Evening Republican, Volume 18, Number 231, Rensselaer, Jasper County, 30 September 1914 — Microscopic Motor. [ARTICLE]

Microscopic Motor.

An operable motor measuring about one half inch high by a quarter inch thick was exhibited recently by a jeweler at the University of North Dakota, Grand Forks. This motor, declares the Electrical World, weighs only five thousandths of a pound and its construction required the jeweler’s spare time for a month. A 2.5 volt battery operates this tiny motor.