Simple Machines Pulley Paper 98% iv : DISCOVER two mysterious

iv : DISCOVER two mysterious Beaker Creatures collectibles inside Reactor Pods

40X Stronger than acrylic tapes

Each pack includes 20 tacks in assorted colors

all made in the U

Simple Machines Pulley Paper 98% iv : DISCOVER two mysteriousMPN: 005646 UPC: 895452001367 When a cord is run over a pulley, the direction of the applied force is changed. This is a very useful principle in many different machines, and a basic principle that shows up again and again in physics classes. This device lets students explore and understand this basic principle. This classic wooden model offers children a basic concept of the laws of physics. Desktop sized. Key Features : i : Illustrate the principle