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)

扎比内·霍森菲尔德（Sabine Hossenfelder）：德国物理学家、作家、内容创作者。现就职于德国法兰克福高等研究院，已发表研究论文70多篇，研究兴趣是基础物理学，同时也扩展到了哲学与科学社会学。常年为《科学美国人》《新科学家》《鹦鹉螺》《万古》《纽约时报》等刊物供稿。拥有一个活跃的优兔账号，致力于传播科学新闻，普及科学方法论。

As Benjamin Franklin famously put it, Americans have a republic, if we can keep it. Preserving the Constitution and the democratic system it supports is the public’s responsibility. One route the Constitution provides for discharging that duty—a route rarely traveled—is impeachment. Cass R. Sunstein provides a succinct citizen’s guide to an essential tool of self-government. He...(展开全部)

As Benjamin Franklin famously put it, Americans have a republic, if we can keep it. Preserving the Constitution and the democratic system it supports is the public’s responsibility. One route the Constitution provides for discharging that duty—a route rarely traveled—is impeachment. Cass R. Sunstein provides a succinct citizen’s guide to an essential tool of self-government. He...(展开全部)

This text is for teachers and students throughout the world who require an introduction to the subject of econometrics, the notation and technical detail that characterize most textbooks. This edition updates the contents and references throughout the text, while retaining the basic structure and structure of earlier editions. New material has been added on several topics such ...(展开全部)

A Guide to Econometrics has established itself as a preferred text for teachers and students throughout the world. It provides an overview of the subject and an intuitive feel for its concepts and techniques without the notation and technical detail that characterize most econometrics textbooks.The fifth edition has two major additions, a chapter on panel data and an innovative...(展开全部)

热纳维耶芙·安东丽·德阿里奥夫人一生中大多数时间都在巴黎度过，她现在居住在法国南部。自从孩提时代起，她就更乐意陪母亲去裁缝店，而不是去看电影。她在时装设计和珠宝制作方面展现了非凡的才能，并开办了自己的时装店。她最终因为自己的杰出成就而被莲娜丽姿公司聘请，多年来她一直指导着该公司的时装沙龙。

This is the perfect (and essential) supplement for all econometrics classes--from a rigorous first undergraduate course, to a first master's, to a PhD course. Explains what is going on in textbooks full of proofs and formulas Offers intuition, skepticism, insights, humor, and practical advice (dos and don'ts) Contains new chapters that cover instrumental variables and computati...(展开全部)

热纳维耶芙·安东丽·德阿里奥夫人一生中大多数时间都在巴黎度过，她现在居住在法国南部。自从孩提时代起，她就更乐意陪母亲去裁缝店，而不是去看电影。她在时装设计和珠宝制作方面展现了非凡的才能，并开办了自己的时装店。她最终因为自己的杰出成就而被莲娜丽姿公司聘请，多年来她一直指导着该公司的时装沙龙。