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Ever since the dawn of time, eclipses have been percieved as peculiarly portentous events. These once-in-a-lifetime happenings hold a powerful fascination for us all. Steel's book explains much about eclipses, their science and their significance to humankind.
This book serves as introduction to quantum theory with emphasis on dynamical behaviour and applications of quantum mechanics, with minimal discussion of formalism. The goal is to help engineering and physics students begin to learn the tools for a quantum toolbox they will need to work in this area.
"If you lie awake worrying about the overnight transition from December 31, 1 b.c., to January 1, a.d. 1 (there is no year zero), then you will enjoy Duncan Steel's Marking Time."--American Scientist "No book could serve as a better guide to the cumulative invention that defines the imaginary threshold to the new millennium."--Booklist A Fascinating March through History and the Evolution of the Modern-Day Calendar . . . In this vivid, fast-moving narrative, you'll discover the surprising story of how our modern calendar came about and how it has changed dramatically through the years. Acclaimed author Duncan Steel explores each major step in creating the current calendar along with the many...
A thought-provoking and chilling scenario of the Earth being hit by an asteroid or comet is presented, with the author theorizing the effects of such an impact. Photos and illustrations.
Hinduism, Buddhism, Taoism, Islam, Judaism, Christianity, and the New Age Movement have radically different views of God and the hereafter. This book presents a concise summary of each religion’s core beliefs and, using the rules of evidence, establishes which religious claims are credible. It answers questions such as: Is God real or an illusion? Are there many gods or just one? Are we subject to reincarnation and karmic retribution? Can we communicate with spirit guides in other dimensions? In Which god Is God?, Adrian Adams provides an easy to understand guide for those who want to know if God exists and how to separate truth from speculation about our souls and eternity.
From one of the bestselling science fiction authors of all time comes this heart-stopping far future novel of an asteroid on a collision course with Earth. A century into the future, technology has solved most of the problems that have plagued our time. However, a new problem is on the horizon—one greater than humanity has ever faced. A massive asteroid is racing toward Earth, and its impact could destroy all life on the planet. Immediately after the asteroid—named “Kali” after the Hindu goddess of chaos and destruction—is discovered, the world’s greatest scientists begin researching a way to prevent the disaster. In the meantime, Cpt. Robert Singh, aboard the starship Goliath, may be the only person who can stop the asteroid. But this heroic role may demand the ultimate sacrifice. “Entertaining . . . [Clark] handles both ideas and characters with deftness and wit.” —Chicago Sun-Times
Most scientists now agree that some sixty-five million years ago, an immense comet slammed into the Yucatan, detonating a blast twenty million times more powerful than the largest hydrogen bomb, punching a hole ten miles deep in the earth. Trillions of tons of rock were vaporized and launched into the atmosphere. For a thousand miles in all directions, vegetation burst into flames. There were tremendous blast waves, searing winds, showers of molten matter from the sky, earthquakes, and a terrible darkness that cut out sunlight for a year, enveloping the planet in freezing cold. Thousands of species of plants and animals were obliterated, including the dinosaurs, some of which may have become...