Neutron moderatorIn nuclear engineering, a neutron moderator is a medium that reduces the speed of fast neutrons, ideally without capturing any, leaving them as thermal neutrons with only minimal (thermal) kinetic energy. These thermal neutrons are immensely more susceptible than fast neutrons to propagate a nuclear chain reaction of uranium-235 or other fissile isotope by colliding with their atomic nucleus. Water (sometimes called "light water" in this context) is the most commonly used moderator (roughly 75% of the world's reactors).
Townsend dischargeIn electromagnetism, the Townsend discharge or Townsend avalanche is a ionisation process for gases where free electrons are accelerated by an electric field, collide with gas molecules, and consequently free additional electrons. Those electrons are in turn accelerated and free additional electrons. The result is an avalanche multiplication that permits electrical conduction through the gas. The discharge requires a source of free electrons and a significant electric field; without both, the phenomenon does not occur.
CBSCBS Broadcasting Inc., commonly shortened to CBS (the abbreviation of its former legal name Columbia Broadcasting System), is an American commercial broadcast television and radio network that is the flagship property of the CBS Entertainment Group division of Paramount Global. Headquartered at the CBS Building in New York City, it has major production facilities and operations at the CBS Broadcast Center and the headquarters of owner Paramount at One Astor Plaza (both also in that city) and Television City and the CBS Studio Center in Los Angeles.
Single-line diagramIn power engineering, a single-line diagram (SLD), also sometimes called one-line diagram, is a simplest symbolic representation of an electric power system. A single line in the diagram typically corresponds to more than one physical conductor: in a direct current system the line includes the supply and return paths, in a three-phase system the line represents all three phases (the conductors are both supply and return due to the nature of the alternating current circuits).
CBS NewsCBS News is the news division of the American television and radio service CBS. CBS News television programs include the CBS Evening News, CBS Mornings, news magazine programs CBS News Sunday Morning, 60 Minutes, and 48 Hours, and Sunday morning political affairs program Face the Nation. CBS News Radio produces hourly newscasts for hundreds of radio stations, and also oversees CBS News podcasts like The Takeout Podcast. CBS News also operates a 24-hour digital news network.
