190 results found.
... Project Sourcebook Subjects Throat-Singing Humans are born with one organ that is capable of astonishing performances that greatly exceed what is required for the tracking of animals and the grubbing of edible roots. This is the human brain, of course. Not as widely appreciated for its versatility is the human vocal tract. It can generate much more than brute grunts. It renders operatic arias of great beauty and frequency range. The vocal tract can do even more than that; it can carry two musical lines simultaneously. This skill is called "throat-singing" or "overtonesinging." The best-known throat-singers live in the Tuva region of southern Siberia. The semi-nomadic herders of this wild region were evidently inspired to develop throat-singing so that they could better mimic the sounds they heard in nature: the singing of birds, the wind, the sounds of insects. Throat-songs have two components. The first is at a low, sustained fundamental pitch, which can be likened to the drone of a bagpipe. The second, superimposed on the low drone, is a succession of flute-like sounds that resonates high above the drone. It is the second component that can be controlled so as to mirror natural sounds. The result is like nothing Mozart or Verdi conceived. But it is an art form valued in Tuva and a talent rather remarkable from a biologist's perspective. One should compare the vocal tract to an organ pipe with its standing waves, except that the human pipe is only 7 inches long in the average adult male. ...
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... 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 people perceive electromagnetic bursts as sounds. From Science Frontiers #125, SEP-OCT 1999 . 1999-2000 William R. Corliss ...
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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 Caves As Musical Instruments In past issues of SF, we have reported how some ancient rock art was intentionally painted on rock faces so that echos, as from a handclap, would not only be unusually loud but have some relation to the painting, as in the clatter of hooves. (SF#86) In a similar vein, some manmade chambers, such as New Grange (3 ,500 B.C .) were configured to enhance the subjective effects of ritual chanting. (SF#102) A fascinating article in Pour la Science , has described how ancient paintings in some of Europe's famous decorated caves were placed where sound resonated. To illustrate, examine the accompanying illustration of the north wall of the Jeannel Gallery of Portel Cave, in Arlege. The long, looping dotted line indicates the amplitude of resonating sound at a frequency of 95 Hertz, as the long gallery behaves like a giant wind instrument. The peak occurs smack in the center of the decorated area. At the peak, in the dotted circle, there is a rocky projection in the shape of a (hard-to-see) feline head. On the opposite wall (not shown), the same peak coincides with an ocher circle that dominates a meter-long decorated panel. (Dauvois, Michael, et al; "Son et Musique au Paleolithique," Pour la Science , p. 52, no. 253, ...
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... Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Another Sucker Female beaked whales are usually toothless, and the males only have a couple of teeth that are used for fighting rivals. Yet, these whales have no problem catching and consuming their swift, fishy prey. Apparently, they first stun their dinners acoustically and then suck them in with the pump-like action of their muscular tongues. (AR#2 and BMA25 in Mammals I) Occasionally, whalers have caught sperm whales with congenital, grossly twisted jaws that are completely useless in hunting, yet these animals thrive on a rich diet of fast, elusive squid. A. Werth of Hampden-Sydney College theorizes that these much larger cetaceans also suck in their prey just like the beaked whales. Sperm whales also generate sound pulses so strong that they can very likely stun the giant squid, their preferred food, as they pursue them with their sonar in miledeep blackness. (BMO10 in Mammals II) (Pennisi, Elizabeth; "Coming to Grips with Whale Anatomy," Science, 283:475, 1999.) Comment. Sperm whales and beaked whales are only distantly related, so that we have an interesting example of the triple parallel evolution of hunting strategy, acoustic-stunning capability, and large, piston-like tongues. Sperm whales may stun their prey with high intensity sound From Science Frontiers #122, MAR-APR 1999 . 1999-2000 William R. Corliss ...
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... invaders of its territory. The flat sides and silvery scales of this species make highly efficient mirrors. These fish have learned how to maneuver their bodies so as to reflect bright flashes of sunlight directly into the eyes of their opponents. These intense bursts of light are often enough to burst blood vessels in the eyes of the target fish -- sometimes even stunning it. Pairs of Amazonian angel fish have been observed flitting about in "light-fights" as they attempt to zap each other and avoid optical counterattacks. (Anonymous; Creation/Ex Nihilo , 21:7 , March-May 1999. Attributed to Sydney Morning Herald , October 13, 1998.) Comments. The use of light as an offensive weapon is reminiscent of those dolphins that stun their prey with powerful pulses of sound. Creation/Ex Nihilo is an Australian Creationist publication. It is easy to see why creationists focus on these lightfighting fish. Their weapons required the coevolution of flat sides, silvery scales, and the complex instinctive behavior needed for orienting their bodies relative to both the sun and their opponents. From Science Frontiers #123, MAY-JUN 1999 . 1999-2000 William R. Corliss ...
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... -Scale St. Elmo's Fire GLD4 Moving, Surface-Level, Electrified Light Patches GLD5 Discharge Phenomena during Duststorms and Snowstorms GLD6 Unusual Forms of St. Elmo's Fire GLD7 Luminous Aerial Bubbles GLD8 Earthquake Lights GLD9 Volcano Lights GLD10 Tornado Lights GLD11 Whirlwinds of Fire and Smoke GLD12 Anomalous Flashes Detected by Satellites GLD13 Enhanced Luminosity of Rocks GLD14 Luminous Phenomena in Water and Ice GLD15 Dazzling Lights in and on Clouds GLD16 Luminous Patches Moving on Cloud Surfaces GLD17 Ground-Level Light Flashes The Zeitoun Phenomenon Luminous Discharges on Insects in Flight GLL LIGHTNING ANOMALIES GLL1 Luminous Phenomena Occuring above Thunderclouds (Rocket Lightning) GLL2 Bead Lightning GLL3 Colored Lightning with Unusual Features GLL4 Silent Lightning GLL5 Horizontal Lightning GLL6 Lightning from a Clear Sky GLL7 Crown Flash GLL8 Preference of Lightning for Certain Trees GLL9 Lightning Figures GLL10 Lightning Sounds (Other than Thunder) GLL11 Lightning's Pranks GLL12 Hot-Air Blasts Following Lightning Strokes GLL13 Unusual Geographical Preferences of Lightning GLL14 Black Lightning GLL15 Slow or Prolonged Lightning GLL16 Correlation of Lightning and Cosmic Rays GLL17 Lightning Superbolts GLL18 Cyclic Flashing of Lightning GLL19 Dual Lightning Discharges GLL20 Abnormally Long Lightning Strokes GLL21 Anomalous Electrical Fields and Currents during Lightning GLL22 Lightning Shadowgraphs GLL23 Wisps of Flame Left by Lightning Strokes GLL24 Tubular Lightning GLL25 Meandering Lightning GLL26 Ribbon Lightning GLL27 Spoked and Spider Lightning GLL28 Bipolar Nature of Large Electrical Storms GLL29 Gamma-Ray Flashes in Thunderstorms GLL30 Neutron Generation in Lightning Bolts GLL31 Unusual (Usually Deadly) Interactions between Lightning and Humans GLL32 Effects of Lightning on Vehicle Engines Sympathetic Lightning Gamma-Ray Emission by Lightning Mystery Mountain Deaths and Lightning Lightning and Anomalous Optical Events (AOEs) Lightning ...
