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pentathlon

(Encyclopedia) pentathlonpentathlonpĕntăthˈlən [key], composite athletic event. In ancient Greece it comprised leaping, foot racing, wrestling, discus throwing, and casting the javelin. The modern…

Boone

(Encyclopedia) Boone. 1 City (2020 pop. 12,242), seat of Boone co., central Iowa, on the Des Moines River; inc. 1865. It is a railroad and industrial…

Van Halen, Eddie

(Encyclopedia) Van Halen, Eddie (Edward Lodewijk Van Halen), 1955–2020, American rock musician and song writer, b. Amsterdam, Netherlands; his family moved to California when he was young. He and…

Upshaw, Gene

(Encyclopedia) Upshaw, Gene (Eugene Upshaw, Jr.), 1945–2008, American football player and labor union leader, b. Robstown, Tex. He attended Texas College of Arts and Industries (now Texas A&M,…

The Anatomy of a Compact Disc

The Question: A project I am working on for this class requires that I know the exact distance between the grooves on a CD. I've looked everywhere, and I cannot find this…

Feynman, Richard Phillips

(Encyclopedia) Feynman, Richard PhillipsFeynman, Richard Phillipsfīnˈmən [key], 1918–88, American physicist, b. New York City, B.S. Massachusetts Institute of Technology, 1939, Ph.D. Princeton, 1942…

bubble chamber

(Encyclopedia) bubble chamber, device for detecting charged particles and other radiation by means of tracks of bubbles left in a chamber filled with liquid hydrogen or other liquefied gas. It was…

Dale Earnhardt Victories

The Question: Are there any NASCAR tracks that Dale Earnhardt did NOT win on in his career? The Answer: The only tracks that Dale Earnhardt did not win a…