optical blank
121Machine pistol — This article is about full auto or burst capable pistols. For semi automatic weapons, see semi automatic pistol. A fully automatic Steyr M1912, which was used as a side arm by the Austro Hungarian Army A machine pistol is a handgun style,[1]… …
122NTSC — This article is about the television system. For the Indonesian government agency, see National Transportation Safety Committee. Television encoding systems by nation; countries using the NTSC system are shown in green. NTSC, named for the… …
123Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 …
124IMI Galil — Infobox Weapon name=Galil caption=Galil 5.56 mm origin=flag|Israel type=Assault rifle is ranged=yes service=1972–present used by=See Users wars=Lebanon Conflict, War in Somalia (1992–1993), Iraq War, Operation Enduring Freedom/ISAF – Afghanistan …
125Old-time radio — Before television, radio was the dominant home entertainment medium. Old Time Radio (OTR) and the Golden Age of Radio refer to a period of radio programming in the United States lasting from the proliferation of radio broadcasting in the early… …
126Daguerreotype — 1840 1841 Camerae obscurae and plates for Daguerreotype called Grand Photographe produced by Charles Chevalier (Musée des Arts et Métiers) …
127Preform — A preform is material that has undergone preliminary shaping but is not yet in its final form. Fiber optics In fiber optics, a preform is a piece of glass used to draw an optical fiber.The preform may consist of several pieces of a glass with… …
128Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… …
