operability
31Quality of service — In the field of computer networking and other packet switched telecommunication networks, the traffic engineering term quality of service (QoS) refers to resource reservation control mechanisms rather than the achieved service quality. Quality of …
32Risk management — For non business risks, see risk, and the disambiguation page risk analysis Example of risk management: A NASA model showing areas at high risk from impact for the International Space Station. Risk management is the identification, assessment,… …
33Submarine — For other uses, see Submarine (disambiguation). A Japan Maritime Self Defense Force Oyashio class submarine in 2006 A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which… …
34Standard gauge — For Standard Gauge in toy trains, see Standard Gauge (Toy Trains). Track gauge by size …
35Wicca — This article is about the duotheistic religion. For other uses, see Wicca (disambiguation). This pentacle, worn as a pendant, depicts a pentagram, or five pointed star, used as a symbol of Wicca by many adherents. Wicca (pronounced  …
36Neutron bomb — A neutron bomb or enhanced radiation weapon (ERW) or weapon of reinforced radiation is a type of thermonuclear weapon designed specifically to release a large portion of its energy as energetic neutron radiation rather than explosive energy.… …
37Unavailability — can be defined as the probability that an item will not operate correctly at a given time and under specified conditions. It opposes availability.Numerical values associated with the calculation of availability are often awkward, consisting of a… …
38F/A-18 Hornet — Infobox Aircraft name= F/A 18 Hornet caption= A USMC F/A 18 in flight type= Multirole fighter national origin = United States manufacturer= McDonnell Douglas / Boeing Northrop designer= first flight= 18 November 1978 introduction= 7 January 1983… …
39Murphy's law — For other uses, see Murphy s Law (disambiguation). Not to be confused with Muphry s law. Murphy s law is an adage or epigram that is typically stated as: Anything that can go wrong will go wrong . Contents 1 History 2 Association with Murphy …
40Trinity (nuclear test) — For other uses, see Trinity (disambiguation). Trinity The Trinity explosion, 0.016 seconds after detonation. The fireball is about 600 feet (200 m) wide. The black specks silhouetted along the horizon are trees. Information Country… …
