With known exoplanets now numbering in the thousands and initiatives like 100 Year Starship and Breakthrough Starshot advancing the idea of interstellar travel, the age-old dream of venturing forth into the cosmos and perhaps even colonizing distant worlds may one day become a reality. A Traveler’s Guide to the Stars reveals how. Les Johnson takes you on a thrilling tour of the...(展开全部)

目前已知的系外行星数量已达数千颗，而“100周年星舰”和“突破摄星”等举措也推动了星际旅行的理念，冒险进入宇宙甚至殖民遥远世界的古老梦想有一天可能成为现实。 《星空旅行者指南》揭示了其中的原理。 莱斯·约翰逊将带您踏上一次激动人心的物理学和技术之旅，这些物理学和技术可能使我们能够到达星星。 他讨论了新的系外行星发现、在不远的地平线上有希望的星际任务，以及太空推进、电力、机器人、通信等方面令人兴奋的新发展。 但星际旅行并不容易，而且不适合胆小的人。 约翰逊描述了等待着我们的严酷而令人生畏的广阔空间，并解决了我们为了实现明天的可能性而需要克服的艰巨挑战——包括人类和技术方面的挑战。 《星空旅行者指南》是您通往人类发现的下一个伟大前沿的通行证，它提供了罕见的内部视角，让您了解科学和技术方面的显着突破，这将帮助明天的太空旅行者规划星空航线。 With kno...(展开全部)

A story of the lively adventures of four young Russians whose unconventional ideas are matched only by their off-beat behavior. When this novel by a twenty-eight-year-old Moscow doctor appeared in Russia, it caused a storm of literary excitement. Some critics attacked it for its "hateful" slang, its effervescent irreverence, its frivolity. Still other Russian critics--represent...(展开全部)

A story of the lively adventures of four young Russians whose unconventional ideas are matched only by their off-beat behavior. When this novel by a twenty-eight-year-old Moscow doctor appeared in Russia, it caused a storm of literary excitement. Some critics attacked it for its "hateful" slang, its effervescent irreverence, its frivolity. Still other Russian critics--represent...(展开全部)

The only book you need if you're going back in time What would you do if a time machine hurled you thousands of years into the past. . . and then broke? How would you survive? Could you improve on humanity's original timeline? And how hard would it be to domesticate a giant wombat? With this book as your guide, you'll survive--and thrive--in any period in Earth's history. Bests...(展开全部)

The only book you need if you're going back in time What would you do if a time machine hurled you thousands of years into the past. . . and then broke? How would you survive? Could you improve on humanity's original timeline? And how hard would it be to domesticate a giant wombat? With this book as your guide, you'll survive--and thrive--in any period in Earth's history. Bests...(展开全部)

Humphrey Bogart, Marilyn Monroe, Meryl Streep, James Dean, Anna Magnani, Tom Hanks, Nicole Kidman, Cary Grant, Marcello Mastroianni, Denzel Washington, Russell Crowe, Angelina Jolie, and hundreds more larger-than-life film stars have captured the collective imagination of millions of movie fans around the world. Now, "501 Movie Stars " pays homage to these pop culture idols wit...(展开全部)

作者:(美) Eric Chaisson（艾瑞克.简森），Steve McMillan（史蒂夫.麦克米兰） 译者:孙艳春 Eric Chaisson: 哈佛大学天体物理学博士，曾任太空望远镜科学研究所高级科技人员，约翰?霍普金斯大学和塔夫茨大学教授。现任教于哈佛大学，并在哈佛大学史密斯天体物理中心从事研究工作。出版关于天文学的书籍12本，两次获美国文学奖，两次获美国物理研究奖，一次获哈佛大学Smith-Weld奖。发表论文200余篇，其中一些原创性论文为其赢得了哈佛大学天体物理B. J. Bok奖。 孙艳春: 北京师范大学副教授, 长期从事天文学教学与研究工作, 发表论文多篇, 出版专著1部, 译著多部, 曾多次获教学奖, 研究项目10多项.

作者:(美) Eric Chaisson（艾瑞克.简森），Steve McMillan（史蒂夫.麦克米兰） 译者:孙艳春 Eric Chaisson: 哈佛大学天体物理学博士，曾任太空望远镜科学研究所高级科技人员，约翰?霍普金斯大学和塔夫茨大学教授。现任教于哈佛大学，并在哈佛大学史密斯天体物理中心从事研究工作。出版关于天文学的书籍12本，两次获美国文学奖，两次获美国物理研究奖，一次获哈佛大学Smith-Weld奖。发表论文200余篇，其中一些原创性论文为其赢得了哈佛大学天体物理B. J. Bok奖。 孙艳春: 北京师范大学副教授, 长期从事天文学教学与研究工作, 发表论文多篇, 出版专著1部, 译著多部, 曾多次获教学奖, 研究项目10多项.

Do your characters smile, frown, sign, or shiver too much? Are their hearts always racing, their breath rushing, or worse, they stand there, doing nothing at all? It’s okay, you aren’t alone. Writing powerful, fresh emotional description can be a challenge…or rather it used to be before The Emotion Thesaurus came along. This bestselling guide helps you break free from tired des...(展开全部)