The rollers are an Old World family, Coraciidae, of near passerine birds. The group gets its name from the aerial acrobatics some of these birds perform during courtship or territorial flights. Rollers resemble crows in size and build, and share the colourful appearance of kingfishers and bee-eaters, blues and pinkish or cinnamon browns predominating. The two inner front toes are connected, but not the outer one.
Although living rollers are birds of warm climates in the Old World, fossil records show that rollers were present in North America during the Eocene. They are monogamous and nest in an unlined hole in a tree or in masonry, and lay 2–4 eggs in the tropics, 3–6 at higher latitudes. The eggs, which are white, hatch after 17–20 days, and the young remain in the nest for approximately another 30 days.
|Indian roller from Maharashtra, India|
The roller family Coraciidae was introduced (as Coracinia) by the French polymath Constantine Samuel Rafinesque in 1815. It is one of nine families in the order Coraciiformes, which also includes the motmots, bee-eaters, todies, ground-rollers, cuckoo roller and three families of kingfishers. Apart from the ground-rollers, these families do not appear to be particularly closely related to the rollers, and the Coraciiformes are therefore probably polyphyletic. The Coraciiformes family gets its scientific name for Latin coracium, "like a raven", and the English name "roller" from the aerial acrobatics some of these birds perform during courtship or territorial flights. Rollers are divided into two genera as follows.
The roller family has two extant genera as follows:
|Coracias Linnaeus, 1758||
|Eurystomus Vieillot, 1816|
Rollers can be identified as medium-sized birds with strong, slightly hooked beaks and stocky bodies, often with brightly colored plumage. Rollers resemble crows in size and build, ranging from 25 to 27 centimetres (10–11 in) in length. They share the colourful appearance of kingfishers and bee-eaters, blues and pinkish or cinnamon browns predominating. The rollers are similar in general morphology to their relatives in the order Coraciiformes, having large heads on short necks, bright plumage, weak feet and short legs. The two inner front toes are connected, but not the outer one. The weakness of the feet and legs is reflected in their behaviour, rollers do not hop or move along perches and seldom use their feet other than for occasional lurching leaps along the ground pursuing escaping prey. The bill is robust, and is shorter yet broader in the genus Eurystomus, sometimes known as the broad-billed rollers. The broad-billed rollers have brightly coloured bills, whereas those of the Coracias (or true) rollers are black. Other differences between the two genera are in wing length; the more aerial Eurystomus rollers have longer wings (and shorter feet still) than the Coracias rollers, this reflects differences in their foraging ecology. Their calls are "repeated short, gruff caws".
The rollers are found in warmer parts of the Old World. Africa has most species, and is believed to be where the family originated. This is supported by the fact that the related ground-rollers are found on Madagascar. The European roller is completely migratory, breeding in Europe and wintering in Africa, and the dollarbird also leaves much of its breeding range in winter. Other species are sedentary or short-range migrants.
These are birds of open habitats with trees or other elevated perches from which to hunt.
Rollers are noisy and aggressive when defending their nesting territories, which they patrol while displaying their striking plumage. Intruders are attacked with intimidating rolling dives. They are monogamous and nest in an unlined hole in a tree or in masonry, and lay 2–4 eggs in the tropics, 3–6 at higher latitudes. The eggs, which are white, hatch after 17–20 days, and the young remain in the nest for approximately another 30 days. Egg laying is staggered at one-day intervals so that if food is short only the older larger nestlings get fed. The chicks are naked, blind and helpless when they hatch.
Coracias rollers are watch-and wait hunters. They sit in a tree or on a post before descending on their prey and carrying it back to a perch in the beak before dismembering it. They take a wide range of terrestrial invertebrates, and small vertebrates such as frogs, lizards rodents and young birds. They will take items avoided by many other birds, such as hairy caterpillars, insects with warning colouration and snakes.
Eurystomus rollers hunt on the wings, swooping on flying beetles, crickets and other insects which are crushed by their broad deep beaks and eaten on the wing. The azure roller and dollarbird will hunt huge swarms of termites and flying ants which appear after thunderstorms. Tens or hundreds of these rollers may be attracted to large swarms.
