directional counter
91XB-70 Valkyrie — Infobox Aircraft name=XB 70 Valkyrie type=Strategic bomber Supersonic research aircraft manufacturer=North American Aviation caption= designer= first flight=21 September 1964 introduced= retired= number built=2 XB 70s status=Retired from testing… …
92Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …
93Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …
94Chinese grammar — This article describes the grammar of Standard Chinese. For the grammars of other forms of Chinese, see their respective articles via links on Chinese language and varieties of Chinese. 中文語法/中文语法 Zhōngwén yǔfǎ (Chinese grammar) Standard Chinese… …
95Crown Records — has been the name of several different record labels. Contents 1 Modern Records subsidiary 1.1 Discography 1.2 Singles 1.3 Album …
96Interstate 495 (Capital Beltway) — Capital Beltway redirects here. For the circumferential highway around Harrisburg, Pennsylvania, see Capital Beltway (Harrisburg). Interstate 495 Capital Beltway …
97Cope's rule — states that population lineages tend to increase in body size over evolutionary time.[1] While the rule has been demonstrated in many instances, it does not hold true at all taxonomic levels, or in all clades. Larger body size is associated with… …
98Concurrency (road) — Signs indicating a concurrency of Interstate 93, U.S. Route 1, and Massachusetts Route 3 in Boston A concurrency, overlap, or coincidence in a road network is an instance of one physical road bearing two or more different highway, motorway, or… …
99Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
100Microsoft Jet Database Engine — This article is about JET Red used in Microsoft Access. For the JET Blue ISAM implementation, see Extensible Storage Engine. The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database… …
