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The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. [1] [2] The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.
Convolutional neural network ( CNN) is a regularized type of feed-forward neural network that learns feature engineering by itself via filters (or kernel) optimization. Vanishing gradients and exploding gradients, seen during backpropagation in earlier neural networks, are prevented by using regularized weights over fewer connections.
The Tulsa race massacre, also known as the Tulsa race riot or the Black Wall Street massacre, [12] was a two-day-long white supremacist terrorist [13] [14] massacre [15] that took place between May 31 and June 1, 1921, when mobs of white residents, some of whom had been appointed as deputies and armed by city government officials, [16] attacked ...
Ragnar Lodbrok. Ragnar Lodbrok ("Ragnar hairy-breeches") ( Old Norse: Ragnarr loðbrók ), [a] according to legends, [2] was a Viking hero and a Swedish and Danish king. [3] He is known from Old Norse poetry of the Viking Age, Icelandic sagas, and near-contemporary chronicles.
Raleigh ( / ˈrɑːli /; RAH-lee) [8] is the capital city of the U.S. state of North Carolina and the seat of Wake County. It is the second-most populous city in North Carolina, after Charlotte. Raleigh is the tenth-most populous city in the Southeast, the 41st-most populous city in the U.S., and the largest city of the Research Triangle metro ...
1951–1953. Rank. Private. Awards. National Defense Service Medal. George Glenn Jones (September 12, 1931 – April 26, 2013) was an American country musician, singer, and songwriter. He achieved international fame for a long list of hit records, and is well known for his distinctive voice and phrasing. For the last two decades of his life ...