range-tracking circuit
41Virgin Atlantic GlobalFlyer — The Scaled Composites Model 311 Virgin Atlantic GlobalFlyer (registered N277SF) is an aircraft designed by Burt Rutan in which Steve Fossett flew a solo nonstop airplane flight around the world in a time of 67 hours 1 minute from February 28,… …
42Pearl Harbor advance-knowledge debate — The Pearl Harbor advance knowledge debate is a dispute over what, if any, advance knowledge American officials had of Japan s December 7, 1941 attack on Pearl Harbor.Ever since the Japanese attack there has been debate as to how and why the… …
43Automatic number plate recognition — The system must be able to deal with different styles of license plates …
44Diver Detection Sonar — (DDS) systems are sonar and acoustic location systems employed underwater for the detection of divers and submerged swimmer delivery vehicles (SDVs). The purpose of this type of sonar system is to provide detection, tracking and classification… …
45Surveillance — For other uses, see Surveillance (disambiguation). A nest of surveillance cameras at the Gillette Stadium in Foxborough, Massachusetts Surveillance ( …
46Solar inverter — Internal view of a solar inverter. A solar inverter or PV inverter is a critical component in a Photovoltaic system. It performs the conversion of the variable DC output of the Photovoltaic (PV) modules into a utility frequency AC current that… …
47Gas metal arc welding — RMD redirects here. RMD may also refer to IRA Required Minimum Distributions. Gas metal arc welding …
48police — /peuh lees /, n., v., policed, policing. n. 1. Also called police force. an organized civil force for maintaining order, preventing and detecting crime, and enforcing the laws. 2. (used with a pl. v.) members of such a force: Several police are… …
49Amplifier — For other uses, see Amplifier (disambiguation). Generally, an amplifier or simply amp, is a device for increasing the power of a signal. In popular use, the term usually describes an electronic amplifier, in which the input signal is usually a… …
50Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
