Bøker av David H. Levy

David Levy's entertaining, well-researched book is aimed at the amateur enthusiast who likes to learn enjoyably. Beginning with advice on binoculars and telescopes, and how to observe the night sky effectively, the author goes on to describe thoroughly the field of variable star observation, a field in which amateurs have made important contributions. He shows how to interpret variations in light output in terms of the life of a star, from birth through to sometimes violent death. All of the major variable stars are described and classified, as well as other variable objects such as active galaxies, asteroids, comets and the sun. The book also contains a guide to the seasonal night sky. Throughout, practical observations serve to complement the text, producing an exciting, very readable introduction to this fascinating subject.

Offers an account of Eugene Shoemaker's life and the way it has shaped our thinking about the universe. This book reconstructs the journey that began with a young geologist's desire to go to the moon in the late 1940's.

Although the sky enters into much of literature through the ages, British authors offer an especially fertile connection to the heavens, and Levy links the works of seminal authors from Shakespeare on to specific celestial events and scientific advances.

David Levy describes the techniques that have been developed over the years for observing comets - from visual observations and searching, to photography, through to electronic charge-coupled devices (CCDs). This practical handbook is ideal for those hoping to make their own discoveries or who are simply interested in these fascinating objects.

What higher endeavor can there be than to open the universe to a child? This is the perfect guide for the parent or teacher who wishes to introduce the awesome delights of the universe to young people. The authors provide help in selecting a telescope and offer detailed special projects and experiments. 52 illustrations.

Comet shoemaker crashed into Jupiter, changing forever our understanding of comets and cosmic cataclysms. Never in recorded history has a comet created such a catastrophic event as smashing into a planet. Discover what the very latest results of this celestial spectacle have taught scientists and the world.