scientific american special online issue - 2002 no 03 - the science of war - nuclear history
scientific american special online issue - 2002 no 03 - the science of war - nuclear history
... WAR: THE SE-CRET HISTORY OF THE GER-MAN BOMB. Thomas Powers. Al-fred A. Knopf, 1993. SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE 14 The Science of War: Nuclear History COPYRIGHT 2002 SCIENTIFIC AMERICAN, ... Verysoon after the July test, some 60 of usflew from Los Alamos to the North Pa-cific to assist in the assembly of these SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE 9 The Science of War: Nuclear History COPYRIGHT ... Szilard. SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE 21 The Science of War: Nuclear History COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC.lard for a cup of coffee but also his driv-er.” Edward Teller...
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scientific american special online issue - 2002 no 04 - the search for alien life
... KAMAJIAN21 SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE NOVEMBER 2002 originally published April 1996COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC. SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE 22 The Search ... MILLER12 SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE NOVEMBER 2002 COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC.ly force us to take our search to the far side of the moon, the one place in the solar ... OBSCUREDPLANET25 SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE NOVEMBER 2002 COPYRIGHT 2002 SCIENTIFIC AMERICAN, INC.form perfect images. If the halo sur-rounding the star extends beyond the planet’s orbit, then...
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scientific american special online issue - 2005 no 23 - the human odyssey
... islands of Tuscany, whichwould eventually be joined to one anoth-er and the rest of Europe by the retreat of the sea to form the backbone of the Ital-ian peninsula. Large-bodied and small-brained, ... piecetogether the evolutionary history of our ex-tended family. Ongoing fieldwork promis-es to fill some of the gaps in our knowl-edge. But until then, we must hypothesizebased on what we know. The ... site, in the Bahr el Ghazal re-gion of Chad, lies 2,500 kilometers west of the western part of the Rift Valley,thus extending the range of Australo-pithecus well into the center of Africa.The...
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scientific american special online issue - 2006 no 26 - the nanotech revolution
... year.Honey, I Shrunk the FeaturesADVANCES IN the engineering of the silicon substrate are only part of the sto-ry: the design of the transistors con-structed atop the silicon has also im-proved tremendously ... served as proof of princi-ple in the strictest sense of the expression. The com-pany has not made commercial flash memories foryears, so the invention could not be applied immedi-ately to improve ... degree C, the alignment of the bits will no longer matchthat of the tips. A feedback system to com-pensate for misalignment would add com-plexity and thus cost. We are not yet cer-tain of the best...
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scientific american special online issue - 2003 no 05 - tackling major killers - heart disease
... cluster of con-duction tissue cells collectively known as the sinoatrial node. This node, located at the top of the right atrium, establishes the tempo of the heartbeat; hence, it is of- ten referred ... along the surface of the septum (awall dividing the two ventricles) to the tip of the heart (the apex) and, fromthere, up along the inner surface of the external (lateral) walls to the top of the ventricle.As ... cells12328 SCIENTIFIC AMERICAN SPECIAL ONLINE ISSUE JANUARY 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.29131924TABLE OF CONTENTSScientificAmerican.com special online issue no. 5TACKLING...
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scientific american special online issue - 2003 no 07 - hiv - 20 years of research
... researchers—including An-drew J. Leigh Brown of the University of Ed-inburgh, Jaap Goudsmit of the University of COURSE OF HIV INFECTION typically runsmany years, during most of which the patienthas no symptoms. ... EXCLUSIVE ONLINE ISSUE JULY 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.power of the peptide. (Some epitopes evokemore T cell replication than do others.) The results of the multiple-epitope modelswere ... encountered the one carrying the right flag. The HIV soldiers,meanwhile, would continue to pick off everyspecialist they met and would ultimately win the war. Beyond giving us the concept of a di-versity...
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scientific american special online issue - 2003 no 08 - forces of nature
... Mount Etna’s southernflank on October 30, 2002. 11 SCIENTIFIC AMERICAN EXCLUSIVE ONLINE ISSUE AUGUST 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.swers should be found in the theory of plate tectonics, ... position at the crossroads of these faults was the explanation for itsvolcanism. The presence of faults, how-ever, accounts only for the ability of mag-ma to reach the surface; it does not ex-plain ... Etna’s northern flank.15 SCIENTIFIC AMERICAN EXCLUSIVE ONLINE ISSUE AUGUST 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.In 1996 a French-Italian research teamconsisting of Pierre Schiano (Blaise...
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scientific american special online issue - 2003 no 09 - germ wars
... Protease/helicaseRNApolymerase Enve-lope1Envelope2Non-struc-tural2Nonstructural3Non-structural4Nonstructural524 SCIENTIFIC AMERICAN EXCLUSIVE ONLINE ISSUE NOVEMBER 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, ... numerous chal-lenges, and the prospects for eradicating the virus altogether appear dismal. At-21 SCIENTIFIC AMERICAN EXCLUSIVE ONLINE ISSUE NOVEMBER 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.tempts ... 18 SCIENTIFIC AMERICAN EXCLUSIVE ONLINE ISSUE NOVEMBER 2 003 COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.COPYRIGHT 2 003 SCIENTIFIC AMERICAN, INC.SUPPRESSIVESECRETIONSSUPPRESSORT CELLAUTO-ANTIGENDELIVEREDIN...
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scientific american special online issue - 2004 no 11 - diet and health
... appeared above the ground, the heat of the sun cookedthem into ripe fruits and grains. If hu-mans gathered these foodstuffs, theycould cook them further to create edi-ble dishes. Finally, the internal ... meal.17th-Century CookingBy the middle of the 17th century,however, physicians of a quite dif-ferent persuasion began to join the courts of northern Europe. These scholars de-rived their ideas ... the appetite, eatingthem seems to have the effect of signi - cantly reducing the intake of other foods.Yet another concern regarding the USDA pyramid is that it promotes over-consumption of...
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scientific american special online issue - 2004 no 12 - extreme physics
... one.From the frog perspective, the evolution of the wave func-tion corresponds to a never-ending sliding from one of these 10to the 10118 states to another. Now you are in universe A, the one ... Fromtheir frog perspective, however, each of these alter egos is un-aware of the others and notices the branching merely as a slightrandomness: a certain probability of continuing to read or not.As ... that the enormous usefulness of mathemat-ics in the natural sciences is something bordering on the mys-terious.” Conversely, mathematical structures have an eerilyreal feel to them. They satisfy...
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