Alpha is often used in physics and chemistry as a symbol or in the names of things, for example alpha particles (which are two protons and two neutrons bound together into a particle the same as a helium nucleus). The symbol is also used a lot in mathematics in algebra, for example naming angles.
Recurve bow. A recurve bow is a bow with limbs that curve away from the archer when unstrung. A recurve bow stores more energy and delivers energy more efficiently than the equivalent straight-limbed bow, giving a greater amount of energy and speed to the arrow.
recurve simply due to the nature of the beast and therefore if you are used to a 30lb recurve you might find a 35lb. longbow comfortable. The bracing height of the bow is the distance from the string to the belly of the bow (the part of the bow facing you. when you hold it to shoot). This is often written on the bow (normally 5.5â to 6.5â) set your bow up to this height for. optimum performance.