Pitch Diameter and Drive Ratio. Pulleys and belts have two uses; to increase or reduce speed or torque, or to transfer power from one shaft to another. If the transfer of power is all you need, then two pulleys of the same diameter will do the trick.
Last night's Republican presidential debate drew an average of 22.9 million viewers for CNN, making it the most watched program in the network's 25-year history, the channel reported Thursday. The ratings were larger than the average NFL broadcast, at 19 million viewers, receives.
A further 310,000 (6.6%) watched BBC2's repeat of the debate between 11.30pm and 1am. Last Thursday's first leaders' debate attracted a live audience of 9.4 million viewers (37%) on ITV1 between 8.30pm and 10pm.