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               "Merlin's
              Tour" 
              Wonders
              of the universe 
              "Merlin’s
              Tour Of The Universe: A Skywatcher’s Guide To Everything From
              Mars And Quasars To Comets, Planets, Blue Moons, And
              Werewolves." Neil de Grasse Tyson, Main Street
              Books/Doubleday, 1997, 299 pages. 
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               "If
              the sun makes rainbows, then does the moon make moonbows?"
              This and other questions are answered in a fascinating new book by
              Dr. Neil de Grasse Tyson on the wonders of the universe. Despite
              the public’s interest in our natural world, science books can
              sometimes be difficult reading for the layperson. "Merlin’s
              Tour" is a wonderful departure from this difficulty. 
              Dr.
              Tyson has used a fictitious character to present the scientific
              information in a delightfully entertaining way. The book is
              centered on an imaginary traveler from the Andromeda galaxy named
              Merlin. He is the five billion-year-old writer of the monthly
              column "Star Date." In this Q & A column Merlin
              answers questions from the general public based on his
              conversations with some of the greatest scientists in Earth’s
              history. The result is an enlightening look at the universe and
              the natural phenomena it contains. Traveling through the universe,
              Merlin investigates and explains the Earth and the other
              astronomical oddities of time and space. During his journey Merlin
              travels beyond the Earth past the moon, planets, stars, asteroids,
              comets and the sun. In each of these chapters Merlin answers
              specific questions pertaining to that phenomena. 
                
               
               
                
              In
              the chapter entitled "Planets," Merlin answers a
              question from a woman in Fort Wayne, Ind., regarding the
              possibility that Saturn could float on water. Despite the fact
              that Saturn is many times the size of Earth, Merlin explains that
              because of its lower density (compared to Earth), Saturn would
              indeed be able to float on water. In "Galaxies Galore" a
              man from Chicago asks if the visible light from the galaxy
              Andromeda is the light is emits now or in the past. Merlin’s
              reply: "You see Andromeda not as it is and where it is, but
              as it was and where it was over two million years ago." The
              result is a fun-filled presentation that educates the reader on
              the scientific information in the field of astronomy.
                
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              Incidentally,
              according to Merlin the moon does make moonbows: "(They) tend
              to appear when you look at the Moon through a hazy,
              semitransparent cloud of tiny ice particles." 
              Dr.
              Tyson has written a very entertaining and informative book on the
              science of astronomy. One of the joys of reading this book is the
              question and answer style of covering the broad subject
              categories. This allows one to read from cover-to-cover or open
              the book at any page and begin reading a submitted question to
              Merlin with his response. Most of the responses are in narrative
              form; a few are presented in poetic rhyme. Dr. Tyson has included
              a glossary of terms common in astronomy, a bibliography for
              further reading, and an easy to use index. 
              Dr.
              Tyson is currently the Frederick P. Rose director of the Hayden
              Planetarium. He has published several books and his writing
              appears in many publications, including the magazine "Natural
              History." 
              "Merlin’s
              Tour Of The Universe" is recommended for any adult or young
              person who is looking for an entertaining source of information to
              expand their knowledge of the universe. 
              For
              more information, visit the library at 725 Pekin St. or call
              732-8878. 
              [Richard
              Sumrall, 
              Lincoln Public Library District] 
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