Although it was only designed for a ninety-day surface mission, the Viking 1 lander ultimately transmitted science messages to Earth for seven years. This authoritative history chronicles the remarkable achievements of the Viking program during its first three decades. Commissioned by NASA, it recounts the events surrounding the first planetary landing on Earth's closest neighbor and the first on-site search for evidence of extraterrestrial life. It also portrays a human drama in which thousands of professionals from government, industry, and academia joined together to accomplish the seemingly impossible. This history begins with a survey of the qualities that make the surface and atmosphere of Mars prime targets for scientific investigation. A retrospective of NASA's Mariner program follows, detailing the series of robotic interplanetary probes that led to the initiation of the Viking program in 1968. The authors trace the ensuing technological developments, including the first lander vehicles and orbiter. They also profile the cooperation of managerial, technical, and scientific teams during the mission's data-gathering and analysis phases. The final chapters outline the scientific results of the Viking investigations, examine some of the unresolved questions, and consider possible future explorations. Dozens of photos taken by Viking cameras illuminate the text.
Concise, unified, and logical introduction to study of the basic principles of fluid dynamics emphasizes statement of problems in mathematical language. Assumes familiarity with algebra of vector fields. 1963 edition.
Introductory text for graduate students in physics taking a year-long course in quantum mechanics in which the third quarter is devoted to relativistic wave equations and field theory. Answers to selected problems. 1972 edition.
Suitable for college courses, this introductory text covers the language of mathematics, geometric sets of points, separation and angles, triangles, parallel lines, similarity, polygons and area, circles, and space and coordinate geometry. 1974 edition.
In this explosive book, two veteran congressional investigators deliver detailed evidence of the most shocking Clinton scandal exposed to date: How Bill Clinton compromised American security for Chinese money. 14 photos.
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