How fast does gravity travel? When will the sun go nova? Who invented the light year? Will we ever travel to the stars? These are just some of the unusual and popular questions NASA astronomer Sten Odenwald answers in Back to the Astronomy Caf, based on his award-winning website "for the astronomically disadvantaged. " Since his acclaimed earlier book The Astronomy Caf publis...(展开全部)

本书为公版书，为不受著作权法限制的作家、艺术家及其它人士发布的作品，供广大读者阅读交流。汇聚授权电子版权。

Written almost a century before the daring flights of the astronauts, Jules Verne’s prophetic novel of man’s race to the stars is a classic adventure tale enlivened by broad satire and scientific acumen. When the members of the elite Baltimore Gun Club find themselves lacking any urgent assignments at the close of the Civil War, their president, Impey Barbicane, proposes that...(展开全部)

A classic of nineteenth-century French literature, this science fiction tale delves into the depths of the Earth, and by so doing, reveals the staggeringly long history of our planet. THIS ENRICHED CLASSIC EDITION INCLUDES : ? A concise introduction that gives the reader important background information ? A chronology of the author's life and work ? A timeline of s...(展开全部)

President Bill Clinton gives us his views on the challenges facing the United States today and why government matters—presenting his ideas on restoring economic growth, job creation, financial responsibility, resolving the mortgage crisis, and pursuing a strategy to get us "back in the future business.” He explains how we got into the current economic crisis, and offers specifi...(展开全部)

President Bill Clinton gives us his views on the challenges facing the United States today and why government matters—presenting his ideas on restoring economic growth, job creation, financial responsibility, resolving the mortgage crisis, and pursuing a strategy to get us "back in the future business.” He explains how we got into the current economic crisis, and offers specifi...(展开全部)

A brilliant, haunting, and profoundly original portrait of the defining tragedy of our time. In this epic history of extermination and survival, Timothy Snyder presents a new explanation of the great atrocity of the twentieth century, and reveals the risks that we face in the twenty-first. Based on new sources from eastern Europe and forgotten testimonies from Jewish survivors...(展开全部)

提摩希‧史奈德（Timothy Snyder） 耶魯大學歷史系講座教授，主要研究方向為現代東歐史，畢業於牛津大學，曾在巴黎、維也納和哈佛大學擔任過研究員。曾獲漢娜‧鄂蘭獎章、萊比錫書展大獎、美國藝術文學院文學獎項，文章評論散見全美各大媒體、報章雜誌專欄。撰有多部備受稱譽的史學著作，包括《血色之地：希特勒與史達林之間的歐洲》、《論暴政》（On Tyranny）、The Road to Unfreedom: Russia, Europe, America等。同時也是美國大屠殺紀念博物館外交關係理事會暨良知委員會的成員、維也納人類科學研究中心的常駐研究員。 譯者：陳柏旭 現為耶魯大學東亞語文學系博士候選人，台灣大學外國語文學學士、中央大學英美文學碩士。合譯有《酷兒政治與台灣現代「性」》。

本书为公版书，为不受著作权法限制的作家、艺术家及其它人士发布的作品，供广大读者阅读交流。汇聚授权电子版权。

A Brief History of Time for the 21st Century At the heart of our galaxy lies a monster so deadly, not even light can escape its grasp. Its secrets lie waiting to be discovered. It's time to explore our universe's most mysterious inhabitants Black Holes At the heart of the Milky Way lies a supermassive black hole 4 million times more massive than our Sun. A place where space and...(展开全部)