scientific american - 1998 03 - inside a virtual human
scientific american - 1998 03 - inside a virtual human
... levels.” News and Analysis Scientific American March 1998 25 Universal Expansion New results presented at the American Astronomical Society meeting in Jan- uary confirm earlier analyses that the fate of ... the machine is working a part with a more complicated geometry. A collaboration among academia, in- dustry and government has created sim- ulation software that may be able t...
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scientific american - 1997 03 - the rising seas - how much of a threat
... Act 28 Scientific American March 1997 KAREN KUEHN Matrix “JUGGLING IS A METAPHOR,” says AT&T mathematician Ronald L. Graham. Copyright 1997 Scientific American, Inc. Graham’s history demonstrates ... micro- scopes or special dyes. An invention at Lawrence Berkeley National Laboratory promises to change all that. Researchers in the lab’s Bio- molecular Materials Program have cre-...
Ngày tải lên: 12/05/2014, 15:21
scientific american - 1998 09 - a last look at laetoli
... T. KAMAJIAN Copyright 1998 Scientific American, Inc. HIPPARION TRACKS G 1-1 G 1-2 G 1-3 G 1-9 G 1-8 G 1-7 G 1-6 G 1-1 0 G 1-1 1 G 1-1 2 G 1-1 3 G 1-1 4 G 1-1 9 G 1-2 1 G 1-2 2 G 1-2 3 G2/ 3-1 G2/ 3-2 G2/ 3-3 G2/ 3-6 G2/ 3-5 TUFF ... Scientific American, Inc. G 1-3 1 G 1-3 0 G 1-2 9 G 1-2 8 G 1-2 5 G 1-2 6 G 1-2 7 G 1...
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scientific american - 2001 03 - sculpting the earth from inside out
... applications K. S. SUSLICK AND N. A. RAKOW University of Illinois at Urbana-Champaign ODORS are recorded visu- ally by a camera after waft- ing past metal-ion-based dyes arrayed on a sensor plate. Odor molecules ... Papillae Circumvallate Papilla Taste Buds Salivary Glands Muscle Layer Tongue Palatine Tonsil Lingual Tonsil Circumvallate Papillae Foliate Papillae Filiform PapillaeFungifor...
Ngày tải lên: 12/05/2014, 16:08
scientific american - 1993 03 - black holes and the centrifugal force paradox
... its gravitational ra- dius. A black hole that has the same mass as the sun should have a gravita- tional radius of about three kilometers. If a light ray travels parallel to the sur- face of ... war, however, Pauling de- cided that Òaverting a nuclear catastro- phe is so important that IÕd better do my part.Ó He began speaking out against nuclear weapons and arguing that they had made...
Ngày tải lên: 12/05/2014, 14:49
scientific american - 1994 03 - visiting yourself in the past
... American, Inc. 32 SCIENTIFIC AMERICAN March 1994 C lad in a dark, classically tailored suit and black shoes, Subrahman- yan Chandrasekhar approaches with a slow but ßuid gait. He shakes my hand ... 1,000 SUB-SAHARAN AFRICA NEAR EAST AND NORTH AFRICA ASIA (EXCLUDING CHINA) LATIN AMERICA Arable Land Soil Erosion of Vegetated Land IN USE POTENTIAL Copyright 1994 Scientific American...
Ngày tải lên: 12/05/2014, 14:54
scientific american - 1995 03 - can science cure crime
... new 48 SCIENTIFIC AMERICAN March 1995 Faster Evaluation of Vital Drugs Traditional clinical trials may delay the availability of lifesaving therapies. Regulators now attempt to balance speed against ... complicated its investi- 32 SCIENTIFIC AMERICAN March 1995 Ban That Embargo Physicians advocate lifting sanctions against Cuba S eeing the world in a grain of sand may be passé. Re...
Ngày tải lên: 12/05/2014, 15:00
scientific american - 1996 03 - revealed - spy photo secrets
... areas. CURITIBA SÃO PAULO RIO DE JANEIRO BRASÍLIA PARANÁ ATLANTIC OCEAN BRAZIL URUGUAY PARAGUAY ARGENTINA KARL GUDE MILES 0 500 Copyright 1996 Scientific American, Inc. in southeastern Brazil, has taken a dif- ferent ... cannot reach, has at least mitigated some of the unsanitary conditions that usually prevail (picture at the left was taken before the gar- bage purchases began). A sch...
Ngày tải lên: 12/05/2014, 15:06
scientific american - 1998 01 - flying over the solar system
... mutations are thought to accu- mulate at a constant rate, the amount of time that has passed since two mtDNA News and Analysis30 Scientific American January 1998 Bird Brains Some bird brains are bigger ... that’s all. I did it because I loved it.” Pour la gloire. —W. Wayt Gibbs in Paris News and Analysis40 Scientific American January 1998 A NAKED MAN: Lévi-Strauss among the N...
Ngày tải lên: 12/05/2014, 15:33
scientific american - 1998 02 - wrapping up the universe
... a major appliance manufac- turer, which has a license to incorporate the resonator as a compressor in house- hold refrigerators. —Philip Yam News and Analysis26 Scientific American February 1998 BY ... nothing less than small, feath- ered, short-tailed theropod dinosaurs. Scientific American February 1998 47 The Authors KEVIN PADIAN and LUIS M. CHIAPPE are frequent collabo-...
Ngày tải lên: 12/05/2014, 15:33