
Presenter: Chen Zhonghua Length: 3 mins Difficulty: 2/5 Language: English  
Year: 2022 Location: Edmonton Chen Zhonghua Taiji Academy
Wedge-Chen Zhonghua Online Lesson 20220602.Put the wedge under the door. The door and the floor are two locked points. The wedge is in the middle that forces the two ends to extend. Concept involved: Lock the Two Ends and Move the Middle.