scientific american special edition - 1999 vol 10 no1 - the future of space exploration

scientific american  special edition  -  1999 vol 10 no1  -  the future of space exploration

scientific american special edition - 1999 vol 10 no1 - the future of space exploration

... study) (NASA) The Future of Space Exploration 19Key Space Explorations of the Next Decade Copyright 1999 Scientific American, Inc. Spaceflight Today20 Scientific American Presents The International Space ... Xue Institute of Scientific and Technical Information of China P.O. Box 2104 Chongqing, Sichuan PEOPLE’S REPUBLIC OF CHINA tel: +8 6-2 3 6-3 8631...
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scientific american  special edition  -  2003 vol 13 no1  -  the edge of physics

scientific american special edition - 2003 vol 13 no1 - the edge of physics

... the collision of two three-branes. Thus, branes are no longer the ugly ducklings of string theory. They have tak- en center stage as the microscopic con- stituents of M-theory, as the higher-di- mensional ... any trouble recognizing the truth of the fun- damental unified theory. The test will be whether the theory successfully accounts for the measured values of th...
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scientific american  special edition  -  1999 vol 10 no2  -  men

scientific american special edition - 1999 vol 10 no2 - men

... after the insult. As the subject was walking down the narrow hallway, a six-foot, three-inch, 250-pound accomplice of the experi- menter walked toward him down the middle of the corridor. Southerners who ... MANAGER 41 5-4 0 3-9 030 fax 41 5-4 0 3-9 033 dsilver@sciam.com DALLAS THE GRIFFITH GROUP 97 2-9 3 1-9 001 fax 97 2-9 3 1-9 074 lowcpm@onramp.net CANADA...
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scientific american  special edition  -  1999 vol 10 no3  -  your bionic future

scientific american special edition - 1999 vol 10 no3 - your bionic future

... make true “off -the- shelf” organs a reality. 12 SCIENTIFIC AMERICAN PRESENTS Copyright 1999 Scientific American, Inc. YOUR NEW BODY YOUR BIONIC FUTURE 13 tains a space for the formation of the tissue ... of the tale will include the transplantation of the human brain with all its complexity preserved. But the brain can’t func- tion properly without the plumbi...
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scientific american  special edition  -  1999 vol 10 no4  -  extreme engineering

scientific american special edition - 1999 vol 10 no4 - extreme engineering

... Once the STM probe comes close enough to one of the surface atoms—around a nano- meter (one billionth of a meter) away— the electron cloud of the atom on the end of the probe and that of the surface ... atoms in a circle on top of a copper sur- face. The ripples inside the ring are the result of the wavelike behavior of electrons in the system. 24 Copyr...
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scientific american  special edition  -  2002 vol 12 no1  -  the hidden mind

scientific american special edition - 2002 vol 12 no1 - the hidden mind

... would be the derivation of the three-dimensional representation of the world from the two-dimensional signals falling onto the retinas of our two eyes or even onto one of them. Visual theorists ... contours. Another and perhaps more striking case is the fill- ing in of the blind spot. The blind spot in each eye is caused by the lack of photore- ceptors in the ar...
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scientific american  special edition  -  1998 vol 09 no1  -  magnificent cosmos

scientific american special edition - 1998 vol 09 no1 - magnificent cosmos

... including the pres- ence or absence of nearby radiation-emitting stars. On the other hand, astronomer David F. Gray of the Univer- sity of Western Ontario in Canada has challenged the existence of the ... geologic features of plan- ets around other stars would require an array of space tele- scopes the size of the U.S. But pictures of Earth do not reveal the...
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scientific american  special edition  -  2000 vol 11 no1  -  weather

scientific american special edition - 2000 vol 11 no1 - weather

... from the weather service’s. “More cloudiness, high of 74,” says Abrams in a voice-mail message. “It will be 60 to 70 percent cloudy. A one- or two-out -of -1 0 chance for showers. A one- out -of -1 00 ... ground-based gauges and other TOP -OF -THE- LINE EQUIPMENT: The Doppler radar tower (above) near Washington Dulles Air- port is one of the workhorses intended to increase the...
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scientific american  special edition  -  1998 vol 09 no3  -  the oceans

scientific american special edition - 1998 vol 09 no3 - the oceans

... nitrogen narcosis in the dark underneath the stern of the wreck of the fa- mous Japanese battleship Naga- to. The 216-meter-long flag- ship of the Imperial Navy dur- ing World War II rests upside down ... on the islands, up to 90 percent of their radi- ation exposure would come from the ce- sium in the local produce. Almost all the rest of their dosage would come...
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scientific american  special edition  -  2000 vol 11 no2  -  the quest to beat aging

scientific american special edition - 2000 vol 11 no2 - the quest to beat aging

... promised future bene- fits once the huge baby-boomer genera- tion retires. The basic cause of the shortfall resides in the awesome, glacial pressures of demographics. The pay-as- you-go concept ... called the U.S. Bur- den of Disease and Injury, by the Harvard School of Pub- lic Health, found a staggering 40-year gap between the longest-lived Americans —Asian -America...
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