Empa, the disposable paper battery that is activated with water
A Swiss institute has developed an extremely versatile paper battery that only needs a drop of water to activate.
Pencil without ink, paper without trees: Nuka makes us write forever
Saving trees and writing endlessly with a pencil and notebook that never ends? Check out these things Nuka made.
The incredible sunflower pollen paper that can be printed, de-printed, reprinted
Printing processes may have found a new ally for the environment: this Singapore-developed sunflower pollen paper.
An interface of the future? The interactive map
An interactive paper on which to print interfaces that work in bluetooth without power? A Purdue team created it.
How to reprint paper and recycle it better
A team has created a method of de-printing the sheets that works with the normal paper already on the market and present in all homes and offices.
