Science and Technology

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Entry Category: Science and Technology - Starting with B

Bachman, Joseph

Joseph Bachman is widely recognized as Arkansas’s leading developer of grape varieties. During his career, he received national and international attention for his development of grape vines, winning several awards and supplying cuttings and plants to numerous nurseries. Joseph Bachman was born in 1853 in Lucerne, Switzerland. Little is known about his childhood, including his family, education, and early career. According to immigration records, Bachman arrived in New York on May 9, 1878, on a ship that had departed Le Havre, France, earlier that year. By 1881, following the advice of his relatives, Bachman had settled in the town of Altus (Franklin County), where many of his other countrymen resided. He held a wide array of occupations, serving as the …

Bachman’s Warbler

aka: Vermivora bachmanii
Bachman’s warbler (Vermivora bachmanii) was a small, yellow-and-black bird of the American wood-warbler family (Parulidae) that formerly nested in the southeastern United States, including Arkansas. In winter, Bachman’s warblers migrated south to spend the winter on the island of Cuba. Preferring swampy bottomland habitat, the species suffered severe population decline in the early twentieth century when that habitat began disappearing and believed by most ornithologists since the 1960s to be extinct. It was officially declared so by the U.S. Fish and Wildlife Service in 2021. Bachman’s warbler was discovered in 1832 near Charleston, South Carolina, by the Reverend John Bachman, a skilled amateur naturalist. Bachman (pronounced BACKman) was a close friend to John James Audubon, the famed naturalist and artist. …

Baerg, William J.

William J. Baerg was a naturalist, entomologist, and teacher who served as head of the Department of Entomology at the University of Arkansas (UA) in Fayetteville (Washington County) for thirty-one years. His research on black widow spiders, tarantulas, scorpions, and other arthropods led to descriptions of their behavior, biology, and natural history that had previously been largely ignored by biologists and entomologists. William Baerg was born in Hillsboro, Kansas, to Johann and Magaretha (Hildebrand) Baerg on September 24, 1885. His parents, who had left Russia in 1874, worked as field hands on a Kansas wheat farm. The family later acquired a small piece of land for their own. Baerg was the sixth of seven children. Baerg began school at age seven. At …

Baker, Oliver Keith

Oliver Keith Baker is a Yale University physicist who has conducted groundbreaking research in particle physics and is a nationally known educator for his work on integrating technology into the classroom. He was inducted into the Arkansas Black Hall of Fame in 2006. Oliver Baker was born on July 18, 1959, in McGehee (Desha County) to Oliver Walter Baker and Yvonne Brigham Baker of Tillar (Drew and Desha counties); he has ten siblings. His parents were both college educated, having met at what is now the University of Arkansas at Pine Bluff (UAPB). He discovered a talent for science and mathematics while in junior high. His family moved to Memphis, Tennessee, when he was in middle school. After graduating from …

Banded Pygmy Sunfish

The banded pygmy sunfish (Elassoma zonatum) belongs to its own family (Elassomatidae) and the Order Perciformes. It is a diminutive sunfish that is about 25 to 40 mm (1.0 to 1.5 in.) in total length. This fish is endemic to the United States, where it ranges in the Mississippi River drainage from Indiana and Illinois south to Texas and east along the Atlantic Coast from North Carolina south to Florida. There are six additional species of Elassoma, including spring pygmy sunfish (E. alabamae), Carolina pygmy sunfish (E. boehlkei), Everglades pygmy sunfish (E. evergladei), Gulf Coast pygmy sunfish (E. gilberti), bluebarred pygmy sunfish (E. okatie), and Okefenokee pygmy sunfish (E. okefenokee). Interestingly, E. zonatum was described by the “Father of American …

