Download or read book Grinding Machines written by United States. Defense Logistics Agency and published by . This book was released on 1978 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book What is a Wheel and Axle written by Lloyd G. Douglas and published by Children's Press(CT). This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full-color photographs and simple text introduce young readers to the fundamenetals of the mechanics that drive simple machinery.

Download or read book Women and the Machine written by Julie Wosk and published by JHU Press. This book was released on 2001 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Julie Wosk examines the role of machines in helping women reconfigure and transform their lives. She takes her readers through a gallery of fiction and high and low art which depicts women in their association with machines.

Download or read book Simple Machines written by Ron Simmons and published by Milliken Publishing Company. This book was released on 2000-09-01 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This packet acts as a fulcrum for knowledge, helping with the work of teaching students about simple machines. Explore the effects of these machines with activities and lessons that provide an overview of levers, pulleys, wedges, friction, and more! Reinforce or test students’ understanding using the provided discussion questions, worksheets, and answers.

Download or read book Ancient Machines written by Michael Woods and published by Twenty-First Century Books. This book was released on 2000-01-01 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the invention of six simple machines in various ancient civilizations from the Stone Age to the fall of the Roman Empire.

Download or read book Machinery written by Fred Herbert Colvin and published by . This book was released on 1928 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metalworking Saws and Filing Machines written by United States. Defense Logistics Agency and published by . This book was released on 1983 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Appleton s Dictionary of Machines Mechanics Engine work and Engineering written by and published by . This book was released on 1852 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natal Agriculture Journal written by and published by . This book was released on 1907 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Third Harmonic Utilization in Permanent Magnet Machines written by Kai Wang and published by Springer. This book was released on 2018-08-29 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the utilization of harmonics in the permanent magnet (PM) or rotor shape to improve the torque density of PM brushless AC machines including three-phase inner rotor and outer rotor machines, five-phase machines, dual three-phase machines, linear machines, by means of analytical, finite element analyses, and as well as experimental validation. The torque density can be improved while the torque ripple remains low in PM shaping utilizing the 3rd harmonic. In this book, the analytical expression of output torque is derived for PM machines with rotor shape using the 3rd harmonic, and then the optimal 3rd harmonic for maximizing torque is analytically obtained. The book compares the PM shape in surface-mounted PM (SPM) machines and the rotor lamination shape in interior PM (IPM) machines utilizing the 3rd harmonic, and it becomes clear that their shaping methods and amount of torque improvement are different. In a five-phase PM machine, the 3rd harmonic can be utilized in both the current waveform and PM shapes to further improve the output torque. For the dual three-phase SPM machines without deteriorating the torque more than 30% when the optimal 3rd harmonic into both the current and PM shape are injected. The harmonics in airgap flux density have significant influence on the cogging torque, stator iron flux distribution, and radial force between the rotor and stator. These effects has been investigated as well in this book.

Download or read book Catalogue of the Mechanical Engineering Collection in the Science Division of the Victoria and Albert Museum South Kensington with Descriptive and Historical Notes written by Victoria and Albert Museum and published by . This book was released on 1908 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Appletons Dictionary of Machines Mechanics Engine work and Engineering Illustrated with Four Thousand Engravings on Wood written by and published by . This book was released on 1852 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Motor Truck Journal written by and published by . This book was released on 1912 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Machines Work written by Edward P. Ortleb and published by Lorenz Educational Press. This book was released on 1993-09-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic study of machines and the work they do for students in grades 5-9.

Download or read book Picturing Machines 1400 1700 written by Wolfgang Lefevre and published by MIT Press. This book was released on 2023-12-26 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: How technical drawings shaped early engineering practice. Technical drawings by the architects and engineers of the Renaissance made use of a range of new methods of graphic representation. These drawings—among them Leonardo da Vinci's famous drawings of mechanical devices—have long been studied for their aesthetic qualities and technological ingenuity, but their significance for the architects and engineers themselves is seldom considered. The essays in Picturing Machines 1400–1700 take this alternate perspective and look at how drawing shaped the practice of early modern engineering. They do so through detailed investigations of specific images, looking at over 100 that range from sketches to perspective views to thoroughly constructed projections. In early modern engineering practice, drawings were not merely visualizations of ideas but acted as models that shaped ideas. Picturing Machines establishes basic categories for the origins, purposes, functions, and contexts of early modern engineering illustrations, then treats a series of topics that not only focus on the way drawings became an indispensable means of engineering but also reflect the main stages in their historical development. The authors examine the social interaction conveyed by early machine images and their function as communication between practitioners; the knowledge either conveyed or presupposed by technical drawings, as seen in those of Giorgio Martini and Leonardo; drawings that required familiarity with geometry or geometric optics, including the development of architectural plans; and technical illustrations that bridged the gap between practical and theoretical mechanics.

Download or read book Pattern Making written by Joseph Gregory Horner and published by . This book was released on 1885 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simple Machines written by Jennifer Lawson and published by Portage & Main Press. This book was released on 2001 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 15 lessons in this module introduce students to simple machines, including levers, wheels and axles, gears, pulleys, inclined planes, screws, and wedges. Students investigate how these simple machines work together in systems and use this knowledge to design and construct their own device containing a system of simple machines.Also included:materials lists activity descriptions questioning techniques activity centre and extension ideas assessment suggestions activity sheets and visuals The module offers a detailed introduction to the Hands-On Science program (guiding principles, implementation guidelines, an overview of the skills that young students use and develop during scientific inquiry), a list of children's books and websites related to the science topics introduced, and a classroom assessment plan with record-keeping templates.