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John Howe S Draconis

Author : John Howe
ISBN : 1760064602
Genre :
File Size : 65.40 MB
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Unfold a Pictura and you'll find a piece of art just waiting for you to make it your own. Colour it in a little. Colour it in a lot. There are no rules. It is yours for the making. Pictura is a stunning range of black-and-white art to collect and colour, for ages 9 to 90.

The American Geography

Author : Jedidiah Morse
ISBN : KBNL:KBNL03000115177
Genre : America
File Size : 80.43 MB
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Category: America

Livestock Bulletin

Author :
ISBN : CORNELL:31924070534957
Genre : Dairy cattle
File Size : 34.9 MB
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Category: Dairy cattle

Centauri Dreams

Author : Paul Gilster
ISBN : 9781475738940
Genre : Science
File Size : 69.99 MB
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I wrote this book because I wanted to learn more about interstel lar flight. Not the Star Trek notion of tearing around the Galaxy in a huge spaceship-that was obviously beyond existing tech nology-but a more realistic mission. In 1989 I had videotaped Voyager 2's encounter with Neptune and watched the drama of robotic exploration over and over again. I started to wonder whether we could do something similar with Alpha Centauri, the nearest star to the Sun. Everyone seemed to agree that manned flight to the stars was out of the question, if not permanently then for the indefinitely foreseeable future. But surely we could do something with robotics. And if we could figure out a theoretical way to do it, how far were we from the actual technology that would make it happen? In other words, what was the state of our interstellar technology today, those concepts and systems that might translate into a Voyager to the stars? Finding answers meant talking to people inside and outside of NASA. I was surprised to learn that there is a large literature of interstellar flight. Nobody knows for sure how to propel a space craft fast enough to make the interstellar crossing within a time scale that would fit the conventional idea of a mission, but there are candidate systems that are under active investigation. Some of this effort begins with small systems that we'll use near the Earth and later hope to extend to deep space missions.
Category: Science

Chemical Industries

Author :
ISBN : UOM:39015080108205
Genre : Chemical industry
File Size : 28.20 MB
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Some vols. include Buyers' guide.
Category: Chemical industry


Author : University of Colorado (Boulder campus)
ISBN : UOM:39015011351882
Genre : History
File Size : 36.48 MB
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Category: History