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... FOSSIL RECORD OF BIRDS BBE1 The Fossil Record of Birds and Associated Paradigms BBE2 Evidence against the Dinosaur Origin of Birds BBE3 Protoavis: A Pre-Archaeopteryx Bird? BBE4 Unresolved Nature of Archaeopteryx BBE5 The Apparent Absence of Transitional Forms of Feathers BBE6 Fossils of Ostrich Ancestors in the Northern Hemisphere BBE7 Controversial Feathers of the London Archaeopteryx Fossil BBE8 Giant Fossil Eggs BBF BODILY FUNCTIONS BBF1 The Avian Respiratory System: Unique, Complex, Sophisticated BBF2 Avian Bodily Functions: Some Oddities BBG GENETICS BBG1 Species mtDNA More Diverse Than Morphology BBG2 Discordance in the Date of Divergence of Modern Birds BBG3 Discordances between Phylogenies Established from Morphology and DNA Analysis BBG4 Dearth of Introns in Birds BBI INTERNAL STRUCTURES AND SYSTEMS BBI1 Avian Magnetoreceptors: Hard to Find BBI2 Curious Internal Structures BBO ORGANS BBO1 Complexity and Sophistication of Some Owl Ear-Brain, Sound-Localization Systems BBO2 Regeneration of Brain Neurons BBO3 Curiosities of Avian Brains BBO4 The Pecten: A Unique Structure in the Avian Eye BBO5 Curiosities of Avian Eyes BBO6 High Complexity and Sophistication of the Avian Eye BBO7 Remarkable Tongue Adaptations BBO8 The Loss and Reduction of Reproductive Organs BBT UNUSUAL TALENTS AND FACULTIES BBT1 Infrasound and Atmospheric Pressure-Change Detection BBT2 Utility of Ultraviolet Vision in Birds BBT3 Echolocation: Parallel Evolution in Birds BBT4 Navigational Feats during Migration BBT5 Homing: Release Experiments BBT6 Curious Migration Phenomena: Navigation Errors? BBT7 Complexity and Sophistication of Avian Navigation BBT8 Inheritance of Migration Data BBT9 The Existence of Avian Migration BBT10 Sensitivity to Impending Weather and Earthquakes BBT11 Possible Unrecognized Senses BBT12 Remarkable Feats of Flight BBT13 The Origin of Avian Flight BBT14 Unanswered Questions Concerning Flightlessness BBT15 Some Curiosities of Avian Flight BBT16 Deep- ...
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... DISEASES AND PHENOMENA Stigmata and Psychosomatic Bleeding Blister Raising through Hypnosis Wart Removal Skin Electrical Properties Skin-Writing/Autographism Allergy Tests Eczema Patch Tests and Hypnosis PPT DENTAL HEALTH Caries and the Mind PPW WOUND-HEALING AND BLEEDING Wound Healing Bleeding PPX BODY CHEMISTRY Histamine Release Hemoglobin Response Poison Tolerance PS PSYCHOKINESIS PSB MENTAL CONTROL OF BIOLOGICAL PROCESSES Control over Microorganisms Control over Plants PSC CONTROL OF CHEMICAL AND NUCLEAR PHENOMENA Influencing Light Diffraction Influencing Random-Event Generators Influencing Nuclear and Chemical Reactions Photographic Effects (Thought Pictures) PSE MENTAL CONTROL OF THE ENVIRONMENT Control over Ambient Temperature PSM CONTROL OF MACHINES AND MATERIALS Technojinx Computer Interference Influencing Dice, Cascades, and other (Supposedly) Random Processes Spoon-Bending PK Parties Focussed Group Energy PSP POLTERGEIST PHENOMENA Seance Phenomena [PBA, PLG] Events Associated with Specific Individuals Apparently Spontaneous Unexplained Sounds, Object Movements, etc. Fire Poltergeists Direct Writing Levitation [PLG] Group PK PST TRANSPORTATION THROUGH BARRIERS AND TIME Apports Time Warps SORRAT Experiments Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...
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... 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 Ancient Stage Design In past issues of SF we have reported on the acoustical properties of rock-art sites (SF#83 and SF#123) and megalithic chambers (SF#102). This ancient recognition and use of the properties of sound to impress gatherings of people is rather remarkable for 4,000-5000 years ago. But we must be even more appreciative of megalithic-age talents when we discover that they also wedded visual effects with acoustical engineering when staging rituals and ceremonies. In effect, they were pioneering the design of auditoriums and church interiors. This marriage of architecture and sound was studied at two megalithic sites by A. Watson and D. Keating. Since we have previously attended to the acoustics of stone chambers, we will bypass their work on the huge chambered cairn called Camster Round and focus on the recumbent stone circle (RSC) called Easter Aquorthies near Aberdeen, Scotland. That RSCs are not ordinary stone circles is seen in this quotation from the paper by Watson and Keating. "Recumbent stone circles possess a number of characteristic features that have primarily been interpreted in visual or aesthetic terms. For example, their standing stones tend to be graded in height towards the southwest, creating a visual focus for the the large recumbent block itself, which lies between the two tallest stones. The recumbent at Easter Aquorthies is elaborated by two stones which project from its inner face to form an alcove. ...
