AFFIRMATIVE ACTION |
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Affirmative action (U.S. English), or positive discrimination (British English), is a policy or a program aimed at increasing the representation of members of groups that have traditionally been discriminated against. This typically focuses on education, employment, government contracting, health care, or social welfare.
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EQUESTRIAN |
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Equestrianism relates to the riding of horses. This broad description includes both riding horses for practical purposes such as in police work or for controlling herd animals on a ranch, as well as recreational and sporting aspects such as horse riding sports, dressage, show jumping, eventing, vaulting and polo. Other horse riding activities include horse-racing, hunting, fox hunting, rodeo, endurance, jousting and cavalry. Often horses are simply used for recreational rides, which many parks and ranches offer to visitors.
In former times equestrianism was closely associated with the military: medieval knights were equestrians, as were their military successors, the cavalry.
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HYDRAULICS |
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Hydraulics is a branch of science and engineering concerned with the mechanical properties of liquids. It is part of the more general discipline of fluid power. The word "hydraulics" comes from the Greek word ὑδϱαυλικός (hydraulikos) which in turn comes from ὕδϱαυλος meaning water organ which in turn comes from ὕδωϱ (water) and αὐλός (pipe). The earliest masters of this art were Hero of Alexandria and Ctesibius. The ancient engineers however focused on sacral and novelty uses of hydraulics, rather than practical applications. One of the founders of modern hydraulics was Benedetto Castelli, a student of Galileo Galilei.
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