It was wrong that only they had access to the mysterious City, which he had always longed to enter. Above all, it was wrong for the Scholars to have sole power over the distribution of knowledge. The High Law imposed these restrictions and many others, though the Prophecy promised that someday knowledge and Machines would be available to everyone. Noren was a heretic. He defied the High Law and had no faith in the Prophecy's fulfillment. But the more he learned of the grim truth about his people's deprivations, the less possible it seemed that their world could ever be changed. It would take more drastic steps than anyone imagined to restore their rightful heritage. Although these three novels were originally published in hardcover as Young Adult books, the second and third are primarily of interest to older teens and adults; the omnibus editions have therefore been issued as adult science fiction.

    Tesla's rare article, 'The Problem of Increasing Human Energy with Special Reference to the Harnessing of the Sun's Energy' is included. This lengthy article was originally publishing in the June 1900 issue of The Century Illustrated Monthly Magazine and it was the outline for Tesla's master blueprint for the world. Tesla's fantastic vision of the future, including wireless power, anti-gravity, free energy and highly advanced solar power. Also included are some of the papers, patents and material collected on Tesla at the Colorado Spring Tesla Symposiums. Tesla was the inventor of the radio before Marconi, and when he demonstrated wireless remote control to the US Navy in the late 1890s, they replied that it was too advanced! Tesla was an eccentric visionary and probably the greatest inventor who ever lived. His basic inventions power the world of today. What was his vision of tomorrow? Find out in The Tesla Papers.

    But imagine it we can. Here are more than twenty stories from the most inventive writers in the field, including:Poul Anderson * Stephen Baxter * Greg Bear * Gregory Benford * Arthur C. Clarke * Hal Clement * Greg Egan * H. B. Fyfe * R. A. Lafferty * Geoffrey A. Landis * Ursula K. Le Guin * Jack McDevitt * Larry Niven * G. David Nordley * Edgar Pangborn * Kim Stanley Robinson * James H. Schmitz * Cordwainer Smith * Michael Swanwick * James Tiptree, Jr. * John Varley * Vernor VingeThese are the stories of discovering those possibilities-the stories of the explorers and pioneers who push the envelope further out--exciting tales of alien landscapes and adventures on far distant shores that are the heart and soul of science fiction.Contents ix • Preface (Explorers: SF Adventures to Far Horizons) • essay by Gardner Dozois1 • The Sentinel • [2001] • (1951) • shortstory by Arthur C. Clarke9 • Moonwalk • (1952) • novelette by H. B. Fyfe41 • Grandpa • (1955) • novelette by James H. Schmitz60 • The Red Hills of Summer • (1959) • novelette by Edgar Pangborn90 • The Longest Voyage • (1960) • novelette by Poul Anderson115 • Hot Planet • (1963) • shortstory by Hal Clement133 • Drunkboat • [The Instrumentality of Mankind] • (1963) • novelette by Cordwainer Smith158 • Becalmed in Hell • [Known Space] • (1965) • shortstory by Larry Niven169 • Nine Hundred Grandmothers • (1966) • shortstory by R. A. Lafferty178 • The Keys to December • (1966) • novelette by Roger Zelazny198 • Vaster Than Empires and More Slow • (1971) • novelette by Ursula K. Le Guin222 • A Meeting With Medusa • (1971) • novelette by Arthur C. Clarke255 • The Man Who Walked Home • (1972) • shortstory by James Tiptree, Jr.268 • Long Shot • (1972) • shortstory by Vernor Vinge279 • In the Hall of the Martian Kings • (1976) • novella by John Varley313 • Ginungagap • (1980) • novelette by Michael Swanwick339 • Exploring Fossil Canyon • (1982) • novelette by Kim Stanley Robinson359 • Promises to Keep • (1984) • novelette by Jack McDevitt374 • Lieserl • (1993) • shortstory by Stephen Baxter389 • Crossing Chao Meng Fu • (1997) • novelette by G. David Nordley416 • Wang's Carpets • (1995) • novelette by Greg Egan443 • A Dance to Strange Musics • (1998) • novelette by Gregory Benford462 • Approaching Perimelasma • (1998) • novelette by Geoffrey A. Landis

    Because ethical knowledge is based on experience within the field rather than on universal theoretical propositions, it is open to criticism for its lack of theoretical foundation. Once in the clinic, however, ethicists noted the extent to which medical practice itself combined the certitudes of science with craft forms of knowledge. In an effort to forge a middle path between pure science and applied medical and ethical knowledge, bioethicists turned to the work of classical philosophy, especially the theme of a practical wisdom that entails a variable knowledge of particulars. In this book contemporary bioethicists and scholars of ancient philosophy explore the import of classical ethics on such pressing bioethical concerns as managed care, euthanasia, suicide, and abortion. Although the contributors write within the limits of their own disciplines, through cross references and counterarguments they engage in fruitful dialogue.