The Birmingham Roller is a very popular breed of domesticated pigeon that originated in Birmingham, England, where they were developed via selective breeding, for their ability to do rapid backward somersaults while flying. As the name suggests and as also mentioned by Wendell Levi in his book The Pigeon, this breed was developed in and around the City of Birmingham in England. The Birmingham Roller has a flying type and a show type. Show Rollers are larger than the flying variety, and are bred just for show. A similar breed called a Parlor Roller look much like Birmingham Rollers, but can't fly; rather, they spin backwards, somersaulting on the ground for many yards. Oriental Rollers are another aerial performer and come in many colour varieties. Some fanciers fly their rollers in competition, both locally and nationally. There is even a World Cup competition that includes several other countries. Kits (group of pigeons) are scored for quality and depth, as well as the number of birds that roll at the same time, referred to as a turn or break. The Birmingham Roller is a very popular breed of performing pigeon, with around 10,000 breeders worldwide.Bolliger
Bolliger is a surname. Notable people with the surname include:
Peter Bolliger (born 1937), Swiss rower
Stefan Bolliger, orienteerCedar Point
Cedar Point is a 364-acre (147 ha) amusement park located on a Lake Erie peninsula in Sandusky, Ohio. Opened in 1870, it is the second-oldest operating amusement park in the United States behind Lake Compounce. Cedar Point is owned and operated by Cedar Fair and is considered the flagship of the amusement park chain. Known as "America's Roller Coast", the park features a world-record 72 rides, including 17 roller coasters – the second-most in the world behind Six Flags Magic Mountain. Its newest roller coaster, Steel Vengeance, opened to the public on May 5, 2018.Cedar Point's normal operating season runs from early May until Labor Day in September. The park then reopens only on weekends until the end of October or early November for a Halloween-themed event known as HalloWeekends. Other attractions near the park include a one-mile-long (1.6 km) white-sand beach, an outdoor water park called Cedar Point Shores, an indoor water park called Castaway Bay, two marinas, an outdoor sports complex called Cedar Point Sports Center, and several nearby resorts.
The park has reached several milestones. It is the only amusement park in the world with six roller coasters taller than 200 feet (61 m) – Magnum XL-200, Millennium Force, Wicked Twister, Top Thrill Dragster, Valravn, and Steel Vengeance – and is the only park with roller coasters in all four height classifications. Cedar Point also received the Golden Ticket Award for "Best Amusement Park in the World" from Amusement Today for 16 consecutive years from 1997–2013. The park is the most visited seasonal amusement park in the United States with an estimated 3.6 million visitors in 2017. The park also has several buildings that are listed on the National Register of Historic Places.Cleopatra
Cleopatra VII Philopator (Koinē Greek: Κλεοπᾰ́τρᾱ Φιλοπάτωρ, romanized: Kleopátrā Philopátōr; 69 – 10 or 12 August 30 BC) was the last active ruler of the Ptolemaic Kingdom of Egypt, nominally survived as pharaoh by her son Caesarion. As a member of the Ptolemaic dynasty, she was a descendant of its founder Ptolemy I Soter, a Macedonian Greek general and companion of Alexander the Great. After the death of Cleopatra, Egypt became a province of the Roman Empire, marking the end of the Hellenistic period that had lasted since the reign of Alexander (336–323 BC). While her native language was Koine Greek, she was the first Ptolemaic ruler to learn the Egyptian language.In 58 BC, Cleopatra presumably accompanied her father Ptolemy XII during his exile to Rome, after a revolt in Egypt allowed his eldest daughter Berenice IV to claim the throne. The latter was killed in 55 BC when Ptolemy XII returned to Egypt with Roman military assistance. When Ptolemy XII died in 51 BC, he was succeeded by Cleopatra and her younger brother Ptolemy XIII as joint rulers, but a falling-out between them led to open civil war. After losing the 48 BC Battle of Pharsalus in Greece against his rival Julius Caesar in Caesar's Civil War, the Roman statesman Pompey fled to Egypt, a Roman client state. Ptolemy XIII had Pompey killed while Caesar occupied Alexandria in pursuit of Pompey. Caesar, a consul of the Roman Republic, attempted to reconcile Ptolemy XIII with Cleopatra. Ptolemy XIII's chief adviser Potheinos viewed Caesar's terms as favoring Cleopatra, and so his forces, which eventually fell under the control of Cleopatra's younger sister, Arsinoe IV, besieged Caesar and Cleopatra at the palace. The siege was lifted by reinforcements in early 47 BC and Ptolemy XIII died shortly thereafter in the Battle of the Nile. Arsinoe IV was exiled to Ephesus, and Caesar, now an elected dictator, declared Cleopatra and her younger brother Ptolemy XIV as joint rulers of Egypt. However, Caesar maintained a private affair with Cleopatra that produced a son, Caesarion (Ptolemy XV). Cleopatra traveled to Rome as a client queen in 46 and 44 BC, staying at Caesar's villa. When Caesar was assassinated in 44 BC, Cleopatra attempted to have Caesarion named as his heir, but this fell instead to Caesar's grandnephew Octavian (known as Augustus by 27 BC, when he became the first Roman emperor). Cleopatra then had Ptolemy XIV killed and elevated Caesarion as co-ruler.
