People in its infancy with tillage implements and material production invent a weapon of war. The first weapons were different bits and stone axes, which can fight only in direct contact with the enemy. Always been sought such weapons, which can hit your opponent at a distance and carry out effective hunting of wild animals. One of these less effective weapon could destroy the enemy at a great distance became onions. Bow was so effective weapon that could survive more than a century, and even more than one millennium and in our times, is still used in many sports. Classic bow looked like a wooden or metal arc between the ends of the tightly stretched strong thread. Thus, this pulling thread people creates enormous potential energy of the arc in the bow, as well as in most yarns. Once the thread is released, all of this energy is released immediately and thus pushes the boom, which was geared for the thread with great force. Arrow has a form that is easily able to cut through the air and keep the rectilinear motion. Rectilinear motion of the boom is also saved due to the fact that the boom has a weighted tip, which serves as the energy storage and inertia. Due to this property booms, they can shoot not only straightforward, but also under the arc path, that is to run the boom up and at a certain distance it will sink to the bottom so hitting its target downwards. In ancient and medieval armies, people who had good vision and know how to accurately shoot a bow, collected in separate pens archers. They are usually found in the most recent ranks of troops and carried out the very first attack with a bow. Thus, archers beat out a certain number of enemy troops before direct impact on the battlefield. Archers were considered elite troops, which were not allowed into the play - fighting with the enemy. Archers are the heroes of many computer and online games, as independent fighting units that are able to deal with small detachments of the enemy. In these games, you have to master the technique of shooting with a bow, learn to make well - aimed shots, and make shots on a certain trajectory, making an amendment to the earth's gravity and wind. By the way, the wind can be a serious problem for the archer and to perform accurate shot. However, except for war games, sports games presented here. In these games, a large number of archers compete in archery tag on targets. Prove its superiority in these games will not very easy.