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.
How to watch: Viewers in the United States can stream the debate live at CNN.com or through any of the network's mobile apps. No cable authentication will be required. Note that if you're watching through CNNgo, there have been reports that users are asked to provide cable logins after five minutes.