Pulleys! - mechanical science

Learn how pulleys can be used to transfer force with reduced friction and how to increase force or speed at amazing levels. Build 5 working models including an oil drill, a stationary bike, cranes, bridges and a machine blender. A 36 page activity book is included with innovative experiments and detailed explanation of the different technological principles applied! Booklet with detailed building instructions also included.

Watch a cool video demo on YouTube! (click here) - will open in a new window