HIGH VOLTAGE DEMONSTRATION
Electricity - High-frequency Voltage
An unusual electrical demonstration is the result when Westinghouse engineers impress a 60-cycle current to a specially designed wheel.
The constant throwing off of electrons from the tapered points of the spokes, causes the wheel to revolve and this movement creates the impression of a complete circle of faint blue light.
This is one of the man [?] interesting scientific demonstrations made in the high voltage laboratory of the Westinghouse Electric and Manufacturing Company , at Trafford, Pa.
Original Caption by Science Service