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White House. Design date. 2003. The United States twenty-dollar bill (US$20) is a denomination of U.S. currency. A portrait of Andrew Jackson, the seventh U.S. president (1829–1837), has been featured on the obverse of the bill since 1928; the White House is featured on the reverse. As of December 2018, the average life of a $20 bill in ...
Beats Electronics LLC. Beats Electronics LLC (also known as Beats by Dr. Dre, or simply Beats by Dre) is an American consumer audio products manufacturer headquartered in Culver City, California. [1] [2] The company was founded in 2006 by music producer Dr. Dre and record company executive Jimmy Iovine. Since 2014, it has been an Apple subsidiary.
Beat (acoustics) In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies. With tuning instruments that can produce sustained tones, beats can be readily recognized.
List of presidents of the United States on currency. George Washington and Calvin Coolidge on the 1926 Sesquicentennial of American Independence commemorative half dollar. Several presidents of the United States have appeared on currency. The president of the United States has appeared on official banknotes, coins for circulation, and ...
The Beat Generation was a literary subculture movement started by a group of authors whose work explored and influenced American culture and politics in the post-World War II era. [1] The bulk of their work was published and popularized by Silent Generationers in the 1950s, better known as Beatniks. The central elements of Beat culture are the ...
Since nearly everything costs $1.25, you could stock up on these basic household cleaners for $20. One particular item Bakke recommended was steel wool. “Steel wool is steel wool when it comes ...
Rock paper scissors. Rock paper scissors (also known by several other names and word orders, see § Names) is an intransitive hand game, usually played between two people, in which each player simultaneously forms one of three shapes with an outstretched hand. These shapes are "rock" (a closed fist), "paper" (a flat hand), and "scissors" (a ...
Specialty. Cardiology. A premature ventricular contraction ( PVC) is a common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node. PVCs may cause no symptoms or may be perceived as a "skipped beat" or felt as palpitations in the chest. PVCs do not usually pose any danger.