electron tube panel
51Monoscope — For the portable telescope, see Spotting scope The Indian Head test pattern …
52NTSC — 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… …
53Microplasma — A microwave microplasma jet Microplasmas are plasmas of small dimensions, ranging from tens to thousands of micrometers. They can be generated at a variety of temperatures and pressures, existing as either thermal or non thermal plasmas. Non… …
54Broadcast television systems — There are several broadcast television systems in use in the world today. An analogue television system includes several components: a set of technical parameters for the broadcast signal, a system for encoding color, and possibly a system for… …
55J. Robert Oppenheimer — J. Robert Oppenheimer, c. 1944 Born …
56Display device — Nixie tubes, LED display and VF display, top to bottom. A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input… …
57Flexible organic light-emitting diode — Demonstration of a flexible OLED device Demonstration of a battery driven flexible OLED lamp fr …
58Color grading — or colour painting, is the process of altering and enhancing the color of a motion picture, video image, or still image either electronically, photo chemically or digitally. The photo chemical process is also referred to as color timing and is… …
59List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …
60tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