Baring Cross Bridge

The Baring Cross Bridge is located in downtown Little Rock (Pulaski County) over the Arkansas River at river mile 166.2. It is the western-most bridge of the six bridges spanning the Arkansas River in downtown Little Rock. The first Baring Cross Bridge, the first bridge built across the Arkansas River, opened in 1873. In the 1850s and 1860s, the Cairo and Fulton Railroad Company (C&F) developed two divisions north and south of the Arkansas River. Before the bridge was constructed, the railroad company used ferries to transport equipment, people, animals and commercial freight across the river. Ferries, however, were slow and had a limited amount of cargo space, which caused frequent backups in service. Also, cargo was lost in ferry …

Barton, Loy

Loy Edgar Barton was a prolific pioneer in the field of radio and television engineering. He was awarded a number of U.S. patents and was responsible for significant technical inventions in radio and television technology. Loy Barton was born on November 7, 1897, to Henry Barton and Mary Frances Barton in Washington County, Arkansas, and spent his early life there. He displayed an early interest in machinery and the relatively new fields of electricity and “wireless” transmission, leading to his enrollment in the engineering program at the University of Arkansas (UA) in Fayetteville (Washington County). He received an undergraduate degree there and began teaching engineering courses at the school. During this period, Barton elected to pursue advanced engineering studies and, …

Bats

Bats belong to the class Mammalia and the order Chiroptera. There are two suborders: the Yinpterochiroptera (formerly Megachiroptera), which includes the horseshoe and Old World fruit bats (megabats), and the Yangochiroptera (formerly Microchiroptera), the remainder of bats. Worldwide, there are eighteen families, 202 genera, and more than 1,100 species of bats with only about four percent (at least forty-five species) occurring in the United States. This mammalian order is second only in number of species behind the rodents (order Rodentia). Sixteen bat species occur in Arkansas. Much of the past research on bats in Arkansas was conducted by Michael J. (Mick) Harvey (1934–2015) of Tennessee Technical University in Cookeville. His research on several endangered bats in Arkansas was instrumental in …

Beaver Dam and Lake

Beaver Lake was created by Beaver Dam in Carroll County. The lake—technically a reservoir since it was created by a manmade dam in order to store water—is located on the White River in the Ozark Highlands region of northwest Arkansas. Approximately seventy-three miles long and a maximum of two miles wide, the lake reaches from Eureka Springs (Carroll County) roughly to Fayetteville (Washington County). About 450 miles of shoreline extend through three counties: Benton, Carroll and Washington. The multi-purpose project provides flood control, hydroelectric generation, water supply, and recreation. While the possibility of a dam on the upper White River was examined as early as 1911, the first feasibility studies by the U.S. Army Corps of Engineers for constructing such …

Berry, Danielle Bunten

aka: Daniel Bunten
Danielle (Dani) Berry was a revolutionary computer game designer who specialized in multi-player games at a time when few in the industry were interested in the idea. She is also remembered for breaking gender boundaries in the industry, having been assigned male at birth but undergoing gender transition late in her career. Berry’s 1983 game M.U.L.E. was listed third on Computer Gaming World’s 1996 list of the best games of all time, and Will Wright, the designer of Sim City, once said, “Ask most game designers what their favorite computer game of all time is, and you’ll get M.U.L.E. as an answer more often than any other title.” She was a major influence upon the likes of Wright and Civilization …

Big Arkie

Big Arkie was a thirteen-foot-long alligator caught in 1952 near Hope (Hempstead County). He was the Little Rock Zoo’s main attraction for eighteen years. Weighing 500 pounds, Big Arkie was considered to be the largest alligator in captivity in the western hemisphere. Big Arkie was spied by a young boy in a flooded pasture by Yellow Creek, which is west of Hope. Ed Jackson, caretaker of a local hunting club, was alerted and, with some companions, wrapped Big Arkie in a fifty-foot-long cable attached to a tractor. The alligator spent one night in Hope’s public children’s pool, encased in chicken wire. On the following day, he was delivered to the Little Rock Zoo, doubled up in a crate. When the …

