361 results found.
... 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 More Nominative Determinism Following in the trail of Feedback's page in the New Scientist, we herewith offer two more cases of nominative determinism or ND. This phenomenon, as readers of SF are well aware, occurs when a person's last name is related to his or her occupation. A solid example of ND is seen in the name of the Director of U.S . Programs for the Rodale Institute. The Institute, it turns out, is studying carbon and nitrogen balances in organically managed cropping systems. Nitrates originating in such agriculture contaminate the ground water and often end up in drinking water. The EPA has determined that nitrates in drinking water can be harmful; thus this study. Who directs the study? Dr. Laurie Drinkwater! (Anonymous; "Organics Reduce Groundwater Pollution," Acres U.S .A . , p. 11, May 1999. Cr. L. Cortner.) And to whom does the journal Marine Observer turn when expert opinion is required on marine phenomena, including fish identification? Dr. Peter Herring! From Science Frontiers #125, SEP-OCT 1999 . 1999-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 122: Mar-Apr 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Are We Running On Martian Time?It is really very curious. In the absence of all external time cues, the human body slowly shifts its internal clock from earth time (24-hour days) to Martian time (24.9 -hour days). Could we all have been Martians in the deep, distant past? This thought was triggered by the recent surmises that earth life might have originated on Mars and been brought here by an immigrant meteorite. (Packard, Gabriel; "Martian Day," New Scientist, p. 54, October 10, 1998.) From Science Frontiers #122, MAR-APR 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 Sophisticated Chemistry In Ancient Egypt The ancient Egyptians applied cosmetics copiously to themselves. Upper-class women (perhaps men, too) favored green, white, and black makeup. These cosmetic powders, dating from 2,000 B.C ., have been exceptionally well preserved in their original vials made of alabaster, ceramic, and wood. A team of French chemists led by P. Walter was not surprised when their analyses of these powders found crushed galena and cerussite (two ores of lead). However, they nearly dropped their test tubes when they also found chemical compounds that are extremely rare in nature; specifically, laurionite (PbOHCl) and phosgenite (Pb2 Cl2 CO3 ). In fact, these compounds are so rare naturally that the Egyptian powders must be artificial. P. Walter et al wrote: "Taken together, these results indicate that laurionite and phosgenite must have been synthesized in Ancient Egypt using wet chemistry. The Egyptians manufactured artificial leadbased compounds, and added them to the cosmetic product. The underlying chemical reactions are simple, but the whole process, including many repetitive operations, must have been quite difficult to achieve." It had been recognized earlier that the Egyptian chemists had used fire-based technology 500 years earlier (2 ,500 B.C .) to manufacture blue pigment. Wet chemistry represented another forward technological step. (Walter, P., et al; "Making Make- ...
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... ONLINE No. 122: Mar-Apr 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is a singularity worse than a spinning cosmos?Whence the untold billions of stars and galaxies that brighten our night skies? From a "singularity," that's where -- from an infinitely small point in space. The Big Bang hypothesis requires this abandonment of common sense. Both mathematicians and cosmologists instinctively hate singularities. The latter have been trying to exorcise theirs for years. Recently, S. Carneiro, a Brazilian physicist, proposed a way to get rid of this natal singularity but retain the expanding universe. First, he assumes that the universe has been around for an indefinitely (infinitely?) long time, thereby eliminating the problem of origin. Furthermore, this universe was rotating. About 11 billion years ago this spinning universe was transformed into the expanding universe we see today via that clever cosmologists' ploy called a "vacuum phase transition." Carneiro shows how the rotation of the universe-as-a -whole was converted into overall expansion in a paper submitted to the journal Classical and Quantum Gravity . But even if all of Carneiro's equations check out, angular momentum still had to be conserved somehow during the phase transition. Simple! The angular momentum of the universe-as-a -whole was transferred to the spins of all the individual planets, stars, and galaxies. In fact, the angular momentum of each astronomical entity, according to Carneiro, is proportional to its (mass)1 . ...
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... adventurous inhabitants of the Iberian Peninsula made Atlantic crossings in skin boats. With the help of the favorable currents and benign weather, they could have made the crossing in about three weeks. Diehard champions of the Bering Land Bridge ridicule such early trans-Atlantic crossings. Yet, South Pacific islanders had been making long ocean voyages for some 20,000 years before the Solutreans set sail. No one denies that some immigrants to the Americas used the Bering Land Bridge; it is just that they were latecomers. Archeological sites in Pennsylvania, Virginia, and South Carolina (SF#125) dating back 15,000-18,000 years demonstrate that the ocean-going Solutreans had footholds in the Americas 3,0006,000 years before Asian landlubbers trekked into Alaska. (Anonymous; "Origins of Prehistoric North Americans in Dispute," Baltimore Sun, November 1, 1999. Verrengia, Joseph B.; "Are You a Clovis or a Solutrean?" Associated Press, Fox Newswire, October 31, 1999. Cr. M. Colpitts.) From Science Frontiers #127, JAN-FEB 2000 . 1997 William R. Corliss ...
