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10 x 21-inch torpedo tubes for Mark 15 torpedoes (2x5) USS Nicholas (DD/DDE-449) was a Fletcher -class destroyer of the United States Navy , serving for a total of 27 years, including through most of World War II , the Korean War , and the Vietnam War .
USS Melvin (DD-680) was a Fletcher-class destroyer and the second ship of the United States Navy to be named for Lieutenant, junior grade John T. Melvin (1887–1917), who was killed on 5 November 1917 [1] while serving on the USS Alcedo in World War I and is recognized as the first American naval officer to die in that war.
Carl Friedrich Gauss in 1810 devised a notation for symmetric elimination that was adopted in the 19th century by professional hand computers to solve the normal equations of least-squares problems. [7] The algorithm that is taught in high school was named for Gauss only in the 1950s as a result of confusion over the history of the subject. [8]
The V-Cube 7 is a combination puzzle in the form of a 7×7×7 cube. The first mass-produced 7×7×7 was invented by Panagiotis Verdes and is produced by the Greek company Verdes Innovations SA. Other such puzzles have since been introduced by a number of Chinese companies, [ 1 ] some of which have mechanisms which improve on the original.
A recording of 2×5 by Bang on a Can was released on September 14, 2010 along with Reich's Pulitzer Prize-winning Double Sextet on the album Double Sextet/2×5.. Another recording of 2×5, performed by Mats Bergström, Magnus Persson, Jonas Ostholm, Johan Liljedahl, and Svante Henryson, was released in 2012 by Mats Bergström Musik.
Professor's Cube in original packaging The V-Cube 5 in its original packaging. The Professor's Cube was invented by Udo Krell in 1981. Out of the many designs that were proposed, Udo Krell's design was the first 5×5×5 design that was manufactured and sold.
4-over-1 and 3-over-1 in the background 5-over-1 style apartment buildings in Austin, Texas. 5-over-1 or over-1s, also known as a one-plus-five or a podium building, [1] is a type of multi-family residential building commonly found in urban areas of North America.
In general, the following identity holds for all non-negative integers m and n, = = + . This is structurally identical to the property of exponentiation that a m a n = a m + n.. In general, for arbitrary general (negative, non-integer, etc.) indices m and n, this relation is called the translation functional equation, cf. Schröder's equation and Abel equation.