ALL teachers of electrical engineering are aware of the need for a text-book on the drawing and construction of electrical apparatus. This attempt, however, to supply the need is disappointing.

If you imbued hacker technology with the artistic impulses of a crayon-wielding toddler, you’d get something like Harvey Moon’s “Drawing Machine”: a robotic contraption that transforms scanned ...

Arduino enthusiasts that are looking for a new creative project to build, might take inspiration from a new electromechanical drawing machine that has been built, which is powered by music and has ...