2. The history of the launch throwing of bullet It tells the history Of The of weight goes back historically from the of stones. IN 1857 the English men do an attempt of codification of the launch throwing) and there use bullets of equivalent cannon of 16 English pounds to 7,257 kg of weight. Nowadays this weight is kept equally that the length of the zone of
3.
4.
5. The history divides 4 In 1953, there appears the technology O'Brien. This launch, it does a great change. In him one finds the current technology with exit of backs and an application of new forces, concretly that mas that of rotation. In 1970, Barychnikov invents a new technology, very prójima to that of the launch(throwing) of disc. Also it obtained a new record of the world.
