scientific american - 2003 06 - computer heal thyself
scientific american - 2003 06 - computer heal thyself
... consortium developed the 250,000-pound thrust engine prototype as part of a $20-million program. COPYRIGHT 2003 SCIENTIFIC AMERICAN, INC. 24 SCIENTIFIC AMERICAN JUNE 2003 news SCAN A fter the September ... schoolwork. contents june 2003 SCIENTIFIC AMERICAN Volume 288 Number 6 features 54 The key to crash recovery www.sciam.com SCIENTIFIC AMERICAN 5 COPYRIGHT 2003 SCIE...
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scientific american - 1993 06 - tuning in the radio signals of ancient galaxies
... 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...
Ngày tải lên: 12/05/2014, 14:49
scientific american - 1994 06 - was there a race to the moon
... 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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scientific american - 1995 06 - the world's strongest magnets
... 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 ... Stix SCIENTIFIC AMERICAN June 1995 39 Copyright 1995 Scientific American, Inc. I n computer design the obsolescence of technology is often planned. Res- urrection come...
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scientific american - 1996 06 - the space station
... 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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scientific american - 1997 06 - the microchip that rewires itself
... 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...
Ngày tải lên: 12/05/2014, 15:26
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 ... hit-to-kill intercep- tors conducted since the ear- ly 1980s, only six hits have been scored. Recent testing of the most sophisticated sys- tem yet produced, the The- ater High Altitude...
Ngày tải lên: 12/05/2014, 15:37
scientific american - 1999 06 - scanners and scalpels
... OBSERVATORY Wolf-Rayet 104 News and Analysis20 Scientific American June 1999 L unar Prospector is not an impres- sive-looking spacecraft. Shaped like a soup can with its ends cut off, the 295-kilogram (650-pound) orbiter ... cen- turies of permafrost had left the mummies astonishingly well preserved. The joint American- Argentine-Peru- vian team found blood in the hearts and lungs of two...
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scientific american - 2000 06 - the birth of molecular electronics
... Eng- lish-speaking ones; it is virtually absent in parts of rural Africa. The map shows data on the prevalence of wheezing —a com- monly used indicator of asthma —for 1 3- and 14-year-olds, tak- en ... PERCENT Prevalence of Wheezing in 1 3- and 14-Year-Olds over One Year Copyright 2000 Scientific American, Inc. News Briefs News Briefs32 Scientific American June 2000 C OMMUNICATIONS...
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scientific american - 2001 06 - the paradox of the sun's hot corona
... little to do with do- mestic terrorism. The McVeigh group and other organized, overtly ideological extrem- ists —whether right-wing, left-wing, anti-Mus- lim, pro-Muslim, anti-Castro, Puerto Rican nationalist, ... least this makes peo- ple ask more questions.” —Kate Wong NEW ENTRY into the hominid ranks 30 SCIENTIFIC AMERICAN JUNE 2001 Copyright 2001 Scientific American, Inc. 32 SCIE...
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