In the Liberators' civil war of 43–42 BC, Cleopatra sided with the Roman Second Triumvirate formed by Octavian, Mark Antony, and Marcus Aemilius Lepidus. After their meeting at Tarsos in 41 BC, Cleopatra had an affair with Antony that would eventually produce three children: Alexander Helios, Cleopatra Selene II, and Ptolemy Philadelphus. Antony used his authority as a triumvir to carry out the execution of Arsinoe IV at Cleopatra's request. He became increasingly reliant on Cleopatra for both funding and military aid during his invasions of the Parthian Empire and Kingdom of Armenia. In the Donations of Alexandria, Cleopatra's children with Antony were declared rulers over various erstwhile territories under Antony's authority. This event, along with his marriage to Cleopatra and divorce of Octavian's sister Octavia Minor, led to the Final War of the Roman Republic. After engaging in a war of propaganda, Octavian forced Antony's allies in the Roman Senate to flee Rome in 32 BC and declared war on Cleopatra. The naval fleet of Antony and Cleopatra was defeated at the 31 BC Battle of Actium by Octavian's general Agrippa. Octavian's forces invaded Egypt in 30 BC and defeated those of Antony, leading to his suicide. When Cleopatra learned that Octavian planned to bring her to Rome for his triumphal procession, she committed suicide by poisoning, with the popular belief being that she was bitten by an asp.
Cleopatra's legacy survives in numerous works of art, both ancient and modern. Roman historiography and Latin poetry produced a generally polemic and negative view of the queen that pervaded later Medieval and Renaissance literature. In the visual arts, ancient depictions of Cleopatra include Roman and Ptolemaic coinage, statues, busts, reliefs, cameo glass, cameo carvings, and paintings. She was the subject of many works in Renaissance and Baroque art, which included sculptures, paintings, poetry, theatrical dramas such as William Shakespeare's Antony and Cleopatra (1608), and operas such as George Frideric Handel's Giulio Cesare in Egitto (1724). In modern times Cleopatra has appeared in both the applied and fine arts, burlesque satire, Hollywood films such as Cleopatra (1963), and brand images for commercial products, becoming a pop culture icon of Egyptomania since the Victorian era.Fédération Internationale de Roller Sports
The Fédération Internationale de Roller Sports (FIRS; English: International Federation of Roller Sports) was the world governing body for roller sports, including skateboarding, rink hockey, inline hockey, inline speed skating, inline alpine, downhill, roller derby, roller freestyle, inline freestyle, aggressive inline skating, inline figure skating and artistic roller skating. It was established in April 1924 in Montreux, Switzerland by two Swiss sportsmen, Fred Renkewitz and Otto Myer, who had close connections to the International Olympic Committee.The FIRS gathered more than 100 national federations, including countries from every continent and they are affiliated with the International Skating Union. Park terrain skateboarding will become an Olympic sport in 2020.A proposal to dissolve the federation and merge with the International Skateboarding Federation to form a new body known as World Skate was ratified in September 2017.Kingda Ka
Kingda Ka is a steel accelerator roller coaster located at Six Flags Great Adventure in Jackson, New Jersey. It is the world's tallest roller coaster, the world's second fastest roller coaster, and was the second strata coaster (over 400' tall) ever built. It was built by Stakotra, a subcontractor to Intamin. Riders must be at least 54 inches (137 cm) tall.The train is launched by a hydraulic launch mechanism to 128 miles per hour (206 km/h) in 3.5 seconds. At the end of the launch track, the train climbs the main top hat tower, reaching a height of 456 feet (139 m), followed by a drop of 418 feet (127 m) and spanning over a 3,118-foot-long (950 m) track by the end of the ride.List of roller coaster rankings
Roller coasters are amusement rides developed for amusement parks and modern theme parks. During the 16th and 17th centuries, rides consisting of wooden sleds that took riders down large slides made from ice were popular in Russia. The first roller coasters, where the train was attached to a wooden track, first appeared in France in the early 1800s. Although wooden roller coasters are still being produced, steel roller coasters are more common and can be found on every continent except Antarctica.Ranked by height, speed, length, inversions, and steepness, roller coasters are also rated through public opinion polls. Amusement parks often compete to build the tallest, fastest, and longest rides to attract thrill seekers and boost overall park attendance. However, many records do not usually last long. When Magnum XL-200 opened in 1989, it began a new era of roller coasters and increased competition among parks to set new world records. The Magnum XL–200 was the first complete-circuit roller coaster built over 200 feet (61 m). Other notable roller coasters include Formula Rossa which reaches a top speed of 149 miles per hour (240 km/h), Kingda Ka which stands at 456 feet (139 m) tall, and Steel Dragon 2000 which measures 8,133 feet (2,479 m) in length.Roller Hockey World Cup
The World Skate Roller Hockey World Cup is the international championship for roller hockey organized by World Skate.