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... coax neighboring, normal tissue to do their bidding. What cancer cells need most, if they are to grow, is sustenance, as normally provided by blood vessels. Obligingly, even though it could lead to their own demise, the tissues surrounding the cancer will grow new blood vessels to supply the killer in their midst. It has now been discovered that some particularly aggressive cancers, some melanomas, for example, can grow without the help of nearby subverted tissue. They can manufacture their own blood vessels which carry nourishment to malignant cells deep in the cancers. These self-made blood vessels differ from normal vessels in their lack of endothelial cells. They are also organized in distinctive patterns of loops around clusters of cancer cells. Normal blood vessels tend to be arranged more randomly Although they originate in specialized tissues, such as the prostate gland, the cells in aggressive cancers become unspecialized. In a sense, they revert to embryonic cells that can then become any kind of cell, such as those in blood vessels. Cancer cells are atavistic -- throwbacks to the womb. (Barinaga, Marcia; "New Type of Blood Vessel Found in Tumors," Science, 285: 1475, 1999. Spinney, Laura; "Organized Killers," New Scientist, p. 11, September 11, 1999.) Comment. It's all very insidious -- like some alien entity from the pages of science fiction with its own agenda that aims to take over one's body. But the infected body dies before the transformation is complete. One has to wonder ...
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... LDG is concentrated in two areas. One is oval-shaped; the other is a circular ring 6 kilometers wide and 21 kilometers in diameter. The ring's wide center is devoid of LDG. Could there have been a "soft" projectile impact; that is the detonation of a meteorite, perhaps 30 meters in diameter, 10 kilometers or so above the Great Sand Sea? The searing blast of hot air might have melted the sand beneath. Such a craterless impact is thought to have occurred in the 1908 Tunguska Event in Siberia. Another theory has a meteorite glancing off the desert surface leaving a glassy crust and a shallow crater that was soon filled in. But there are two known areas of LDG. Were there two cosmic projectiles in tandem? As of 1999, the origin of the beautiful green LDG remains an enigma. And of course deserts are dynamic places. How much additional LDG lurks beneath all that blowing sand? (Wright, Giles; "The Riddle of the Sands," New Scientist, p. 42, July 10, 1999.) Comment. In Tasmania, near Mount Darwin, is strewn the so-called Darwin Glass, which may be a distant relative of the LDG. Darwin Glass, however, exists in much smaller pieces and is strewn in a splatter pattern. A potential crater is nearby. For details on these natural glasses, see ESM2 in Neglected Geological Anomalies and SF#64. Libyan Desert Glass (LDG) is strewn over the shaded area. From Science Frontiers #126, NOV-DEC 1999 . 1999 ...
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... 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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... Project Sourcebook Subjects Pre-Columbiana Pre-Columbiana is the title of a new journal focussing upon evidence for preColumbian contacts between the Old and New Worlds. Except for the Norse settlement at L'Anse aux Meadows, Newfoundland, such early visitations are denied by mainstream archeology. Yet, there are hints everywhere that both the Atlantic and Pacific were crossed frequently before Columbus set sail. One class of pre-Columbiana consists of linguistic, artistic, literary, and fossil evidence that distinctive New World plants were known in the Orient well before 1492. C.L . Johannessen, a geographer at the University of Oregon, demonstrates in a long article that both India and China knew and exploited a surprisingly wide range of American plants. For example, many carvings in Indian temples depict maize, which originated in the New World. A similar situation prevails for the sunflower and a many-seeded New World fruit called "annonas." Sunflowers and maize are also prodigious seed producers, suggesting that these three plants were valued as fertility symbols and may not have been consumed as food. The pre-Columbian Pacific was a twoway conduit for plants and even a few animals. For example, the Old World contributed black-boned chickens, cotton, and coconuts to the New World. As for China, Johannessen has gathered evidence for early Chinadestined Pacific crossings of maize, sunflowers, a squash, chili peppers, sweet potatoes, the yambean, and grain amaranths. Most startling, though, has been the discovery of New World peanuts at two Neolithic sites in eastern China. The associated dates ...
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... a poor choice of words. The period of these vibrations ranges from 3 to 8 minutes, which puts them in the range of infrasound. Recently, N. Suda of Nagoya University has found a clue suggesting that thunderstorms may excite these very-lowfrequency vibrations. Suda and his colleagues analyzed the seismic records at four seismically quiet locations around the globe and discovered that the hum is loudest between noon and 8 PM local time. The quietest period is from midnight to 6 AM. These are the same time frames when thunderstorms are most active and quiet. It's circumstantial evidence, but it makes sense. (Kerr, Richard A.; "Earth Seems to Hum along with the Wind," Science, 283:321, 1999.) Comment. Infrasound in the atmosphere may originate from storms thousands of miles away and from strong winds blowing across mountain crests. It appears that the earth is an immense, spherical aeolian harp! From Science Frontiers #122, MAR-APR 1999 . 1999-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunguska: An Inside Job?Virtually all speculation about the 1908 Tunguska Event assumes an external cause: a meteor, a comet, an asteroid, or even the accidental explosion of an alien spaceship. A recent meeting of Tunguska experts in Russia looked down rather than up for Tunguska's initiating phenomenon. In this open-minded review, two little-publicized but highly pertinent Tunguska observations were discussed. The catastrophe had five centers of destruction rather than one. At the Tunguska site are many large root stumps, not yet rotted away, that cannot be linked to any pits associated with their origin. These stumps were apparently blown out of the ground and hurled dozens of meters from where they stood prior to the Event. Next to be considered were the unappreciated similarities between the Tunguska Event and the 1883 explosion of Krakatoa. The four bright nights in Europe and western Asia, straddling 30 June 1908, are remimiscent of the 1883 Krakatoa outburst, they ask for transient scatterers in the upper atmosphere, above 500 km, at heights which only methane and hydrogen are light enough to reach in sufficient quantity. Fast-rising natural gas has been repeatedly detected in recent years, in the form of "mystery clouds"---by airplane pilots---and indirectly as pockmarks on 6% of the sea floor. In other words, Tunguska might well have been---not an extraterrestrial impact--- ...
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