first detector
121Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
122Explorer 1 — Infobox Spacecraft Name = Explorer 1 small|Satellite 1958 Alpha Organization = Army Ballistic Missile Agency Major Contractors = Jet Propulsion Laboratory Mission Type = Earth science Satellite Of = Earth Launch = February 1, 1958 at 03:48 UTC… …
123NOνA — Schematic of the NOνA far detector NOνA (NuMI Off Axis νe Appearance) is a particle physics experiment designed to detect neutrinos in Fermilab s NuMI (Neutrinos at the Main Injector) beam. Intended to be the successor to MINOS, NOνA will consist …
124optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
125Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …
126Positron emission tomography — (PET) is a nuclear medicine imaging technique which produces a three dimensional image or map of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron emitting radionuclide (tracer), which is… …
127DESY — Sign at the entrance of DESY in Hamburg. The DESY (Deutsches Elektronen Synchrotron, German Electron Synchrotron ) is the biggest German research center for particle physics, with sites in Hamburg and Zeuthen. DESY s main purposes are fundamental …
128Reginald Fessenden — Infobox Celebrity name = Reginald Fessenden caption = The Father of Radio Broadcasting birth date = birth date|1866|10|6|mf=y birth place = East Bolton, Quebec, Canada death date = death date and age|1932|7|22|1866|10|6|mf=y death place = Bermuda …
