eLearning Lesson 2 by Tay Kun Yao (19)

1. The clock and the white rollers uses gear system.

2.The Door uses linkages to open and to stay open.

3. The water tap uses levers to to switch on.

I think the chairs should have a linkage system at the legs so that you can fold it whenever not in use to maximise the space you have around in your house/room.