Birds

The birdlife of Arkansas (its avifauna) comprises just over 400 species, although that number includes more than forty species that have been extirpated (that is, they no longer occur) in the state, are completely extinct, or are rarities that have strayed into Arkansas fewer than a half dozen times. Around 350 species, then, can be found in Arkansas with some regularity. About 145 species nest within the state. Others nest north of Arkansas and spend the winter here or pass through the state in spring and fall as they migrate to and from nesting grounds to the north and wintering areas to the south. Arkansas’s location in the south-central United States means that its avifauna is generally typical of North …

Birdwatching

aka: Birding
Birdwatching, also commonly called birding, is the hobby of observing wild birds. Involvement in the pursuit ranges from enjoying birds on backyard feeders to traveling thousands of miles, nationally or internationally, to see new and different species. Birdwatching is usually considered to be distinct from ornithology, which is the scientific study of birds, although there is considerable overlap between the two. Birdwatchers often keep records of when and where they saw different species. Many people keep records simply for the personal satisfaction of remembering interesting and unusual sightings. Records kept by amateur birdwatchers, however, have made significant contributions to ornithology by helping with the knowledge of bird distribution and abundance. Most birdwatchers keep a life list—a record of all the …

Black Bears

aka: Ursus americanus
Black bears have a rich and varied history in Arkansas. Once giving to the state its unofficial nickname (the “Bear State”), bruins long shaped society and culture in Arkansas and continue to do so. Used for meat, fur, and fat, bears were a valuable commodity in the colonial period. By the early nineteenth century, although bears were still prized for their original uses, the bear-human relationship began to shift toward overt exploitation and bear hunting as a quest for masculine identity. By the first decades of the twentieth century, Arkansas black bears were at the brink of extirpation, but the population has since been revived. Native Americans were the first to hunt black bears in the region. Documented evidence of …

Blakely Mountain Dam

aka: Blakely Dam
aka: Lake Ouachita
Blakely Mountain Dam, located approximately ten miles northwest of Hot Springs (Garland County), was created to provide hydroelectric power and to control flooding along the Ouachita River. It impounds Lake Ouachita, the largest lake completely within the state of Arkansas at over 40,000 acres. In 1870, the U.S. Congress authorized a survey of the Ouachita River to investigate improving its navigability and preventing floods along its course. However, nothing was done until the 1920s, when Harvey Couch and his company, Arkansas Power and Light (AP&L), began searching for sites for hydroelectric dams along the Ouachita River. AP&L built Remmel Dam and Carpenter Dam, which were in place by the early 1930s. Plans for a third, larger dam were announced in …

Blue Mountain Dam and Lake

Blue Mountain Lake is a manmade lake, or reservoir, on Petit Jean River in Logan County. A portion of the lake extends into Yell County. The dam was built in the 1940s as a flood-control project, but since its completion, the lake has also provided numerous recreational opportunities. It is named for Blue Mountain, an outcropping of Mount Magazine. Land patents on farmland where the lake now lies were granted to William Mobly, James Henard, and Augustus Ward, all in 1861. By 1891, an unincorporated community called Patsie had developed in the area. Several cemeteries had to be relocated during the development of the lake. In 1899, when the Choctaw, Oklahoma and Gulf Railroad was built to the north of …

Bobby Hopper Tunnel

Arkansas has seven railroad tunnels but only one highway tunnel. Named for the Arkansas Highway Commission director at the time of the tunnel’s construction, Bobby Hopper, the northwest Arkansas commission representative from Springdale (Washington County), the Bobby Hopper Tunnel is located on Interstate 49 in Washington County just north of the Crawford County line with its closest exit at Winslow (Washington County). U.S. Highway 71, once classified by Reader’s Digest as “one of the most dangerous highways in America,” includes a perilous stretch between Alma (Crawford County) and Fayetteville (Washington County) through the Ozark Plateau. Thus, construction of an alternate route was designed to make the trip safer, as well as reduce travel time. Approved in 1987 and completed in …

