how many horse hairs are on a violin bow
Bow (music) A bow maker or archetier typically uses between 150 and 200 hairs [4] from the tail of a horse for a violin bow. Bows for other members of the violin family typically have a wider ribbon, using more hairs. There is a widely held belief among string players, neither proven nor disproven scientifically, that white hair produces a "smoother" sound and black hair (used mainly for double bass bows) is coarser and thus produces a "rougher" sound. Lower quality (inexpensive) bows often use nylon or synthetic hair. Rosin, or colophony, a hard, sticky substance made from resin (sometimes mixed with wax), is regularly applied to the bow hair to increase friction.
Bowed tendon Tendinitis/tendonitis is inflammation of a tendon. Many times, the tendon tissue is torn. A bowed tendon is a horseman's term for a tendon after a horse has sustained an injury that caused the tendon fibers to be torn, and then healed with "bowed" appearance.