64 results found.
... This Issue Sourcebook Project Sourcebook Subjects Carnot Creatures Photosynthesis is the ultimate source of energy for most of the life forms we recognize here on earth. Sure, there are also a few creatures that derive their energy by oxidizing the sulfides dissolved in the 400 water gushing forth from deep-sea vents. We will call them "geochemical creatures" to separate them from the "photosynthetic creatures" we are more familiar with. But, in principle at least, there could also be "Carnot creatures", whose metabolisms depend upon temperature differences like almost all human-built engines. Some bizarre animal, such as a meter-long tube worm, could plant one end on a hot rock surface and dangle the other in cold seawater to reject waste heat from its Carnot engine. Since thermodynamic-cycle efficiencies can approach 60% compared with only 10% for photosynthesis, evolution would have been remiss if it had not tried to evolve "Carnot creatures." For, as D. Jones comments below, Carnot creatures would be adaptable to many more habitats in the universe than photosynthetic creatures, which must have a sun with a very specific electromagnetic spectrum. "Many worlds, from distant 'brown dwarf' stars to the satellites of giant planets, may have internal heating but no effective 'Sun'. If Carnot life is possible, it may well have evolved in such dark and distant places -- making life abundant throughout the Universe. Indeed, our distant descendants may be able to harness Carnot biochemistry to sustain themselves on geothermal or residual browndwarf warmth when the Sun finally grows dim ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf111/sf111p08.htm
... -century ago, Yale biologist H.S . Burr inserted electrodes into trees and found that the voltages between them varied with the phase of the moon. (Ref. 1) The influence of the moon upon trees is even more palpable: the diameters of tree stems also bloat and shrink with the position of the moon in the sky. There is a tide in the affairs of trees, it seems. If tides occur twice a day, so do the swellings and shrinkings of trees. These tidal patterns are evident even when the trees are kept in darkness and at constant pressure and humidity. Even more surprising, chunks of tree stems that are sealed to prevent water from flowing in or out will still expand and contract according to the 24-hour, 49-minute lunar cycle as long as the cambium, the most active growing region, survives. The dimensional changes are small -- only tenths of a millimeter, but even these seem too large, given the weakness of the moon's gravitational field here on earth. (Ref. 2 and 3) References 1. Burr, H.S .; "Moon Madness," Yale Journal of Biology and Medicine, 19:249, 1944. 2. Zurcher, Ernst, and Cantiana, MariaGiulia; "Tree Stem Diameters Fluctuate with Tide," Nature, 392:665, 1998.) 3. Milius, S.; "Tree Trunks Swell in Synchrony with Tides," Science News, 153:245, 1998.) (Top) Tree-stem diameter. Ordinate scale ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf118/sf118p07.htm
... Science Frontiers ONLINE No. 110: Mar-Apr 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A NAZCA ZODIAC?Although the famous Nazca lines and figures etched into Peru's Atacama Desert are assuredly not part of an extraterrestrial landing field, they still may have a stellar connection of sorts. P.B . Pitluga, of Chicago's Adler Planetarium, proposes that some of the figures may be part of a Zodiac; that is, a terrestrial representation of the constellations. Here follows an abstract of her paper presented before a meeting of the Society for Scientific Exploration . "New field measurements and computer analysis link the gigantic ground drawings to the Andean tradition of dividing up space and time by cycles of the Milky Way. By including ethnoastronomy in the analysis, these conclusions differ from [those of] previous researchers. The first hypothesis tested was that the figures could be considered like labels to the lines. Of the twenty-seven figures, ten are birds, three are whales, and two are seaweed plants. Theodolite measurements revealed a non-random distribution of the directions of lines attached to look-alike figures. The second test showed a physical relationship of present-day Andean plant and animal figures imagined as silhouettes in dark spots along the Milky Way to figure-lines pointing to the rising and/or setting of the same Andean figure 2000 years ago. In the third test, all other lines extending to the desert horizon from a figure center keyed into dark spots and bright stars along the Milky ...
