mechanical recording head
61Cover version — In popular music, a cover version or cover song, or simply cover, is a new performance or recording of a contemporary or previously recorded, commercially released song or popular song. It can sometimes have a pejorative meaning implying that the …
62Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
63Conan the Barbarian (1982 film) — Conan the Barbarian …
64List of albums containing a hidden track — This list contains the names of albums that contain a hidden track and also information on how to find them. Please note that not all printings of an album contain the same track arrangements, so your copy of album X may or may not have the… …
65arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
66Disk storage — or disc storage is a general category of storage mechanisms, in which data are digitally recorded by various electronic, magnetic, optical, or mechanical methods on a surface layer deposited of one or more planar, round and rotating disks (or… …
67Water wheel — This article is about the machine for converting energy of flowing or falling water. For paddle wheels used to propel watercraft, see paddle wheel ship. For wheels used solely to lift water, see Noria. For factories or industries driven by water… …
68Holy Wood (In the Shadow of the Valley of Death) — Holy Wood (In the Shadow of the Valley of Death) …
69Movie projector — This article is concerned with technical aspects of moving film projection. For non film movie projection, see digital cinema. For historical aspects, see the article history of cinema. 35 mm movie projector in operation …
70photography, 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… …
