scientific american - 2000 11 - the future of digital entertainment

... trade. The decline was reinforced by the social unrest of the late 1960s, which divided the supporters of civil rights. Furthermore, the economic crisis of the 1970s strengthened the hand of the more ... Low-cost digital movie cameras and PC 48 Scientific American November 2000 The Future of Digital Entertainment Sony’s vision of d -entertainment is...

Ngày tải lên: 12/05/2014, 16:06

... dif- ferent risk factors may affect the expres- sion of the disorder,” the group con- cludes in the Journal of the American Medical Association. The lead author of the study, the larg- est of ... professor of psychology at the University of Liverpool, and other academics have ruffled a few well-groomed feathers in the staid linguis- tics community. Their gos-...

Ngày tải lên: 12/05/2014, 15:16

... FFlloooorr?? Molecular Electronics The Birth of Copyright 2000 Scientific American, Inc. Scientific American June 2000 37Profile Profile served specimen of one of the earliest di- nosaurs ever discovered —a 228-million- year-old ... survey of the number of private companies in the business of small-arms production over the past four decades shows how the market...

Ngày tải lên: 12/05/2014, 16:03

... each cycle of the AC Þeld. When the marble is hopping down the egg tray with the help of the AC Þeld, augmenting the av- erage tilt of the egg tray by increasing the DC voltage does not change the av- erage ... Kazumi Maki of the Universi- ty of Southern California and by the late John Bardeen of the University of Illi- nois, but it is too early to tell w...

Ngày tải lên: 12/05/2014, 14:54

... stunning movie of our watery planet. The spacecraft examined the outer expanses of the earthÕs magnet- ic Þeld and took the Þrst mea- surements of the moonÕs far side since the days of the Apol- lo program. ... returned to the earth over the low-gain antenna. Tape-search- 50 SCIENTIFIC AMERICAN December 1995 JAILBARS, slices of images taken of the asteroid...

Ngày tải lên: 12/05/2014, 15:03

... absolutely firm in their convictions. And if you say to either one of them they’re wrong, then they start tuning you out.” So McNutt tries to make the 15-year-olds aware of the other’s position ... to one of the most beau- tiful spectacles in all of nature: a total eclipse of the sun. The two of us were among them. One of us (Phillips) watched from Bulgaria as the gla...

Ngày tải lên: 12/05/2014, 16:08

... know where on the metabolic spectrum they fell. But so far the fossil record upholds other pre- dictions of the team’s model. The five known spectrum indicating the basic chemical com- ponents. The group ... possi- ble. At the time, southern blacks were coping with the devastating effect of the boll weevil on the cotton crop, which had thrown hundreds of thousands off...

Ngày tải lên: 12/05/2014, 16:19

... book presents an hour-by-hour, round -the- clock journal of your brain’s activities. Drawing on the treasure trove of information from Scientific American and Scientific American Mind magazines ... possible without the research and the articles of the many excellent contributors of Scienti c American and Scienti c American Mind: their work is in large part...

Ngày tải lên: 12/05/2014, 16:39

... people in the U.S. The factor may be associated with about 80 percent of the cases of the ill- ness. IdentiÞcation of the factor, a form of a gene responsible for the manufac- ture of a lipoprotein, ... economic poli- cies: the eÛcient allocation of resourc- es, the fair distribution of resources and the maintenance of a sustainable scale of resource use....

Ngày tải lên: 12/05/2014, 14:50

... says Lorraine V. Jones-Brando of the Stanley Laboratory for the Study of Schizophre- nia and Bipolar Disease at Johns Hop- kins University, the lead author of the study. The new study does not ... spend most of their travel time on the ground. The Past and Future of Global Mobility Scientific American October 1997 61 The Authors ANDREAS SCHAFER and DAVID VICTOR...

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