target-cathode potential
51Computron Tube — The Computron was an electron tube designed to perform the parallel addition and multiplication of digital numbers. It was conceived by Richard L. Snyder, Jr., Jan A. Rajchman, Paul Rudnick and the digital computer group at the laboratories of… …
52Computron tube — The Computron was an electron tube designed to perform the parallel addition and multiplication of digital numbers. It was conceived by Richard L. Snyder, Jr., Jan A. Rajchman, Paul Rudnick and the digital computer group at the laboratories of… …
53Directional Recoil Identification From Tracks — The DRIFT IIb Detector removed from the vacuum vessel for maintenance. The Directional Recoil Identification From Tracks (DRIFT) detector is a low pressure negative ion time projection chamber (NITPC) designed to detect weakly interacting massive …
54Spacecraft propulsion — A remote camera captures a close up view of a Space Shuttle Main Engine during a test firing at the John C. Stennis Space Center in Hancock County, Mississippi Spacecraft propulsion is any method used to accelerate spacecraft and artificial… …
55Mikoyan-Gurevich MiG-23 — MiG 23 A Soviet Air Force MiG 23MLD Role Interceptor/Fighter (M series) …
56Apple Inc. — This article is about the technology company. For other companies named Apple , see Apple (disambiguation). Apple Inc …
57Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …
58Copper mining in the Democratic Republic of the Congo — mainly takes place in the Copper Belt of the southern Katanga Province of the Democratic Republic of the Congo.[1] Contents 1 Geology 2 History 3 Companies …
59Iconoscope — The Iconoscope was the name given to an early television camera tube in which a beam of high velocity electrons scans a photoemissive mosaic. A research group at RCA headed by Vladimir Zworykin introduced the Iconoscope in 1934 [… …
60Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …
