Examines their history and evolution from 644 A.D. to the 1990s, discussing purposes, technology, designs, theory, materials, efficiency and wind turbines.
Written in 1993; 2,250 words; 6 sources; $ 79.95
From the Paper:
"Historically, wind energy conversion systems can be considered as one of man's earliest machines. Windmills, according to documentation, were used in Persia as early as 644 A.D. to grind grain (5:9). Mechanically, the Persian windmill was a development of the watermill--an earlier machine used for turning grains into flour--and it looked a little like one turned up on end. A vertical shaft was set in a square tower, with sails set at right angles to the shaft at its top end. The wind passed through slots in the tower on to the sails, allowing the shaft to turn, as well as any machinery set at the bottom end (2:13).
Traditionally, this principle travelled with the prisoners of Ghengis Khan to China, where horizontal mills with matting sails, but without the enclosing tower, were used to drive irrigation machinery. The Chinese discovered that if the ..."
We have thousands of high-quality term papers, research papers, essays, book reports and dissertations on every topic. At AcaDemon, you can download those term papers to help you write yours! You can be sure that the term paper, essay, book report or research paper you download are top-quality, competitively priced and high-level work.
Look for more research papers, essays and book reports on Windmills
If you can't find your topic here, try another search
or try our affordable, unique custom paper alternative
Custom Research Services include:
Papers written from scratch, according to your specifications. Every paper is UNIQUE - Guaranteed
This Free Term Paper Abstract is a part of our Term Paper Library.Here you can purchase research papers, examples of essays, academic dissertations, articles, notes, analytical papers, book reports, stories and poems. We have thousands of persuasive, point-of-view, narrative, critical, compare and contrast and other types of essays in our Library. You can also find here Term papers on "Windmills", Essays on "Windmills", Research papers on "Windmills", Student papers on "Windmills", Book reports on "Windmills", Dissertation on "Windmills", Thesis on "Windmills", Summary of paper on "Windmills", Articles written on "Windmills".