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... Unusual Corposants May 8, 1998. North Atlantic Ocean. Aboard the m.v . Flinders out of Philadelphia bound for Pennington. The vessel had just passed through a weather front that produced frequent, violent sheet lightning. Green St. Elmo's fire was glowing on the aerials. "At about 2310 it was also noted that the lever extending about 18 cm over the ship's starboard bridge wing to position a deck light was also radiating light. This light was a pale violet glow extending in 'spokes' of 10 cm in length from the round end of the lever which was about 3 cm in diameter. "There were six individual and uniform spokes shot through with brighter purple and white bolts resembling lightning. Over the noise of the wind a sharp crackling and hissing sound could be heard coming from the phenomenon. "The seaman was called to have a look at the light, he attempted to touch it but the light receded as his finger approached within 3 cm of it. The effect died away at about 2340 as soon as rain started to fall." (Smedley, R.; "Corposants," Marine Observer, 69:55, 1999.) Comments. The corposant's six-fold symmetry is like that of snowflakes. Strange as it may sound, they may be a connection. First, recall what J. Maddox once wrote about snowflakes in Nature. "But the symmetry of the whole crystal, represented by the exquisite six-fold symmetry of the standard snowflake, must be the consequence of some cooperative phenomenon involving ...
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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 Knismesis And Gargalesis This item is not as serious as its pretentious title. Everyone has experienced both of these ominous-sounding physiological conditions. One can inflict knismesis upon one's self, but gargalesis requires someone else or perhaps a human-like robot (android) to perform the act. All right, so knismesis and gargalesis are really only the two recognized kinds of tickling; but the latter form stimulates several interesting physiological conundrums. First, let's separate the two conditions. Knismesis is very light stimulation of the skin, say by a feather. It rarely produces laughter and can be induced autonomously, by someone else, by a crawling insect, or even by mild electricity. Gargalesis cannot be selfinduced. It consists of heavier pressures applied to specific parts of the body, especially the ribs and arm pits. But the finger probing usually has to be done by someone else. Gargalesis is often very unpleasant but is nevertheless likely to be accompanied by smiles and laughter. In fact, gargalesis can be so disturbing that medieval torturers supposedly tickled some of their victims to death! (A variant of Chinese water torture?) Ticklish areas on the human body. Tickling becomes anomalous only with gargalesis. The questions are: Why does this kind of tickling elicit laughter when it is so unpleasant? Why cannot one tickle one's self this way? At least most people can't . Why does gargalesis exist ...
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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 Two Down-Falls "Falls" are a Fortean staple, particularly showers of fish and frogs. But the sky produces other exotic materials, such and blocks of ice and (ugh!) raw sewage. July 26, 1998. Rue, Switzerland. "On Sunday July 26, 1998, at around 9h 45m Central European DaylightSaving Time (7h 45m UT), a Rue farming couple were in front of their house when they heard a whistling sound "like a big rocket on August 1" (Swiss national holiday). They just had time to see a block of ice the size of a "football" pass in front of their field of vision and crash into the tarred path near to their farm. The block broke up into thousands of pieces and the witness recuperated [sic] the largest which was "the size of a skittle." The ice was "very hard" and "snow-colored." "The witness estimated the weight of the ice block at 7-8 kg and the piece he was able to recuperate at 6-7 kg. Unfortunately, he did not think of conserving the block in the freezer, and let it melt near his house after having shown it to his neighbor, who had also heard the noise." Swiss aviation officials claimed they could not identify any aircraft that might have been responsible "because of incertitude over the time of the incident" ...
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... Science Frontiers ONLINE No. 12: Fall 1980 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Astronomy Ephemeral Lines on Mars Little Big Bangs! Schizophrenic Neutrinos Biology Oh, Those Clever Plants Static on the Hare-lynx Cycle Signal The Currents of Life Geology The Earth's Ring The Rehabilitation of Cuvier The Field is Falling, the Field is Falling Geophysics Anomalous Sounds From An Australian Fireball Gravity Down, Mass Up Psychology Nses and reality (whatever that is!) ...
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... Science Frontiers ONLINE No. 27: May-Jun 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects How Trees Talk To One Another Trees talk only in children's cartoons -- that's currently accepted wisdom. But when trees attacked by caterpillars sound an alarm that other trees in the vicinity detect and heed, some sort of communication system seems required. The evidence is found in trees that react to caterpillar attack or leaf damage by making their leaves harder to digest. When one tree is attacked, not only does it start making less nutritious leaves but so do other trees as far as 200 feet away. No root connections have been found. In tests with potted maples and poplars inside plexiglass enclosures, the attack warning got through to trees in the same chamber but not to control trees outside the plexiglass. Thus, the warning seems to be transmitted by air -- probably chemically. David Rhoades is conducting further research at the University of Washington. (Boling, Rick; "Tree ESP," Omni, p. 42, December 1982. Cr. P. Gunkel) Comment. Question: How is the message received, decoded, and turned into biological action? If we could set up chemical "antennas" in the air around us, what other revealing messages would we "hear"? From Science Frontiers #27, MAY-JUN 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 38: Mar-Apr 1985 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Who Built the East Bay Walls? Ancient Engineering Feat Antarctica Revisited, Hapgood Acknowledged Astronomy Quasar, Quasar, Burning Bright; What Shifts Your Spectral Light? Unidentified Object Young Interplanetary Dust Neptune's Incomplete Ring Biology Whales and Dolphins Trapped Magnetically Listening with the Feet Life in the Dark Bad Year for Water Monsters Geology Galloping Glaciers Geophysics: The Sick Man of Science Geophysics Ball Lightning and Blue Flashes Green Cloud with Light Rays Still Another Mystery Cloud The Sounds That Shouldn't Have Been Expanding Phosphorescent Rings Two Snowflake Anomalies Psychology Hypnosis and Memory The Subtle Placebo ...
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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. 65: Sep-Oct 1989 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The samurai and the ainu Breaking the 12,000-bp barrier Astronomy Sweeping anomalies under the rug Fossil from mars? Biology The wood turtle stomp Why the hammer head? Initial bipedalism! Microorganisms at great depths Geology Fossil ufos Chemical surprises at the k-t boundary Geophysics Unusual sounds preceding lightning Books about the crop circles Psychology Pi in the mind! Calendar calculating by "idiot savants" General How fares cold fusion? How fares benveniste? ...
