Laura Spelman Rockefeller was an American educator and philanthropist who was the wife of John D. Rockefeller of the famed Rockefeller family. Both of Spelman’s parents were active in social causes; her father, a wealthy businessman, was an abolitionist involved in the Underground Railroad, and her

David Rockefeller was an American banker and philanthropist, a member of the famed Rockefeller family. He was the youngest of the five sons of John D. Rockefeller, Jr. David Rockefeller received a B.S. degree from Harvard University (1936), did graduate study in economics at Harvard and at the

John D. Rockefeller was an American industrialist and philanthropist, founder of the Standard Oil Company, which dominated the oil industry and was the first great U.S. business trust. He is the major historical figure behind the famed Rockefeller family and widely considered the richest American

John D. Rockefeller III was an American philanthropist, a member of the famed Rockefeller family. He was the eldest of the five sons of John D. Rockefeller, Jr. After graduating from Princeton University (1929), he joined the family’s enterprises, becoming, by 1931, trustee of the Rockefeller

John D. Rockefeller, Jr. was an American philanthropist, the only son of John D. Rockefeller, Sr., and heir to the Rockefeller fortune, who built Rockefeller Center in New York City and was instrumental in the decision to locate the United Nations in that city. After graduation from Brown

John D. Rockefeller was an American industrialist and philanthropist, founder of the Standard Oil Company, which dominated the oil industry and was the first great U.S. business trust. He is the major historical figure behind the famed Rockefeller family and widely considered the richest American

John D. Rockefeller III was an American philanthropist, a member of the famed Rockefeller family. He was the eldest of the five sons of John D. Rockefeller, Jr. After graduating from Princeton University (1929), he joined the family’s enterprises, becoming, by 1931, trustee of the Rockefeller

John D. Rockefeller, Jr. was an American philanthropist, the only son of John D. Rockefeller, Sr., and heir to the Rockefeller fortune, who built Rockefeller Center in New York City and was instrumental in the decision to locate the United Nations in that city. After graduation from Brown

Laura Spelman Rockefeller was an American educator and philanthropist who was the wife of John D. Rockefeller of the famed Rockefeller family. Both of Spelman’s parents were active in social causes; her father, a wealthy businessman, was an abolitionist involved in the Underground Railroad, and her

Laurance S. Rockefeller was an American venture capitalist and philanthropist and a member of the famed Rockefeller family. He was the third of the five sons of John D. Rockefeller, Jr. He graduated from Princeton University with a degree in philosophy (1932) but became the most entrepreneurial of

Laurance S. Rockefeller was an American venture capitalist and philanthropist and a member of the famed Rockefeller family. He was the third of the five sons of John D. Rockefeller, Jr. He graduated from Princeton University with a degree in philosophy (1932) but became the most entrepreneurial of

Nelson Rockefeller was the 41st vice president of the United States (1974–77) in the Republican administration of Pres. Gerald Ford, four-term governor of New York (1959–73), leader of the liberal wing of the Republican Party, and a member of the famed Rockefeller family. He unsuccessfully sought

Nelson Rockefeller was the 41st vice president of the United States (1974–77) in the Republican administration of Pres. Gerald Ford, four-term governor of New York (1959–73), leader of the liberal wing of the Republican Party, and a member of the famed Rockefeller family. He unsuccessfully sought

William Rockefeller was an American industrialist and financier, a member of the famed Rockefeller family, and known in conjunction with his older brother, John D. Rockefeller, for his role in the establishment and growth of the Standard Oil Company. Rockefeller began his career as a bookkeeper. At

William Rockefeller was an American industrialist and financier, a member of the famed Rockefeller family, and known in conjunction with his older brother, John D. Rockefeller, for his role in the establishment and growth of the Standard Oil Company. Rockefeller began his career as a bookkeeper. At