Terms matched: 1 - Score: 13 - 15 May 2017 - URL: /sf110/sf110p01.htm
... 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 Two really deep oceans During our latest anomaly-collecting cycle, we came across two reports on apparently identical phenomena. Neither article mentioned the work of the other! Both groups of scientists processed massive quantities of earthquake records to form "seismic images" of structures deep in the bowels of the earth. (The technique is called "seismic tomography.") Both groups have discerned huge slabs of crust that were once on the planet's surface but were subsequently thrust (" subducted") down under the continents. These slabs are now hundreds of kilometers below the surface, and they have dragged water along with them. In fact, their water inventories may rival today's surface oceans; they may even have been surface oceans themselves millions of years ago before they descended into the infernal regions. Only a few years ago, all geologists maintained that all water in subducted slabs was squeezed out of the rocks by immense pressure and later reappeared at the surface as volcanic steam. Deep ocean #1 . G. Nolet and A. Zielhuis, Princeton seismologists, report a huge reservoir of water about 900 kilometers under present-day Europe. Some 400-500 million years ago, there was an ocean in this locale. (Zimmer, Carl; "The Ocean Within," Discover, 15:20, October 1994.) Deep ocean #2 . H. Wysession, Washington University, has located a water ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf096/sf096g11.htm
... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects 90-DAY SEA-LEVEL OSCILLATION AT WAKE ISLAND Most North Americans are familiar with rather powerful diurnal tides. The oceans, however, also move in ponderous cycles that beachcombers can never appreciate. Thanks to data from Geosat's precision altimeter, geophysicists can now discern some of these long-period moving patterns on the oceans' surfaces. "Energetic 90-day oscillations of sea levels have been intermittently observed at Wake Island in the western tropical Pacific during the past 2 decades. The oscillations tend to occur about 1.5 years after El NinoSouthern Oscillation events, to have amplitudes of 10-15 cm, and to persist for about 1 year. Sea-surface heights from the Geosat altimeter are used to establish that these signals take the form of Rossby waves and have an energy source near the Big Island of Hawaii, which lies 40 of longitude to the east. Sea-level and upper-layer currents from an eddy-resolving numerical model are examined and suggest that the energy source is eddies generated off the Big Island of Hawaii. These eddies appear to be associated with westward currents that intermittently impinge on the island." (Mitchum, Gary T.; "The Source of 90-Day Oscillations at Wake Island," Journal of Geophysical Research, 100:2459, 1995.) Comment. Such eddies would have to persist for long periods to survive the long trip to Wake Island some 2500 miles ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf099/sf099g12.htm
... each day at 51,200 locations around the world. These near-surface temperatures revealed a difference of 0.2 C between full and new moons -- ten times larger than that from the satellite study. (Ref. 2) 0.2 C and even 0.02 C are much too large to be attributed to direct lunar "heating." Instead, geophysicists wonder if the moon's orbit modulates the influx of meteoric dust which may affect solar heating of the earth by absorption. References Ref. 1. Balling, Robert C., Jr., and Cerveny, Randall S.; "Influence of Lunar Phase on Daily Global Temperatures," Science, 267:1481, 1995. Ref. 2. Gribbin, John; "A Mysterious Monthly Temperature Cycle," New Scientist, p. 18, January 28, 1995. From Science Frontiers #100, JUL-AUG 1995 . 1995-2000 William R. Corliss ...
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... are periodic, with an average period of 26 min. Single, isolated workers do not show the pattern of periodic changes in activity level. Single workers become active spontaneously, but at no particular interval. Pairs of workers, confined together, also do not show periodicity in activity level. One worker can stimulate another worker to become active, thus coupling their movement-activity patterns. As ants are placed in larger groups, the variation in the interval between activity peaks declines in a manner predicted by coupled oscillator theory. It is argued that the colony can be regarded as a population of 'excitable subunits.," Activity records from two ant colonies. Time (horizontal axis) is measured in 30-second intervals. (Cole, Blaine J.; "Short-Term Activity Cycles in Ants: Generation of Periodicity by Worker Interaction," American Naturalist, 137:244, 1991.) Comment. The author also pointed out the "formal" or mathematical similarity of the ant movement-activity levels and the dynamics of epidemics! This makes us wonder whether wars, economic cy-cles, etc. might be explained by considering humans as "excitable subunits." From Science Frontiers #76, JUL-AUG 1991 . 1991-2000 William R. Corliss ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf076/sf076b06.htm
... 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? ...
Terms matched: 1 - Score: 15 - 15 May 2017 - URL: /sf052/index.htm
... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Phoenix vs. The Hohokam Astronomy Mercury's Orbit Explained Without Relativity The Sun As A Scientific Instrument What Causes the Sunspot Cycle? There Are Cold Anomalies "out There" An Orphan Superluminal Glob? Biology Cancer Even More Insidious Hearing Via Acoustic Holograms Ri Seen The Hypothesis of Formative Causation Lives! Geology The Rise of Astronomical Catastrophism Wanted: Disasters with A 26-million-year Period Thin-skinned Tectonics Early Life and Magnetism Geophysics The Min Min Light Are Nocturnal Lights Earthquake Lights? Three Anomalies in One Storm Mystery Spirals in Cereal Fields Unidentified Phenomena Psychology The Kaleidoscopic Brain At Last: Someone Who Can Predict the Future! Unclassified Reciprocal System Avoids Taint of Reductionism ...
