angle stop
21History of film — This article is about the history of cinema. For other uses, see History of photography. Years in film 1870s 1880s 1890s …
22Railroad switch — For other uses, see Switch (disambiguation). A right hand railroad switch with point indicator pointing to right …
23Lateinische Buchstaben in Unicode — Lateinische Buchstaben, also Schriftzeichen, die auf dem lateinischen Alphabet aufgebaut sind, sind in Unicode in derzeit 19 Blöcken enthalten. Die 26 Grundbuchstaben befinden sich – neben Ziffern, Satzzeichen und Steuerzeichen – im Unicode Block …
24photography, 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… …
25History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …
26Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …
27Roundabout — This article is about the road junction. For other uses, see Roundabout (disambiguation). Movement within a roundabout in a country where traffic drives on the right. Note the anticlockwise circulation …
28The Amazing Race 11 — Infobox Television Amazing Race show name = The Amazing Race: All Stars caption = The Amazing Race logo first aired = 2007 02 18 last aired = 2007 05 06 filming started = 2006 11 20 filming ended = 2006 12 17… …
29Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
30optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