Winthrop Rockefeller was an American politician and philanthropist and a member of the famed Rockefeller family. He was the second youngest of the five sons of John D. Rockefeller, Jr.. He left college in 1934 and did various kinds of work for the Rockefeller interests—in the oil fields of Texas

mezzotint: …later an instrument called a cradle, or rocker, was used. It resembles a small spade with a toothed edge, and its cutting action throws up rough ridges of metal called burrs. The burrs are scraped away in places intended to be white in the finished print. In the 21st century,…

placer mining: …pan was the rocker, or cradle, named for its resemblance to a child’s cradle. As it was rocked, it sifted large quantities of ore. Gravel was shoveled onto a perforated iron plate, and water was poured over it, causing finer material to drop through the perforations and onto an apron…

gasoline engine: Valves, pushrods, and rocker arms: Valves for controlling intake and exhaust may be located overhead, on one side, on one side and overhead, or on opposite sides of the cylinder. These are all the so-called poppet, or mushroom, valves, consisting of a stem with one end enlarged to…

coin: Early modern minting: The rocker press represents another variation. The bottom roller (actually a quadrant insert, as in the Taschenwerke) remained stationary; the axis of the upper roller rotated about this lower axis as a small circle around a larger, so that the upper die face rolled over a…

rocket, (genus Sisymbrium), genus of 90 species of plants of the mustard family (Brassicaceae). Rockets are often weedy and are common in waste areas and fields of the Northern Hemisphere and mountains in the Southern Hemisphere. The plants bear white or yellow four-petaled flowers and produce

rocket, any of a type of jet-propulsion device carrying either solid or liquid propellants that provide both the fuel and oxidizer required for combustion. The term is commonly applied to any of various vehicles, including firework skyrockets, guided missiles, and launch vehicles used in

firework: …popular form of firework, the rocket, is lifted into the sky by recoil from the jet of fire thrown out by its burning composition; its case is so designed as to produce maximum combustion and, thus, maximum thrust in its earliest stage.

Rocket, pioneer railway locomotive built by the English engineers George and Robert Stephenson. Following the success of the Stockton & Darlington Railway in 1825, the cities of Liverpool and Manchester decided to build a 40-mile (64-km) steam-operated line connecting them. George Stephenson was

cress: …closely related winter cress, or yellow rocket (B. vulgaris), is a common weed, conspicuous in fields for its bright yellow spring flowers. Bitter cress, cuckoo flower, or meadow cress (Cardamine pratensis), a low-growing plant of the Northern Hemisphere, with pinnately divided leaves and small white to rose flowers, is found…

Ike Turner: Their first recording, “Rocket 88”—made at Sam Phillips’s Memphis (Tennessee) Recording Service but released on the Chess label—was a number one rhythm-and-blues hit in 1951, though it was credited to saxophonist Jackie Brenston (who provided the lead vocal) and the Delta Cats. After Brenston’s departure, Ike served as…

rocket and missile system, any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet-propelled missiles in which forward motion results from reaction to the rearward ejection

artillery: Nuclear shells, guided projectiles, and rocket assistance: …improve the range of guns, rocket-assisted projectiles were developed, with moderate success, by the Germans during World War II, and they were the subject of further development in succeeding years. Rocket assistance had certain drawbacks—notably, the loss of payload space in the shell to the rocket motor. A system designed…

candytuft: Rocket candytuft (I. amara) has thick, deeply lobed leaves and large white, often pink-tinged, fragrant flowers on 22-cm (9-inch) stalks. It grows on chalky hills and in fields. The evergreen candytuft (I. sempervirens) is a matting perennial with white flowers and is widely planted in…

rocket: General characteristics and principles of operation: …the turbojet and other “air-breathing” engines in that all of the exhaust jet consists of the gaseous combustion products of “propellants” carried on board. Like the turbojet engine, the rocket develops thrust by the rearward ejection of mass at very high velocity.

larkspur: …genus Consolida) include the common rocket larkspur (Delphinium ajacis or C. ajacis) and its varieties, which grow up to 60 cm (2 feet) tall and have bright blue, pink, or white flowers on branching stalks. Perennial larkspurs—which tend toward blue flowers but vary to pink, white, red, and yellow—include a…

rocket and missile system: Barrage rockets: …their 150-millimetre and 210-millimetre bombardment rockets were highly effective. These were fired from a variety of towed and vehicle-mounted multitube launchers, from launching rails on the sides of armoured personnel carriers, and, for massive bombardments, even from their packing crates. Mobile German rocket batteries were able to lay down heavy…

Elton John: …from this period included “Rocket Man” on Honky Château (1972) and “Don’t Let the Sun Go Down on Me” on Caribou (1974).

