direct-motor drive
61History 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… …
62stage design — Aesthetic composition of a dramatic production as created by lighting, scenery, costumes, and sound. While elements such as painted screens and wheeled platforms were used in the Greek theatre of the 4th century BC, most innovations in stage… …
63Electric car — An electric car is a type of alternative fuel car that utilizes electric motors and motor controllers instead of an internal combustion engine (ICE). The electric power is usually derived from battery packs in the vehicle.In general terms an… …
64motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
65Ultramatic — For the Voigtländer SLR camera, see Voigtländer Ultramatic CS Ultramatic was the trademarked name of the Packard Motor Car Company s automatic transmission introduced in 1949 and produced until 1956 at Packard s Detroit, Michigan factory. 1935… …
66Mechanical fan — Household electric box fan with a propeller style blade A mechanical fan is a machine used to create flow within a fluid, typically a gas such as air. A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it… …
67Minolta AF — The Minolta A mount now in production via Sony s AMC Alpha Mount Camera Division …
68Doubly-fed electric machine — Doubly fed electric machines (i.e., electric motors or electric generators) belong to a category of electric machines that incorporate two multiphase winding sets of similar power rating that have independent means of excitation. As a result,… …
69Citicar — Manufacturer Sebring Vanguard Also called Comuta Car, Comuta Van Production 1974 to 1977 Successor Comuta Car a …
70Nikon F3 — Type Single lens reflex Film format 35 mm Film size 36 mm × 24 mm Lens Nikon F mount …
