What is 4D printing? 3D printing in time

Over the last year we've been telling you lots about 3D printing. Now at the University of Wollongong in Australia, one research group has developed a 4D printing technique.

Yes, you heard us right, printing in the fourth dimension...

Jenny got in touch with the chief scientist, Professor Marc in het Panhuis, to get answers to all the important questions:

- What's the difference between 3D and 4D printing?

- What have they made using the 4D printing technique so far?

- What are the possibilities for the future?