scientific american - 1995 02 - bubbles turn sound into light

... CRAWFORD Copyright 1995 Scientific American, Inc. FEBRUARY 1995 $3.95 Building strong muscles is only one of the uses tried for anabolic steroids. Bubbles turn sound into light. Debunking The ... Mac- quarie, the koala has deÞnitely had its placid existence disrupted. ÑGary Stix SCIENTIFIC AMERICAN February 1995 15 Copyright 1995 Scientific American, Inc. W hen And...

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... SciDex™, SCI- ENTIFIC AMERICAN, 415 Madison Ave- nue, New York, N.Y. 1001 7-1 111, or fax (212) 35 5-0 408. Photocopying rights are hereby grant- ed by Scientific American, Inc., to li- braries and ... MyhrvoldÕs weekly t•te-ˆ-t•te strategy ses- sion with Microsoft chairman William H. Gates. And Myhrvold, the companyÕs 33-year-old vice president for advanced tech- nology and business...

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... with the newest aircraft types: the F-117 Stealth Þght- ers, F-15s and F-16sÑAmericaÕs top-of- the-line ÞghtersÑand the sturdy A-10 ground-attack airplane. Marine and navy aviation units will ... in Central Europe oÝer a guide to appro- priate American tank strength. Ger- many deploys almost 4,000 top-of-the- line tanks, which are as good or better than the Þnest American tanks. France an...

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... Research Center Copyright 1994 Scientific American, Inc. SCIENTIFIC AMERICAN January 1995 27 istry, Aerosols and Dynamics Expedi- tion Project sent nine ßights into the midlatitude stratosphere ... courtesy of Cadence Books Copyright 1994 Scientific American, Inc. 32 SCIENTIFIC AMERICAN January 1995 W atchdog groups and conspira- cy nuts alike wondered wheth- er the Big T...

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... long as society has a preju- dice against obesity.Ó ÑW. Wayt Gibbs SCIENTIFIC AMERICAN March 1995 35 Copyright 1995 Scientific American, Inc. SCIENTIFIC AMERICAN March 1995 37 F or the past 30 ... CRAWFORD Copyright 1995 Scientific American, Inc. G etting rid of the long-lived, ra- dioactive by-products of nucle- ar power is a problem that has stalked the industry for it...

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... AERONAUTICS AND SPACE ADMINISTRATION Copyright 1995 Scientific American, Inc. 24 SCIENTIFIC AMERICAN April 1995 T he more than one million alco- holics in this country who seek treatment every ... ÑSasha Nemecek 26 SCIENTIFIC AMERICAN April 1995 U ntil recently, many medical in- vestigators believed the AIDS vi- rus remains more or less dor- mant in asymptomatic persons, step...

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... Publications, 1994 Copyright 1995 Scientific American, Inc.Copyright 1995 Scientific American, Inc. ing the strengths, or weights, of the links. Many researchers use these net- works to model brain ... of in- dustrial policy and other government interventions. The ministry ponied up 26 SCIENTIFIC AMERICAN May 1995 THE ANALYTICAL ECONOMIST Miracles for Export Copyright 1995...

Ngày tải lên: 12/05/2014, 15:01

... (right). MARK GEORGE NIMH Copyright 1995 Scientific American, Inc. 26 SCIENTIFIC AMERICAN June 1995 groups looked very diÝerent.Ó Both sex- es had equally activated the left pre- frontal cortex, but the ... store bookkeeper in Þve-and-dime stores. The bookkeeper would receive the money and send back the change. Tubes re- placed Òcash children,Ó 1 0-, 1 1- and 1 2- year-old...

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... to do, how- ever, is to translate data-on-a-screen into the understanding-in-a-head need- ed to make a decision. Ultimately the economics of understanding will shape Þrms, and that is turning out ... be- fore it could be cost-eÝective for large- scale production, comments John Van- der Sande, a researcher at the Massa- chusetts Institute of Technology and co-founder of American Supercondu...

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... Òinductivist, ameliorative, progressive, add-a-fact-at- a-time-donÕt-theorize-till-youÕre-old mod- el of doing science.Ó When I ask Gould if he believes, as Kuhn does, that science does not ad- vance toward truth, ... ser- SCIENTIFIC AMERICAN August 1995 35 I.T., Phone Home Cheap calls on the Internet shake everyone up Copyright 1995 Scientific American, Inc. vices more attractive,...

Ngày tải lên: 12/05/2014, 15:01