First pub. 1981 . Rewritten and revised text of this science fiction sequel to MĚ€indwarp' in which the crew of the starship Challenger go in search of their spiritual home, planet Earth, when it vanished from the solar system.
More than 50 educators helped develop 21 different interactive "exhibits" on topics such as Trash, Get Lost, Meet the Humans and Earth: A Wet, Dirty, Bumpy Rock for this hands-on geography museum.
In the mid-1990s, astronomers made history when they began to find planets orbiting stars in the Milky Way. More than eight hundred planets have been found since then, yet none of them is anything like Earth and none could support life. Now, armed with more powerful technology, planet hunters are racing to find a true twin of Earth. Science writer Michael Lemonick has unique access to these exoplaneteers, as they call themselves, and Mirror Earth unveils their passionate quest. Unlike competitors in other races, Geoff Marcy, Bill Borucki, David Charbonneau, Sara Seager, and others actually consult and cooperate with one another. But only one will be the first to find Earth's twin. Mirror Earth tells the story of their competition.
An engaging account of our quest for habitable environments, recounting fascinating recent discoveries and providing insight into future space missions.
The San Francisco Exploratorium squeezed between the covers of a book! The "pages" reflect, magnify, or grow as you follow the instructions. Seven subjects are covered, including light wave craziness, ouchless physics, and hair dryer science.
There is a legendary place in the culture of Arama whose origins are lost in pre-history. It is a place outside the caverns of the free world, peopled with demons and the damned, a place called The Outdoors. Jenine and Ewen believe that it exists, and set out to find it.
In this hard-hitting critique, Carl Boggs argues that the United States is dominated by a new militarism, one that has become more potent and menacing since 9/11. He skillfully explores the origins and development of this new militarism and show its devastating effects on American society.
How much further should the affluent world push its material consumption? Does relative dematerialization lead to absolute decline in demand for materials? These and many other questions are discussed and answered in Making the Modern World: Materials and Dematerialization. Over the course of time, the modern world has become dependent on unprecedented flows of materials. Now even the most efficient production processes and the highest practical rates of recycling may not be enough to result in dematerialization rates that would be high enough to negate the rising demand for materials generated by continuing population growth and rising standards of living. This book explores the costs of this dependence and the potential for substantial dematerialization of modern economies. Making the Modern World: Materials and Dematerialization considers the principal materials used throughout history, from wood and stone, through to metals, alloys, plastics and silicon, describing their extraction and production as well as their dominant applications. The evolving productivities of material extraction, processing, synthesis, finishing and distribution, and the energy costs and environmental impact of rising material consumption are examined in detail. The book concludes with an outlook for the future, discussing the prospects for dematerialization and potential constrains on materials. This interdisciplinary text provides useful perspectives for readers with backgrounds including resource economics, environmental studies, energy analysis, mineral geology, industrial organization, manufacturing and material science.