All deflection instruments require three forces for correct functioning; deflecting force, a controlling force, and a damping force. Usually, the deflecting force is generated by a magnetic field produced by a current flowing through a coil. This field interacts with another magnetic field which may be form permanent magnet or from other current carrying coils.
Computers architecture is concerned with the structure and behavior of digital computers. It has developed into a discipline for the design and evaluation of computers largely in response to the proliferation of these machines over the last couple of decades. This proliferation has, in turn, been driven by advances in computer technology, both hardware and software. In particular, the developme…
John Grisham's first work of nonfiction, an exploration of small town justice gone terribly awry, is his most extraordinary legal thriller yet. In the major league draft of 1971, the first player chosen from the State of Oklahoma was Ron Williamson. When he signed with the Oakland A's, he said goodbye to his hometown of Ada and left to pursue his dreams of big league glory. Six years later he…
Given the importance of what they do, and the controversies that often surround them, and the violent people they sometimes confront, it is remarkable that in the history of this country only four active federal judges have been murdered. Judge Raymond Fawcett has just become number five. Who is the Racketeer? And what does he have to do with the judge’s untimely demise? His name, for the m…
Experience and education is the best concise statement on education ever published by John Dewey, the man acknowledged to be the pre-eminent educational theorist of the twentieth century. Written more than two decades after democracy and education , this book demonstrates how Dewey reformulated his ideas as a result of his intervening experience with progessive schools and in the light of the c…