Inventors Max Bogue and Peter Dilworth have invented a unique pen that draws in the air.A colorful spool of plastic thread is fed into the pen.The thread is then extruded as heated plastic that cools and solidifies instantly as it exits the tip.

Graphene is a waste of money, a very senior British professor told me last year during a conversation about government funding for science.It might be useful to a few applications, he complained, but graphene will never be revolutionary: the technology is

When it comes to the fundamental shape and function of construction materials, not much has changed in the last century. Materials may evolve, but the way we use them tends to remain largely the same. The QuaDror system, designed by Dror Benshetrit, is a

Concrete printing sounds like something from the realms of science fiction, but it's very much today's innovation rather than tomorrow's world.A research group at Loughborough University, led by Dr Sungwoo Lim, has developed a 3-D printer that is able to