The world championship tournament is held every two years, on the odd years. The first event was held in 1936, in the city of Stuttgart. Through the 2015 World Cup, only five countries have taken the Roller Hockey World Cup: England winning two times, Portugal winning sixteen times, Spain winning seventeen times, Italy winning four times and Argentina winning five times.
Since the 2003 World Cup all events have been 16-team events, featuring a four group round-robin tournament with four teams in each group. The top two teams in each group advance to an eight team knockout final series.Roller coaster
A roller coaster is a type of amusement ride that employs a form of elevated railroad track designed with tight turns, steep slopes, and sometimes inversions. People ride along the track in open cars, and the rides are often found in amusement parks and theme parks around the world. LaMarcus Adna Thompson obtained one of the first known patents for a roller coaster design in 1885, related to the Switchback Railway that opened a year earlier at Coney Island. The track in a coaster design does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained. Two or more cars hooked together are called a train. Some roller coasters, notably Wild Mouse roller coasters, run with single cars.Roller coaster elements
Roller coaster elements are the individual parts of roller coaster design and operation, such as a track, hill, loop, or turn. Variations in normal track movement that add thrill or excitement to the ride are often called "thrill elements".Roller coaster inversion
A roller coaster inversion is a roller coaster element in which the track turns riders upside-down and then returns them an upright position. Early forms of inversions, dating as far back as 1848 on the Centrifugal Railway in Paris, were vertical loops that were circular in nature. They produced massive g-force that was often dangerous to riders, and as a result, the element eventually became non-existent with the last rides to feature the looping inversions being dismantled during the Great Depression. In 1975, designers from Arrow Development created the corkscrew, reviving interest in the inversion during the modern age of steel roller coasters. Since then, the element have evolved from simple corkscrews and vertical loops to more complex inversions such Immelmann loops and cobra rolls. Featuring fourteen inversions, The Smiler at Alton Towers holds the world record for the number of inversions on a roller coaster.Roller derby
Roller derby is a contact sport played by two teams of five members roller skating counter-clockwise around a track. Roller derby is played by approximately 1,250 amateur leagues worldwide, mostly inside the United States.Game play consists of a series of short match-ups (jams) in which both teams designate a jammer (who wears a star on the helmet). The jammer scores points by lapping members of the opposing team. The teams attempt to hinder the opposing jammer while assisting their own jammer—in effect, playing both offense and defense simultaneously.While the sport has its origins in the banked-track roller-skating marathons of the 1930s, Leo Seltzer and Damon Runyon are credited with evolving the sport to its competitive form. Professional roller derby quickly became popular; in 1940, more than 5 million spectators watched in about 50 American cities. In the ensuing decades, however, it predominantly became a form of sports entertainment, where theatrical elements overshadowed athleticism. Gratuitous showmanship largely ended with the sport's grassroots revival in the first decade of the 21st century. Although roller derby retains some sports entertainment qualities such as player pseudonyms and colorful uniforms, it has abandoned scripted bouts with predetermined winners.Modern roller derby is an international sport, mostly played by amateurs. Most teams are all-female teams, but there is a growing number of male, unisex, and junior roller derby teams. It was under consideration as a roller sport for the 2020 Summer Olympics. FIRS, recognized by the International Olympic Committee as the official international governing body of roller sports, released its first set of Roller Derby Rules for the World Roller Games that took place September 2017 in Nanjing, China. Most modern leagues (and their back-office volunteers) share a strong "do-it-yourself" ethic that combines athleticism with the styles of punk and camp. As of 2019, the Women's Flat Track Derby Association (WFTDA) had 468 full member leagues and 46 apprentice leagues.Roller hockey
Roller hockey is a form of hockey played on a dry surface using wheeled skates. The term "Roller hockey" is often used interchangeably to refer to three variant forms chiefly differentiated by the equipment used: traditional "Roller hockey" (Quad hockey, Rink hockey), played with quad skates and a ball (without contact), "Inline hockey", played with inline skates and puck (without contact) and "Skater hockey", played with quad skates or inline skates and plastic ball (with contact like ice hockey). Most professional inline hockey games take place on an indoor or outdoor sport court (a type of plastic interlinking tiles used to create a skating surface). Otherwise, any dry surface can be used to host a game, typically a roller rink, macadam, or cement. Combined, roller hockey is played in nearly 60 countries worldwide.Roller hockey (quad)
Rink hockey redirects here. It should not be confused with rink bandy or rinkball.
