principal distance
121photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
122pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
123Hyperbola — This article is about a geometrical curve, a conic section. For the term used in rhetoric, see Hyperbole …
124Logarithm — The graph of the logarithm to base 2 crosses the x axis (horizontal axis) at 1 and passes through the points with coordinates (2, 1), (4, 2), and (8, 3) …
125Alteon — Nortel Logo de Nortel Networks Corporation Création 1895 à Montréal …
126Alteon WebSystems — Nortel Logo de Nortel Networks Corporation Création 1895 à Montréal …
127Bay networks — Nortel Logo de Nortel Networks Corporation Création 1895 à Montréal …
128Corporation Nortel Networks — Nortel Logo de Nortel Networks Corporation Création 1895 à Montréal …
