When a rope, cable or belt runs along the groove ... Lifts, window blinds and cranes often use pulley systems. Let’s change gear to look at gears. Gears are also wheels attached to a fixed ...

Vancouver and Skamania fire crews were able to set up a rope-and-pulley system to lower an injured hiker 200 feet down a rock wall at Beacon Rock State Park Thursday afternoon. Two hikers had been ...