Bodark

aka: Osage Orange
aka: Maclura pomifera
aka: Bois d'Arc
aka: Horse Apple
aka: Hedge Apple
The bodark tree (Maclura pomifera) is a common tree in Arkansas, known to live in at least forty-seven of the state’s seventy-five counties. The name “bodark” is a slurring of the French “bois d’arc,” meaning “wood of the bow”—a reference to the Osage Indians’ practice of making bows from the tree. The Osage connection survives in another common appellation, Osage orange, which refers to the unique fruit of the tree, as do other names, such as horse apple and hedge apple. Native to the area encompassing Arkansas, Texas, Oklahoma, Missouri, and Kansas, the bodark tree was among those described by William Dunbar of the Hunter-Dunbar Expedition while proceeding to the Ouachita River. French explorers had already encountered the Osage using …

Botanical Garden of the Ozarks

The Botanical Garden of the Ozarks (BGO) in Fayetteville (Washington County) opened in 2007 on acreage leased from the City of Fayetteville. The nonprofit organization is the result of a grassroots effort to establish a botanical garden with a mission of offering education, entertainment, and recreation to adults and children through a variety of events, programs, classes, and community connections. The Botanical Garden of the Ozarks is a member of the American Horticulture Society—which allows BGO members reciprocal admission to gardens and arboretums across the country—and the American Public Gardens Association, which encourages involvement in gardening for all ages. The Botanical Garden Society of the Ozarks was incorporated in January 1994. The founder and first director was Donna Porter, who …

Bowfin

aka: Grinnell
Bowfin (Amia calva) belong to the primitive North American fish family Amiidae and Order Amiiformes. The family is monotypic and contains a single genus and species (A. calva). Bowfin are basal bony fishes related to gars in the infraclass Holostei. They are native to North America and are commonly found throughout much of the eastern United States, the St. Lawrence River, and Lake Champlain drainages of southern Ontario, and Quebec, Canada. Their range extends farther westward around the Great Lakes into Minnesota and south to the Colorado River in Texas. In Arkansas, A. calva is found in all major river drainages of the Gulf Coastal Plain lowlands and westward through the Arkansas River Valley; they are rarely found in the …

Bowman, Malcolm Cleaburne

Malcolm Cleaburne Bowman was respected worldwide as an analytical chemist, researcher, and author. He and his associates are credited with devising many techniques and processes as well as developing much of the equipment that became common within the fields of chemistry and scientific research. Malcolm Bowman was born on December 6, 1926, in Alcedo, Texas, to Clyde C. Bowman, a Cotton Belt Railroad brakeman and conductor, and Lillian McBee Bowman, a teacher and retail clerk; he was the couple’s only child. The family moved to Pine Bluff (Jefferson County) in 1936. Bowman graduated from Pine Bluff High School and went on to receive a BS in chemistry at Arkansas State Teachers College (now the University of Central Arkansas) in Conway …

Branchiobdellidans

aka: Crayfish Worms
Branchiobdellidans, or crayfish worms, are leech-like, clitellate annelids belonging to the Phylum Annelida and Order Brachiobdellida (single family Brachiobdellidae) that form an obligate, ectosymbiotic association primarily with astacoidean crayfishes. They have long been known as “branchiobdellid worms” because they were considered a separate family of the oligochaetes; however, more recent treatment of these worms as a separate taxonomic order technically renders their epithet more correctly as “branchiobdellidan worms” or simply “branchiobdellidans.” Branchiobdellidans are a monophyletic clade of more than 150 ectosymbiont species within twenty-one genera found throughout North and Central America, Europe, and eastern Asia, of which about fifteen genera and 107 species have been reported from North America, including in Arkansas. However, branchiobdellid fauna in Arkansas need further study. …