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... Science Frontiers ONLINE No. 68: Mar-Apr 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Dreams that do what they're told A few people can dream and, in their dreams, know that they are dreaming, and then take charge of their dreams, directing them to unfold according to their wishes. This all sounds occultish, to say nothing about far-fetched. It is called "lucid dreaming." F. van Eeden, a Dutch psychiatrist, defined lucid dreaming in this way: ". .. the reintegration of the psychic functions is so complete that the sleeper reaches a state of perfect awareness and is able to direct his/ her attention, and to attempt different acts of free volition. Yet the sleep, as I am able confidently to state, is undisturbed, deep and refreshing." Lucid dreams are real dreams. They occur during REM (Rapid Eye Movements) sleep, usually in the early morn ing, and they last 2-5 minutes. High levels of physical and emotional activity during the preceding day can encourage lucid dreaming. When lucid dreaming occurs, there are pauses in breathing, brief changes in heart rate, and changes in the skin's electric potential. There is even a recipe for triggering lucid dreaming. If you awake from a normal dream in the early morning, wake up fully but don't forget the dream. Read a bit or walk about, then lie down to sleep again. Imagine yourself asleep and dreaming, rehearsing the dream ...
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... Science Frontiers ONLINE No. 81: May-Jun 1992 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology LONG BEFORE THE VIKINGS AND POLYNESIANS BIOLOGICAL EVIDENCE FOR TWO VERY EARLY NEW WORLD CONTACTS Computer confirms crossing! The latte stones Astronomy Galaxy spins wrong way That's the way the universe bounces Indigestible supernova leftovers Biology More mouse engineering Plants of the apes Rhythms in rhythm Shc or h/t homicide? Eusocial beetles Geophysics Rayed ball lightning hits plane Auroral sounds Unidentified light explained? Four luminous spinning vortices Psychology The tyranny of the [normal] senses Folie a deux involving a dog! Chemistry & Physics MUTANT MOLECULES FIGHT FOR FOR SURVIVAL Deep-sixing 666s ...
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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 Straight from the horse's ear Vets at the Animal Health Trust in New Market, UK, had just removed a tumor from the lip of a 5-year-old Welsh pony, when they heard a strange, high-pitched hum emanating from its right ear. The hum was surprisingly loud and quite obvious to the surgical team standing a meter away. The hum's pitch was a steady 7 kilohertz. E. Douek, an ear, nose and throat surgeon, stated that audible sound coming from ears is extremely rare. Such sounds are usually caused by muscle spasms in the inner ear or throat, or by resonance due to abnormalities in the ear's blood supply. (Bonner, John; "Humming Horse Puzzles Vets," New Scientist, p. 5, April 29, 1995.) Comment. This is not the first time we have heard about humming ears. In SF#31*, H. Zuccarelli stated that human ears normally emit a faint reference sound, which mixes with incoming sound to form an interference pattern inside the ear. The resulting "acoustic holograms" allow humans and some other primates to locate the source of a sound without turning their heads. The affliction called "tinnitus" is evidently not involved. *SF#31 Science Frontiers #31. The book Science Frontiers also contains this reference. It is described here . From Science Frontiers #100, ...
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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 Underwater Thumps "Scientists based on the central California coast are trying to identify the origin of a mysterious underwater sound that disturbed surfers and divers for three weeks -- and then just as mysteriously disappeared. "The sound, made up of thumps occurring at 10-second intervals, was compared by one diver to five or six giant bongo drums going off simultaneously. Most experts have concluded that it was of human origin." As usual in such cases, no governmental or military sources knew anything about the thumps. (Shurkin, Joel N.; "Underwater Thumps Baffle Ocean Scientists," Nature, 371: 274, 1994.) From Science Frontiers #96, NOV-DEC 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 Ancient acoustical engineering In SF#86/43*, we reviewed R. Waller's acoustical measurements at ancient rock-art sites in Europe, North America, and Australia. Waller claimed that some rock art was intentionally placed where echos from the walls are not only exceptionally loud but are also qualitatively related to the art's subject matter, such as running hoofed animals. The Newgrange chamber, with acoustical nodes and antinodes. Antinode occur at the chamber's stone walls. In a similar venture, R.G . Jahn et al have taken sound generators and meters into the chambers of six ancient structures and measured their acoustical properties. The sites selected were: Wayland's Smithy, Chun Quoit, and Cairn Euny, all in the U.K .; Newgrange, and Cairns L and I, Carbane West, all in Ireland. All of these sites date back to about 3,500 BC. The chambers were all bounded by roughly hewn stones, but they had very different configurations. Newgrange was cruciform (see sketch); others were rectangular, beehive, and petalshaped. Quoting the abstract from the Princeton report, here is what the acoustical surveys found: "Rudimentary acoustical measurements performed inside six diverse Neolithic and Iron Age structures revealed that each sustained a strong resonance at a frequency between 95 and 120 Hz (wavelength about 3m). Despite major differences in chamber shapes and sizes, the ...
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... pool of molten magma at the bottom. Volcanic vibrations resonated in this chamber and, as the magma pool rose and fell, so did the fundamental tone. Rather than a fixed organ pipe, it was a natural trombone! Unfortunately, the "earth music" was always in the infrasound range, 8 Hertz and less, and could not be heard by the researchers directly -- only their instruments could "listen." (Schneider, David; "Country Music," Scientific American, 273:28, November 1995.) Comments. There is no physical reason why such a subterranean trombone cannot play in the audible range. Such a mechanism might explain some of the mysterious hums heard in various localities, such as the Taos hum. (SF#88) Many unusual natural sounds are cataloged in Chapter GS in our catalog: Earthquakes, Tides, Unidentified Sounds. Ordering information here . Some animals can hear infrasound. Pigeons, for example, have special organs on their legs (of all places!) that respond to infrasound. Could pigeons and other birds use "musical mountains" for homing and other navigation feats? From Science Frontiers #103, JAN-FEB 1996 . 1996-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 94: Jul-Aug 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Plane Weirdness Made Plain In SF#93, under the title: "Just Plane Weird," we questioned the long-term persistence of trailing vortices from aircraft wingtips. Could such vortices actually maintain their integrities for several minutes and thus produce the curious tubes of misty air and flapping sounds observed at the end of the Los Angeles airport runway? The answer seems to be YES, as confirmed below: "Wingtip vortices have a core diameter of 20 to 40 feet and, as they trail behind each wingtip, remain approximately two wingspans apart. Why don't they enlarge in radius and dissipate? The rapid acceleration at the outer edge of the vortex produces low pressure in the core, and this pressure differential creates enough centrifugal force to hold the system tightly together for three to seven minutes. After that, friction takes its course, breaking these stubborn twisters apart into mere turbulence." The rest of this article deals with how light aircraft can avoid these sometimes deadly horizontal "twisters." (Manningham, Micah D.; "Wake Turbulence," Private Pilot , p. 69, June 1994. Cr. W.A . Welch) From Science Frontiers #94, JUL-AUG 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Blindsight Also Occurs In Monkeys Blindsight is an eerie phenomenon. Humans with cortical blindness; that is, they have lost their primary visual cortex through brain damage or disease; can still detect objects and yet be unaware of them. Doesn't sound right, does it? The situation is this: A person, apparently totally blind, can somehow discern the location, form, and size of objects, but they will swear that they "see" nothing at all. In fact, they are blind by all tests. They have blindsight. One explanation of blindsight maintains that the visual cortex has not been totally destroyed, and that functional remnants remain. In scientific terms, blindsight represents "suboptimal functioning of the primary visual cortex." But now, A. Cowey and P. Stoerig report that they have totally removed the primary visual cortex from monkeys' brains. (Something one would not try with humans!) Tests with the visual cortex-less monkeys demonstrated that they possessed blindsight. Therefore, blindsight does not seem to be "suboptimal functioning" of a damaged brain -- at least in monkeys. Blindsight thus remains a mysterious biological function. How do blindsighted humans detect objects of which they are not visually aware? Somehow information about the visual world appears in the brain. (Cowey, Alan, and Stoerig, Petra; "Blindsight in Monkeys," Nature, 373: 247, 1995. Also ...
