To learn more about the living history of Mount Jackson, stop by the Mount Jackson Museum, located in Town Center. For stories of the history of our surrounding area, visit the Shenandoah County Historical Society online. An issue of Cooperative Magazine features Mount Jackson.
What is backlash in gear terms? The term backlash is defined as the amount by which a tooth space exceeds the thickness of a gear tooth engaged in mesh. It is necessary to ensure the smooth rotation of meshed gears. The following extract is from the KHK Gear Catalogue* which details the types of backlashes, the relationships between backlashes and the fundamental equations, as well as easy-to-understand illustrations of how it all works.
A Guide to Dental Terms. Abrasion - Loss of tooth structure caused by a hard toothbrush, poor brushing teeth technique or bruxism (grinding or clenching the teeth). Abscess - An infection of a tooth, soft tissue or bone. Abutment - tooth or teeth that support a fixed or removable tooth bridge. Adhesive Dentistry - Contemporary term for dental restorations that involve bonding of composite resin or porcelain fillings to natural teeth. Air Abrasion - Removal of tooth structure by blasting a tooth with air and abrasive, a relatively new technology that may avoid the need for anesthetic.