 years) Mars may be suitable for plants. If there was a mechanism for sequestering the reduced carbon, these plants could slowly transform the CO2 to produce an O2-rich atmosphere in perhaps 100,000 years. If sufficient N2 could also be released from putative soil deposits, and the CO2 level kept low enough, then a human- breathable atmosphere could be produced. (McKay, Christopher P., et al; "Making Mars Habitable," Nature, 352:489, 1991.) Comment. There is more to terraforming, but you get the idea from the above quote. Now. J. Lovelock and others have speculated that our earth is much like a living orgaism that, with the help of the biosphere, maintains conditions suitable for life; that is, the Gaia concept. Terraformers of Mars would some-how have to induce Gaia to emigrate to Mars to regulate things there. Or, since we are on a science-fiction kick, could it be that the earth itself was intentionally "terraformed" in the distant past and Gaia installed for our benefit ...

... cold fusion." Bockris himself has achieved positive cold-fusion results in his lab at Texas A&M . Another panel member, R. Huggins from Stanford, who has also replicated Utah's cold fusion results, remarked that several other U.S . labs have achieved excess power levels of 10-30 watts/cc. (Anonymous; Access to Energy , p. 4, October, 1989. Cr. P.F . Young) Despite positive results like those mentioned above, a recent report in Nature, by scientists at Cal Tech and the University of California, states emphatically that they can find no excess heat, neutrons, gamma rays, tritium, or helium in their cold-fusion experiments. (Lewis, N.S .; "Searches for Low-Temperature Nuclear Fusion of Deuterium in Palladium," Nature, 340:525, 1989.) From Science Frontiers #66, NOV-DEC 1989 . 1989-2000 William R. Corliss ...

... " Summary . -- 25 well-documented (and published by Stevenson in 1970) cases of intense paranormal (' telepathic') experiences concerning death or illness of friends of family were analyzed according to the global geomagnetic activity (the aa index) as the times of their occurrence. The characteristics of these cases were representative of the general literature and occurred between the years 1878 and 1967. All 25 experiences were reported to have occurred on days when the geomagnetic activity was less than the means for those months. Repeated measures analysis of variance for the daily aa indices for the 7 days before to the 7 days after the experience confirmed the observation that they occurred on days that displayed much less geomagnetic activity than the days before or afterwards. These results are commensurate with the hypothesis that extremely low fields, generated within the earth-ionospheric cavity but disrupted by geomagnetic disturbances, may influence some human behavior. " (Persinger, Michael A.; "Geophysical Variables and Behavior: XXX. Intense Paranormal Experiences Occur during Days of Quiet, Global, Geomagnetic Activity, " Perceptual and Motor Skills, 61:320, 1985.) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...

... Weber and Greenberg think not -- under certain conditions. The collision of a large comet or meteorite could inject spores from a life-endowed planet into space safely, particularly if the impacting object glanced off into space pulling ejecta after it. The terminal phase, the capture of spores from a passing molecular cloud by the solar system and then the earth, would be nonlethal if the spores were somehow coated with a thin veneer of ultraviolet absorbing material. In sum, the experiments place limits on panspermia, but do not rule it out by any means. (Weber, Peter, and Greenberg, J. Mayo; "Can Spores Survive in Interstellar Space?" Nature, 316:403, 1985.) Comment. Weber and Greenberg do not discuss the possible existence of dense, low-temperature regions in molecular clouds where conditions might be conducive to the development of large molecules. Does life have to have the proverbial warm, sunlit pond to develop? From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...

... radiocarbon (C1 4 ) scale is in serious error beyond 10,000 years BP. Radiocarbon dating is widely used in archeology, but it has always been hard to estimate how much radiocarbon was present in the earth's atmosphere thousands of years ago. As a matter of fact, even before Fairbanks' discovery, a major correction to the radiocarbon time scale was made using tree-ring counts as an absolute reference. But tree ring data go back to only about 10,000 years. The latest correction was made by E. Bard, also at Lamont-Doherty, who took Fairbanks' coral cores and compared the radiocarbon dates with uranium-thorium dates. The result is that at 20,000 BP, the radiocarbon date is 16,500 BP, 3500 years too low. [Of course, all this as sumes that the uranium-thorium dates are accurate.] Use of the newly corrected radiocarbon scale has pushed the peak of the Ice Ages back from 18,000 BP to 21,000 BP. But there is more. The same article in Science, without saying how he came up with the number, has Bard fixing the strength of the earth's magnetic field at only half its present level 20,000 years ago. This is most interest-ing because over the last 400 years of direct measurements, the geomagnetic field has been steadily decreasing! When and why was there a peak in the intensity of the geomagnetic field? Back to Fairbanks, who also used his coral data to estimate changes in global sea level versus time ...

... : "It is generally agreed that both regions have been settled from the north, yet no trace has been found of the first settlers in either North America or northern Australia. In northern Australia one finds groundedge axes at up to 23,000 b.p ., which have no counterparts in the probable catchment area of the first colonizers, Indonesia; while in North America the earlist human settlers used elaborate projectile points, which have no counterparts in the final Pleistocene of eastern Siberia. When and where did such innovations then evolve?" Bodnarik's aolution to this double dilemma assumes that the first colonizers in both cases did indeed come from the north-- -some 40,000 years ago in both Australia and North America - but that their invasion paths were confined to the low coastal areas. Then, as the Pleistocene ended and the ice sheets melted, the sea level rose to obliterate the signs of earliest occupation. Therefore, if archeological digs could be conducted under a few hundred feet of water along the continental shelves, the artifact gap could be filled! (Bodnarik, Robert G.; "On the Pleistocene Settlement of South America," Antiquity, 63:101, 1989.) Comments. Dredges have brought up elephant teeth from the continental shelf of earthern North Ameriva, but we are not aware of any human artifacts. The continental shelf along North America's west coast is hardly a thoroughfare, for it is very narrow. *Very old signs of human activity have now (1997) been found in northern Australia. (SF# ...