Branner, John Casper

John Casper Branner began serving as state geologist for the Arkansas Geological Survey on June 24, 1887, and served in that capacity until the state legislature abolished the position on March 16, 1893. Branner’s tenure was noted for a high standard of professionalism, and he made significant contributions to the economic and geologic resources of Arkansas that lasted for decades. John Branner was born in New Market, Tennessee, on July 4, 1850, to Michael T. Branner, who was a farmer, and Elsie Baker Branner. Educated in the local schools, Branner was an avid reader and developed a deep interest in the natural features of the Tennessee countryside. He enrolled at Maryville College, near Knoxville, Tennessee, but in 1870, after only …

Bridges

At the time Arkansas became a territory, most water crossings were fords. When travelers came to a body of water such as a small river or stream, they would look for the shallowest place and cross there. Generally, these fords were adequate for the small number of early travelers in the territory. But as the population of the state slowly grew and a system of military roads was developed, it became necessary to bridge larger bodies of water to make travel faster and easier for the military and the local population. The first attempts at bridge-building in Arkansas were by private individuals. These individuals applied for a franchise to build a toll bridge, which was granted by the territorial legislature. …

Broadway Bridge

The Broadway Bridge was originally constructed in 1923 as a vehicular structure and replaced in 2017; it is one of six bridges linking the downtown areas of Little Rock (Pulaski County) and North Little Rock (Pulaski County). As the downtown areas of Little Rock and Argenta (present-day North Little Rock) developed in the 1880s, it became apparent that a toll-free bridge independent of the railroad bridges across the Arkansas River was needed. Some people supported the idea of a bridge at the foot of Little Rock’s Main Street, while others thought it should start at Broadway. After years of debate and a series of bridge commissions, the Main Street site was adopted, and the Groton Bridge Company of Groton, New …

Bromine

Bromine (chemical symbol Br) is a highly corrosive, reddish-brown, volatile element found in liquid form. Bromine—along with fluorine, chlorine, and iodine—is part of a family of elements known as the halogens. Arkansas ranks first in the world in the production of bromine, the basis for many widely used chemical compounds. Bromine, along with petroleum and natural gas, is one of the top three minerals produced in Arkansas. The West Gulf Coastal Plain encompasses most of southern Arkansas. During the Paleozoic era (543 to 248 million years ago), this natural division was covered by seawater. Bromine, which occurs naturally in seawater, was extracted from the water by seaweed and plankton. As these organisms decomposed during the Jurassic period (206 to 144 …

Brownlee, Robert

Robert Brownlee was a Scottish stonemason who lived in Little Rock (Pulaski County) from 1837 to 1849. He helped build the first statehouse in Arkansas and several other historic landmarks in Pulaski County. Robert Brownlee was born on April 24, 1813, in Bonkle, Cambusnethan Parish, a tiny community in the Scottish lowlands. He was ninth in a family of seven sons and four daughters born to Margaret and Alexander Brownlee. After a basic education at Murdestoun Estate School near Bonkle, he apprenticed to his older brother, William, a stonecutter. Brownlee was twenty-three when he read about the December 1835 fire that almost destroyed New York City and the need for mechanics to help rebuild the city. That same day, he …

Bryozoans

aka: Ectoprocta
aka: Moss Animals
Bryozoans (commonly called moss animals) are generally sessile, colonial invertebrates that belong to the phylum Bryozoa (or Ectoprocta), which is sometimes combined with two other phyla (Phoronida and Brachiopoda) to form a possible clade within the Deuterostomia. The three are sometimes referred to as the Lophophorata. Fossil bryozoans commonly found in Arkansas can be divided into two broad groups: the lacy colonies and the twig-shaped colonies. One fossil, the Archimedes, is especially abundant in northwestern Arkansas. In the southeastern United States, large gelatinous colonies of P. magnifica are a common sight, sometimes called “dinosaur snot.” These are often seen at Lake Wilhelmina in Polk County, and some have been reported in eastern Arkansas County. The primary uniting characteristic of this …