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.

How does a mechanic track down a battery-draining electrical draw? This video explains the step-by-step diagnostic process ...

Pencil sketches on paper can be used as sensors that detect a variety of physiological signals, including heart rate, skin temperature and compounds in sweat. Zheng Yan at the University of Missouri ...