Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3938-9
Количество страниц: 652
Язык: english
Формат: PDF
The years between 1900 and 1949 were a time of extremes that included two world wars, a revolution in Russia, and the Depression in the United States. Scientific revolutions brought exciting new knowledge but also called into question the most basic concepts. New technologies and materials provided more deadly instruments of war but also lengthened lives and eased the demands on raw human muscle power. Exploration in this period echoed these extremes. Since many of the easier targets had already been reached, explorers headed for the poles, ventured deep beneath the ocean’s surface, and high into the atmosphere.
Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3937-0
Количество страниц: 631
Язык: english
Формат: PDF
The nineteenth century brought the world telephones, telegraphs, steamboats, electric lights, movies, sewing machines, cars, electric motors, the railroad, Ferris wheels, and aspirin. It was the age of invention, ending with the famous pronouncement in 1899 that “Everything that can be invented has been invented” (Charles H. Duell, Commissioner, U.S. Office of Patents). There are many candidates for the century’s greatest invention, but the winner may be the future itself. While history has seen individuals, such as Francis Bacon, who imagined a world different from that of their parents, most people throughout history did not. They have expected their professions, tools, and entertainments to be essentially the same as those of their parents and grandparents. In the nineteenth century this changed, as inventors and their inventions captured the public imagination.
Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3936-2
Количество страниц: 466
Язык: english
Формат: PDF
During the sixteenth and seventeenth centuries the way educated people viewed the natural world and their relationship to it underwent a radical transformation. Known as the Scientific Revolution, this change was based on the work of such scientists and philosophers as Francis Bacon, Robert Boyle, Nicolas Copernicus, Renй Descartes, Galileo Galilei, William Harvey, Johannes Kepler, Gottfried Leibniz, and John Locke. It reached its crowning achievement with the publication of Isaac Newton’s laws of motion in 1687.
Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3937-0
Количество страниц: 512
Язык: english
Формат: PDF
The years between 1450 and 1699 were a time of worldwide upheaval and change, of discovery and rediscovery, of exploration and invention. During this period the boundaries of man’s physical world expanded, intellectual horizons broadened almost beyond belief, and a technological explosion put into motion an ongoing wave of learning, advancement, and innovation that has continued, albeit fitfully and chaotically at times, to this very day.
Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3934-6
Количество страниц: 419
Язык: english
Формат: PDF
The centuries between 700 and 1449 encompassed the bulk of the Middle Ages, the first glimmerings of the Renaissance, dramatic technical and cultural advances in Asia, the expansion and contraction of the Muslim Empire, and the pinnacle of the Mayan and Incan civilizations in the New World.
Автор: Neil Schlager
Издательство: Gale
Год издания: 2001
isbn: 0-7876-3933-8
Количество страниц: 429
Язык: english
Формат: PDF
Throughout the course of human history, science and society have advanced in a dynamic and mutual embrace. Regardless of scholarly contentions regarding an exact definition of science, the history of science in the ancient world is a record of the first tentative steps toward a systematic knowledge of the natural world. During the period 2000 B.C. to 699 A.D., as society became increasingly centered around stable agricultural communities and cites of trade, the development of science nurtured necessary practical technological innovations and at the same time spurred the first rational explanations of the vastness and complexity of the cosmos.
Автор: Timothy L. Gall
Издательство: Gale
Год издания: 2004
isbn: 0-7876-7335-8
Количество страниц: 607
Язык: english
Формат: PDF
This encyclopedia is different from all others produced in recent years. It is not simply a collection of miscellaneous facts for ready reference. It resembles more the pioneer work of those encyclopedists who ushered in the era of enlightenment in 18th-century France, in that it mirrors the life of men and nations at a great turning point in history, when the national state system of absolute sovereignties has to find new adjustments under the sovereignty of science. The old safeguards for security—mountains and oceans—no longer hold against the impact of an atomic age. The United Nations is the mirror of this new world in which international life becomes more and more interdependent. The political framework is therefore filled in by a comprehensive survey of the major interests of people everywhere. Such an encyclopedia should prove a valuable guide to the understanding not only of the United Nations but of our time.
Автор: Timothy L. Gall
Издательство: Gale
Год издания: 2004
isbn: 0-7876-7334-X
Количество страниц: 809
Язык: english
Формат: PDF
This encyclopedia is different from all others produced in recent years. It is not simply a collection of miscellaneous facts for ready reference. It resembles more the pioneer work of those encyclopedists who ushered in the era of enlightenment in 18th-century France, in that it mirrors the life of men and nations at a great turning point in history, when the national state system of absolute sovereignties has to find new adjustments under the sovereignty of science. The old safeguards for security—mountains and oceans—no longer hold against the impact of an atomic age. The United Nations is the mirror of this new world in which international life becomes more and more interdependent. The political framework is therefore filled in by a comprehensive survey of the major interests of people everywhere. Such an encyclopedia should prove a valuable guide to the understanding not only of the United Nations but of our time.
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