rocket: General characteristics and principles of operation: …the turbojet and other “air-breathing” engines in that all of the exhaust jet consists of the gaseous combustion products of “propellants” carried on board. Like the turbojet engine, the rocket develops thrust by the rearward ejection of mass at very high velocity.

space exploration: Soviet Union: …which five years later became Scientific-Research Institute 3 (NII-3). In its early years the organization did not work directly on space technology, but ultimately it played a central role in Soviet rocket development.

the Ramones: …their eponymous debut (1976) and Rocket to Russia (1977). With a shifting lineup, they continued to record and perform into the 1990s, disbanding in 1996. In 2002 the Ramones were inducted into the Rock and Roll Hall of Fame, and in 2011 they received a Grammy Award for lifetime achievement.

Anthony Boucher: Rocket to the Morgue (1942), a Sister Ursula novel, featured thinly veiled portraits of science fiction writers such as Robert Heinlein and L. Ron Hubbard.

grenade: …type of grenade is the antitank grenade, which contains a special shaped-charge explosive that can pierce even the heavy armour of a tank. Since these are usually delivered by small rockets launched from shoulder-held tubes, they are commonly referred to as rocket-propelled grenades.

Boeing Company: Rockwell International Corporation: The company’s Rocketdyne division (established as part of North American Aviation in 1955) developed the rocket engines used in many U.S. space programs, including those for the three stages of the Saturn V rocket and the main engines of the shuttle orbiter.

the Rocketeer, American comic strip character created by writer and artist Dave Stevens in 1982. The character had its genesis in a backup story in Starslayer, a fantasy comic by independent publisher Pacific Comics. Drawing on the Commando Cody movie serials of the 1950s and pulp novels of the

the Rocketeer: In 1991 Disney released The Rocketeer, a live-action feature film directed by Joe Johnston. Although the film received generally positive reviews, it underperformed at the box office, and Disney chose not to execute its planned option for a pair of sequels. Critics observed that the film might have been…

Bjørn Daehlie is a Norwegian cross-country skier who won more total Olympic Games medals and gold medals than any other male cross-country skier. His Olympic success, combined with his record in World Cup competition and world championships, marked him as arguably the greatest Nordic skier of all

Elton John: During this time Rocketman (2019), a film based on his life, was released. John and Taupin wrote the single “(I’m Gonna) Love Me Again” for the biopic, and it won an Academy Award for best original song.

the Rockettes, world-famous American precision dance team that is especially known for its annual Christmas Spectacular. They are the signature act of the Radio City Music Hall within Rockefeller Center in midtown Manhattan, New York City. The origins of the Rockettes can be traced to 1925, when

mass movement: …of solid rock, known as rockfalls; several types of almost imperceptible downslope movement of surficial soil particles and rock debris, collectively called creep; the subsurface creep of rock material, known as bulging: the multiplicity of downslope movements of bedrock and other debris caused by the separation of a slope section…

scorpionfish, any of the numerous bottom-living marine fish of the family Scorpaenidae, especially those of the genus Scorpaena, widely distributed in temperate and tropical waters. Sometimes called rockfish or stonefish because they commonly live among rocks, scorpionfish are perchlike fish with

mudminnow: In North America the eastern mudminnow (U. pygmaea) is sometimes called rockfish, and the central mudminnow (U. limi) mudfish or dogfish. Mudminnows are often used as bait and sometimes kept in home aquariums.

Crossosomatales, rockflower order of dicotyledonous flowering plants, belonging to the basal rosid group of the Angiosperm Phylogeny Group II (APG II) botanical classification system (see angiosperm). The order is a heterogeneous assemblage of eight families, which can be broken down into two

saxifrage, (genus Saxifraga), any of a genus of flowering plants, of the family Saxifragaceae, native in temperate, subarctic, and alpine areas. About 300 species have been identified. Many of them are valued as rock-garden subjects, and some are grown in garden borders. As a group they are notable

Rockford, city, seat (1836) of Winnebago county, northern Illinois, U.S. It lies on the Rock River, about 90 miles (145 km) northwest of Chicago. Rockford was founded by New Englanders in 1834 as separate settlements (commonly known as Kentville and Haightville, for the founders of each) on each

Anna Peck Sill: …name was not changed to Rockford College until 1892. Sill retired in 1884 and continued to live on the campus until her death.

