secondary generator
81German battleship Tirpitz — A recognition drawing of Tirpitz prepared by the US Navy …
82USS Thresher (SSN-593) — The second USS Thresher (SSN 593) was the lead ship of her class of nuclear powered attack submarines in the United States Navy. Her loss at sea during deep diving tests in 1963 is often considered a watershed event in the implementation of the… …
83Single-wire earth return — (SWER) or single wire ground return is a single wire transmission line for supplying single phase electrical power from an electrical grid to remote areas at low cost. It is principally used for rural electrification, but also finds use for… …
84History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …
85Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
86Fluid catalytic cracking — (FCC) is the most important conversion process used in petroleum refineries. It is widely used to convert the high boiling hydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases and other products.cite book|author …
87Iron Man's armor — refers to the powered metal suit worn by Tony Stark when he assumes his superhero role of Iron Man. The first version of the armor was created by Stark with the help of Ho Yinsen. Unlike most other superheroes, the appearance of Stark s armor has …
88GE U28CG — Infobox Locomotive name = GE U28CG powertype = Diesel electric gauge=RailGauge|ussg caption=Santa Fe #358, a GE U28CG, along with its companion unit #353, makes a rare appearance at the head of the San Diegan in 1968. builder=GE Transportation… …
89Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations …
