A celebration culture and technology, as seen through the history of the humble yet ubiquitous toothpick, from the best-selling author of The Pencil. From ancient Rome, where emperor Nero made his entrance into a banquet hall with a silver toothpick in his mouth, to nineteenth-century Boston, where Charles Forster, the father of the American wooden toothpick industry, ensured toothpicks appeared in every restaurant, the toothpick has been an omnipresent, yet often overlooked part of our daily lives. Here, with an engineer's eye for detail and a poet's flair for language, Henry Petroski takes us on an incredible tour of this most interesting invention. Along the way, he peers inside today's surprisingly secretive toothpick-manufacturing industry, and explores a treasure trove of the toothpick's unintended uses and perils, from sandwiches to martinis and beyond.

'Collaborative Peer Coaching' introduces the 2+2 performance appraisal method, which has been successful in reducing teachers' levels of anxiety & self-doubt, increasing job satisfaction, increasing meaningful contact between teachers & allowing for appraisals in a less threatening context.

Understanding and Using Structural Concepts, Second Edition provides numerous demonstrations using physical models and practical examples. A significant amount of material, not found in current textbooks, is included to enhance the understanding of structural concepts and stimulate interest in learning, creative thinking, and design. This is achiev

Reinforce your classroom knowledge and learn to perform clinical procedures with ease and accuracy. The Procedures Manual to Accompany Dental Hygiene: Theory and Practice contains step-by-step descriptions with information about the materials and equipment necessary to carry out the procedures. Rationales are included to ensure that you comprehend the science behind each step of the procedure. The manual also includes client education handouts and helpful tables and lists covering assessment, evaluation, and general client care. You'll want to keep this book by your side as a quick reference in clinics and as a refresher once you start your practice. - Procedures include simple, clear illustrations and rationales for each step. - Client education handouts and physical assessment and communication tips provide targeted resources for your role in the prevention of oral diseases. - The easy-to-use format makes it a handy and highly portable reference.

Einstein's General Theory of Relativity links the metrical structure of the cosmic order (or "cosmology") to the contingent distributions of matter and energy throughout the universe, one of the chief areas of investigation in astrophysics. However, presently we have neither devised nor discovered system of uniform relations whereby we can make our cosmological measurements intelligible. This is "the measurement problem of cosmology." Using both historical ideas (such as A.N. Whitehead's work in the 1920s) and contemporary evidence and theories, argue that the measurement problem has neither been fully understood nor rightly interpreted. With better grasp of this problem, such as am attempting to provide, the prospects for solution look brighter.

Educational resource for teachers, parents and kids!