Anna Peck Sill: …name was not changed to Rockford College until 1892. Sill retired in 1884 and continued to live on the campus until her death.

James Garner: …another hit television series with The Rockford Files, in which he played an easygoing private investigator. He received numerous Emmy Award nominations for his performance, winning in 1977. The show ended in 1980, owing in part to the injuries Garner sustained performing his own stunts. However, he reprised the role…

All-American Girls Professional Baseball League: …Fort Wayne Daisies, and the Rockford Peaches reveal their biases. Players were also required to embody what Wrigley designated as “the highest ideals of womanhood.” On the field, these ideals translated to the wearing of lipstick and short skirts that were extremely ill-suited for sliding into bases. Off the field,…

Anna Peck Sill: …name was not changed to Rockford College until 1892. Sill retired in 1884 and continued to live on the campus until her death.

Kingston: …limits of the town stands Rockfort, a moated fortress dating from the late 17th century and last manned in 1865. On Duke Street stands Headquarters House (formerly the seat of government), built by Thomas Hibbert, an 18th-century merchant; it is one of the few remaining architectural showpieces of a city…

rockfowl, either of the two species of western African birds, genus Picathartes, constituting the subfamily Picathartinae, of uncertain family relationships in the order Passeriformes. Both species, with virtually no feathering on the head, have drab, grayish plumage and are thin-necked,

Rockhampton, city and commercial centre for a large part of central Queensland, Australia, at the head of ocean navigation on the Fitzroy River, 38 miles (60 km) upstream from its mouth on Keppel Bay. The town was laid out in 1858 on Gracemere Station and its name chosen in reference to rock

rabbit: …are actually hares, whereas the rockhares and the hispid hare are rabbits. Rabbits differ from hares in size, life history, and preferred habitat. In general, rabbits are smaller and have shorter ears than hares. They are born without fur and with closed eyes after a gestation period of 30–31 days.…

rockhopper penguin, either of two species of crested penguins (genus Eudyptes, order Sphenisciformes) characterized by its red eyes, a relatively thin stripe of upright yellow feathers extending from the bill to the back of the head above each eye (the superciliary stripe), and a crest of black

Kansas City: The contemporary city: …institutions of higher education include Rockhurst University (1910), Avila University (1916), several Metropolitan Community College campuses, William Jewell College (1849; in Liberty), Park University (1875; in Parkville), the University of Health Sciences College of Osteopathic Medicine (1916), and the Kansas City Art Institute (1885). Kansas City is the world headquarters…

Rocky Mountains, mountain range forming the cordilleran backbone of the great upland system that dominates the western North American continent. Generally, the ranges included in the Rockies stretch from northern Alberta and British Columbia southward to New Mexico, a distance of some 3,000 miles

Huey Smith: …their 1957–58 novelty hits “Rockin’ Pneumonia and the Boogie Woogie Flu” and “Don’t You Just Know It.” The latter, with its “Koobo, kooba, kooba, kooba” chorus, was a favourite of American teenagers. The band’s final hit was the 1959 Smith song “Sea Cruise,” sung by a white youth, Frankie…

A.M. Klein: The Rocking Chair and Other Poems (1948) departs from the Jewish frame of reference in describing the change wrought by industrialization on Quebec.

Rockingham, county, extreme southeastern New Hampshire, U.S. It is bordered by Massachusetts to the south, the Atlantic Ocean to the east, and Maine and Little and Great bays to the northeast; the Piscataqua River constitutes the boundary with Maine. The county is the state’s only coastal lowland,

Princeton: At nearby Rocky Hill is Rockingham State Historic Site, the house used by Washington as his headquarters when the Continental Congress convened in Princeton and where he wrote his Farewell Address to the Armies. Area township, 17 square miles (44 square km). Pop. (2000) borough, 14,203; township, 16,027; (2010) borough,…

Rockingham ware, English earthenware, stoneware, and porcelain made at Swinton, Yorkshire, in a factory on the estate of the Marquess of Rockingham. The pottery was started in 1745, but it was not until 1826 that it assumed the name Rockingham. It continued to operate until 1842. Rockingham

