Speed

In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.

Like velocity, speed has the dimensions of a length divided by a time; the SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.

The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in a vacuum c = 7008299792458000000♠299792458 metres per second (approximately 7008299722222222222♠1079000000 km/h or 7008299963840000000♠671000000 mph). Matter cannot quite reach the speed of light, as this would require an infinite amount of energy. In relativity physics, the concept of rapidity replaces the classical idea of speed.

Born

Born may refer to:

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In music

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Castle

A castle (from Latin: castellum) is a type of fortified structure built in Europe and the Middle East during the Middle Ages by nobility. Scholars debate the scope of the word castle, but usually consider it to be the private fortified residence of a lord or noble. This is distinct from a palace, which is not fortified; from a fortress, which was not always a residence for nobility; and from a fortified settlement, which was a public defence – though there are many similarities among these types of construction. Usage of the term has varied over time and has been applied to structures as diverse as hill forts and country houses. Over the approximately 900 years that castles were built, they took on a great many forms with many different features, although some, such as curtain walls and arrowslits, were commonplace.

A European innovation, castles originated in the 9th and 10th centuries, after the fall of the Carolingian Empire resulted in its territory being divided among individual lords and princes. These nobles built castles to control the area immediately surrounding them, and were both offensive and defensive structures; they provided a base from which raids could be launched as well as protection from enemies. Although their military origins are often emphasised in castle studies, the structures also served as centres of administration and symbols of power. Urban castles were used to control the local populace and important travel routes, and rural castles were often situated near features that were integral to life in the community, such as mills and fertile land.

Zombi 2

Zombi 2 is a 1979 zombie film directed by Lucio Fulci. The film was adapted from an original screenplay by Dardano Sacchetti to serve as a sequel to George A. Romero's Dawn of the Dead, released in Italy as Zombi. It stars Tisa Farrow, Ian McCulloch and Richard Johnson, and featured a score by frequent Fulci collaborator Fabio Frizzi.

The film tells the story of a Caribbean island cursed by voodoo, whose dead residents rise as zombies to attack the living. A scientist's daughter journeys to the island after her father's boat turns up abandoned in New York City. Intended as a return to "classic zombie tales" by its writer, Zombi 2 was filmed in Italy, with further location shooting in New York and Santa Domingo.

Produced on a small budget of ₤410 million, the film earned several times its production costs back in international gross. It attracted controversy upon its United Kingdom release, becoming listed as a "video nasty"; however later years have seen a greater appreciation for the film from critics. Frizzi's score has also been released independently of the film, as well as being performed live on tour by the composer.

Dude Perfect

Dude Perfect is a sports entertainment group who got their start on YouTube. Most known for their trick shots, they are also involved in comedy with their "Stereotypes" series, in which they poke fun at common stereotypes, mostly in the sports world. The group consists of the twins Coby and Cory Cotton, Garrett Hilbert, Cody Jones, and Tyler Toney who are all former high school basketball players and college roommates at Texas A&M University.

The group commented that their shots typically relied more on American football skills than basketball.

History

The group was betting on sandwiches via basketball shots in their backyard, which were eventually recorded on camera, and a video of trick shots at Toney's ranch was eventually released on YouTube. Within a week, the video received 100,000 views. When asked about the name, Toney stated,

Afterwards, a trick shot video from the Christian summer camp Sky Ranch was released, which, as of June 2015, has over 13.9 million views. For every 100,000 views the video received, Dude Perfect pledged to sponsor a child from Compassion International. Afterwards, ESPN's E:60 contacted the group for a segment, and on the third floor of Texas A&M's Kyle Field, Toney converted a shot, which traveled 3.9 seconds, which was a world record at the time. The shot prompted television appearances on ESPN's First Take, Pardon the Interruption, Around the Horn and SportsNation. Eventually, Dude Perfect introduced the Panda mascot, who "developed a cult following at A&M basketball games" when taunting players of the opposing team.