Chromatic Aberration. A lens will not focus different colors in exactly the same place because the focal length depends on refraction and the index of refraction for blue light (short wavelengths) is larger than that of red light (long wavelengths).The amount of chromatic aberration depends on the dispersion of the glass. lens will not focus different colors in exactly the same place because the focal length depends on refraction and the index of refraction for blue light (short wavelengths) is larger than that of red light (long wavelengths).
Men's pole vault competition from the 1993 Athletics World Championships in Stuttgart, Germany. 3 men clear 5.90m with Sergey Bubka winning the competition with a 6.00m clearance on his first attempt. His jump at 5.90 was quite possibly the highest jump in the history of the pole vault.en's pole vault competition from the 1993 Athletics World Championships in Stuttgart, Germany. 3 men clear 5.90m with Sergey Bubka winning the competition with a 6.00m clearance on his first attempt. His jump at 5.90 was quite possibly the highest jump in the history of the pole vault.
Pole vaulting is a track and field event in which a person uses a long, flexible pole (which today is usually made either of fiberglass or carbon fiber) as an aid to jump over a bar. Pole jumping competitions were known to the ancient Greeks, Cretans and Celts. It has been a full medal event at the Olympic Games since 1896 for men and 2000 for women. It is typically classified as one of the four major jumping events in athletics, alongside the high jump, long jump and triple jump.