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... the much more famous 1908 Tunguska blast. More details have now been provided by M.E . Bailey et al in the Observatory, as based on old accounts that appeared in the British Daily Herald and the papal newspaper L'Osservatore Romano. Bailey et al write: "The Daily Herald report [March 6, 1931] describes the fall of 'three great meteors...[which]...fired and depopulated hundreds of miles of jungle...The fires continued uninterrupted for some months, depopulating a large area.' Unfortunately, although the fall is said to have occurred around "8 o'clock in the morning" 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 ...
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... Project Sourcebook Subjects Translating The Grand Traverse Stone The Grand Traverse Stone was plowed up about 1877 on a farm in Grand Traverse County, Michigan. A small boy following his father and plow picked it up. The stone is slate, ½ -inch thick, and 2 ½ inches on each side. The symbols on the Stone are similar to those in the Pan-Mediterranean alphabet in use about the time of Christ D.B . Buchanan, an American epigrapher, recently undertook the task of translating the Stone. Buchanan has built up an inscription data base containing the variants of symbols used in the Pan-Mediterranean alphabet. He found that most of the characters on the Stone could be found in his data base. Buchanan then converted the Stone's symbols to Roman equivalents and tested sound values in Greek and other Mediterranean languages. He concluded that the Stone used a late form of Vulgar Latin. His translation: "( I am) carrying (in accounts), 10 talents. To 10 (add) 1 voided (or useless). I am collecting (or sending) 11 only, 10 (of which) I can confirm. Transaction (is) 11 in all (or total)." The Grand Traverse Stone therefore seems to be a financial document of some kind. Buchanan dates it between 100 BC and 100 AD. (Buchanan, Donal B.; "Some Remarks on an Inscribed Stone from Grand Traverse Country, Michigan" NEARA Journal, 28:100, 1994. NEARA = New England Antiquities Research Association.) Comment. The ...
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... Subjects Earthquake Ripples In The Ionosphere During the January 1994 Northridge earthquake in California, the ground surface acted like a drumhead. By suddenly shoving the surface upwards by about 40 centimeters, the quake generated atmospheric disturbances that spread skyward at velocities of 1,000-2 ,200 kilometers/hour. Upon reaching the ionosphere, the waves created ripples that were detected by the array of navigational satellites that make up the Global Positioning System (GPS). (Monastersky, Richard; "Bouncing an Earthquake off the Sky," Science News, 146:415, 1994) Comment. The great 1964 Alaskan quake not only blasted the ionosphere, it generated air waves that were detected by a microbarograph at Berkeley, California, 3,130 kilometers away. See GSW2 in Earthquakes, Tides, Unidentified Sounds. For a description of this volume, visit here . From Science Frontiers #98, MAR-APR 1995 . 1995-2000 William R. Corliss ...
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... time was believed to have been a small asteroid about 20 meters in diameter. (Beatty, J. Kelly; "' Secret' Impacts Revealed," Sky and Telescope, 87:26, February 1994. Cr. P. Huyghe. Also: Broad, William J.; "Meteoroids Hit Atmosphere in Atomic-Size Blasts," New York Times, January 25, 1994. Cr. J. Covey) Comment. The Indonesian event mentioned above may be associated with the many recorded instances of transient brightenings of the entire sky (GLA14 in Lightning, Auroras, Noctural Lights ). The 1963 acoustic event might be related to the many mysterious booms or detonations heard down the decades, long before jet planes offended our ear-drums (GSD1 in Earthquakes, Tides, Unidentified Sounds ). Both of the books just mentioned are described here . From Science Frontiers #92, MAR-APR 1994 . 1994-2000 William R. Corliss ...
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... Subjects Stythe = choke damp This, according to an unabridged dictionary. Looking up "choke damp", it is found to be "a suffocating gas, chiefly carbon dioxide, found in wells, coal mines, and other pits, also called "blackdamp." Evidently, in the quotation in SF#102 describing the death of one Donald Tollett due to a stythe, the word "stythe" was used for the meteorological event itself rather than -- correctly -- for the gases sucked out of the coal mine by a sudden drop in atmospheric pressure. (Stepp, Richard; personal communication, November 26, 1995) Comment. Changes in atmospheric pressure are also the causes of "blowing caves" and "weather wells". See GHG2 in Earthquakes, Tides, Unidentified Sounds. To order, visit here . Incidentally, blowing caves were used in the very early days of aernonautics for testing aircraft models due to the lack of wind tunnels. From Science Frontiers #103, JAN-FEB 1996 . 1996-2000 William R. Corliss ...
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... ; "Morphology and Ionization of the Interstellar Cloud Surrounding the Solar System," Science, 265:1423, 1994. Also: Peterson, I.; "Finding a Place for the Sun in a Cloud," Science News, 146:148, 1994.) Comment. Note that the 2,000-8 ,000-year span brackets many key developments in human civilization. Also, see under ARCHEOLOGY in this issue. For a potentially serious effect this cloud may have on carbon dating. Getting back to Hoyle's "black cloud," we recall that his molecular cloud was sentient and intelligent, being a form of gaseous-phase life. Did our real gas cloud, now seemingly mute, communicate with ancient humans? "Clouds of the Gods." Sounds like a good book title! From Science Frontiers #98, MAR-APR 1995 . 1995-2000 William R. Corliss ...