Roller hockey (in British English), rink hockey (in American English) or quad hockey is a team sport that enjoys significant popularity in a number of Latin countries.
Two five-man teams (four skaters and one goalkeeper) try to drive the ball with their sticks into the opponents' goal. The ball can only be put in motion by a stick, not the skate, otherwise a foul will be stated. The game has two 25-minute halves, plus up to two 5-minute periods to settle ties with the clock stopping when the ball becomes dead.
Players – including the goalie – use quad skates, whereas inline skates are used in inline hockey. Excessive contact between players is forbidden in rink hockey, unlike inline hockey.
Roller Hockey was a demonstration rollersport in the 1992 Summer Olympics in Barcelona. There have been 43 editions of the Roller Hockey World Cup, with Latin countries dominating the sport since the 1940s: Spain (17 World titles), Portugal (16 World titles), Argentina (5 World titles) and Italy (4 World titles). Other countries, such as France, Brazil, Germany, Switzerland, Andorra and England are regular international competitors, but rarely overcome the traditional powers.
Roller Hockey is a very fast sport, which may create a problem for TV transmissions, and new rinks are built using blue or white pavement to make the ball more visible on TV.Roller skating
Roller skating is the traveling on surfaces with roller skates. It is a form of recreational activity as well as a sport, and can also be a form of transportation. In fact, as the United States readied for World War II, the government entertained the notion to add roller skates as essential equipment to move infantry around Europe to save gas. Skates generally come in three basic varieties: quad roller skates, inline skates or blades and tri-skates, though some have experimented with a single-wheeled "quintessence skate" or other variations on the basic skate design. In America, this hobby was most popular first between 1935 and the early 1960s and then in the 1970s, when polyurethane wheels were created and disco music oriented roller rinks were the rage and then again in the 1990s when in-line outdoor roller skating, thanks to the improvement made to inline roller skates in 1981 by Scott Olson, took hold.Steel roller coaster
A steel roller coaster is a roller coaster that is defined by having a track made of steel. Steel coasters have earned immense popularity in the past 50 years throughout the world. Incorporating tubular steel track and polyurethane-coated wheels, the steel roller coasters can provide a taller, smoother, and faster ride with more inversions than a traditional wooden roller coaster.
Arrow Dynamics first introduced the steel roller coaster to feature tubular track to the thrill industry with their creations of the Matterhorn Bobsleds (Disneyland) in 1959 and the Runaway Mine Train (Six Flags Over Texas) in 1966.
As of 2006, the oldest operating steel roller coaster in North America is Little Dipper at Memphis Kiddie Park in Brooklyn, Ohio and has been operating since April 1952. The oldest operating steel rollercoaster in the world is Montaña Suiza at Parque de Atracciones Monte Igueldo (Spain). It has been operating since 1928.Tortricidae
The Tortricidae are a family of moths, commonly known as tortrix moths or leafroller moths, in the order Lepidoptera. This large family has over 10,350 species described, and is the sole member of the superfamily Tortricoidea, although the genus Heliocosma is sometimes placed within this superfamily. Many of these are economically important pests. Olethreutidae is a junior synonym. The typical resting posture is with the wings folded back, producing a rather rounded profile.
Notable tortricids include the codling moth and the spruce budworm, which are among the most well-studied of all insects because of their economic impact.