Success in Athletics and how to obtain it

164 SUCCESS IN ATHLETICS The centres of rotation are along the line a b, and it will be noticed in 1 and 3 that they do not correspond with the centre of gravity. This unstability automatically produces "air re– sistance." A discus properly thrown ought to incline at a slight upward angle almost throughout the whole of its journey; this aiJgle enables it to cut into the air, which helps to carry a lot of its weight, and consequently increases the length of the throw, and constitutes what is commonly known as "scaling." The athlete should remember that if the discus is thrown at an angle greater than the correct one, or, in other words, too high, it will at once rise face on to the wind. The angle of delivery should be corrected as the missile leaves the hand. It is to be noted that the throwing arm is out over the right hip as the turn is made on the left foot (sketches 2 and 3, pp. 1 56- 7), and the final effort is made as the right foot comes to the ground. (S~e figs. 6o and 61.) Diagram 27. I r \