Trials for a robot that builds houses are soon to be underway by the "construction industry". The robot, referred to as a "contour crafter", takes instructions directly from an architect's computerised drawings and then squirts successive layers of concrete on top of one other to build up vertical walls and domed roofs. The robot then fills the hollow walls with more cement.

It's my opinion that they'll never get this thing efficient enough for widespread use, but as Greg Lynn, a leading architect from Venice, California, said. "I believe that aesthetically there's a great potential to make things that have never been seen before." Maybe they will make some neat artwork.