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.

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

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 ...