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... 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-food company, which kept them from melting." "The largest chunk, now about the size of a fist, left a crater about one metre in diameter." .. .. . "' They are white, semi-transparent, with an irregular shape and what are apparently air bubbles on both the surface and inside the ice. Unlike manmade ice, the ice has air bubbles, is relatively light and doesn't have the layered structure of hailstones,' he said." ( ...
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... Frogs Make the Earth Move," New Scientist, p. 8, December 10, 1994.) Leaf-cutting ants. Leaf-cutting ants neatly excise penny-size pieces of leaves and tote them back to their fungus gardens. J. Tautz and colleagues, University of Wurtzburg, noted that the ants chirped as they sliced at the leaves with their jaws. With a little instrumentation, they discovered that during each chirp both ant and leaf vibrated at about 1,000 hertz. The vibration apparently rigidizes soft leaf tissues and makes them easier to cut. The same principle is used by biologists when they slice soft material for microscope examination. The leaf-cutting ants apparently invented the Vibratome millions of years ago. (Tautz, Jurgen, et al; "Use of a Sound-Based Vibratome by Leaf-Cutting Ants," Science, 267:84, 1995.) Comment. It is rather amazing that ants, viewed by most animal behaviorists as mere automatons, could parlay small random mutations into such a technically sophisticated technique. From Science Frontiers #98, MAR-APR 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 Just Plane Weird T. Surendonk has written to New Scientist how he and a friend would stop on Sepulveda Boulevard, at the edge of the Los Angeles airport, to watch the big jets come in directly overhead for a landing. "While the huge planes were impressive enough, our attention was captured by an event that sometimes occurred between twenty and thirty seconds after a plane had flown over: a thin tube of misty air would zap past us at apparently high speed accompanied by a rather loud flapping sound. "Sometimes the "mist" would follow a straight path, but often it would follow a really contorted path that made the "mist" look like a snake engaged in a rather violent path -- rather captivating to watch. "We suspected that the effect was some sort of remnant of the vapour trails that sometimes came off the tips of the wings and tried to confirm this by direct observation, but we could never keep track of such a trail for more than 5 seconds. Also, we were never totally convinced that the two effects were correlated. Anyway, wouldn't such a trail dissipate within a few seconds?" (Surendonk, Timothy; "Just Plane Weird," New Scientist, p. 58, March 5, 1994.) Comment. If these "mists" are merely trailing vortices, the long time delay between passage of the plane and the tube of mist is puzzling ...
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... Science Frontiers ONLINE No. 103: Jan-Feb 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Einstein's nemesis: di herculis DI Herculis is an 8th-magnitude eclipsing binary about 2,000 light years from earth. These two young blue stars are very close -- only one fifth the distance from earth to our sun. They orbit about a common center of gravity every 10.55 days. So far, no problem! The puzzle is that, as the two stars swing around one another, the axis of their orbit rotates or precesses too slowly. General relativity predicts a precession of 4.27 /century, but for DI Herculis the rate is only 1.05 /century. This does not sound like a figure large enough to get excited about, but it deeply troubles astronomers. D. Popper, an astronomer at UCLA, says: "The observations are pretty clear. I don't think there's any question there's a discrepancy and, frankly, it is an important one and it's unresolved." Accentuating the challenge to general relativity is the discovery that a second eclipsing binary, AC Camelopardalis, also violates general relativity in the same way. It seems that wherever gravitational fields are extremely strong and space-time, therefore, highly distorted, general relativity fails. Ironically, it was a very similar sort of astronomical observation that helped make general relativity a pillar of the scientific edifice early in the 20th. century. The orbit of Mercury precesses a ...
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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 Acoustical "vision" underwater When we (and all eyed animals) see an object, we are detecting light reflected from that object. When underwater, though, our vision is limited because light does not travel far. Sound, however, does; and sound is reflected from objects just as light is. This is of course the basis of underwater sonar, in which a sound source replaces the sun or a diver's floodlight. But even without an active sound source, the ocean is full of sound. Waves, rain, and the sounds made by marine animals create a background of noise that "illuminates" objects, not directly, but from the environment in general. Using only this enveloping background sound, it is possible to create acoustical images of objects. "Vision" of this sort is equivalent to "facial vision" in blind humans, who can hear objects using the environmental sound reflected from them. J. Potter and his colleagues at the National University of Singapore have constructed an array of underwater microphones that detects "slices" of the acoustical environment around it. When processed by a computer, images of objects emerge by virtue of the background noise reflected from them. This group has also estimated the ability of dolphins to detect and process background noise. They suggest that dolphins should be able to "see" objects at least 25 feet away without even using their active sonar; that is, ...
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... Science Frontiers ONLINE No. 109: Jan-Feb 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Biology Lite A coughing tree "The New Zealand Herald reported that hundreds of people are flocking off to a 3,400-year-old maidenhair tree southeast of Beijing, China, to hear the tree make a coughing sound at night. According to the Beijing Evening News, the tree makes the unusual sound several times during the night and resembles an old man coughing. "The tree is nearly 83 feet (25 m) high and nearly 50 feet (15 m) in circumference and is regarded as a living fossil. As many as 1,000 people at a time have visited the tree to witness the phenomenon since it was first reported April 5th. Speculation abounds as to what causes the coughing sound at night, but no reasonable explanation has yet been presented." (Anonymous; "Coughing Tree Attracts Hundreds," World Explorer , 1:6 , no. 8, 1996) Synchronicity and death. In category BHF35 in Humans II , we cataloged several cases where identical twins died almost simultaneously. We can add the following to that collection: "Identical twins John and William Bloomfield lived their entire 61 years together in Australia and died only minutes apart, on Sunday. Both John and William suffered heart attacks." (Anonymous; "Twins Die," Saginaw News, May 22, 1996. Cr. B. Kingsley via COUD-I .) Reference. For more on the book: ...
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... 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 .3 inches) long. These can be seen coiled up in the tiny fertilized eggs. ...
