This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Microscopy of Ceramics and Cements: Including Glasses, Slags, and Foundry Sands presents the extraordinary value of the microscope in dealing with problems in the manufacture and use of ceramics. This book outlines the methods that are useful in applying polarizing microscope. Organized into 15 chapters, this book begins with an overview of the features of the instruments and of the methods employing them that are appropriate to their use in ceramic research and control laboratories. This text then book surveys the foundation of past experience with the microscope in the several ceramic fields of whitewares, refractories, porcelain enamels, cements, abrasives, foundry sands, and metallurgical slags as a basis for engineering applications and fundamental studies. Other chapters consider the nomenclature employed and interference figures. This book discusses as well the raw materials of ceramics. The final chapter deals with commercially used natural abrasives. This book is a valuable resource for chemists, physicist, and mineralogists.
This text utilizes a three stage approach to classroom behaviour management to assist teachers to avoid behaviour problems, manage those that cannot be avoided and resolve those that cannot be managed.
A quiet market town with no military presence was chosen as the secret communications centre for Britain as the country prepared for war with Germany in 1937. When hostilities began, ' Q Central' attracted a dozen other clandestine operations set up to defend the country or designed to confuse and undermine enemy morale. The headquarters of radar, RAF Group 60, also came to Leighton Buzzard to be hidden from German attack and to be close to the telephone and radio communications needed to run its vast chain of radar stations. These directed the defending fighters that saved the country in the Battle of Britain and then took the bombing war to Germany. Close by, for the same reasons of secrecy and safety, were the satellite stations of Bletchley Park, the now famous code-breaking centre; the Met Office at Dunstable, which gave the all clear for the D-Day landings; Black Ops units that set up false radio stations and wrote propaganda to confuse the enemy; and airfields used for dropping agents behind enemy lines. At Q Central itself was the largest telephone exchange in the world, with more than 1,000 teleprinters communicating with all the armed services in every theatre of war and directing the operations of the secret services. Now the restrictions of the Official Secrets Act have been lifted, enabling eight members of the Leighton Buzzard and District Archaeology and History Society to piece together this compelling story for the first time.
People with only a slight interest in history will enjoy these fascinating, short and easy to understand stories. Serious history buffs will like these lesser-known episodes, not the stories weve heard a million times. For example: try to find anyone who knows about the attempted slave insurrection in Fairfax County, Virginia. With Mary Lincolns spending habits, who knew that Abraham Lincoln actually saved an enormous percentage of his presidential salary? A slave honored in Virginia with a monument; the history of Lee Highway which opened with great fanfare in 1923 as a 3,000 mile road from Washington, DC to San Diego; a story about the Little River Turnpike, the second oldest turnpike in America, built partly by slaves and captured Hessian soldiers. Youll read about two Civil War ships that collided in the Potomac River. Victims included wounded soldiers' wives and one soldiers six-year-old son. Youll read a great account of the massive Civil War corruption. Youll learn about the disastrous condition of the treasury (sound familiar?) during the Revolutionary War. The government tried everything, including a lottery to get the country afloat in a sea of red ink. But the most fascinating story may be about the Revolutionary War soldier who faked his own desertion to defect to the enemy with the highly secretive mission of going behind enemy lines to capture and return for trial the worst traitor in American history: Benedict Arnold. Bet you never heard of this story. There are many other stories in this eclectic, heavily-researched manuscript. Theres a story about the Christmas Truce in World War One, about long-forgotten holidays in Virginia, about the retrocession which sent an area of Washington back to Virginia in 1846, and about the impeachment of a Supreme Court justice (it happened only once). And more!
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