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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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... sources. Therefore, some scientists, such as D. Deming, University of Oklahoma, have been looking spaceward. Deming ventures that extraterrestrial sources of water and carbon may be four or five orders of magnitude greater than suspected. Obviously, a steady bombardment of icy comets might fulfill Deming's requirements. Down the long eons of geological time, they could have filled the oceans and showered all that excess carbon onto the planet's surface. Deming ups the stakes in the icy-comet controversy when he links these fluffy snowballs to the well-known vagaries of life on earth. "The extraterrestrial influx rate may also act as the pacemaker of terrestrial evolution, at times leading to mass extinctions through climatic shifts induced by changes in accretion rates with concommitant disruptions of the carbon and nitrogen cycles. Life on earth may be balanced precariously between cosmic processes which deliver an intermittent stream of life-sustaining volatiles from the outer solar system or beyond, and biological and tectonic processes which remove these same volatiles from the atmosphere by sequestering water and carbon in the crust and mantle." (Deming, David; "On the Possible Influence of Extraterrestrial Volatiles on Earth's Climate and the Origin of the Oceans," Palaeo , 146:33, 1999. Cr. P. Huyghe) Comment. Need we mention the book Living Comets , by F. Hoyle and C. Wickramasinghe? Why stop at water and carbon? From Science Frontiers #126, NOV-DEC 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1 - Score: 14 - 15 May 2017 - URL: /sf126/sf126p08.htm
... Fertility Correlated with Finger Length Anomalous Sound Production The Devil's Spot and Witch Pricking BHB ANOMALOUS HUMAN BEHAVIOR BHB1 Apparently Irrational Human Behavior BHB2 Similarities in the Behaviors of Identical Twins Reared Apart BHB3 Correlation of Disturbed Human Behavior and Solar Activity BHB4 Correlation of Disturbed Human Behavior and Lunar Phase BHB5 Correlations of Disturbed Human Behavior, Stormy Weather, and Infrasound BHB6 Correlation of Human Behavior and Climate and/or Season of the Year BHB7 Unusual Behavior Induced by Rhythmic Stimuli [BHH8, PBH] BHB8 Cyclicity of Violent Collective Behavior BHB9 A Relationship between Number of Wars and Number Killed BHB10 Correlation of Economic Activity with Solar Activity BHB11 Correlation of Economic Activity with the Lunar Tidal Forces BHB12 Correlation of Economic Activity with Solar-System Configurations BHB13 Periodicities in Various Economic Parameters BHB14 Human Culture: An Enigma of Evolution BHB15 Cycles of Religiousness BHB16 "Flock Behavior" in Human Groups BHB17 The Evolution and Persistence of Altruism BHB18 The Evolution and Persistence of Homosexuality BHB19 Unusual Human Sexual Activity BHB20 The Puzzle of Human Handedness BHB21 Handedness and Longevity BHB22 Handedness and Health BHB23 Handedness and Mathematical and Verbal Abilities BHB24 The Uniqueness of Bipedalism BHB25 Human Asymmetry in Locomotion BHB26 Wolf-Children BHB27 Eminence Correlated with Time of Birth BHB28 General Eminence Correlated with Planetary Position BHB29 Eminence in Sports Champions Correlated with the Position of Mars; the "Mars Effect" BHB30 Cultural Creativity Correlated with Solar Activity BHB31 Cultural Flowering Correlated with Climate BHB32 Eminence and Order of Birth BHB33 Periodicity in the Population of Living Eminent People BHB34 Eminence Correlated with Longevity BHB35 Intelligence Correlated with Season of Birth BHB36 Intelligence Correlated with Birth Order BHB37 Intelligence Correlated with Myopia BHB38 A Relationship ...