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... Science Frontiers ONLINE No. 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects High Social Order In A New Order When divers explore the coral reefs off the coast of Belize, they hear a an underwater sound like frying bacon. This sound emanates from the snapping claws of Synalpheus regalis , popularly called snapping shrimp. These diminutive crustaceans live in colonies in the channels of sponges. The individual shrimp in these sponge-sheltered colonies are not all alike. The noise-makers are the "soldier" caste, which wield big "fighting claws." The "workers" that care for the young lack the large claws. All of the young shrimp are produced by a single "queen" shrimp, who is substantially larger than the soldiers and workers. The snapping shrimp social order sounds a lot like that found in bee hives and termite mounds. The snapping shrimp are, in fact, "eusocial" like the social insects. They are the only known eusocial members of the Order Crustacea . Eusociality is considered to be at the apex of animal social organization. What forces have fostered its development in three diverse groups -- insects, mammals (the naked mole-rats), and now the crustaceans? How did the different castes evolve, especially the sterile castes? It must have taken a lot of random mutations to develop such greatly different body forms in a coordinated way such that colonies were continuously viable! Obviously, we have a lot to learn about these snapping shrimp. Are new colonies ...
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... It contains 35 per cent calcium by weight -- 13 per cent more than the highest value known previously. Using microscopes, the team showed that the bone is riddled with tiny tunnels. containing highly concentrated minerals." The channelled nature of this bone make it very brittle, making it unlikely that it is used as a ram in mating bouts. Zioupos and Currey propose that this uniquely structured bone is really an acoustical pipe for the beaked whales' sonar signals. (Barnett, Adrian; "Do Whales Talk through Brittle Beaks?" New Scientist, p. 20, May 10, 1997.) Comment. Acoustical pipes were also invented by close relatives of the beaked whales, the dolphins. With the dolphins, it is the lower jaw that has been converted into a "sound pipe" for receiving sonar echoes. Dugongs, too, possess squamosal bones filled with oil that are probably also connected with sound detection. Evolution has been highly innovative -- three times, in different ways -- in designing acoustical pipes in marine mammals! This is very impressive for a method that begins with a random process. More details in BMO7-X1 in Mammals II . This strap-toothed whale is one of the beaker whales. The teeth of this male prevent it from opening its mouth more than a couple of inches. Blaineville's beaked whale has two large, leaf-like teeth projecting upwards and forwards. These grotesque teeth are often covered with barnacles! From Science Frontiers #113, SEP-OCT 1997 . 1997-2000 William R. Corliss ...
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... 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 overcast, and there was no darkness moving in or evident ...
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... Subjects A SUBMARINE ORGAN?Exactly two years ago, we reported on strange seismic signals detected by German geophysicists near Mount Semeru, in Java. These signals consisted of a fundamental tone and evenly spaced harmonics. Sometimes, the fundamental tone rose and fell. This "natural trombone" was thought to be a gas-filled subterranean cavity capped at the top by rock, with a pool of magma at the bottom. Volcanic vibrations resonated in this chamber. As the magma pool rose and fell, the fundamental tone changed. More recently, a network of seismic stations in French Polynesia has picked up more mysterious seismic signals. These differ from those in Java in that each fundamental tone is "pure"; that is, there are no harmonics. Dubbed "T -waves," the sounds originated from an active volcanic ridge in the South Pacific. Suspicion fell on one flat-topped volcano that rose to within 130 meters of the ocean surface. But, how could this peak generate such a pure tone? The theory is that the active volcano spews out a column of steam bubbles bounded at the bottom by the flat volcano and by the ocean at the top. Computer simulations proved that sound could resonate in a column of bubbles just as it does in an organ pipe. Since the height of the column remains fixed, so does the fundamental tone. Certainly harmonics are generated, too, but the bubbles damp out the higher frequencies, leaving a pure tone. (Schneider, David: "A Blue Note," Sci entific American , 277:18, August ...
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... Science Frontiers ONLINE No. 112: Jul-Aug 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Apparent Circular Lightning May 1, 1997, near Patterson, New Jer sey. Between 3 and 4 PM, D. Quinlan was driving along Route 80. A dark line squall was approaching from the west. Quinlan observed many horizontal strokes of lightning passing from cloud to cloud. These discharges seemed to make little noise -- no loud crashes of thunder, although sounds were somewhat muffled by his vehicle. These strokes moved so slowly that their progress across the sky could be easily tracked visually. Most remarkable were three discharges that began to his right, progressed across the sky in nearly a horizontal plane, and then looped back to near their starting points, thereby completing what appeared to be a circle. (Quinlan, David; private communication, May 2, 1997.) Comment. In our Catalog Lightning, Auroras, section GLL25, we offer three cases of "meandering" lightning in which the discharges follow long, complex, looping paths. However, none of these were circular. Also, in SF#89. there is an instance of "looped" lightning that rises from cloud tops toward the ionosphere and then loops back to the cloud tops. The Catalog volume just cited is described at here . From Science Frontiers #112, JUL-AUG 1997 . 1997-2000 William R. Corliss ...
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... 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 Frog Fall June 16, 1937. Frackville, Pennsylvania. "Astonished householders of this little mining town, ten miles north of Pottsville, went out with brooms and swept bullfrogs off their open porches after a thunderstorm today. "The tiny frogs sounded like the thudding of hailstones as they dropped by hundreds on tin roofs. "Miniature "twisters" accompanying the rain had lifted the frogs several yards into the air, it was suggested, and dropped them over Frackville." (Anonymous; "Bullfrogs by the Hundred Fall in Pennsylvania Rain," New York Times, June 17, 1937. Cr. M. Piechota. Comment. The "whirlwind theory" is always trotted out to account for fish, frog, and toad falls. It is not easy to find hundreds of tiny frogs in a marsh and then vacuum them up without also levitating considerable plant debris and other marsh dwellers. From Science Frontiers #115, JAN-FEB 1998 . 1998-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Two Catastrophe Scenarios We present below two reconstructions of major terrestrial catastrophes. Both are based on sound geological research: deep-sea cores, seismic profiles, and the like; but the reconstructions of the events are on the speculative side, particularly in matters of the magnitudes of the effects. Both events also purport to explain long-standing puzzles. Scenario #1 . The Bosporus silt plug blows. During the last Ice Age, sea levels dropped hundreds of feet exposing the continental shelves. The planet's great rivers cascaded over the edges in great waterfalls. The rocky sill at Gibraltar kept the Atlantic waters out of the Mediterranean, and this sea began to dry up. Farther to the east, the Black Sea was now cut off from the Mediterranean's salty water by the silt-choked Bosporus, that narrow strait separating Asia Minor from Europe. In consequence, the Black Sea became a vast fresh-water lake fed by Europe's rivers to the north. The Ice Age eventually waned, and the oceans and Mediterranean began to rise. About 7,000 years ago, the hydraulic pressure on the Bosporus silt plug became too great and it popped. Salty Mediterranean water poured into lowlands around the Black Sea. Scientists estimate that 50 cubic kilometers of water surged through the Bosporus each -- 200 Niagaras in one colossal waterfall. Falling some 150 meters, the thunder of falling water might have been heard ...
