Artist Ben Heine doesn’t look so quick on the draw held up at gunpoint. However, the 30-year-old was in no danger of being rubbed out as he was merely facing one of his huge ‘3D’ pencil ...

If you need a potentiometer for a project, chances are pretty good that you’re not going to pick up a pencil and draw one. Then again, if you’re teaching someone how a variable resistor… ...