Terms matched: 1 - Score: 71 - 15 May 2017 - URL: /cat-biol.htm
... Honeycomb Appearance of Flowing Water Remarkable Convection Patterns in Ponds Long Lines of Microorganisms on the Ocean Surface Massive Foam Accumulations Storm Footprints on the Ocean as Seen from Orbit Remarkable Falling and Rising Lake Levels Parting of the Red Sea Reversal of Niagra Falls and Related Phenomena GHG GEYSERS, PERIODIC WELLS, BLOWING CAVES GHG1 Geysers at Sea GHG2 Geysers and Blowing Wells Correlated with Weather Phenomena GHG3 Geysers and Intermittent Wells Correlated with Tidal Forces GHG4 Cold-Water Geysers and Periodic Springs and Wells [GHQ6] Hydrothermal Earthquake Precursors Hydrothermal Explosions Effect of Earthquakes upon Geyser Activity GHS THE BEWILDERING VARIETY OF TIDES GHS1 Sun-Dominated Tides GHS2 Sea and Lake Seiches... GHS3 Spectacular Tidal Bores GHS4 Diurnal, Triple, and Quadruple Tides GHS5 Long-Period Tides of Unexpected Strengths GHS6 Tides That Precede the Moon Extraordinary Tsunamis Tsunami Cycles GHT OCEAN TURBULENCE AND CIRCULATION PHENOMENA GHT1 Extraordinary Deep Circulation Events GHT2 Sonar-Detected Subsurface Oceanic Structures GHT3 Nonvolcanic Underwater Eruptions GHT4 Anomalous El Ninos GHT5 The Guinea Tide GHT6 Energy Transfer to Hurricanes GHT7 Oceanic Rings and Eddies GHT8 Large-Scale Oceanic Chemical Anomalies Deep-Sea Storms Curious Drifts Gas-Hydrate Blowouts Great Whirlpools and Vortices The Gibraltar Dam Oceanic Megaplumes Gulf-Stream Reversal Oceanic Dead Zones Organized Structures in Bubble Clouds North Atlantic Oscillations El Ninos Correlated with Seismicity GHW REMARKABLE WAVE PHENOMENA GHW1 Unexplained Solitary Waves GHW2 Periodic Bands of Waves GHW3 Sudden, Unexpected Onset of High Surf GHW4 Downstream Progressive Waves in Rivers Increasing Heights of North Atlantic Waves GI INCENDIARY PHENOMENA GIC CYCLIC FIRES Forest-Fire Cycles GIS SUPPOSED SPONTANEOUS COMBUSTION Unexplained Fires GIW REMARKABLE FIRE STORMS The Peshtigo Horror GL LUMINOUS PHENOMENA GLA AURORA-LIKE ...
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... WITH ASTEROIDS AAB1 Anomalous Asteroid Orbits AAB2 Asteroid Distribution Anomalies AAB3 The High "Internal Energy" of the Asteroid Population AAB4 Peculiar Distribution of Asteroid Spin Rates AAB5 Unexplained Residual Precession of Icarus AAB6 Evidence against an Explosive Origin for Asteroids AB SOLAR SYSTEM "LAWS" AND INTERRELATIONSHIPS ABB DYNAMICS OF THE SOLAR SYSTEM AS-A -WHOLE ABB1 Solar-System Instability ABB2 Circularity of Planetary Orbits ABB3 Anomalous Split of Angular Momentum between Sun and Planets ABB4 Ubiquity of Resonances in the Solar System ABS REMARKABLE RELATIONSHIPS AMONG PLANETARY AND SATELLITE PARAMETERS ABS1 Solar System Laws of Distance ABS2 Similarity of Densities of Composite Terrestrial Planets ABS3 Multiple Primaries in the Solar System ABS4 Supposed Quantization of Planetary Orbital Periods ABS5 Solar System Mass Laws ABS6 The Quantized Nature of Orbital Systems AC COMETS ACB ORBITAL ANOMALIES OF COMETS ACB1 The Appearance of Comets in Cycles ACB2 Nonrandom Direction-of-Approach of Comets to the Sun ACB3 New Comets Have Almost Critical Velocity ACB4 Sun-Grazing Comets: The Kreutz Group ACB5 Changing Cometary Periods ACB6 Jupiter's Family of Comets ACB7 Low-Eccentricity Cometary Orbits ACB8 The Scarcity of Hyperbolic Orbits ACB9 Cometary Groups ACB10 Orbits of New Comets Diverge from Common Point ACB11 Excess of Retrograde Long Period Comets ACB12 Uranus-Neptune Region Favored as Comet Source ACB13 Cometary Perturbations Suggestive of Planet X ACB14 Rapid Attrition of the Oort Cloud by Molecular Clouds ACB15 Dynamical Improbability of the Oort Cloud ACO OBSERVATIONAL ANOMALIES OF COMETS ACO1 Two-Dimensional Comet Tails ACO2 Cometary Activity Far from Solar Influence ACO3 Comets without Nuclei ACO4 Absence of Meteorites from Comet-Related Showers ACO5 Contraction of Cometary Comas as the Sun is Approached ACO6 Unexplained Abundance of Short ...
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