Mão (Hand)
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Definição
Unidade de comprimento igual a exatamente 4 polegadas (10,16 cm), usada internacionalmente para medir a altura de cavalos.
Explicação
Horse height is measured vertically from the ground to the withers (highest point of the shoulder). A horse standing 16 hands tall is 64 inches (162.56 cm) at the withers. Horses under 14.2 hands are classified as ponies. The unit standardized what was previously the width of a human hand, and has been used for horse measurement since at least Henry VIII standardized it in 1541.
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RELATED TERMS
Sistema Imperial
Sistema de medição utilizado principalmente nos Estados Unidos, baseado em unidades inglesas históricas.
Peso Troy
Sistema de pesos utilizado para metais preciosos e pedras preciosas.
Avoirdupois
O sistema padrão de pesos baseado na libra de 16 onças, usado para mercadorias cotidianas.
Cavalo-Vapor
Unidade de potência; o cavalo-vapor mecânico equivale a aproximadamente 745,7 watts.
BTU (Unidade Térmica Britânica)
A quantidade de calor necessária para elevar a temperatura de uma libra de água em um grau Fahrenheit.