Then he and his team run the paper through a special printer that actually prints a lens on the paper. "You should think of it as a drop of glue, a tiny drop of glue," he says, "except it is an ...

they created a microscope by using origami or folding techniques to combine paper and a basic lens. The end product was portable and much less fragile than a regular microscope. Yet it can do ...

He shows us a working lens made from transparent plastic tube, and even successfully smoulders a piece of paper with it under the anaemic British sun. His lens, with its circular profile tube ...