Charles Watson-Wentworth, 2nd marquess of Rockingham was the prime minister of Great Britain from July 1765 to July 1766 and from March to July 1782. He led the parliamentary group known as Rockingham Whigs, which opposed Britain’s war (1775–83) against its colonists in North America. He succeeded

Rockland, county, southeastern New York state, U.S., consisting of a hilly region bordered by the Hudson River to the east and New Jersey to the southwest. Sandstone bluffs known as the Palisades border the Hudson where it narrows below the Tappan Zee area of the river. Among the other waterways

Rockland, city, seat (1860) of Knox county, southern Maine, U.S., on the western shore of Penobscot Bay 81 miles (130 km) northeast of Portland. The site, settled about 1719, was originally part of Thomaston; it was separately incorporated in 1848 as the town of East Thomaston and was renamed

Cocoa-Rockledge: cities, Brevard county, east-central Florida, U.S., on the Indian River (lagoon; part of the Intracoastal Waterway), about 45 miles (70 km) southeast of Orlando. They are linked to Merritt Island, Cape Canaveral, and the city of Cocoa Beach by causeways across the Indian and Banana…

Knute Rockne was a Norwegian-born American gridiron football coach who built the University of Notre Dame in Indiana into a major power in college football and became the intercollegiate sport’s first true celebrity coach. In 1893 Rockne moved to Chicago with his family, and in 1910 he entered

Knute Rockne was a Norwegian-born American gridiron football coach who built the University of Notre Dame in Indiana into a major power in college football and became the intercollegiate sport’s first true celebrity coach. In 1893 Rockne moved to Chicago with his family, and in 1910 he entered

Tom Hardy: …major film role was in RocknRolla (2008), in which he played Handsome Bob, a homosexual gangster, but his breakthrough came that same year with his next film, Bronson, a fictionalized biography of Charles Bronson, a man known as Britain’s most notorious and violent prisoner. Hardy’s tour de force performance, which…

Lakewood, city, Cuyahoga county, northeastern Ohio, U.S., on Lake Erie, just west of Cleveland. Surveyed in 1806 as part of Rockport township, the area was not permanently settled until James Nicholson arrived from Connecticut in 1818; several dozen settlers were there by the following year and

Steven Tyler: Aerosmith: …in the Attic (1975) and Rocks (1976) were released that the band made it into the mainstream rock scene. Smash hits off Toys in the Attic, such as “Sweet Emotion” and “Walk This Way,” as well as the hit “Dream On,” from its 1973 album, fueled the band’s early success.

blenny: The rockskipper (Istiblennius zebra) is a small Hawaiian blenny representative of several that live along shores and can hop about on land. The Hawaiian Runula goslinei and the Pacific R. tapeinosoma, both of which are small, are noted for nipping at swimmers.

landslide: Types of landslides: Rockslides and other types of slides involve the displacement of material along one or more discrete shearing surfaces. The sliding can extend downward and outward along a broadly planar surface (a translational slide), or it can be rotational along a concave-upward set of shear surfaces…

Grand Theft Auto: …created by the American company Rockstar Games and published in 1997 and 1998 by the American Softworks Corporation (ASC Games) for play on video game consoles and personal computers. After an immensely popular debut, Grand Theft Auto went on to generate multiple sequels and expansions, including Grand Theft Auto: Vice…

Rockville, city, seat (1776) of Montgomery county, west-central Maryland, U.S. It is a northwestern suburb of Washington, D.C. The settlement originated during the Revolutionary period around Hungerford’s tavern and was known first as Montgomery Court House and later as Williamsburg. Designated a

rockweed, common name for various species of brown algae growing attached to intertidal rocks. See Fucus;

Rockwell International Corporation, diversified American corporation that was formerly one of the country’s leading aerospace contractors, making launch vehicles and spacecraft for the U.S. space program. The main company was incorporated in 1928 as North American Aviation, Inc., a holding company

hardness tester: The Rockwell hardness tester utilizes either a steel ball or a conical diamond known as a brale and indicates hardness by determining the depth of penetration of the indenter under a known load. This depth is relative to the position under a minor initial load; the…

Rockwell International Corporation, diversified American corporation that was formerly one of the country’s leading aerospace contractors, making launch vehicles and spacecraft for the U.S. space program. The main company was incorporated in 1928 as North American Aviation, Inc., a holding company

Norman Rockwell was an American illustrator best known for his covers for the journal The Saturday Evening Post. Rockwell, a scholarship winner of the Art Students League, received his first freelance assignment from Condé Nast at age 17 and thereafter provided illustrations for various magazines.

