this article is a non-technical introduction to the subject. for the main encyclopedia article, see quantum mechanics. this article needs additional citations for verification. please help improve this article by adding citations to reliable sources. unsourced material may be challenged and removed. quantum mechanics is the science of the very .
olivier's first performance of shakespeare on screen. it was also the final film of stage actors leon quartermaine and henry ainley and featured an early screen role for ainley's son richard as sylvius, as well as for john laurie, who played orlando's brother oliver.laurie would go on to co-star with olivier in the three shakespearean films that olivier directed.
the cavity magnetron is a vacuum tube with a filament in the center of an evacuated, lobed, circular cavity resonator. a perpendicular magnetic field is imposed by a permanent magnet. the magnetic field causes the electrons, attracted to the relatively positive outer part of the chamber, to spiral outward in a circular path rather than moving directly to this anode.
surface-mount technology smt is a method in which the electrical components are mounted directly onto the surface of a printed circuit board pcb . an electrical components mounted in this manner is referred to as a surface-mount device smd .in industry, this approach has largely replaced the through-hole technology construction method of fitting components, in large part because smt allows .
this is a list of james bond gadgets featured in the bond films, organized by the film eras of its actor.. the james bond books and films have featured exotic equipment and vehicles, which often prove to be critically useful.. the original books and early adaptations had only relatively minimal pieces like the modified attache case in from russia, with love.
typical communications fiber uses a circular preform. for some applications such as double-clad fibers another form is preferred. in fiber lasers based on double-clad fiber, an asymmetric shape improves the filling factor for laser pumping.
the history of new orleans, louisiana, traces the city's development from its founding by the french, through its period under spanish control, then briefly back to french rule before being acquired by the united states in the louisiana purchase.in the 19th century, new orleans was the largest port in the south, exporting most of the nation's cotton output and other products to western europe .
an electrical connector is an electromechanical device used to join electrical conductors and create an electrical circuit. most electrical connectors have a gender – i.e. the male component, called a plug, connects to the component, or socket.the connection may be removable as for portable equipment , require a tool for assembly and removal, or serve as a permanent electrical joint .
ground loop currents can be induced by stray ac magnetic fields b, green which are always present around ac electrical wiring. the ground loop constitutes a conductive wire loop which may have a large area of several square meters. by faraday's law of induction, any time-varying magnetic flux passing through the loop induces an electromotive .