scientific american - 1998 08 - new thinking about back pain

... PLASMAFOR FUSION ENERGY New Thinking about Back Pain AUGUST 1998 $4.95Copyright 1998 Scientific American, Inc.often waived delays he couldhave required.The divorce from Human Ge-nome Sciences cost ... re-NASA AND SUSAN TEREBEY Extrasolar Research CorporationCopyright 1998 Scientific American, Inc.News and Analysis Scientific American August 1998 23If diabetics don’t eat, they stop tak-ing ... a typical experi-ment, we generate nearly two millionjoules of x-rays in a few nanoseconds,Fusion and the Z-Pinch Scientific American August 1998 43POWER from wire-ar-ray Z-pinches increasedslowly...

scientific american - 1998 07 - new victories against hiv

... ServiceCopyright 1998 Scientific American, Inc.MARS PATHFINDER LOOKS BACK JULY 1998 $4.95SPECIAL REPORT: New Victoriesagainst HIVThe invisible charmsof a winged Don JuanCopyright 1998 Scientific American, ... SygmaCopyright 1998 Scientific American, Inc.News and Analysis24 Scientiﬁc American July 1998 In 1918 Austrian physicists JosephLense and Hans Thirring derivedfrom Einstein’s equations of gener-al ... KENNEDYCopyright 1998 Scientific American, Inc.As any World Wide Web surfer knows, ﬁnding information over the Internet can bepainfully time-consuming. Search en-gines such as Yahoo!, AltaVista and In-foseek...

scientific american - 1995 08 - a new theory of aids latency

... Òinductivist,ameliorative, progressive, add-a-fact-at-a-time-donÕt-theorize-till-youÕre-old mod-el of doing science.ÓWhen I ask Gould if he believes, asKuhn does, that science does not ad-vance toward truth, ... bringing in groups such as the Amer-MICHAEL CRAWFORDCopyright 1995 Scientific American, Inc.28 SCIENTIFIC AMERICAN August 1995ican Legion late in the plan-ning, the Smithsonian lostmany ... goes for about $2,000, in com-parison. ÒThe drives will probably cost about $200 more than a standard CD-ROM drive at Þrst,Ó he says. Speed isequally improved. ÒConventional opti-cal-recording...

scientific american - 1993 08 - can particles move faster than light

... be new things happening, new information com-ing in, new worlds to explore, a constant-ly expanding domain of life, conscious-ness and memory,Ó Dyson proclaimed.Dyson is Òopen-mindedÓ about ... war-heads contain about 50 tons of pluto-nium and up to 400 tons of HEU. Sur-plus Soviet warheads, including about 10,000 that have already been disman-tled, contain about 100 tons of pluto-46 ... fractionof mixed-oxide fuel that can be substi-tuted for low-enriched uranium in mostlight-water reactors to about one thirdof the core. Consequently, a 1,000-mega-watt electric light-water reactor...

scientific american - 1994 08 - red tides - a growing hazaed

... extreme ultraviolet obser-vatory still sending streams of new re-sults back to the earth. SCIENTIFIC AMERICAN August 1994 39DEEP-SURVEY TELESCOPE and spectrometers are being pre-pared for integration ... sci-entists that he had made in the Solo-mon Islands, Mayr landed a job in New York City in 1932 as a curator of thebird collection at the American Muse-um of Natural History. He began pub-lishing ... toengage Soviet nuclear-powered subma-rines in a global game of hide-and-seek.As that threat has faded, conßicting pri-orities have emerged. On one hand, theU.S. Navy is concerned about the threatthat...

scientific american - 1996 08 - the electronic wallet

... available; to order, write Re-print Department, Scientiﬁc American, 415Madison Avenue, New York, NY 1001 7- 1111, or fax inquiries to (212) 35 5-0 408. E-mail: info@sciam.com Back issues: $8.95 each ... cellular-phones-cum-com-puters. Maybe truly networked comput-ers aren’t that far off after all—even ifthey’re not the ones now grabbing theheadlines.—John Browning in LondonNews and Analysis Scientific ... against this ecosystem-altering invader.GARY MESLAROS Bruce Coleman, Inc.UPI/CORBIS-BETTMANNCopyright 1996 Scientific American, Inc.News and Analysis Scientific American August 1996 23basin....

scientific american - 1997 08 - age and energy

... of shootingNews and Analysis Scientific American August 1997 19The Claim in SpainPaleobiologists from the National Mu-seum of Natural Sciences in Madrid re-port that 800,000-year-old fossils ... Earth ScenesCopyright 1997 Scientific American, Inc.News and Analysis22 Scientific American August 1997Hey, maybe we can go to aMets game,” intones my10-year-old son, Benjamin,when he ... (212)35 5-0 408. Index of articles since 1948 available inelectronic format. Write SciDex, Scientiﬁc American, 415 Madison Avenue, New York,NY 1001 7-1 111, fax (212) 98 0-8 175 orcall (800) 77 7-0 444.Scientiﬁc...

scientific american - 1998 01 - flying over the solar system

... of the same species.Copyright 1997 Scientific American, Inc.News and Analysis34 Scientific American January 1998 New MoonsAstronomers first sighted two new moons—temporarily named S1997 U1and ... ParisNews and Analysis40 Scientific American January 1998 A NAKED MAN: Lévi-Strauss amongthe Nambikwara of Brazil in 1938.COURTESY OF CLAUDE LÉVI-STRAUSS Copyright 1997 Scientific American, ... (hisNews and Analysis38 Scientific American January 1998 PROFILEIN HIS ELEMENT, Claude Lévi-Strauss ponders “the savage mind.”RAPHAEL GAILLARDE Gamma Liaison NetworkFrom Naked Men to a New- World...

scientific american - 1998 02 - wrapping up the universe

... ADMINISTRATIONCopyright 1998 Scientific American, Inc.News and Analysis24 Scientific American February 1998 Blowing across the lip of a bottleto produce that satisfying humwould not seem to be the basisfor new ... PhotoCopyright 1998 Scientific American, Inc.While at Los Alamos National Labo-ratory in 1990, Lucas studied how shockwaves could be broken down into high-er-frequency components, or harmon-ics. ... practical in high-perfor-mance microprocessors. Like CMP,electroplating also has pre-20th-centuryantecedents. It serves as another in-stance in which retro-tech now contrib-utes to advances...

scientific american - 1998 03 - inside a virtual human

... OF C. CARILLIIAN WORPOLECopyright 1998 Scientific American, Inc.News and Analysis26 Scientific American March 1998 Moore says he and his colleagues dem-onstrate this with liposomes suspendedin ... issue of Social Text (1996).32 Scientific American March 1998 Copyright 1998 Scientific American, Inc.Last July, Edward W. Campion, a deputy editor at the New Eng-land Journal of Medicine, madea ... dossier of de-lectable quotes, around which he craft-ed the hoax. “It took me a lot of writ-ing and rewriting and rewriting beforeNews and Analysis30 Scientific American March 1998 PROFILEUndressing...

Xem thêm