Sam Rockwell is an American actor who gained respect for his impeccable performances in a wide variety of roles. He was particularly noted for his specialization in eccentric and offbeat characterizations. Rockwell’s family moved to New York City when he was a toddler, but his parents, both of whom

Rocky, American boxing film, released in 1976, that was the highest-grossing movie of that year, earning more than $117 million at the box office. It was nominated for 10 Academy Awards and won three, including best picture, and made its writer and lead actor, Sylvester Stallone, a star. (Read Gene

Sylvester Stallone: 1985, 1990, 2006, 2015, and 2018) followed, with Stallone directing four of them. The 2015 installment, Creed, was the only sequel not written by Stallone; he cowrote the next installment Creed II (2018). The Creed films featured Rocky Balboa as a boxing trainer and earned strong reviews.…

coastal landforms: Tides: …a beach or on a rocky coast, it causes the shoreline to move accordingly. This movement of the shoreline changes the zone where waves and longshore currents can do their work. Tidal range in combination with the topography of the coast is quite important in this situation. The greater the…

Rocky Flats, U.S. nuclear weapons plant near Denver, Colorado, that manufactured the plutonium detonators, or triggers, used in nuclear bombs from 1952 until 1989, when production was halted amid an investigation of the plant’s operator, Rockwell International Corporation, for violations of

Susan Sarandon: …ingenue in the cult favourite The Rocky Horror Picture Show and starred opposite Robert Redford in The Great Waldo Pepper.

Sylvester Stallone: Seven sequels (1979, 1982, 1985, 1990, 2006, 2015, and 2018) followed, with Stallone directing four of them. The 2015 installment, Creed, was the only sequel not written by Stallone; he cowrote the next installment Creed II (2018). The Creed films featured Rocky Balboa as a boxing

Sylvester Stallone: Seven sequels (1979, 1982, 1985, 1990, 2006, 2015, and 2018) followed, with Stallone directing four of them. The 2015 installment, Creed, was the only sequel not written by Stallone; he cowrote the next installment Creed II (2018). The Creed films featured Rocky Balboa as a boxing trainer and…

James Brown: …The Blues Brothers (1980) and Rocky IV (1985), and attained global status as a celebrity, especially in Africa, where his tours attracted enormous crowds and generated a broad range of new musical fusions. Yet Brown’s life continued to be marked by difficulties, including the tragic death of his third wife,…

Rocky Mount, city, Nash and Edgecombe counties, east-central North Carolina, U.S., about 50 miles (80 km) east-northeast of Raleigh. The area was settled in the mid-1700s by Virginians after the war (1711–13) with the Tuscarora Indians. The name Rocky Mount, first used in 1816 to designate the

spiderflower: Rocky Mountain bee plant, or stinking clover (C. serrulata), is a summer-flowering annual of North American damp prairies and mountains. About 50 to 150 cm (20 to 60 inches) tall, it has three-parted leaves and clusters of spidery pink flowers with long stamens.

bristlecone pine: Oldest living organisms: Of the Rocky Mountain bristlecone pines (P. aristata), the oldest known individual is estimated to be over 2,480 years old.

Billings: …college) in 1927, and to Rocky Mountain College (1898). ZooMontana, a zoological garden housing native and exotic animal species, is a popular attraction. Yellowstone, Glacier, and Grand Teton national parks are nearby. Pictograph Cave State Monument, 7 miles (11 km) southeast, has prehistoric artifacts. Inc. 1885. Pop. (2010) 104,170; Billings…

Arikara: Ashley’s Rocky Mountain Fur Company resulted in the first U.S. Army campaign against a Plains tribe. In response, the Arikara left their villages and adopted a nomadic equestrian lifestyle for a period of years.

Rocky Mountains: Physiography: …structural depression, known as the Rocky Mountain Geosyncline, eventually extended from Alaska to the Gulf of Mexico and became a continuous seaway during the Cretaceous Period (about 145 to 66 million years ago). The ranges of the Canadian and Northern Rockies were created when thick sheets of Paleozoic limestones were…