THE CLIMBER " Uncle John"............. 攀繩專家 "約翰叔叔"
充分利用磨擦力, 位能和動能的關係而設計的有趣的力學玩具, 只要把握繩索兩靖上下拉扯, Uncle John 便會緩緩向上爬, 動作滑稽有趣, 拍案叫絕. 保証你的學生會感到非常意外和驚喜. 每位Uncle John如手指頭大小, 造型精美, 塑料製成.
Due to friction , Uncle John can climb up the rope, very funny apparatus for student to learn about friction and force.
Item no : KEUN 4991