- published: 18 Aug 2015
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Rodeo ( /ˈroʊdiːoʊ/ or /roʊˈdeɪ.oʊ/) is a competitive sport which arose out of the working practices of cattle herding in Spain, Mexico, and later the United States, Canada, South America and Australia. It was based on the skills required of the working vaqueros and later, cowboys, in what today is the western United States, western Canada, and northern Mexico. Today it is a sporting event that consists of events that involve horses and other livestock, designed to test the skill and speed of the human cowboy and cowgirl athletes who participate. Professional rodeos generally comprise the following events: tie-down roping, team roping, steer wrestling, saddle bronc riding, bareback bronc riding, bull riding and barrel racing. The events are divided into two basic categories: the rough stock events and the timed events. Depending on sanctioning organization and region, other events such as breakaway roping, goat tying, or pole bending may also be a part of some rodeos.
Rodeo, particularly popular today within the Canadian province of Alberta and throughout the western United States, is the official state sport of Wyoming, South Dakota, and Texas. The iconic silhouette image of a "Bucking Horse and Rider" is a federal and state-registered trademark of the State of Wyoming. The Legislative Assembly of Alberta has considered making rodeo the official sport of that province; however, enabling legislation has yet to be passed.
In physics, energy (Greek: ἐνέργεια energeia "activity, operation") is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems. Since work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of nature, along a path of a certain length.
The total energy contained in an object is identified with its mass, and energy (like mass), cannot be created or destroyed. When matter (ordinary material particles) is changed into energy (such as energy of motion, or into radiation), the mass of the system does not change through the transformation process. However, there may be mechanistic limits as to how much of the matter in an object may be changed into other types of energy and thus into work, on other systems. Energy, like mass, is a scalar physical quantity. In the International System of Units (SI), energy is measured in joules, but in many fields other units, such as kilowatt-hours and kilocalories, are customary. All of these units translate to units of work, which is always defined in terms of forces and the distances that the forces act through.