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When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually ...
The Entwicklung series (from German Entwicklung lit. 'development'), more commonly known as the E-Series, was a late- World War II attempt by Nazi Germany to produce a standardised series of tank designs. There were to be standard designs in five different weight classes (E-10, E-25, E-50, E-75 and E-100) from which several specialised variants ...
Snellius–Pothenot problem. In trigonometry, the Snellius–Pothenot problem is a problem first described in the context of planar surveying. Given three known points A, B, C, an observer at an unknown point P observes that the line segment AC subtends an angle α and the segment CB subtends an angle β; the problem is to determine the ...
Santa Claus had already taken this form in American popular culture by the late 19th century, long before Coca-Cola used his image in the 1930s. [7] The Coca-Cola bottle's contour bottle was not designed by famous industrial designer Raymond Loewy. [8] [9] Netflix was not founded after its co-founder Reed Hastings was charged a $40 late fee by ...
BMW M1. The E25 Turbo concept sports car was built by BMW as a celebration for the 1972 Summer Olympics in Munich. [1][2] It was designed by Paul Bracq, with gullwing doors and was based on a modified 2002 chassis with a mid-mounted engine. [2] The Turbo featured a 276 hp turbocharged version of the engine from the BMW 2002, foam-filled front ...
The Walleye combined a contrast seeker with a to the launch aircraft that allowed manual override. Optical contrast seekers, or simply contrast seekers, are a type of missile guidance system using a television camera as its primary input. The camera is initially pointed at a target and then locked on, allowing the missile to fly to its target ...
Wickenburg Municipal Airport (FAA LID: E25) is a public use airport located 3.5 miles (3.0 nmi; 5.6 km) west of the central business district of Wickenburg, in Maricopa County, Arizona, United States. It is owned by the Town of Wickenburg. [1] According to the FAA's National Plan of Integrated Airport Systems for 2009–2013, it is categorized ...
Smale's problems is a list of eighteen unsolved problems in mathematics proposed by Steve Smale in 1998 [1] and republished in 1999. [2] Smale composed this list in reply to a request from Vladimir Arnold, then vice-president of the International Mathematical Union, who asked several mathematicians to propose a list of problems for the 21st century.