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A pencil-beam radar A pencil-beam radar. In optics, a pencil or pencil of rays is a geometric construct used to describe a beam or portion of a beam of electromagnetic radiation or charged particles, typically in the form of a narrow beam (conical or cylindrical).
Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...
The viral snapshot shows four bright lights eerily stationed just several feet above the Statue of Freedom atop the Capitol dome and was reportedly taken by US Air Force veteran and licensed tour ...
Royal Air Force pressed into service [65] [66] two Yugoslav-built Do 17Ks which escaped Yugoslavia carrying King Peter and gold. The aircraft were given the serials AX706 and AX707. Both aircraft were destroyed in an air attack on Ismaïlia airfield on 27 August 1941. [67] United States. United States Army Air Forces obtained at least one Do ...
A news anchor for NBC News in Washington, D.C. is stepping away from the desk after a recent segment prompted concern from audiences. NBC4 News issued a statement on-air and on its website on ...
Dec 14, 2014; Foxborough, MA, USA; New England Patriots quarterback Tom Brady (12) celebrates with head coach Bill Belichick (R) after clinching the AFC East title with a 41-13 win over the Miami ...
A bedug is a large double-headed drum [2] with water buffalo or cow leather on both ends. [3] [1]Unlike the more frequently used kendang, the bedug is suspended from a frame and played with a padded mallet.
The Reynolds number has wide applications, ranging from liquid flow in a pipe to the passage of air over an aircraft wing. It is used to predict the transition from laminar to turbulent flow and is used in the scaling of similar but different-sized flow situations, such as between an aircraft model in a wind tunnel and the full-size version ...