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Basic line marking machines for turf were available by the late 1800s. [1]: 40 They were originally developed for use on lawn tennis courts.[1]: 40 One of the first such machines, a wheel-to-wheel paint transfer device, was developed by F.H. Ayres and "would be instantly recognizable by users of many of today's machines, which work on the same principle".
In sports, a hash mark or hash line is a short line/bar marking that is painted perpendicular to the sidelines or side barricades, used to help referees and players recognize on-field locations and visually measure distances. Hash marks serve the same function as the graduated markings on measuring tools such as rulers.
Sand-based athletic fields are sports turf playing fields constructed on top of sand surfaces. It is important that turf managers select the most suitable type of sand when constructing these fields, as sands with different shapes offer varied pros and cons. Regular maintenance of sand-based athletic fields is just as important as the initial construction of the field. [1]
The term liquid chalk, or sharkchalk, refers to several different kinds of liquified chalk including liquid-chalk marking pens (with water-soluble ink), liquid-chalk mixtures (for athletic use: rock climbing, weightlifting, gymnastics), and liquid-chalk hobby-craft paints made of cornstarch and food coloring (some with small amounts of flour).
The National Operating Committee on Standards for Athletic Equipment (NOCSAE, pronounced /'nɒxsi/ NOKH-see) is a nonprofit standards organization which develops standards for the manufacture of certain protective athletic equipment in the sports of baseball, football, hockey, lacrosse, and polo. NOCSAE conducts and funds scientific research ...
Spalding Athletic Library were a series of sports and exercise books published through "American Sports Publishing Company" from 1892 to 1941. Both brands were owned and founded by American sporting goods manufacturer Spalding. Books covered over 30 different sports and exercises, and over 20 different organizations.