Carl Sagan's Cosmic Connection（ISBN=9780521783033） 下载 pdf 百度网盘 epub 免费 2025 电子书 mobi 在线

　　In 1973, Carl Sagan published The Cosmic Connection, a daring

view of the universe, which rapidly became a classic work of

popular science and inspired a generation of scientists and

enthusiasts. This seminal work is reproduced here for a whole new

generation to enjoy. In Sagan's typically lucid, lyrical style, he

discusses many topics from astrophysics and solar system science,

to colonization of other worlds, terraforming and the search for

extraterrestrials. Sagan conveys his own excitement and wonder, and

relates the revelations of astronomy to the most profound human

problems and concerns: issues that are just as valid today as they

were 30 years ago. New to this edition are Freeman Dyson's comments

on Sagan's vision and the importance of the work, Ann Druyan's

assessment of Sagan's cultural significance as a champion of

science, and David Morrison's discussion of the advances made since

1973 and what became of Sagan's predictions.

· Contains scientific updates and new material by world-class

scientists David Morrison and Freeman Dyson · Includes a new

commentary by Sagan's long-time collaborator Ann Druyan, co-author

of Contact and the Cosmos television series · A classic book by an

author of cosmic reputation, as relevant today as it ever was

Foreword Freeman Dyson

Personal reflections Ann Druyan

Preface

Part I. Cosmic Perspective:

　1. A transitional animal

　2. The Unicorn of Cetus

　3. A message from earth

　4. A message to earth

　5. Experiments in utopias

　6. Chauvinism

　7. Space exploration as a human enterprise

　　I. The scientific interest

　8. Space exploration as a human enterprise

　　II. The public interest

　9. Space exploration as a human enterprise

　　III. The historical interest

Part II. The Solar System: 10. On teaching the first grade

　11. 'The ancient and legendary Gods of old'

　12. The Venus detective story

　13. Venus is hell

　14. Science and 'intelligence'

　15. The moons of Barsoom

　16. The mountains of Mars

　　I. Observations from earth

　17. The mountains of Mars

　　II. Observations from space

　18. The canals of Mars

　19. The lost pictures of Mars

　20. The Ice Age and the cauldron

　21. Beginnings and ends of the Earth

　22. Terraforming the plants

　23. The exploration and utlization of the solar system

Part III. Beyond the Solar System: 24. Some of my best friends are

dolphins

　25. 'Hello, central casting? Send me twenty

extraterrestrials'

　26. The cosmic connection

　27. Extraterrestrial life: an idea whose time has come

　28. Has the Earth been visited?

　29. A search strategy for detecting extraterrestrial

intelligence

　30. If we succeed …

　31. Cables, drums, and seashells

　32. The night freight to the stars

　33. Astroengineering

　34. Twenty questions: a classification of cosmic

civilisations

　35. Galactic cultural exchanges

　36. A passage to elsewhere

　37. Starfolk

  　I. A Fable

　38. Starfolk

　　II. A future

　39. Starfolk

　　III. The cosmic Cheshire cats

Epilog David Morrison

Index

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书籍介绍

In 1973, Carl Sagan published The Cosmic Connection, a daring view of the universe, which rapidly became a classic work of popular science and inspired a generation of scientists and enthusiasts. This seminal work is reproduced here for a whole new generation to enjoy. In Sagan's typically lucid, lyrical style, he discusses many topics from astrophysics and solar system science, to colonization of other worlds, terraforming and the search for extraterrestrials. Sagan conveys his own excitement and wonder, and relates the revelations of astronomy to the most profound human problems and concerns: issues that are just as valid today as they were 30 years ago. New to this edition are Freeman Dyson's comments on Sagan's vision and the importance of the work, Ann Druyan's assessment of Sagan's cultural significance as a champion of science, and David Morrison's discussion of the advances made since 1973 and what became of Sagan's predictions.