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The author discusses whether time travel is scientifically
possible. He examines "the history of the development of general
relativity, the conceptof curved space-time and the early evolution
of the universe. The remainder of the book seeks to] explain the
problems that arise when we attempt to turntheoretical holes in
space-time into time machines." (N Y Times Book Review)
I remember once watching a presentation of the creation of the
universe in a planetarium. It was a fascinating experience: lights
flashing, particles appearing to rush by as an explosive roar
echoed throughout the planetarium. Then suddenly ... black ness.
And after a few seconds ... tiny lights--stars blinking into
existence. I tried to imagine myself actually going back to this
event. Was this really what it was like? It was an interesting
facsimile, but far from what the real thing would have been like.
The creation of the universe is an event that is impossible to
imagine accurately. Fortunately, this has not discouraged peo ple
from wondering what it was like. In Creation I have attempted to
take you back to the begin ning-the big bang explosion-so that you
can watch the uni verse grow and evolve. Starting with the first
fraction of a sec ond, I trace the universe from its initial
dramatic expansion through to the formation of the first nuclei and
atoms. From here I go to the formation of galaxies and the curious
distribu tion they have taken in space. Finally I talk about the
formation of elements in stars, and the first life on the planets
around them.
Today we all take for granted the many technological marvels that
have sprung from quantum physics without ever appreciating the
radical paradigm shift that led to these discoveries. The story of
the physicists who made the quantum leaps that have so altered our
world is a provocative and intriguing one. And there is no better
person to describe the history of this quantum revolution in terms
that everyone can understand than award-winning physicist and
science writer Barry Parker.
Parker introduces us to all the major players in this history,
offering interesting biographical details that shed light on their
important discoveries: Max Planck, Albert Einstein, Niels Bohr,
Werner Heisenberg, Erwin Schroedinger, Paul Dirac, Richard Feynman,
and Julian Schwinger. Parker also discusses Einstein's objections
to quantum theory ("God does not play dice with the universe."),
philosophical implications and "quantum weirdness," as well as the
seemingly miraculous practical applications of quantum theory - in
lasers, transistors, integrated circuits, computer technology,
nuclear energy, and genetics.
Parker's gift for turning the subtle complexities of subatomic
physics into clearly understandable terms while conveying the
excitement and wide-ranging importance of quantum exploration make
him the ideal guide to a field that continues to transform our
world and ultimately our universe.
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