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... Science Frontiers ONLINE No. 118: Jul-Aug 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Day The Laws Of Physics Changed Well, maybe there weren't such things as "days" as we now know them back when the universe was very young. In fact, "time" then might have been different from "time" now. This sounds like so much physics-speak; but, seriously, during the birth pangs of the universe, there seems to have been what cosmologists call a "phase change," a mysterious moment when the laws of physics suddenly became more complex. You can reasonably ask: "How can supposedly immutable physical laws change?" The answer seems to be that anything can happen when something is being made from nothing! This apparent plasticity in the laws governing the cosmos is suggested by observations of how galaxies in the early universe were distributed. The standard theory for the origin of the universe predicts that clumps of galaxies of all sizes were created early on. This is not what a survey by S. Sarkar et al, at the University of Oxford, found. A split second after the Big Bang, galaxies were organized in structures about 300-million light years across. The standard model of particle physics cannot account for this preferred size. The theorists' recourse is a phase change, a point in time when the warp and woof of the universe changed; that is, change the rules until they fit. (Chown, Marcus; "In the ...
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... is a blackish volcanic rock that is hard and durable. In nature it sometimes occurs in long prisms of hexagonal cross section. In fact, ancient Micronesians quarried multiton basalt prisms to build their fantastic megalithic complex of 92 artificial islets at Nan Madol. (SF#45) The inhabitants of ancient Mesopotamia had no basalt quarries at hand. Indeed, building stone of any kind was exceedingly scarce. What the Mesopotamians of the second century B.C . did have in abundance was alluvial silt. From this unpromising material they were able to make their pottery, writing tablets, and art objects. However, for grinding grain and engineering structures they needed something harder and stronger. Their innovative solution was: artificial basalt made from silt. They simply melted the silt and let it cool slowly. Sounds simple, but three remarkable intellectual and technical advances were required: The Mesopotamians first had to recognize that silt could be melted. This could not have been obvious in 1000 BC. Next, they had to develop hightemperature (1 ,200 C) smelters that were much larger than those they used for metallurgical purposes. Finally, they had to discover that slow cooling was needed for the growth of large crystals in the cooling melt. (Of course, they had no microscopes to see the crystals. So, it had to have been something learned from experience.) That the Mesopotamians were able to synthesize basalt can be seen at Mashkanshapir about 80 kilometers south of Baghdad. Slabs of this artificial rock -- flat and smooth on one side from the molds -- are abundant. ...
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... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mapping With A Song The songs of the humpback whale are complex and eerily melodic. Only the male humpbacks sing, and then only during the mating season. In contrast, the songs of blue whales are exceedingly dull. They consist of only five notes repeated in various combinations. Since both sexes sing most of the year, the songs of the blue whale probably have nothing to do with reproduction. Then, why do they sing? A clue to the purpose of the blue whales' songs is found in their precision timing. One note is sung every 128 seconds. Furthermore, these notes (sound pulses) carry for hundreds of kilometers. C. Clark, a Cornell scientist, believes these notes are really sonar pulses used for fixing a whale's location. Echoes returned from distant seamounts, continental shelves, and other undersea topography enable the whales to map their positions within the wide ocean basins as they wander far and wide. (Hecht, Jeff; "Rhythm of Blues Charts the Ocean Depths," New Scientist, p. 19, June 20, 1998.) Comment. Short -range sonar is widely used by bats, Oilbirds, Edible-nest Swifts, and, of course, dolphins. As far as we know, the blue whale is the only animal employing sonar for longrange mapping. However, some birds seem to use distant infrasound sources (ocean surf, wind flowing over mountain ranges ...
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... Science Frontiers ONLINE No. 107: Sep-Oct 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Organ Music Your doctor is understandably concerned if he finds your heartbeat is irregular. But it turns out that the healthy heart does not beat steadily and precisely like a metronome. In fact, the intervals between normal heartbeats vary in a curious fashion: in a simple, direct way, they can be converted to musical notes. When these notes (derived from heartbeat intervals) are heard, the sound is pleasant and intriguing to the ear -- almost music -- and certainly far from being random noise. In fact, a new CD entitled: Heartsongs: Musical Mappings of the Heartbeat , by Z. Davis, records the "music" derived from the digital tape recordings of the heartbeats of 15 people. Recording venue: Harvard Medical School's Beth Israel Hospital! This whole business raises some "interesting" speculations for R.M . May. "We could equally have ended up with boring sameness, or even dissonant jangle. The authors speculate that musical composition may involve, to some degree, 'the recreation by the mind of the body's own naturally complex rhythms and frequencies. Perhaps what the ear and the brain perceive as pleasing or interesting are variations in pitch that resonate with or replicate the body's own complex (fractal) variability and scaling.'" (May, Robert M.; "Now That's What You Call Chamber Music," Nature, 381:659 ...
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... Science Frontiers ONLINE No. 111: May-Jun 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects White Streak From A Tv Set 1975. Walsall, West Midlands, U.K . N. Boynton and his mother were watching TV, when: "In the run up to an approaching daytime thunderstorm when the air was 'heavy', and while watching television, a streak of whitish light approximately four inches (100 mm) thick came from the direction of the television straight into the body of the room at about head height between where my mother and I were sitting. "It lasted for a fraction of a second. There was an accompanying crackling sound, with the television flickering and buzzing for a second or two. There was no evidence of damage to the television or anything else in the room. We were unaware of whether there was a lightning strike outside at the time." The streak passed between Boynton and his mother, seated about 4 feet apart, and seemed directed toward the door of the room. (Boynton, Neil; "White Streak from the Direction of a TV Set Prior to a Thunderstorm," Journal of Meteorology, U.K ., 21:348, 1996. Journal address: 54 Frome Road, Bradford-on-Avon, Wiltshire, ENGLAND BA15 1LD) From Science Frontiers #111, MAY-JUN 1997 . 1997-2000 William R. Corliss ...
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