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Hydropower (from Ancient Greek ὑδρο-, "water"), also known as water power or water energy, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. [1] Hydropower is a method of sustainable energy ...
1980s; 1990s; 2000s; 2010s; 2020s; 2030s; Pages in category "1980 children's books" The following 42 pages are in this category, out of 42 total. This list ...
Pelton patented his wheel as well as his novel design of the double cup runner, and in 1888 formed the Pelton Water Wheel Company in San Francisco to supply the growing demand for hydropower and hydroelectricity throughout the West and world-wide. [6] 'Pelton' is a trademark name for the products of that company, but the term is widely used ...
The preface for 1001 Children's Books You Must Read Before You Grow Up is by children's illustrator and author Quentin Blake and introduction by Julia Eccleshare. [2] There is an index of titles, arranged alphabetically, and an index by author/illustrator, arranged alphabetically too, but by author/illustrator, not by title of book.
Pages in category "Children's books set in the 1980s" The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes. B.
Shirley MacLaine has recalled an uneasy encounter with Donald Trump in the 1980s.. In an excerpt from her new book, The Wall of Life: Pictures and Stories from This Marvelous Lifetime, the 90-year ...
1980s; 1990s; 2000s; 2010s; 2020s; 2030s; Subcategories. ... Pages in category "1980s children's books" The following 2 pages are in this category, out of 2 total.
Also, the series taught children basic history about many diverse subjects, from dinosaurs to World War II. Only the sixth book in the series, The Rings of Saturn, departed from actual history; it is set in the future, and features educational content about the solar system. Some books gave the reader their choice from a small list of equipment ...