Circle changeup the index finger on the seam of the ball and the thumb on the side of the ball to "choke" the ball. According to his autobiography, Nolan Ryan also developed his own circle changeup to add another off-speed pitch without having to throw a slider (as sliders are believed to more frequently cause injuries). Circle changeup In baseball, a circle changeup is a pitch thrown with a grip that includes a circle formation, hence the name circle changeup. The circle is formed by making a circle with the index finger, holding the thumb at the bottom of the ball parallel
What the Ancients Did for Us What the Ancients Did for Us What the Ancients Did for Us is a 2005 BBC documentary series presented by Adam Hart-Davis that examines the impact of ancient civilizations on modern society. The series was produced in conjunction with the Open University and is a departure from the previous series not only in that each episode is an hour long rather than half an hour (though heavily edited half-hour versions have also been shown), but also in that it does not concentrate on a single period of history but rather one ancient civilization per episode including the Chinese, the Indians