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An arrow with too much dynamic spine for the bow will not flex and as the string comes closer to the bow stave, the arrow will be forced off to the side. Too little dynamic spine will result in the arrow deforming too much and being propelled off to the other side of the target. In extreme cases, the arrow may break before it can accelerate ...
A recurve bow stores more energy and delivers energy more efficiently than an equivalent straight-limbed bow, giving a greater amount of energy and speed to the arrow. A recurve will permit a shorter bow than the simple straight limb bow for a given arrow energy and this form was often preferred by archers in environments where long weapons ...
Modern compound bows are typically equipped with substantially stiffer arrows than an equivalent draw-length and draw-weight recurve bow would be. Another advantage of the center-shot riser is that the arrow need not bend around the riser (nearly as much or at all) during the shot. Fine-tuning may be accomplished by adjustment of the arrow rest ...
Traditional target arrow (top) and replica medieval arrow (bottom) Modern arrow with plastic fletchings and nock An arrow is a fin-stabilized projectile launched by a bow.A typical arrow usually consists of a long, stiff, straight shaft with a weighty (and usually sharp and pointed) arrowhead attached to the front end, multiple fin-like stabilizers called fletchings mounted near the rear, and ...
The dorsal fin has 15 to 17 spines and 8 to 9 soft rays and the anal fin has 3 spines and 4 to 5 soft rays. There is a deep notch in the pectoral fin and the caudal fin is rounded. The general color of this fish is bright red with varying amounts of black on the fins and a pale-colored gill chamber. [2]
The second cephalic spine is positioned directly behind the base of the first cephalic spine, or illicium [4] and can be pulled down beneath the skin in individuals with a total length greater than 1.3 cm (0.51 in) leaving a small pore to show its location. [8]
Several species of deep-sea fish have luminous organs used to attract prey. Females of the genus Linophryne bear barbels containing luminous organs in addition to an escal light organ attached to the head. In L. arborifera, the top light organ has been likened to a pearl onion and contains luminous bacteria. The barbels, which look like seaweed ...
The bullrout is big headed with bony ridges, [9] a large mouth and a lower jaw which protrudes beyond the upper jaw. There are 7 spines on the operculum. [10] There are 15 robust spines in the dorsal fin [11] and this part of dorsal fin is slightly concave towards the rear with the rearmost soft ray in the dorsal fin being attached to the caudal peduncle by a membrane.