Paper that glows
Many of us likes to read books late till night. But it will be a lot of disturbances to others who are sleeping. Obiviously we could go to other and read. Why to waste electricity.
The idea is to have a book where each page glows in the night like flourescent type.
Obviously the paper cannot be made from trees but then from plastic. Just imagine reading that type of books in the night and also we could use this papers to write on it, like people working in a cave mines,where the light is dim.