xujie li / Regenerator

How many papers will be wasted everyday? Thus how many trees will be cut for making papers?Maybe we will throw away the papers or pieces of newspaper that we have used. So,it is a great waste.So i get the idea.It is a machine i call it REGENERATOR.When you have some old papers or books,don't throw them away,you can change for some new books with the REGENERATOR. You can throw some old papers into the machine from the entrance.When you throw something not papers,the scanner will find it and not pen the entrance for you.Then it will weigh the papers.Then it will provide some books equal in value. You can choose one from the touching sreen