Off spin Indian spin quartet - E. A. S. Prasanna and Srinivas Venkataraghavan, also Harbhajan Singh and Ravichandran Ashwin of India, Saqlain Mushtaq and Saeed Ajmal of Pakistan, Jim Laker and Graeme Swann of England. Saqlain Mushtaq was credited with the invention of the "doosra", which is bowled with a similar-looking action to the off break but spins the opposite way, just as the leg spinner's googly turns the opposite way from his stock ball. Off spin Off spin is a type of finger spin bowling in the sport of cricket. A bowler who uses this technique is called an off spinner.
Swimming (sport) a crouched position at a 90 degrees angle and push off quicker with the rear leg to increase their launch power. The 1924 Summer Olympics were the first to use the standard 50-meter pool with marked lanes. In the freestyle, swimmers originally dove from the pool walls, but diving blocks were incorporated at the 1936 Summer Olympics. The tumble turn was developed by the 1950s and goggles were first used in the 1976 Olympics. There were also changes in the late 20th century in terms of technique. Breaststrokers are now allowed to dip their heads completely under water to glide,