scientific american - 1998 06 - liquid computers

... cruise warped space-time in a souped-up De- Lorean. But in reality, traveling into the past —though not impossi- ble under the laws of phys- ics —would prove incredi- bly difficult. Princeton Uni- versity ... 27 Copyright 1998 Scientific American, Inc. News and Analysis28 Scientific American June 1998 Ancient Cosmology In southern Egypt’s Sahara Desert at a site called Nabta, scie...

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... a herd of pathogen- free pigs?Ó Soon-Shiong asks. He is not joking. ÑPhilip E. Ross SCIENTIFIC AMERICAN June 1993 23 Copyright 1993 Scientific American, Inc. 26 SCIENTIFIC AMERICAN June 1993 dded ... based on mannuronic acid and guluronic acid: M-blocks and G- blocks,Ó Soon-Shiong notes. ÒM-blocks stimulate interleukin-1 and tumor ne- crosis factors; G-blocks do not.Ó The workers w...

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... Canada. Long-term monitoring is needed to track changes. SARAH LEEN Matrix Copyright 1994 Scientific American, Inc. SCIENTIFIC AMERICAN June 1994 33 I n 1939 a 33-year-old French mathe- matician ... up-down action over some unit of time. Schršdinger managed to extract clas- SCIENTIFIC AMERICAN June 1994 45 Copyright 1994 Scientific American, Inc. sical behavior from his theory...

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... 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-olds who were exploited to per- form this ... 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- fro...

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... objective: or- ange-throated males beat out blue- throats, blue-throats overpower yel- low-striped throats and yellow-striped throats checkmate orange-throats. These relations have generated a six- year ... 77 7-0 444. Scientific American- branded products available. For free catalogue, write Scientific American Selec- tions, P.O. Box 11314, Des Moines, IA 5034 0-1 314, or call (800) 77...

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... 77 7-0 444. Scientific American- branded products available. For free catalogue, write Scientific American Selec- tions, P.O. Box 11314, Des Moines, IA 5034 0-1 314, or call (800) 77 7-0 444. E-mail: info@sciam.com Photocopying ... mellifera) are re- sponsible for pollinating up to $10-bil- lion worth of apples, almonds and oth- er crops every year, a far more valuable service than the...

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... Paris News and Analysis40 Scientific American January 1998 A NAKED MAN: Lévi-Strauss among the Nambikwara of Brazil in 1938. COURTESY OF CLAUDE LÉVI-STRAUSS Copyright 1997 Scientific American, Inc. I n ... Analysis28 Scientific American January 1998 several weather stations that his atmo- spheric team has deployed around the floe. The machine bristles with high-tech gadgets: a...

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... Photo Copyright 1998 Scientific American, Inc. While at Los Alamos National Labo- ratory in 1990, Lucas studied how shock waves 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-century antecedents. It serves as another in- stance in which retro-tech now contrib- utes to...

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... OF C. CARILLI IAN WORPOLE Copyright 1998 Scientific American, Inc. News and Analysis26 Scientific American March 1998 Moore says he and his colleagues dem- onstrate this with liposomes suspended in ... Copyright 1998 Scientific American, Inc. the article reached the de- sired level of unclarity,” he chuckles. After he re- vealed the hoax, Sokal re- calls, he received a lot of...

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... Analysis Scientific American April 1998 21 BEHIND-THE-KNEE LIGHT PADS were used to manipulate the biological clocks of volunteers. INSTITUTE FOR CIRCADIAN PHYSIOLOGY Copyright 1998 Scientific American, ... Scientific American April 1998 ALFRED T. KAMAJIAN ELECTRON X-RAY RADIATION HEAT DETECTOR POLYETHYLENE FIBER BLANKET 469-FOOT DIAMETER (MAXIMUM) HELIUM-FILLED HIGH-ALTITUD...

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