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A set of whippletrees or leader-bars for the two leaders of a four-horse team A whippletree , or whiffletree , [ 1 ] [ 2 ] is a mechanism to distribute force evenly through linkages . It is also referred to as an equalizer , leader bar , or double tree .
Evaluation of the horse's conformation, hoof balance, and shoeing is often a first step in treatment of lameness. A correct, balanced trim is a key component of lameness treatment and prevention. Some cases of lameness, such as angular limb deformities and navicular syndrome, are best managed with special trimming and shoeing.
Note: The pressures for average human and horse are for standing still position. [7] A walking human will exert more than double his standing pressure. A galloping horse will exert up to 3.5 MPa (500 psi). The ground pressure for a pneumatic tire is roughly equal to its inflation pressure.
Wobbler disease or wobbler's syndrome is a broad category of cervical disorders in the horse, including the conditions listed above, as well as equine wobbles anemia and cervical vertebral myelopathy, spinal cord compression (sometimes referred to colloquially among horse owners as "cervical arthritis" due to the arthritis that accumulates in facets).
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The term may also refer to the horse's center of gravity. For the best performance by the horse, as well as for better balance of the rider, the rider must be positioned over the center of balance of the horse. The location of the horse's center of balance depends on a combination of speed and degree of collection.
Compression machines range from very small table top systems to ones with over 53 MN capacity. Gases are often stored and shipped in highly compressed form, to save space. Slightly compressed air or other gases are also used to fill balloons , rubber boats , and other inflatable structures .
The capstan equation [1] or belt friction equation, also known as Euler–Eytelwein formula [2] (after Leonhard Euler and Johann Albert Eytelwein), [3] relates the hold-force to the load-force if a flexible line is wound around a cylinder (a bollard, a winch or a capstan).