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NASP (organization) – Initialism for the National Archery in the Schools Program, a youth archery program founded and based in the U.S. but also operating in several other countries. nock (equipment) – The notch at the rear end of an arrow; also the notches at the ends of the bow limbs to which the bowstring is attached, or looped over
Until the mid-1990s, foam concrete was regarded as weak and non-durable with high shrinkage characteristics. [1] This is due to the unstable foam bubbles resulted in foam concrete having properties unsuitable for producing very low density (Less than 300 kg/m 3 dry density) as well as load bearing structural applications. It is therefore ...
3D target — animal/human-shaped mannequin, commonly made from plastic/fiberglass, corkwood or high-density styrofoam/foam rubber, though some exotic models (e.g. the infamous "The Ex") have elaborately designed internal contents resembling anatomical organs, skeletons and blood and may even be overmolded with ballistic gelatin.
Field archery is any archery discipline that involves shooting at outdoor targets of varying and often unmarked distance, typically in woodland and rough terrain.. Being a traditional field sport as well as a widely recognized competitive sport in its own right, field archery can be used to improve the techniques and fitness required for bowhunting in a realistic wilderness setting.
The core material is normally of low strength, but its greater thickness provides the sandwich composite with high bending stiffness with overall low density. 2)Open- and closed-cell-structured foams like Polyethersulfone , polyvinylchloride , polyurethane , polyethylene or polystyrene foams, balsa wood , syntactic foams , and honeycombs are ...
The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...