Will Bike Balls help wobbly cyclists?

Travelling on two wheels has just got a little safer – or at least, a lot funnier – with the introduction of a new LED device. Simon Usborne won't play ball.

How fearful should we be about the rise of the robots?

The Foundation for Responsible Robotics this week warned us that we are rushing into a potentially perilous future of autonomous weapons and automated household helpers. Jamie Nimmo asks if the new world will really be so dystopian

How to build a real lightsaber

The idea behind it is genius: a light-weight, powerful tool that uses a blade of energy to slice up disciples of the Dark Side