Entries - Entry Category: Science and Technology - Starting with K

KATV Tower

The KATV tower was a 2,000-foot-tall (609.6 meters) television antenna that stood just north of Redfield (Jefferson County), about one-quarter mile east of Interstate 530. Before its collapse in 2008, the tower ranked among the tallest manmade structures in the world and stood as a prominent local landmark, marking the approximate halfway point for drivers traveling between Little Rock (Pulaski County) and Pine Bluff (Jefferson County). Upon its completion on May 1, 1967, the KATV tower was the third-tallest manmade structure in the world, surpassed only by the KVLY-TV and KXJB-TV television masts in North Dakota. By 2008, it shared the rank of fifth-tallest manmade structure in the world, as it was the first of many other 2,000-foot-tall masts that …

Kudzu

Kudzu (Pueraria lobata) is an invasive vine characterized by aggressive growth and clusters of grape-scented purple flowers. It was recognized as a weed in 1972 by the U.S. Department of Agriculture (USDA). A native plant of Asia, kudzu has been used for over two millennia in Asian cooking and medicine. Kudzu was introduced to the United States at the Philadelphia Centennial Exposition (1876) and to southerners at the New Orleans Exposition (1884–1886). Kudzu’s foothold in the American South is largely the result of the efforts of Charles Pleas, Channing Cope, and the Soil Conservation Service (SCS). Pleas owned Glen Arden Nursery in Chipley, Florida, along with his wife, Lillie. After Pleas discovered kudzu’s usefulness for livestock forage and as a …

Kuroda, Paul Kazuo

Paul Kazuo Kuroda, professor of chemistry at the University of Arkansas (UA) in Fayetteville (Washington County), brought international attention to scientific research in Arkansas by correctly predicting the presence of naturally occurring nuclear reactors nearly twenty years before the first discovery of a reactor of this kind in the Oklo Mines in the Republic of Gabon in west-central Africa. Paul Kuroda was born on April 1, 1917, in Kurogi, Fukoka Prefecture, Kyushu, Japan, the only child of Kanjiro Kuroda—a school teacher, official at the Ministry of Education, and noted calligrapher—and Shige Kuroda. Kuroda earned BS and doctoral degrees in pure chemistry from Tokyo Imperial University (now the University of Tokyo) in 1939 and 1944, respectively. Upon completion of his doctorate, …